Role: Front Office C# Senior Developer - VP Location: London Contract: 6 Months (PAYE) You will be joining an exciting team on a new project to deliver several new global services used directly by the business. These will be used by over 380 users and represent a key part of our strategy. This strategy is to transform our area delivering new services with next generation technology and modern practices. We are replacing older C++ services - whose function and requirements have changed compared to today. As part of this work, analysis of the existing system and requirement discovery will be needed. This is a great opportunity to deliver improvements for the firm. All of these sub-projects offer great exposure to linear products and working with the business. Technical & System Performance Calibration C# Mastery (threading, memory management, and concurrency) High-Availability (active-active, hot-hot, zero-downtime distributed systems) Messaging experience (Solace or similar like Kafka/RabbitMQ) Backend focus with UI-awareness for BFF interaction Must Have C# Real time data/streaming API design experience Server side development experience (threading, memory management, performance) Desirable K8S AI/LLM experience (e.g. Claude, Codex, Agents and Agentic flow) Modernization & Domain Expertise Legacy code analysis (ability to dissect existing C++ systems) Financial domain knowledge (Fixed Income, bond curves, capital markets) Evaluating Ownership Mindset (No BA, No QA) Direct business engagement and requirement gathering Full ownership of testing (TDD, automated integration, benchmarking) Production support and L3 rotation engagement Culture & Distributed Team Dynamics Rigorous code reviews and craftsmanship (avoiding AI slop) Collaboration across distributed teams (14 people, 4 cities) Sub-projects & Responsibilities Permissions management Controls for marking and spreading Delegation of controls/group management Providing different levels of control from instrument level, book, sector Administration functions, auditability, and security of prime concern Pricing Service (Backend For Frontend) Support Bond Curve configuration screens (add constituents to the bond curves) Multitude of functions to support UI interaction for pricing Pricing blotter support Adapt messages to proprietary Pricing Engine format sent and received over Solace API design to be flexible - reuse where possible for curve construction for Rates, FX, and other problem domains About Barclays Barclays is a British universal bank. It is diversified by business, by different types of customers and clients, and by geography. Barclays businesses include consumer banking and payments operations around the world, as well as a top-tier, full service, global corporate and investment bank, all of which are supported by its service company which provides technology, operations and functional services across the Group. Values Everything Barclays does is shaped by its five values of Respect, Integrity, Service, Excellence and Stewardship. The Barclays values inform the foundations of its relationships with customers and clients, but they also shape how Barclays measures and rewards the performance of colleagues. Simply put, success is not just about what you achieve, but about how you achieve it. Diversity Barclays aims to foster a culture where individuals of all backgrounds feel confident in bringing their whole selves to work, feel included and their talents are nurtured, empowering them to contribute fully to Barclays vision and goals. Hybrid Working Barclays is currently in the early stages of implementing a hybrid working environment, which means that many colleagues spend part of their working hours at home and part in the office, depending on the nature of the role they are in. Barclays is flexible on how this works and it may continue to change and evolve. Depending on your team, typically this means that colleagues spend a minimum of between 20% to 60% of their time in the office, which could be over a week, a month or a quarter. However, some colleagues may choose to spend more time in the office over a typical period than their role type requires. Barclays also has a flexible working process where, subject to business needs, all colleagues globally are able to request work patterns to reflect their personal circumstances Your Benefits As a contract employee of Randstad Sourceright, you'll receive a wide range of financial and personal benefits. There's enrolment in a pension plan (after 12 weeks on assignment) and holiday pay. You'll also get 24/7 access to an Employee Assistance Programme, designed to help you deal with any problems that could be affecting your home or work life. Plus, there's discounts at heaps of high street shops, restaurants and entertainment - from Asda to Zizzi Italian restaurants.
Aug 26, 2026
Full time
Role: Front Office C# Senior Developer - VP Location: London Contract: 6 Months (PAYE) You will be joining an exciting team on a new project to deliver several new global services used directly by the business. These will be used by over 380 users and represent a key part of our strategy. This strategy is to transform our area delivering new services with next generation technology and modern practices. We are replacing older C++ services - whose function and requirements have changed compared to today. As part of this work, analysis of the existing system and requirement discovery will be needed. This is a great opportunity to deliver improvements for the firm. All of these sub-projects offer great exposure to linear products and working with the business. Technical & System Performance Calibration C# Mastery (threading, memory management, and concurrency) High-Availability (active-active, hot-hot, zero-downtime distributed systems) Messaging experience (Solace or similar like Kafka/RabbitMQ) Backend focus with UI-awareness for BFF interaction Must Have C# Real time data/streaming API design experience Server side development experience (threading, memory management, performance) Desirable K8S AI/LLM experience (e.g. Claude, Codex, Agents and Agentic flow) Modernization & Domain Expertise Legacy code analysis (ability to dissect existing C++ systems) Financial domain knowledge (Fixed Income, bond curves, capital markets) Evaluating Ownership Mindset (No BA, No QA) Direct business engagement and requirement gathering Full ownership of testing (TDD, automated integration, benchmarking) Production support and L3 rotation engagement Culture & Distributed Team Dynamics Rigorous code reviews and craftsmanship (avoiding AI slop) Collaboration across distributed teams (14 people, 4 cities) Sub-projects & Responsibilities Permissions management Controls for marking and spreading Delegation of controls/group management Providing different levels of control from instrument level, book, sector Administration functions, auditability, and security of prime concern Pricing Service (Backend For Frontend) Support Bond Curve configuration screens (add constituents to the bond curves) Multitude of functions to support UI interaction for pricing Pricing blotter support Adapt messages to proprietary Pricing Engine format sent and received over Solace API design to be flexible - reuse where possible for curve construction for Rates, FX, and other problem domains About Barclays Barclays is a British universal bank. It is diversified by business, by different types of customers and clients, and by geography. Barclays businesses include consumer banking and payments operations around the world, as well as a top-tier, full service, global corporate and investment bank, all of which are supported by its service company which provides technology, operations and functional services across the Group. Values Everything Barclays does is shaped by its five values of Respect, Integrity, Service, Excellence and Stewardship. The Barclays values inform the foundations of its relationships with customers and clients, but they also shape how Barclays measures and rewards the performance of colleagues. Simply put, success is not just about what you achieve, but about how you achieve it. Diversity Barclays aims to foster a culture where individuals of all backgrounds feel confident in bringing their whole selves to work, feel included and their talents are nurtured, empowering them to contribute fully to Barclays vision and goals. Hybrid Working Barclays is currently in the early stages of implementing a hybrid working environment, which means that many colleagues spend part of their working hours at home and part in the office, depending on the nature of the role they are in. Barclays is flexible on how this works and it may continue to change and evolve. Depending on your team, typically this means that colleagues spend a minimum of between 20% to 60% of their time in the office, which could be over a week, a month or a quarter. However, some colleagues may choose to spend more time in the office over a typical period than their role type requires. Barclays also has a flexible working process where, subject to business needs, all colleagues globally are able to request work patterns to reflect their personal circumstances Your Benefits As a contract employee of Randstad Sourceright, you'll receive a wide range of financial and personal benefits. There's enrolment in a pension plan (after 12 weeks on assignment) and holiday pay. You'll also get 24/7 access to an Employee Assistance Programme, designed to help you deal with any problems that could be affecting your home or work life. Plus, there's discounts at heaps of high street shops, restaurants and entertainment - from Asda to Zizzi Italian restaurants.
Senior Software Engineer, Mobile Cloud - Manchester, United Kingdom Teamwork makes the stream work. Roku is changing how the world watches TV Roku is the TV streaming platform in the U.S., Canada, and Mexico, and we've set our sights on powering every television in the world. Roku pioneered streaming to the TV. Our mission is to be the TV streaming platform that connects the entire TV ecosystem. We connect consumers to the content they love, enable content publishers to build and monetize large audiences, and provide advertisers unique capabilities to engage consumers. From your first day at Roku, you'll make a valuable - and valued - contribution. We're a fast-growing public company where no one is a bystander. We offer you the opportunity to delight millions of TV streamers around the world while gaining meaningful experience across a variety of disciplines. About The Role Millions of people around the globe rely on our products every day because they "just work," seamlessly integrating into users' lives. Achieving that intuitive user experience isn't accidental-it's crafted by dedicated teams committed to simplicity and clarity. We're seeking a Senior Software Engineer (Backend) who excels at building scalable, reliable services. Our Roku Mobile Backend team designs and implements robust backend services powering our mobile apps, ensuring optimal performance, low latency, and seamless scalability. If you're passionate about backend engineering and thrive on delivering innovative mobile-cloud solutions, we'd love for you to join us. We collaborate closely with client-side engineers, other backend teams, and product management, iterating rapidly-from prototypes and A/B tests through to global releases. About The Team You will be joining a talented, high-performant backend team with a history of delivering quality products. We are looking for someone who can help us keep up this pace and continue delivering high-quality services as we grow. What You'll Do Design and develop scalable, high-performance backend services powering Roku mobile apps. Build and maintain robust APIs and microservices integrating seamlessly with mobile clients and cloud infrastructure. Develop and optimize a highly efficient auto-scaling platform utilizing Docker containers and Kubernetes orchestration. Ensure reliability and uptime of backend systems through comprehensive monitoring, testing, and automation. Troubleshoot and resolve complex technical challenges within production environments swiftly and effectively. Continuously assess and implement emerging technologies to boost system performance and developer productivity. Collaborate cross-functionally with product, design, frontend, and other backend teams, driving seamless integration, consistency, and exceptional user experiences. Expertise of backend software engineering Bachelor's or master's degree in computer science, engineering, or related field (or equivalent experience). Strong proficiency in backend languages like Java or Python. Proficiency in using AI tools (e.g., GitHub Copilot, ChatGPT) and experience with prompt engineering Demonstrable experience designing, building, and maintaining RESTful APIs, utilizing HTTPS, JSON, and WebSocket. Hands-on expertise developing and operating large-scale cloud services using Docker and Kubernetes. Proven capability in writing and maintaining comprehensive automated unit and integration tests. Deep understanding of distributed systems, microservices architecture, and database technologies. Familiarity with CI/CD pipelines, Test-Driven Development (TDD), and automation frameworks. Skilled in production system monitoring, troubleshooting, and issue resolution. Exceptional problem-solving skills focused on delivering efficient, practical solutions. Strong communication abilities, adept at working effectively with both technical and non-technical stakeholders. A proactive and driven mindset, capable of independently managing tasks from inception to completion. Ability to thrive in a dynamic, fast-paced environment, adeptly managing shifting priorities. Roku is committed to offering a diverse range of benefits as part of our compensation package to support our employees and their families. Our comprehensive benefits include global access to mental health and financial wellness support and resources. Local benefits include statutory and voluntary benefits which may include healthcare (medical, dental, and vision), life, accident, disability, commuter, and retirement options (401(k)/pension). Our employees can take time off work for vacation and other personal reasons to balance their evolving work and life needs. It's important to note that not every benefit is available in all locations or for every role. For details specific to your location, please consult with your recruiter. The Roku Culture Roku is a great place for people who want to work in a fast-paced environment where everyone is focused on the company's success rather than their own. We try to surround ourselves with people who are great at their jobs, who are easy to work with, and who keep their egos in check. We appreciate a sense of humor. We believe a fewer number of very talented folks can do more for less cost than a larger number of less talented teams. We're independent thinkers with big ideas who act boldly, move fast and accomplish extraordinary things through collaboration and trust. In short, at Roku you'll be part of a company that's changing how the world watches TV. We have a unique culture that we are proud of. We think of ourselves primarily as problem-solvers, which itself is a two-part idea. We come up with the solution, but the solution isn't real until it is built and delivered to the customer. That penchant for action gives us a pragmatic approach to innovation, one that has served us well since 2002. By providing your information, you acknowledge that you have read our Applicant Privacy Notice and authorize Roku to process your data subject to those terms.
Aug 26, 2026
Full time
Senior Software Engineer, Mobile Cloud - Manchester, United Kingdom Teamwork makes the stream work. Roku is changing how the world watches TV Roku is the TV streaming platform in the U.S., Canada, and Mexico, and we've set our sights on powering every television in the world. Roku pioneered streaming to the TV. Our mission is to be the TV streaming platform that connects the entire TV ecosystem. We connect consumers to the content they love, enable content publishers to build and monetize large audiences, and provide advertisers unique capabilities to engage consumers. From your first day at Roku, you'll make a valuable - and valued - contribution. We're a fast-growing public company where no one is a bystander. We offer you the opportunity to delight millions of TV streamers around the world while gaining meaningful experience across a variety of disciplines. About The Role Millions of people around the globe rely on our products every day because they "just work," seamlessly integrating into users' lives. Achieving that intuitive user experience isn't accidental-it's crafted by dedicated teams committed to simplicity and clarity. We're seeking a Senior Software Engineer (Backend) who excels at building scalable, reliable services. Our Roku Mobile Backend team designs and implements robust backend services powering our mobile apps, ensuring optimal performance, low latency, and seamless scalability. If you're passionate about backend engineering and thrive on delivering innovative mobile-cloud solutions, we'd love for you to join us. We collaborate closely with client-side engineers, other backend teams, and product management, iterating rapidly-from prototypes and A/B tests through to global releases. About The Team You will be joining a talented, high-performant backend team with a history of delivering quality products. We are looking for someone who can help us keep up this pace and continue delivering high-quality services as we grow. What You'll Do Design and develop scalable, high-performance backend services powering Roku mobile apps. Build and maintain robust APIs and microservices integrating seamlessly with mobile clients and cloud infrastructure. Develop and optimize a highly efficient auto-scaling platform utilizing Docker containers and Kubernetes orchestration. Ensure reliability and uptime of backend systems through comprehensive monitoring, testing, and automation. Troubleshoot and resolve complex technical challenges within production environments swiftly and effectively. Continuously assess and implement emerging technologies to boost system performance and developer productivity. Collaborate cross-functionally with product, design, frontend, and other backend teams, driving seamless integration, consistency, and exceptional user experiences. Expertise of backend software engineering Bachelor's or master's degree in computer science, engineering, or related field (or equivalent experience). Strong proficiency in backend languages like Java or Python. Proficiency in using AI tools (e.g., GitHub Copilot, ChatGPT) and experience with prompt engineering Demonstrable experience designing, building, and maintaining RESTful APIs, utilizing HTTPS, JSON, and WebSocket. Hands-on expertise developing and operating large-scale cloud services using Docker and Kubernetes. Proven capability in writing and maintaining comprehensive automated unit and integration tests. Deep understanding of distributed systems, microservices architecture, and database technologies. Familiarity with CI/CD pipelines, Test-Driven Development (TDD), and automation frameworks. Skilled in production system monitoring, troubleshooting, and issue resolution. Exceptional problem-solving skills focused on delivering efficient, practical solutions. Strong communication abilities, adept at working effectively with both technical and non-technical stakeholders. A proactive and driven mindset, capable of independently managing tasks from inception to completion. Ability to thrive in a dynamic, fast-paced environment, adeptly managing shifting priorities. Roku is committed to offering a diverse range of benefits as part of our compensation package to support our employees and their families. Our comprehensive benefits include global access to mental health and financial wellness support and resources. Local benefits include statutory and voluntary benefits which may include healthcare (medical, dental, and vision), life, accident, disability, commuter, and retirement options (401(k)/pension). Our employees can take time off work for vacation and other personal reasons to balance their evolving work and life needs. It's important to note that not every benefit is available in all locations or for every role. For details specific to your location, please consult with your recruiter. The Roku Culture Roku is a great place for people who want to work in a fast-paced environment where everyone is focused on the company's success rather than their own. We try to surround ourselves with people who are great at their jobs, who are easy to work with, and who keep their egos in check. We appreciate a sense of humor. We believe a fewer number of very talented folks can do more for less cost than a larger number of less talented teams. We're independent thinkers with big ideas who act boldly, move fast and accomplish extraordinary things through collaboration and trust. In short, at Roku you'll be part of a company that's changing how the world watches TV. We have a unique culture that we are proud of. We think of ourselves primarily as problem-solvers, which itself is a two-part idea. We come up with the solution, but the solution isn't real until it is built and delivered to the customer. That penchant for action gives us a pragmatic approach to innovation, one that has served us well since 2002. By providing your information, you acknowledge that you have read our Applicant Privacy Notice and authorize Roku to process your data subject to those terms.
About the Role: Vercel is hiring a Head of Commercial sales, EMEA (excl. DACH) to lead and scale our Commercial sales team across EMEA (excl. DACH). This is a high-impact leadership role for someone who thrives in a fast-paced, high-velocity environment and knows how to build the systems, culture, and talent needed to consistently hit and exceed revenue targets in the mid-market and growth segment. Commercial is one of Vercel's most important growth levers in EMEA - it's where we convert developer love and self-service momentum into contracted, expanding revenue with scaling tech companies and digital-native businesses. This leader will own that motion end-to-end: hiring and developing a team of Commercial AEs, driving pipeline efficiency, and ensuring Vercel is well-positioned to win in a competitive and fast-moving market. You'll be based in London and work closely with Marketing, SDR leadership, Solutions Engineering, and Customer Success to build a repeatable, scalable commercial sales engine across the region. If you're based within a pre-determined commuting distance of one of our offices (SF, NY, London, or Berlin), the role includes in-office anchor days on Monday, Tuesday, and Friday. If you're located beyond that distance, the role is fully remote. What You Will Do: Own the EMEA Commercial sales number - pipeline, forecasting, and revenue attainment across the mid-market and growth segment Hire, onboard, and develop a team of Commercial AEs, building a culture of high-activity, sharp qualification, and consistent execution Drive a high-velocity sales motion with shorter cycles, strong outbound discipline, and efficient deal management Coach AEs on territory planning, prospecting strategies, and how to sell to technical and business stakeholders at scaling companies Partner with Marketing and SDR leadership to build and convert pipeline across EMEA - inbound and outbound Develop and iterate on Commercial-specific messaging and positioning that resonates with engineering leaders and CTOs at growth-stage companies Accurately forecast and report on team activity and revenue to EMEA sales leadership Build scalable processes, playbooks, and onboarding frameworks that let the team ramp quickly and perform consistently Collaborate cross-functionally with CS, Product, and Legal to ensure smooth handoffs and strong retention in the commercial segment Identify expansion opportunities within the existing commercial customer base and coach AEs to grow accounts over time Represent Vercel at EMEA industry events, developer conferences, and customer-facing engagements About You: 3+ years of sales leadership experience in a SaaS or technical software environment, with a strong track record managing high-velocity commercial or mid-market teams Proven ability to hire, ramp, and develop commercial AEs in a competitive market Deep understanding of commercial sales motions - you know how to run a tight pipeline, coach on qualification, and keep deal velocity high without sacrificing quality Experience selling into engineering, product, or technical leadership at scaling or growth-stage companies Data-driven approach to running a team - you use metrics to identify coaching opportunities, forecast accurately, and iterate on process Hands-on leader who is comfortable being in deals, on calls, and in the weeds when your team needs it Fluency in English required; additional European language skills (French, German, Italian, Spanish, and Arabic) are a strong plus given the EMEA scope Familiarity with developer tooling, frontend infrastructure, or cloud platforms is a significant advantage Familiarity with Vercel, Next.js, or the modern web development ecosystem is a plus Based in London Benefits: Competitive compensation package, including equity Inclusive Healthcare Package Learn and Grow - we provide mentorship and send you to events that help you build your network and skills Flexible Time Off We will provide you the gear you need to do your role, and a WFH budget for you to outfit your space as needed The London base pay range for this role is 300,000 - 330,000 OTE (Euro). Vercel is committed to fostering and empowering an inclusive community within our organization. We do not discriminate on the basis of race, religion, color, gender expression or identity, sexual orientation, national origin, citizenship, age, marital status, veteran status, disability status, or any other characteristic protected by law. Vercel encourages everyone to apply for our available positions, even if they don't necessarily check every box on the job description.
Aug 26, 2026
Full time
About the Role: Vercel is hiring a Head of Commercial sales, EMEA (excl. DACH) to lead and scale our Commercial sales team across EMEA (excl. DACH). This is a high-impact leadership role for someone who thrives in a fast-paced, high-velocity environment and knows how to build the systems, culture, and talent needed to consistently hit and exceed revenue targets in the mid-market and growth segment. Commercial is one of Vercel's most important growth levers in EMEA - it's where we convert developer love and self-service momentum into contracted, expanding revenue with scaling tech companies and digital-native businesses. This leader will own that motion end-to-end: hiring and developing a team of Commercial AEs, driving pipeline efficiency, and ensuring Vercel is well-positioned to win in a competitive and fast-moving market. You'll be based in London and work closely with Marketing, SDR leadership, Solutions Engineering, and Customer Success to build a repeatable, scalable commercial sales engine across the region. If you're based within a pre-determined commuting distance of one of our offices (SF, NY, London, or Berlin), the role includes in-office anchor days on Monday, Tuesday, and Friday. If you're located beyond that distance, the role is fully remote. What You Will Do: Own the EMEA Commercial sales number - pipeline, forecasting, and revenue attainment across the mid-market and growth segment Hire, onboard, and develop a team of Commercial AEs, building a culture of high-activity, sharp qualification, and consistent execution Drive a high-velocity sales motion with shorter cycles, strong outbound discipline, and efficient deal management Coach AEs on territory planning, prospecting strategies, and how to sell to technical and business stakeholders at scaling companies Partner with Marketing and SDR leadership to build and convert pipeline across EMEA - inbound and outbound Develop and iterate on Commercial-specific messaging and positioning that resonates with engineering leaders and CTOs at growth-stage companies Accurately forecast and report on team activity and revenue to EMEA sales leadership Build scalable processes, playbooks, and onboarding frameworks that let the team ramp quickly and perform consistently Collaborate cross-functionally with CS, Product, and Legal to ensure smooth handoffs and strong retention in the commercial segment Identify expansion opportunities within the existing commercial customer base and coach AEs to grow accounts over time Represent Vercel at EMEA industry events, developer conferences, and customer-facing engagements About You: 3+ years of sales leadership experience in a SaaS or technical software environment, with a strong track record managing high-velocity commercial or mid-market teams Proven ability to hire, ramp, and develop commercial AEs in a competitive market Deep understanding of commercial sales motions - you know how to run a tight pipeline, coach on qualification, and keep deal velocity high without sacrificing quality Experience selling into engineering, product, or technical leadership at scaling or growth-stage companies Data-driven approach to running a team - you use metrics to identify coaching opportunities, forecast accurately, and iterate on process Hands-on leader who is comfortable being in deals, on calls, and in the weeds when your team needs it Fluency in English required; additional European language skills (French, German, Italian, Spanish, and Arabic) are a strong plus given the EMEA scope Familiarity with developer tooling, frontend infrastructure, or cloud platforms is a significant advantage Familiarity with Vercel, Next.js, or the modern web development ecosystem is a plus Based in London Benefits: Competitive compensation package, including equity Inclusive Healthcare Package Learn and Grow - we provide mentorship and send you to events that help you build your network and skills Flexible Time Off We will provide you the gear you need to do your role, and a WFH budget for you to outfit your space as needed The London base pay range for this role is 300,000 - 330,000 OTE (Euro). Vercel is committed to fostering and empowering an inclusive community within our organization. We do not discriminate on the basis of race, religion, color, gender expression or identity, sexual orientation, national origin, citizenship, age, marital status, veteran status, disability status, or any other characteristic protected by law. Vercel encourages everyone to apply for our available positions, even if they don't necessarily check every box on the job description.
Front End Developer Rate: £420 - £476 Clearance Required: BPSS Duration: 6 months Location: Telford - 2 days onsite per week IR35 Status: umbrella Job Description: Minimum requirements Strong frontend fundamentals: semantic HTML, modern CSS and JavaScript, including responsive and accessible development click apply for full job details
Aug 25, 2026
Contractor
Front End Developer Rate: £420 - £476 Clearance Required: BPSS Duration: 6 months Location: Telford - 2 days onsite per week IR35 Status: umbrella Job Description: Minimum requirements Strong frontend fundamentals: semantic HTML, modern CSS and JavaScript, including responsive and accessible development click apply for full job details
Location: Kettering/Hybrid Do you enjoy building software solutions using modern .NET technologies that solve real-world problems and make a visible impact? This is a greenfield opportunity, giving you the chance to shape a modern .NET-based platform from the ground up, with React supporting the front end. At Logistex, your code doesn t just sit behind a screen, it powers warehouse operations, drives automation systems, and supports some of the UK s leading logistics and retail brands. If you re the kind of developer who enjoys building robust backend systems in .NET, tackling complex challenges, and seeing your work used in real environments this role is for you. Why join us as Senior Full Stack Developer? You ll play a key role in building a modern .NET-driven platform with React and PostgreSQL You ll work on a greenfield program with real influence on technical direction You ll collaborate with engineers, architects, and operational teams Your applications support real-world operations Key Responsibilities as Senior Full Stack Developer Designing and developing modern web applications with a strong focus on .NET (C#) Building scalable backend services and RESTful APIs Supporting frontend development using React (TypeScript beneficial) Contributing to architecture and technical design decisions Writing clean, maintainable, and well-tested code Working within Agile teams to deliver high-quality software Continuously improving systems, tools, and development practices About You: Strong commercial experience with C# and .NET (core focus) Experience building frontends with React (ideally TypeScript) Strong understanding of REST APIs and backend architecture Experience with relational databases (ideally PostgreSQL) Solid software engineering fundamentals and best practices Ability to write clean, scalable, and maintainable code Experience working in Agile environments What are you waiting for, make your application today
Aug 25, 2026
Full time
Location: Kettering/Hybrid Do you enjoy building software solutions using modern .NET technologies that solve real-world problems and make a visible impact? This is a greenfield opportunity, giving you the chance to shape a modern .NET-based platform from the ground up, with React supporting the front end. At Logistex, your code doesn t just sit behind a screen, it powers warehouse operations, drives automation systems, and supports some of the UK s leading logistics and retail brands. If you re the kind of developer who enjoys building robust backend systems in .NET, tackling complex challenges, and seeing your work used in real environments this role is for you. Why join us as Senior Full Stack Developer? You ll play a key role in building a modern .NET-driven platform with React and PostgreSQL You ll work on a greenfield program with real influence on technical direction You ll collaborate with engineers, architects, and operational teams Your applications support real-world operations Key Responsibilities as Senior Full Stack Developer Designing and developing modern web applications with a strong focus on .NET (C#) Building scalable backend services and RESTful APIs Supporting frontend development using React (TypeScript beneficial) Contributing to architecture and technical design decisions Writing clean, maintainable, and well-tested code Working within Agile teams to deliver high-quality software Continuously improving systems, tools, and development practices About You: Strong commercial experience with C# and .NET (core focus) Experience building frontends with React (ideally TypeScript) Strong understanding of REST APIs and backend architecture Experience with relational databases (ideally PostgreSQL) Solid software engineering fundamentals and best practices Ability to write clean, scalable, and maintainable code Experience working in Agile environments What are you waiting for, make your application today
Software Developer (C# / .NET) London-based Hybrid Up to £75k + benefits Tech stack: C#, .Net, Azure, APIs, Azure, JavaScript, 365, SQL I'm currently hiring on behalf of a client in the PR space for a Software Developer with strong experience in C# and .NET to join a small, collaborative technology team. This is a hands-on role suited to a software developer who enjoys being a doer, can work independently, and is comfortable taking ownership across backend development and internal business applications. What we're looking for: Strong C# / .NET development experience Experience working with SQL / databases Experience withAPI integrations Exposure to Azure or AWS Experience with JavaScript / frontend technologies is a plus Experience with business applications such as SharePoint or Microsoft 365 Exposure to Microsoft Dynamics and/or Power BI is desirable Comfortable working in a small team and taking ownership of your work Strong problem-solving skills and a practical, hands-on approach This is a great opportunity for a software developer with solid C#, .Net skills, who wants to work in a small team with plenty of autonomy.
Aug 24, 2026
Full time
Software Developer (C# / .NET) London-based Hybrid Up to £75k + benefits Tech stack: C#, .Net, Azure, APIs, Azure, JavaScript, 365, SQL I'm currently hiring on behalf of a client in the PR space for a Software Developer with strong experience in C# and .NET to join a small, collaborative technology team. This is a hands-on role suited to a software developer who enjoys being a doer, can work independently, and is comfortable taking ownership across backend development and internal business applications. What we're looking for: Strong C# / .NET development experience Experience working with SQL / databases Experience withAPI integrations Exposure to Azure or AWS Experience with JavaScript / frontend technologies is a plus Experience with business applications such as SharePoint or Microsoft 365 Exposure to Microsoft Dynamics and/or Power BI is desirable Comfortable working in a small team and taking ownership of your work Strong problem-solving skills and a practical, hands-on approach This is a great opportunity for a software developer with solid C#, .Net skills, who wants to work in a small team with plenty of autonomy.
The opportunity Role: Digital Developer (Frontend) Project: Public sector / government digital services Location: Exeter - typically 1-2 days per week on site Duration: Initial 6-month contract Rate: Around £600/day (Umbrella) IR35: In scope Security: SC cleared or SC eligible (for a government agency) What you'll be working on Developing responsive, accessible UIs using Next.js, React, TypeScript Collaborating with design and product teams to create intuitive, user-centred experiences Building frontends that integrate with internal APIs and search indexes Taking part in code reviews, testing, debugging and continuous improvements Maintaining and enhancing existing applications, diagnosing and resolving issues Contributing to technical documentation and helping shape project requirements Implementing and working with CI/CD pipelines and automated testing Tech stack & skills Strong experience as a Frontend Developer Solid knowledge of HTML, CSS, JavaScript plus React and Next.js Experience with TypeScript and modern frontend tooling Familiarity with Elasticsearch and SQL-like databases Good understanding of Git and collaborative workflows Exposure to cloud platforms (Azure and/or AWS) and deployment strategies Comfortable working in an Agile , cross-functional team Nice to have Experience with PyGeoAPI or GIS-related work Experience with Jira and Confluence This is a good fit if you like owning the full lifecycle of frontend features, care about UX/UI, and want to contribute to highly visible services in the public sector .
Aug 24, 2026
Full time
The opportunity Role: Digital Developer (Frontend) Project: Public sector / government digital services Location: Exeter - typically 1-2 days per week on site Duration: Initial 6-month contract Rate: Around £600/day (Umbrella) IR35: In scope Security: SC cleared or SC eligible (for a government agency) What you'll be working on Developing responsive, accessible UIs using Next.js, React, TypeScript Collaborating with design and product teams to create intuitive, user-centred experiences Building frontends that integrate with internal APIs and search indexes Taking part in code reviews, testing, debugging and continuous improvements Maintaining and enhancing existing applications, diagnosing and resolving issues Contributing to technical documentation and helping shape project requirements Implementing and working with CI/CD pipelines and automated testing Tech stack & skills Strong experience as a Frontend Developer Solid knowledge of HTML, CSS, JavaScript plus React and Next.js Experience with TypeScript and modern frontend tooling Familiarity with Elasticsearch and SQL-like databases Good understanding of Git and collaborative workflows Exposure to cloud platforms (Azure and/or AWS) and deployment strategies Comfortable working in an Agile , cross-functional team Nice to have Experience with PyGeoAPI or GIS-related work Experience with Jira and Confluence This is a good fit if you like owning the full lifecycle of frontend features, care about UX/UI, and want to contribute to highly visible services in the public sector .
Front End Developer Rate: 420 - 476 Clearance Required: BPSS Duration: 6 months Location: Telford - 2 days onsite per week IR35 Status: umbrella Job Description: Minimum requirements Strong frontend fundamentals: semantic HTML, modern CSS and JavaScript, including responsive and accessible development. Commercial experience with React and TypeScript. Experience with a modern full-stack React framework, specifically Remix or React Router v7+. Practical server-side rendering experience, including loaders/actions, forms, routing, error handling and server-side session patterns. A clear understanding of progressive enhancement and the ability to build core journeys that do not depend entirely on client-side JavaScript. Experience using Material UI to build reusable, accessible components. Experience writing automated tests, including unit/integration tests and Playwright end-to-end tests. Comfortable integrating with REST APIs and working with Git-based development and code-review processes. Accessibility to WCAG 2.2 AA, including semantic HTML, keyboard navigation, screen-reader testing and automated accessibility checks. Ideal additional experience React Router framework mode, including data APIs, nested routes, form actions and streaming SSR. Node.js and Express, particularly where the frontend includes a server or backend-for-frontend layer. Design-system and component-library development using custom design patterns, encompassing MUI, Storybook and Figma. Runtime validation and contract-first API integration, for example Zod and OpenAPI-generated types. Authentication, authorisation and secure session management using OAuth 2.0/OpenID Connect. CI/CD, dependency management and frontend security practices. Experience working in regulated or government environments and collaborating closely with various stakeholders, including UX, API, test and platform teams. If you receive suspicious outreach claiming to be from us, please contact us via the ManpowerGroup website.
Aug 24, 2026
Contractor
Front End Developer Rate: 420 - 476 Clearance Required: BPSS Duration: 6 months Location: Telford - 2 days onsite per week IR35 Status: umbrella Job Description: Minimum requirements Strong frontend fundamentals: semantic HTML, modern CSS and JavaScript, including responsive and accessible development. Commercial experience with React and TypeScript. Experience with a modern full-stack React framework, specifically Remix or React Router v7+. Practical server-side rendering experience, including loaders/actions, forms, routing, error handling and server-side session patterns. A clear understanding of progressive enhancement and the ability to build core journeys that do not depend entirely on client-side JavaScript. Experience using Material UI to build reusable, accessible components. Experience writing automated tests, including unit/integration tests and Playwright end-to-end tests. Comfortable integrating with REST APIs and working with Git-based development and code-review processes. Accessibility to WCAG 2.2 AA, including semantic HTML, keyboard navigation, screen-reader testing and automated accessibility checks. Ideal additional experience React Router framework mode, including data APIs, nested routes, form actions and streaming SSR. Node.js and Express, particularly where the frontend includes a server or backend-for-frontend layer. Design-system and component-library development using custom design patterns, encompassing MUI, Storybook and Figma. Runtime validation and contract-first API integration, for example Zod and OpenAPI-generated types. Authentication, authorisation and secure session management using OAuth 2.0/OpenID Connect. CI/CD, dependency management and frontend security practices. Experience working in regulated or government environments and collaborating closely with various stakeholders, including UX, API, test and platform teams. If you receive suspicious outreach claiming to be from us, please contact us via the ManpowerGroup website.
Avanti Recruitment is working with a software company based in Central London that is a leading global supplier of financial reporting software. The company is now looking for a Graduate or Junior Developer. The company has been running for over 20 years and their software has helped to redefine the financial reporting landscape. They are working with some of the world's largest regulators and enterprise organisations such as HMRC, the Bank of England, and Barclays. They currently work across 26 different countries, and in the UK alone, their technology has processed over 2 trillion in UK taxes. You will be working on a Java Microservices-based platform which will be delivering applications to a range of customers around the world. You will be working with .NET as the main language, however you will also use Java, TypeScript and React for the front-end development and built on Kubernetes. Skills required: Strong .NET experience 2:1 or above in Computer Science degree Desirable: Kubernetes Java TypeScript / Frontend experience Commercial experience within the financial sector Ideally have 1-3 years of commercial experience Interview process: 30-minute video call, typically includes a technical challenge in addition to a CV discussion 60-90 minute interview (face to face preferable), this will consist of a programming exercise on a whiteboard and a broader discussion of your aspirations and ambitions This role will require you to work in the office 3 days per week. The salary on offer for this position is up to 45,000 + discretionary bonus. If you would be interested in finding out more then click Apply Now!
Aug 24, 2026
Full time
Avanti Recruitment is working with a software company based in Central London that is a leading global supplier of financial reporting software. The company is now looking for a Graduate or Junior Developer. The company has been running for over 20 years and their software has helped to redefine the financial reporting landscape. They are working with some of the world's largest regulators and enterprise organisations such as HMRC, the Bank of England, and Barclays. They currently work across 26 different countries, and in the UK alone, their technology has processed over 2 trillion in UK taxes. You will be working on a Java Microservices-based platform which will be delivering applications to a range of customers around the world. You will be working with .NET as the main language, however you will also use Java, TypeScript and React for the front-end development and built on Kubernetes. Skills required: Strong .NET experience 2:1 or above in Computer Science degree Desirable: Kubernetes Java TypeScript / Frontend experience Commercial experience within the financial sector Ideally have 1-3 years of commercial experience Interview process: 30-minute video call, typically includes a technical challenge in addition to a CV discussion 60-90 minute interview (face to face preferable), this will consist of a programming exercise on a whiteboard and a broader discussion of your aspirations and ambitions This role will require you to work in the office 3 days per week. The salary on offer for this position is up to 45,000 + discretionary bonus. If you would be interested in finding out more then click Apply Now!
Avanti Recruitment is working with a software company based in Central London that is a leading global supplier of financial reporting software. The company is now looking for a Graduate or Junior Developer. The company has been running for over 20 years and their software has helped to redefine the financial reporting landscape. They are working with some of the world's largest regulators and enterprise organisations such as HMRC, the Bank of England, and Barclays. They currently work across 26 different countries, and in the UK alone, their technology has processed over 2 trillion in UK taxes. You will be working on a Java Microservices-based platform which will be delivering applications to a range of customers around the world. You will be working with .NET as the main language, however you will also use Java, TypeScript and React for the front-end development and built on Kubernetes. Skills required: Strong .NET experience 2:1 or above in Computer Science degree Desirable: Kubernetes Java TypeScript / Frontend experience Commercial experience within the financial sector Ideally have 1-3 years of commercial experience Interview process: 30-minute video call, typically includes a technical challenge in addition to a CV discussion 60-90 minute interview (face to face preferable), this will consist of a programming exercise on a whiteboard and a broader discussion of your aspirations and ambitions This role will require you to work in the office 3 days per week. The salary on offer for this position is up to 45,000 + discretionary bonus. If you would be interested in finding out more then click Apply Now!
Aug 23, 2026
Full time
Avanti Recruitment is working with a software company based in Central London that is a leading global supplier of financial reporting software. The company is now looking for a Graduate or Junior Developer. The company has been running for over 20 years and their software has helped to redefine the financial reporting landscape. They are working with some of the world's largest regulators and enterprise organisations such as HMRC, the Bank of England, and Barclays. They currently work across 26 different countries, and in the UK alone, their technology has processed over 2 trillion in UK taxes. You will be working on a Java Microservices-based platform which will be delivering applications to a range of customers around the world. You will be working with .NET as the main language, however you will also use Java, TypeScript and React for the front-end development and built on Kubernetes. Skills required: Strong .NET experience 2:1 or above in Computer Science degree Desirable: Kubernetes Java TypeScript / Frontend experience Commercial experience within the financial sector Ideally have 1-3 years of commercial experience Interview process: 30-minute video call, typically includes a technical challenge in addition to a CV discussion 60-90 minute interview (face to face preferable), this will consist of a programming exercise on a whiteboard and a broader discussion of your aspirations and ambitions This role will require you to work in the office 3 days per week. The salary on offer for this position is up to 45,000 + discretionary bonus. If you would be interested in finding out more then click Apply Now!
Senior Developer C# .Net, Azure cloud-native, Azure AI Foundry, SQL Hybrid - Central / West London & WFH Circa £70,000 - £90,000 + Bonus and good benefits An exciting opportunity for a Senior .Net Developer / Senior Software Engineer to combine their strong Microsoft .Net development experience with modern AI technology by playing a key role building up our clients AI driven capabilities. It's a role for a keen and confident Developer / Software Engineer that enjoys autonomy and embracing new technologies working in fast paced delivery focussed environments. It would best suit those used to working for small to medium sized businesses (SME's) and is open to those already operating at a Senior level as well as those looking to take a step-up. Our client recently brought development in-house and are building a team that already includes two highly capable Mid-Level Full-stack Engineers to migrate a complex monolithic booking system to a new .Net 10 Azure-native microservices solution. Reporting directly into the CTO, the Senior Developer will be hands-on as well as making pragmatic architectural and engineering decisions that keep delivery front and centre including building up their AI offering. To be considered for this exciting greenfield opportunity you'll need the following skills and experience: 6+ years commercial experience as a Developer or Software Engineer predominantly with Microsoft development tools (experience as a Senior or Lead or Mentor etc is beneficial but not essential) Strong backend development experience Strong C# / .NET experience from 8 onwards Strong Azure cloud-native development experience - AKS / Container Apps, Service Bus, API Management, Azure DevOps etc Good knowledge and experience with Azure AI Foundry Strong SQL / SQL Server experience schema design, EF Core migrations, query performance tuning etc Good knowledge of software architecture, scalability and best practice Experience with Microservices patterns Experience with Frontend Development - React / TypeScript / Angular etc Strong team player and comfortable engaging with business stakeholders and 3rd party partners. This role is perfect for those who thrive in small, flat-structured, collaborative team environments where your contribution makes a real difference. Salary will reflect experience and likely to be in the £70,000 - £90,000 range although higher would be considered. The client can also offers working from home on a Monday and Friday. For further information, please send your CV to Wayne Young at Young's Employment Services Ltd. YES are operating as both a recruitment Agency and Recruitment Business.
Aug 23, 2026
Full time
Senior Developer C# .Net, Azure cloud-native, Azure AI Foundry, SQL Hybrid - Central / West London & WFH Circa £70,000 - £90,000 + Bonus and good benefits An exciting opportunity for a Senior .Net Developer / Senior Software Engineer to combine their strong Microsoft .Net development experience with modern AI technology by playing a key role building up our clients AI driven capabilities. It's a role for a keen and confident Developer / Software Engineer that enjoys autonomy and embracing new technologies working in fast paced delivery focussed environments. It would best suit those used to working for small to medium sized businesses (SME's) and is open to those already operating at a Senior level as well as those looking to take a step-up. Our client recently brought development in-house and are building a team that already includes two highly capable Mid-Level Full-stack Engineers to migrate a complex monolithic booking system to a new .Net 10 Azure-native microservices solution. Reporting directly into the CTO, the Senior Developer will be hands-on as well as making pragmatic architectural and engineering decisions that keep delivery front and centre including building up their AI offering. To be considered for this exciting greenfield opportunity you'll need the following skills and experience: 6+ years commercial experience as a Developer or Software Engineer predominantly with Microsoft development tools (experience as a Senior or Lead or Mentor etc is beneficial but not essential) Strong backend development experience Strong C# / .NET experience from 8 onwards Strong Azure cloud-native development experience - AKS / Container Apps, Service Bus, API Management, Azure DevOps etc Good knowledge and experience with Azure AI Foundry Strong SQL / SQL Server experience schema design, EF Core migrations, query performance tuning etc Good knowledge of software architecture, scalability and best practice Experience with Microservices patterns Experience with Frontend Development - React / TypeScript / Angular etc Strong team player and comfortable engaging with business stakeholders and 3rd party partners. This role is perfect for those who thrive in small, flat-structured, collaborative team environments where your contribution makes a real difference. Salary will reflect experience and likely to be in the £70,000 - £90,000 range although higher would be considered. The client can also offers working from home on a Monday and Friday. For further information, please send your CV to Wayne Young at Young's Employment Services Ltd. YES are operating as both a recruitment Agency and Recruitment Business.
Senior Full Stack Developer Reporting to: Engineering Manager Office Environment: Hybrid (minimum two days per week) Type: Full time, permanent Join Our Mission Skip the queue. Shape the future. See real impact. At QuantSpark, we're transforming how data and AI serve society. We combine the analytical discipline of strategy consulting with the pace and ownership of a scale-up. That means you'll work directly on the problems that matter most-whether combating economic crime, modernising government services, or accelerating commercial growth for FTSE 100 companies. Here, you'll compress 5-10 years of traditional career progression into 2-3 years. From day one, you'll lead end-to-end projects, access leadership directly (including the CEO), and build cross-industry expertise that usually takes a decade to gain. We don't just develop - we build, own, and scale solutions that shape the organisations we work with and have meaningful societal impact. Our Client Portfolio We partner with forward-thinking organisations across sectors: Private Equity & Financial Services: Portfolio analytics, AI-powered value creation, and risk management tools for global investment and wealth firms. Retail & Consumer: Pricing optimisation, inventory efficiency, and personalised engagement for major UK retailers and brands. Asset Management: Advanced investment platforms and automated risk management for asset managers. Public Sector: Trusted by multiple UK government departments for fraud analytics, predictive maintenance, and supply chain optimisation. SaaS & Manufacturing: Sector-spanning technology transformation for SaaS innovators and manufacturers. The Role You'll design, build, and scale web applications across backend and frontend, owning projects from ideation through to production - architecture, CI/CD, cloud infrastructure, monitoring, the lot. We're a small team that punches well above its weight. Client feedback is outstanding, and every engineer here has a visible impact. Day to day, you'll: Architect and deliver scalable, secure software for commercial clients across multiple sectors. Assess technical trade-offs and guide design decisions across projects. Write, review, and own high-quality code - primarily Python (Flask, FastAPI, or Django) and JavaScript/TypeScript (React preferred). Build and maintain RESTful APIs and modern frontends. Work directly with clients - communicating clearly, understanding the why behind what you're building. Feed into new client proposals and help improve internal engineering processes. Mentor junior developers through code reviews, pairing, and knowledge-sharing. Use AI coding agents to accelerate delivery whilst maintaining correctness and security. AI Engineering (Required) Hands-on experience with AI coding agents in day-to-day work - prompting, iterating, reviewing generated code, validating outputs. Working understanding of LLM fundamentals and limitations (hallucinations, context windows, evaluation). Familiarity with prompting patterns, tool use, and concepts like RAG and embeddings. Awareness of safety and privacy concerns when using AI tools (secrets, PII, licensing). Ability to integrate AI into your workflow without compromising code quality. What We're Looking For 5+ years' experience as a full-stack engineer. Strong track record delivering enterprise-grade web applications and APIs. Confident across Python backend frameworks and modern frontend (React/TypeScript). Comfortable owning the full product lifecycle. Proactive, accountable, and effective in small, fast-moving teams. Clear communicator across technical and non-technical audiences. Keen to broaden into a generalist whilst deepening your core strengths - not just staying in one lane. What We Offer Tech ownership and autonomy from day one. High-impact work - you'll see real results within months, not years. Room to innovate, not just maintain. A small, collaborative team that owns problems end to end and learns fast. Clients ambitious enough to rethink how they use data and technology. A clear path to leading technical programmes and shaping strategy - growth here is earned, not queued. Perks & Benefits £6,000 annual training & conference budget to stay at the cutting edge Up to 6% matched pension for long-term financial security Comprehensive private healthcare via Vitality EMI share options scheme - own a piece of the growth you help create Work from anywhere in the world for up to 1 month/year 25 days holiday + buy/sell up to 5 additional days Cycle-to-work scheme for sustainable commuting Central London office stocked with refreshments, socials, and vibrant atmosphere Exclusive discounts on retail, travel, tech & fitness memberships Access to cutting-edge tools, platforms, and regular tech talks & innovation time Equal Opportunities We're building a team that benefits from different perspectives, experiences, and ways of thinking. We know that great talent comes from all backgrounds, and we encourage applications from everyone who meets the role requirements, regardless of age, disability, gender identity, race, religion, sexuality, or any other characteristic. If you're unsure whether you're a perfect fit but believe you can do the job well, we'd still like to hear from you. We hire based on your skills, potential, and ability to contribute to our team, and we're committed to a fair and objective selection process for all candidates.
Aug 23, 2026
Full time
Senior Full Stack Developer Reporting to: Engineering Manager Office Environment: Hybrid (minimum two days per week) Type: Full time, permanent Join Our Mission Skip the queue. Shape the future. See real impact. At QuantSpark, we're transforming how data and AI serve society. We combine the analytical discipline of strategy consulting with the pace and ownership of a scale-up. That means you'll work directly on the problems that matter most-whether combating economic crime, modernising government services, or accelerating commercial growth for FTSE 100 companies. Here, you'll compress 5-10 years of traditional career progression into 2-3 years. From day one, you'll lead end-to-end projects, access leadership directly (including the CEO), and build cross-industry expertise that usually takes a decade to gain. We don't just develop - we build, own, and scale solutions that shape the organisations we work with and have meaningful societal impact. Our Client Portfolio We partner with forward-thinking organisations across sectors: Private Equity & Financial Services: Portfolio analytics, AI-powered value creation, and risk management tools for global investment and wealth firms. Retail & Consumer: Pricing optimisation, inventory efficiency, and personalised engagement for major UK retailers and brands. Asset Management: Advanced investment platforms and automated risk management for asset managers. Public Sector: Trusted by multiple UK government departments for fraud analytics, predictive maintenance, and supply chain optimisation. SaaS & Manufacturing: Sector-spanning technology transformation for SaaS innovators and manufacturers. The Role You'll design, build, and scale web applications across backend and frontend, owning projects from ideation through to production - architecture, CI/CD, cloud infrastructure, monitoring, the lot. We're a small team that punches well above its weight. Client feedback is outstanding, and every engineer here has a visible impact. Day to day, you'll: Architect and deliver scalable, secure software for commercial clients across multiple sectors. Assess technical trade-offs and guide design decisions across projects. Write, review, and own high-quality code - primarily Python (Flask, FastAPI, or Django) and JavaScript/TypeScript (React preferred). Build and maintain RESTful APIs and modern frontends. Work directly with clients - communicating clearly, understanding the why behind what you're building. Feed into new client proposals and help improve internal engineering processes. Mentor junior developers through code reviews, pairing, and knowledge-sharing. Use AI coding agents to accelerate delivery whilst maintaining correctness and security. AI Engineering (Required) Hands-on experience with AI coding agents in day-to-day work - prompting, iterating, reviewing generated code, validating outputs. Working understanding of LLM fundamentals and limitations (hallucinations, context windows, evaluation). Familiarity with prompting patterns, tool use, and concepts like RAG and embeddings. Awareness of safety and privacy concerns when using AI tools (secrets, PII, licensing). Ability to integrate AI into your workflow without compromising code quality. What We're Looking For 5+ years' experience as a full-stack engineer. Strong track record delivering enterprise-grade web applications and APIs. Confident across Python backend frameworks and modern frontend (React/TypeScript). Comfortable owning the full product lifecycle. Proactive, accountable, and effective in small, fast-moving teams. Clear communicator across technical and non-technical audiences. Keen to broaden into a generalist whilst deepening your core strengths - not just staying in one lane. What We Offer Tech ownership and autonomy from day one. High-impact work - you'll see real results within months, not years. Room to innovate, not just maintain. A small, collaborative team that owns problems end to end and learns fast. Clients ambitious enough to rethink how they use data and technology. A clear path to leading technical programmes and shaping strategy - growth here is earned, not queued. Perks & Benefits £6,000 annual training & conference budget to stay at the cutting edge Up to 6% matched pension for long-term financial security Comprehensive private healthcare via Vitality EMI share options scheme - own a piece of the growth you help create Work from anywhere in the world for up to 1 month/year 25 days holiday + buy/sell up to 5 additional days Cycle-to-work scheme for sustainable commuting Central London office stocked with refreshments, socials, and vibrant atmosphere Exclusive discounts on retail, travel, tech & fitness memberships Access to cutting-edge tools, platforms, and regular tech talks & innovation time Equal Opportunities We're building a team that benefits from different perspectives, experiences, and ways of thinking. We know that great talent comes from all backgrounds, and we encourage applications from everyone who meets the role requirements, regardless of age, disability, gender identity, race, religion, sexuality, or any other characteristic. If you're unsure whether you're a perfect fit but believe you can do the job well, we'd still like to hear from you. We hire based on your skills, potential, and ability to contribute to our team, and we're committed to a fair and objective selection process for all candidates.
Engineering Manager - Europe Lead and grow a team of over 25 engineers at Ashby, focusing on autonomy, ownership, and minimal process interference. Responsibilities Build and mentor a high performing engineering team, focusing on skill development and autonomous project ownership. Provide feedback on product and technical specifications to guide scope and quality decisions. Coach engineers to handle large, loosely defined projects, driving them to completion. Participate in the codebase as needed-debug, bug fixes, and improving developer experience while staying off the critical path. Own and improve internal systems, such as demo account data generation and simulation, impacting engineering, QA, and sales. Qualifications Strong technical background with ability to engage in in depth conversations across infra, backend, and frontend. Experience in people management; adept at giving feedback, coaching, and building growth systems. Excellent communicator capable of facilitating change and navigating complex team dynamics. Deep understanding of what makes exceptional engineers and how to recruit and grow them. Comfortable in high trust, high autonomy environments; willing to build own feedback loops. Enthusiastic about maintaining coding skills and staying current with technology. Benefits Competitive salary and equity with a 10 year stock option exercise window. Unlimited PTO with a recommended four week break per year. Generous equipment, software, and office furniture budget. £100/month education budget for books, conferences, and training. Compensation Range: £91 000-£200 000 Equal Employment Opportunity - Ashby provides equal employment opportunities (EEO) to all employees and applicants for employment without regard to race, color, religion, sex, national origin, age, disability, genetics, sexual orientation, gender identity, or gender expression. We are committed to a diverse and inclusive workforce and welcome people from all backgrounds, experiences, perspectives, and abilities.
Aug 22, 2026
Full time
Engineering Manager - Europe Lead and grow a team of over 25 engineers at Ashby, focusing on autonomy, ownership, and minimal process interference. Responsibilities Build and mentor a high performing engineering team, focusing on skill development and autonomous project ownership. Provide feedback on product and technical specifications to guide scope and quality decisions. Coach engineers to handle large, loosely defined projects, driving them to completion. Participate in the codebase as needed-debug, bug fixes, and improving developer experience while staying off the critical path. Own and improve internal systems, such as demo account data generation and simulation, impacting engineering, QA, and sales. Qualifications Strong technical background with ability to engage in in depth conversations across infra, backend, and frontend. Experience in people management; adept at giving feedback, coaching, and building growth systems. Excellent communicator capable of facilitating change and navigating complex team dynamics. Deep understanding of what makes exceptional engineers and how to recruit and grow them. Comfortable in high trust, high autonomy environments; willing to build own feedback loops. Enthusiastic about maintaining coding skills and staying current with technology. Benefits Competitive salary and equity with a 10 year stock option exercise window. Unlimited PTO with a recommended four week break per year. Generous equipment, software, and office furniture budget. £100/month education budget for books, conferences, and training. Compensation Range: £91 000-£200 000 Equal Employment Opportunity - Ashby provides equal employment opportunities (EEO) to all employees and applicants for employment without regard to race, color, religion, sex, national origin, age, disability, genetics, sexual orientation, gender identity, or gender expression. We are committed to a diverse and inclusive workforce and welcome people from all backgrounds, experiences, perspectives, and abilities.
Frontend Developer - Circa 450- 500 per day Inside ir35 (depening on experience) - Remote - 3 months rolling Please note: Due to the nature of the project, successful applicants will be required to be SC cleared prior to appointment My client is a global leading IT consultancy. They are on the hunt for a Database Engineer with Angular experience to join a government end client of theirs. They are looking for resources who can independently work on the following activities: Must have experience of Agentic AI development in one of the following frameworks Open AI (Preferred), Anthropic or Copilot Document design intent and quality assure design documentation Manage dependency reviews with Database and Back-End Developers Development experience using Angular Writing Unit Tests for delivered tickets Update relevant LLDs Carry out Code reviews on other FE tickets This temporary contract is inside IR35 and will require working under the direction of the client delivery manager as part of a multi-disciplinary team. The successful candidate will follow established delivery processes and working practices. This role requires the successful candidate to undergo and be eligible for UK Security Vetting at SC/DV level. Clearance sponsorship will be provided where required. Due to the nature of the work, candidates should meet the relevant residency requirements. If applicable, reserved post nationality restrictions will be confirmed by the client. Damia is committed to inclusive recruitment and welcomes applicants from all backgrounds. Due to the secure nature of the position and working environment, you must have, or be eligible to obtain Security Clearance. Damia Group Limited acts as an employment agency for permanent recruitment and employment business for the supply of temporary workers. By applying for this job you accept our Data Protection Policy which can be found on our website. Please note that no terminology in this advert is intended to discriminate on the grounds of a person's gender, marital status, race, religion, colour, age, disability or sexual orientation. Every candidate will be assessed only in accordance with their merits, qualifications and ability to perform the duties of the job. Should the role require the successful candidate to undergo and be eligible for UK Security Vetting. Clearance sponsorship will be provided where required. Due to the nature of the work, candidates should meet the relevant residency requirements. If applicable, Reserved Post nationality restrictions will be confirmed by the client. Damia is committed to inclusive recruitment and welcomes applicants from all backgrounds. Damia Group is acting as an Employment Business in relation to this vacancy and in accordance to Conduct Regulations 2003.
Aug 22, 2026
Contractor
Frontend Developer - Circa 450- 500 per day Inside ir35 (depening on experience) - Remote - 3 months rolling Please note: Due to the nature of the project, successful applicants will be required to be SC cleared prior to appointment My client is a global leading IT consultancy. They are on the hunt for a Database Engineer with Angular experience to join a government end client of theirs. They are looking for resources who can independently work on the following activities: Must have experience of Agentic AI development in one of the following frameworks Open AI (Preferred), Anthropic or Copilot Document design intent and quality assure design documentation Manage dependency reviews with Database and Back-End Developers Development experience using Angular Writing Unit Tests for delivered tickets Update relevant LLDs Carry out Code reviews on other FE tickets This temporary contract is inside IR35 and will require working under the direction of the client delivery manager as part of a multi-disciplinary team. The successful candidate will follow established delivery processes and working practices. This role requires the successful candidate to undergo and be eligible for UK Security Vetting at SC/DV level. Clearance sponsorship will be provided where required. Due to the nature of the work, candidates should meet the relevant residency requirements. If applicable, reserved post nationality restrictions will be confirmed by the client. Damia is committed to inclusive recruitment and welcomes applicants from all backgrounds. Due to the secure nature of the position and working environment, you must have, or be eligible to obtain Security Clearance. Damia Group Limited acts as an employment agency for permanent recruitment and employment business for the supply of temporary workers. By applying for this job you accept our Data Protection Policy which can be found on our website. Please note that no terminology in this advert is intended to discriminate on the grounds of a person's gender, marital status, race, religion, colour, age, disability or sexual orientation. Every candidate will be assessed only in accordance with their merits, qualifications and ability to perform the duties of the job. Should the role require the successful candidate to undergo and be eligible for UK Security Vetting. Clearance sponsorship will be provided where required. Due to the nature of the work, candidates should meet the relevant residency requirements. If applicable, Reserved Post nationality restrictions will be confirmed by the client. Damia is committed to inclusive recruitment and welcomes applicants from all backgrounds. Damia Group is acting as an Employment Business in relation to this vacancy and in accordance to Conduct Regulations 2003.
Randstad Technologies Recruitment
City, Manchester
Role: Full Stack Developer Type: Contact (6 months and possible extension) Location: Manchester, UK Working Model: Hybrid (2 day per week in office) Must-Have Qualifications: Experience: Minimum 5+ years of professional software development experience. Core Tech: Strong proficiency in Node.js and TypeScript on the server side, with solid hands-on experience in React on the frontend. Cloud Native: Significant experience building and running production systems on AWS (or major public cloud). Architecture: Deep understanding of Microservices and event-driven architectures, including API design and contract management. Engineering Best Practices: Strong grounding in testing (Unit/Integration/E2E), CI/CD, and Observability. Communication: Excellent ability to explain complex technical topics to non-technical stakeholders. Nice to Have: Experience in e-commerce, search, ranking, or marketplace domains. Previous work with User-Generated Content (UGC), reviews, or recommendation engines. Experience with A/B testing and data-driven product development. This is an urgent vacancy with a deadline where the hiring manager is shortlisting for an interview immediately. Please apply with a copy of your CV or send it praveen. Com Randstad Technologies is acting as an Employment Business in relation to this vacancy.
Aug 22, 2026
Contractor
Role: Full Stack Developer Type: Contact (6 months and possible extension) Location: Manchester, UK Working Model: Hybrid (2 day per week in office) Must-Have Qualifications: Experience: Minimum 5+ years of professional software development experience. Core Tech: Strong proficiency in Node.js and TypeScript on the server side, with solid hands-on experience in React on the frontend. Cloud Native: Significant experience building and running production systems on AWS (or major public cloud). Architecture: Deep understanding of Microservices and event-driven architectures, including API design and contract management. Engineering Best Practices: Strong grounding in testing (Unit/Integration/E2E), CI/CD, and Observability. Communication: Excellent ability to explain complex technical topics to non-technical stakeholders. Nice to Have: Experience in e-commerce, search, ranking, or marketplace domains. Previous work with User-Generated Content (UGC), reviews, or recommendation engines. Experience with A/B testing and data-driven product development. This is an urgent vacancy with a deadline where the hiring manager is shortlisting for an interview immediately. Please apply with a copy of your CV or send it praveen. Com Randstad Technologies is acting as an Employment Business in relation to this vacancy.
Digital Developer Location: Exeter - hybrid, 1-2 days per week in the officeContract: 6 monthsRate: £600 per day UmbrellaIR35: Inside IR35 We are currently recruiting for an experienced Digital Developer / Frontend Developer to join a government organisation on an initial 6-month contract. This is a great opportunity for a frontend specialist to work on modern digital services within a collaborative, Agile environment, developing accessible and responsive user experiences and integrating with internally developed APIs and platforms. The Role You will work across the full software development lifecycle, from development and testing through to deployment and ongoing enhancement. You'll collaborate closely with design, product and technical teams to deliver high-quality digital solutions. Key responsibilities include: Developing responsive, accessible and high-quality user interfaces using React, Next.js and TypeScript Working with internal APIs and search indexes to deliver effective user experiences Collaborating with design and product teams to create intuitive and user-friendly interfaces Maintaining and enhancing existing applications Participating in code reviews, testing and debugging Supporting CI/CD pipelines and automated testing Producing technical documentation and contributing to project requirements Working within Agile development practices Keeping up to date with modern frontend technologies and development best practice About You We're looking for a proven frontend developer with strong experience across modern JavaScript frameworks and a good understanding of software development practices. You'll ideally have: Strong commercial experience with React, Next.js and TypeScript Excellent knowledge of HTML, CSS and JavaScript Experience integrating with APIs Familiarity with Elasticsearch/search indexes and SQL-based databases Experience using Git and modern development workflows Understanding of cloud environments, ideally Azure and/or AWS Experience with responsive and accessible web development Strong debugging and problem-solving skills Excellent communication and collaboration skills Experience working in an Agile environment Desirable Experience with PyGeoAPI Experience with Jira and Confluence Experience working with geospatial/GIS technologies
Aug 20, 2026
Full time
Digital Developer Location: Exeter - hybrid, 1-2 days per week in the officeContract: 6 monthsRate: £600 per day UmbrellaIR35: Inside IR35 We are currently recruiting for an experienced Digital Developer / Frontend Developer to join a government organisation on an initial 6-month contract. This is a great opportunity for a frontend specialist to work on modern digital services within a collaborative, Agile environment, developing accessible and responsive user experiences and integrating with internally developed APIs and platforms. The Role You will work across the full software development lifecycle, from development and testing through to deployment and ongoing enhancement. You'll collaborate closely with design, product and technical teams to deliver high-quality digital solutions. Key responsibilities include: Developing responsive, accessible and high-quality user interfaces using React, Next.js and TypeScript Working with internal APIs and search indexes to deliver effective user experiences Collaborating with design and product teams to create intuitive and user-friendly interfaces Maintaining and enhancing existing applications Participating in code reviews, testing and debugging Supporting CI/CD pipelines and automated testing Producing technical documentation and contributing to project requirements Working within Agile development practices Keeping up to date with modern frontend technologies and development best practice About You We're looking for a proven frontend developer with strong experience across modern JavaScript frameworks and a good understanding of software development practices. You'll ideally have: Strong commercial experience with React, Next.js and TypeScript Excellent knowledge of HTML, CSS and JavaScript Experience integrating with APIs Familiarity with Elasticsearch/search indexes and SQL-based databases Experience using Git and modern development workflows Understanding of cloud environments, ideally Azure and/or AWS Experience with responsive and accessible web development Strong debugging and problem-solving skills Excellent communication and collaboration skills Experience working in an Agile environment Desirable Experience with PyGeoAPI Experience with Jira and Confluence Experience working with geospatial/GIS technologies
Solos Consultants Ltd is recruiting an experienced Digital Developer to join a government organisation on a 6-month contract in Exeter, with hybrid working (1-2 days in the office). You will build modern frontend experiences using React, Next.js and TypeScript, delivering accessible, responsive interfaces and integrating with internal APIs. You will work across the full development lifecycle in an Agile team, collaborate with design and product, participate in code reviews, and contribute to
Aug 20, 2026
Full time
Solos Consultants Ltd is recruiting an experienced Digital Developer to join a government organisation on a 6-month contract in Exeter, with hybrid working (1-2 days in the office). You will build modern frontend experiences using React, Next.js and TypeScript, delivering accessible, responsive interfaces and integrating with internal APIs. You will work across the full development lifecycle in an Agile team, collaborate with design and product, participate in code reviews, and contribute to
About Wintermute Wintermute is one of the largest crypto native algorithmic trading companies in digital assets. We provide liquidity algorithmically across cryptocurrency exchanges and trading platforms, a broad range of OTC trading products as well as support high profile blockchain projects and traditional financial institutions moving into crypto. We actively participate in the development of the blockchain ecosystem through investments, partnerships, and incubation of projects. Working at Wintermute We are looking for an experienced Product Manager to lead the development of our NODE platform, enabling seamless crypto trading experiences for institutional clients. This is a hands on, cross functional role that will have direct impact. You will work closely with engineers, designers, core developers, and stakeholders across the business to define, build, and ship a secure, scalable, and high performance trading platform. What you will work on Define and own the technical architecture for Wintermute's trading products, client facing portals, and internal applications - making the key technology and design decisions that determine how these systems are built and scaled. Lead and mentor a team of engineers across the full stack, setting standards for code quality, review processes, and engineering best practices. Drive technical strategy and roadmap alongside product leadership, translating business requirements into robust, scalable technical solutions. Architect systems that handle high data volumes, real time streaming, and low latency interactions - the kind of challenges you'd find on a trading platform processing millions of events per second. Oversee frontend experience across the full customer lifecycle, from onboarding portals to real time trading dashboards. Work cross functionally with product, marketing, trading, and backend engineering teams to ensure alignment and delivery. Establish and evolve engineering processes - sprint planning, incident response, deployment pipelines - that let the team ship with confidence and speed. Hard skills requirements 8+ years of software engineering experience, with at least 3 years in a technical leadership role (tech lead, engineering lead, or similar). Proven track record of making architecture decisions for complex, data intensive applications - ideally in trading platforms, financial services, or other high throughput/low latency environments. Deep experience building and scaling real time, high data volume systems (e.g., trading dashboards, live data feeds, streaming analytics, order management systems). Strong command of the modern frontend stack: TypeScript, React, Node.js - and the ability to evaluate and adopt new technologies as needed. Hands on server side experience: building and maintaining backend services, APIs, and data pipelines using languages such as Node.js, Python, Go, or similar. Solid understanding of end to end system architecture: APIs, microservices, event driven architectures, WebSockets, message queues, databases, and how frontend and backend systems work together in high performance environments. Experience with infrastructure and DevOps fundamentals: CI/CD, cloud platforms, CDN, monitoring/observability, and deployment strategies. Strong understanding of security best practices (OWASP, authentication/authorization patterns, secure data handling) - especially in a financial context. Experience hiring, mentoring, and growing engineers - building a high performing team, not just managing one. Nice to have Experience at a trading firm, fintech, or any environment where milliseconds matter and data volumes are extreme. Familiarity with algorithmic trading concepts and financial market infrastructure. Experience with performance optimization at scale - profiling, caching strategies, efficient rendering of large datasets. Experience with backend technologies beyond Node.js (Python, Go, Rust, or similar) for performance critical services. Write to us if you Love making hard technical decisions and seeing them pay off at scale. Get energized by building high performance systems that handle serious data volumes. Want to shape the technical direction of a product team, not just execute on someone else's plan. Are passionate about engineering culture - code quality, mentorship, and continuous improvement. Are curious about algorithmic trading and financial markets. Are determined, ambitious yet humble, willing to lead by example. Thrive in a meritocratic environment where impact matters more than titles. Prefer ownership over process - you'd rather build the right thing than follow a playbook. Enjoy working in person with your team (not fully remote). Tip for a successful application We will arrange a UK visa sponsorship and help with relocation to London.
Aug 19, 2026
Full time
About Wintermute Wintermute is one of the largest crypto native algorithmic trading companies in digital assets. We provide liquidity algorithmically across cryptocurrency exchanges and trading platforms, a broad range of OTC trading products as well as support high profile blockchain projects and traditional financial institutions moving into crypto. We actively participate in the development of the blockchain ecosystem through investments, partnerships, and incubation of projects. Working at Wintermute We are looking for an experienced Product Manager to lead the development of our NODE platform, enabling seamless crypto trading experiences for institutional clients. This is a hands on, cross functional role that will have direct impact. You will work closely with engineers, designers, core developers, and stakeholders across the business to define, build, and ship a secure, scalable, and high performance trading platform. What you will work on Define and own the technical architecture for Wintermute's trading products, client facing portals, and internal applications - making the key technology and design decisions that determine how these systems are built and scaled. Lead and mentor a team of engineers across the full stack, setting standards for code quality, review processes, and engineering best practices. Drive technical strategy and roadmap alongside product leadership, translating business requirements into robust, scalable technical solutions. Architect systems that handle high data volumes, real time streaming, and low latency interactions - the kind of challenges you'd find on a trading platform processing millions of events per second. Oversee frontend experience across the full customer lifecycle, from onboarding portals to real time trading dashboards. Work cross functionally with product, marketing, trading, and backend engineering teams to ensure alignment and delivery. Establish and evolve engineering processes - sprint planning, incident response, deployment pipelines - that let the team ship with confidence and speed. Hard skills requirements 8+ years of software engineering experience, with at least 3 years in a technical leadership role (tech lead, engineering lead, or similar). Proven track record of making architecture decisions for complex, data intensive applications - ideally in trading platforms, financial services, or other high throughput/low latency environments. Deep experience building and scaling real time, high data volume systems (e.g., trading dashboards, live data feeds, streaming analytics, order management systems). Strong command of the modern frontend stack: TypeScript, React, Node.js - and the ability to evaluate and adopt new technologies as needed. Hands on server side experience: building and maintaining backend services, APIs, and data pipelines using languages such as Node.js, Python, Go, or similar. Solid understanding of end to end system architecture: APIs, microservices, event driven architectures, WebSockets, message queues, databases, and how frontend and backend systems work together in high performance environments. Experience with infrastructure and DevOps fundamentals: CI/CD, cloud platforms, CDN, monitoring/observability, and deployment strategies. Strong understanding of security best practices (OWASP, authentication/authorization patterns, secure data handling) - especially in a financial context. Experience hiring, mentoring, and growing engineers - building a high performing team, not just managing one. Nice to have Experience at a trading firm, fintech, or any environment where milliseconds matter and data volumes are extreme. Familiarity with algorithmic trading concepts and financial market infrastructure. Experience with performance optimization at scale - profiling, caching strategies, efficient rendering of large datasets. Experience with backend technologies beyond Node.js (Python, Go, Rust, or similar) for performance critical services. Write to us if you Love making hard technical decisions and seeing them pay off at scale. Get energized by building high performance systems that handle serious data volumes. Want to shape the technical direction of a product team, not just execute on someone else's plan. Are passionate about engineering culture - code quality, mentorship, and continuous improvement. Are curious about algorithmic trading and financial markets. Are determined, ambitious yet humble, willing to lead by example. Thrive in a meritocratic environment where impact matters more than titles. Prefer ownership over process - you'd rather build the right thing than follow a playbook. Enjoy working in person with your team (not fully remote). Tip for a successful application We will arrange a UK visa sponsorship and help with relocation to London.
We're on a mission to make migration easy. We started building the company in 2017. Since then, we've grown from 3 to 700+ people, gained unicorn status, raised £140M over three funding rounds, turned profitable, insured millions of drivers and lent millions in car loans. But we're only just getting started. Our goal is to become one of the largest financial services providers in the world. Over the next 10 years we'll grow exponentially, not only by scaling our existing products, but also by building new ones. To achieve our goals we need incredibly ambitious, commercially driven people who never settle for 'good enough'. Marshmallowers are hungry for autonomy and ownership, and would rather improve than coast. Everyone raises standards and has an impact, with a focus on collective success over self-interest. We've created an environment where curious, tenacious people win and grow together. If that sounds motivating, this could be the place for you. 12m FTC - (London, hybrid 3 days a week) Data Science at MarshmallowOur data science team supports various business functions across our Product teams and within Pricing and Claims. Working across the full spectrum of data science problems, from traditional machine learning for risk-based decisioning through to generative AI and the automation of complex operational journeys, all within a regulated insurtech/fintech domain. This is a hands on leadership role for someone who can bring a team together and ensure it delivers at pace while its foundations strengthen: leading and developing the people, personally holding the bar on technical quality, and partnering closely with engineering and product. It suits a leader who is strong both leading and growing teams as well as a technical decision-maker. About the teamThe Data Science team operates as a primary commercial engine for the company, using data and machine learning to drive tangible business outcomes, from pricing strategy to operational efficiency. The team works closely with senior stakeholders and partners across data, engineering, product and commercial functions to identify the right opportunities and make thoughtful technical trade-offs. We operate with a flat structure, so leaders stay close to the people doing the work and support colleagues at different levels of experience. Our ambition is to keep raising the bar for how data science delivers impact across the business. Product & Tech at MarshmallowBackend and Infrastructure: Latest Java μService, Spring Boot with Spring Cloud, Dynamodb, Terraform, Docker, AWS Fargate, Datadog, Opslevel, and TeamCity. Frontend and Mobile: TypeScript, CSS-in-JS (Styled Components), React, Redux, Redux Hooks, and other modern state management libraries. Kotlin on Android and Swift on iOS. Data: SQL, Python, Snowflake, dbt, Airflow & Looker AI at the company: Sierra.ai for conversational AI, Python and LangChain for agentic AI solutions, Sagemaker and MLflow for Machine Learning, Cursor and Claude Code for developer productivity. What you'll be doing Drive commercial impact at every turn: Proactively identify and prioritise data science opportunities that offer the highest leverage for the business, ensuring every project is measured by its bottom line contribution and strategic commercial alignment. Lead the people and culture agenda for data science: set goals, manage performance and development conversations, and keep an evolving team engaged and delivering high impact projects. Provide hands on technical leadership: set and hold a consistent bar on technical standards across the full modelling and data lifecycle. Represent data science in cross functional conversations, partnering closely with engineering, product and pricing on technical direction and trade offs. Build collective ownership of technical standards across Data Science, coaching people to look beyond their own domain and drive function wide improvements to shared standards, tooling and best practice. Who you are You bring an inherently commercial first mindset: you don't just build models, you build solutions that directly influence the P&L, and you constantly evaluate every technical trade off through a rigorous lens of business value. You make confident decisions even when the picture is still forming, and you're comfortable operating across more than one domain at once. You have a track record of driving visible improvements to team culture, ways of working, and technical standards. You build trust quickly with a team, and coach others to challenge and disagree constructively, to drive decisions that deliver the highest impact outcomes You thrive in a fast paced and ever evolving environment; you adapt to change well (and in fact relish it!). You like to take real ownership of your work, drive yourself forward, and work well both autonomously but also collaboratively with the team and your stakeholders. What we're looking for from you Must have Excellent leadership and team management skills. A strong background as a senior data science individual contributor, with commercial experience delivering ML solutions end to end Proven ability to influence technical direction across Data Science and Engineering, including shaping scalable model/service integration patterns and challenging proposals to drive robust, long term solutions. Strong stakeholder management skills, with confidence communicating trade offs and pushing back constructively to C suite and senior stakeholders across different functions to ensure high quality outcomes. Nice to have Experience in insurance, fraud, or another regulated decisioning domain. Experience of contributing towards the strategy for Gen AI within an organisation, and leading data scientists to deliver Gen AI solutions that drove measurable business value (We cannot offer visa sponsorship for this role) Perks & benefits Bonus scheme designed to reward high performance Private medical insurance with Vitality, mental health support with Oliva Personal learning budget and 2 dedicated L&D days a year Monthly flexible benefits budget to spend as you choose 25 days holiday plus bank holidays 4 weeks Work From Anywhere per year Our process Recruiter call with the Talent Acquisition team. Past experience interview with Hannah Penfold, Hiring Manager. Technical deep dive or case study focused on technical trade-offs, commercial thinking and influence (2 Senior Stakeholders) Final leadership and values interviews with senior technology and commercial stakeholders, (CTO & Co-Founder) We review every application and will always let you know the outcome, though we're unable to provide individual feedback at application stage. Diversity of thought We know the best ideas come from having different perspectives in the room - and we're committed to hiring fairly, regardless of background, identity or experience. If you see yourself in this role, we'd encourage you to apply.
Aug 18, 2026
Full time
We're on a mission to make migration easy. We started building the company in 2017. Since then, we've grown from 3 to 700+ people, gained unicorn status, raised £140M over three funding rounds, turned profitable, insured millions of drivers and lent millions in car loans. But we're only just getting started. Our goal is to become one of the largest financial services providers in the world. Over the next 10 years we'll grow exponentially, not only by scaling our existing products, but also by building new ones. To achieve our goals we need incredibly ambitious, commercially driven people who never settle for 'good enough'. Marshmallowers are hungry for autonomy and ownership, and would rather improve than coast. Everyone raises standards and has an impact, with a focus on collective success over self-interest. We've created an environment where curious, tenacious people win and grow together. If that sounds motivating, this could be the place for you. 12m FTC - (London, hybrid 3 days a week) Data Science at MarshmallowOur data science team supports various business functions across our Product teams and within Pricing and Claims. Working across the full spectrum of data science problems, from traditional machine learning for risk-based decisioning through to generative AI and the automation of complex operational journeys, all within a regulated insurtech/fintech domain. This is a hands on leadership role for someone who can bring a team together and ensure it delivers at pace while its foundations strengthen: leading and developing the people, personally holding the bar on technical quality, and partnering closely with engineering and product. It suits a leader who is strong both leading and growing teams as well as a technical decision-maker. About the teamThe Data Science team operates as a primary commercial engine for the company, using data and machine learning to drive tangible business outcomes, from pricing strategy to operational efficiency. The team works closely with senior stakeholders and partners across data, engineering, product and commercial functions to identify the right opportunities and make thoughtful technical trade-offs. We operate with a flat structure, so leaders stay close to the people doing the work and support colleagues at different levels of experience. Our ambition is to keep raising the bar for how data science delivers impact across the business. Product & Tech at MarshmallowBackend and Infrastructure: Latest Java μService, Spring Boot with Spring Cloud, Dynamodb, Terraform, Docker, AWS Fargate, Datadog, Opslevel, and TeamCity. Frontend and Mobile: TypeScript, CSS-in-JS (Styled Components), React, Redux, Redux Hooks, and other modern state management libraries. Kotlin on Android and Swift on iOS. Data: SQL, Python, Snowflake, dbt, Airflow & Looker AI at the company: Sierra.ai for conversational AI, Python and LangChain for agentic AI solutions, Sagemaker and MLflow for Machine Learning, Cursor and Claude Code for developer productivity. What you'll be doing Drive commercial impact at every turn: Proactively identify and prioritise data science opportunities that offer the highest leverage for the business, ensuring every project is measured by its bottom line contribution and strategic commercial alignment. Lead the people and culture agenda for data science: set goals, manage performance and development conversations, and keep an evolving team engaged and delivering high impact projects. Provide hands on technical leadership: set and hold a consistent bar on technical standards across the full modelling and data lifecycle. Represent data science in cross functional conversations, partnering closely with engineering, product and pricing on technical direction and trade offs. Build collective ownership of technical standards across Data Science, coaching people to look beyond their own domain and drive function wide improvements to shared standards, tooling and best practice. Who you are You bring an inherently commercial first mindset: you don't just build models, you build solutions that directly influence the P&L, and you constantly evaluate every technical trade off through a rigorous lens of business value. You make confident decisions even when the picture is still forming, and you're comfortable operating across more than one domain at once. You have a track record of driving visible improvements to team culture, ways of working, and technical standards. You build trust quickly with a team, and coach others to challenge and disagree constructively, to drive decisions that deliver the highest impact outcomes You thrive in a fast paced and ever evolving environment; you adapt to change well (and in fact relish it!). You like to take real ownership of your work, drive yourself forward, and work well both autonomously but also collaboratively with the team and your stakeholders. What we're looking for from you Must have Excellent leadership and team management skills. A strong background as a senior data science individual contributor, with commercial experience delivering ML solutions end to end Proven ability to influence technical direction across Data Science and Engineering, including shaping scalable model/service integration patterns and challenging proposals to drive robust, long term solutions. Strong stakeholder management skills, with confidence communicating trade offs and pushing back constructively to C suite and senior stakeholders across different functions to ensure high quality outcomes. Nice to have Experience in insurance, fraud, or another regulated decisioning domain. Experience of contributing towards the strategy for Gen AI within an organisation, and leading data scientists to deliver Gen AI solutions that drove measurable business value (We cannot offer visa sponsorship for this role) Perks & benefits Bonus scheme designed to reward high performance Private medical insurance with Vitality, mental health support with Oliva Personal learning budget and 2 dedicated L&D days a year Monthly flexible benefits budget to spend as you choose 25 days holiday plus bank holidays 4 weeks Work From Anywhere per year Our process Recruiter call with the Talent Acquisition team. Past experience interview with Hannah Penfold, Hiring Manager. Technical deep dive or case study focused on technical trade-offs, commercial thinking and influence (2 Senior Stakeholders) Final leadership and values interviews with senior technology and commercial stakeholders, (CTO & Co-Founder) We review every application and will always let you know the outcome, though we're unable to provide individual feedback at application stage. Diversity of thought We know the best ideas come from having different perspectives in the room - and we're committed to hiring fairly, regardless of background, identity or experience. If you see yourself in this role, we'd encourage you to apply.
Front End Developer £500-£540 per day Outside IR35 React TypeScript Secure, Analyst-Facing Applications Location: London (MOD site) Working Pattern: 4 days per week onsite Clearance: Current DV Security Clearance required Background: MOD / Defence / National Security experience required The Opportunity We're looking for an experienced Front End Developer to build intuitive, secure and role-aware interfaces for a next-generation Defence Intelligence platform. You'll work closely with UX Designers, Back End Developers and wider delivery teams to turn complex operational requirements into accessible, maintainable and high-performing applications that improve visibility, streamline workflows and support users in a mission-critical environment. This is an excellent opportunity to work on modern digital capabilities within a highly secure Defence environment. About the Programme This programme is delivering an AI-enabled Defence Intelligence capability designed to improve visibility of operational information, reduce administrative burden and support faster, more informed decision-making. As part of an agile, multidisciplinary team, you'll help deliver modern frontend applications that integrate with secure backend services and existing Defence platforms. Key Responsibilities Develop and maintain frontend applications using React and TypeScript. Build reusable UI components aligned with a coherent design system and component library. Work closely with UX Designers to translate user journeys, wireframes and prototypes into production-ready interfaces. Integrate frontend applications with REST APIs, workflow services and identity/access mechanisms. Develop role-aware dashboards, task views, status tracking and operational work queues. Apply accessibility, responsive design and usability best practices. Participate in agile ceremonies, sprint delivery, demonstrations and user feedback sessions. Contribute to frontend testing, quality assurance and continuous improvement. Essential Skills & Experience Demonstrable experience delivering software within MOD, Defence, National Security or similarly secure environments. Strong commercial React development experience. Strong TypeScript capability. Experience consuming REST APIs and collaborating closely with backend engineering teams. Experience building responsive, accessible and maintainable user interfaces. Good understanding of component-based development and design system principles. Experience using Git within agile delivery environments. Desirable Experience Experience working with Figma and modern UX/design workflows. Experience with Material UI, GOV.UK Design System, MOD design patterns or equivalent component frameworks. Experience developing workflow-driven applications. Experience implementing secure authentication and role-based access control. Experience developing search-led user interfaces. Experience supporting applications deployed in classified or highly regulated environments. Mandatory Requirements Current DV Security Clearance. Ability to work onsite at an MOD location in London four days per week. Previous experience delivering within MOD, Defence, Defence Intelligence, Strategic Command or wider National Security organisations. Comfortable working with OFFICIAL-SENSITIVE and classified material where authorised. Ways of Working Agile delivery within a multidisciplinary team. Close collaboration with Defence stakeholders, Product, Delivery, UX and Engineering teams. Secure-by-design approach with a strong focus on audit, traceability, access control and assurance. Practical focus on creating intuitive, reliable applications while maintaining operational accountability. What We're Looking For We're interested in Front End Developers who can demonstrate: Successful delivery within secure MOD or Defence environments. Strong React and TypeScript development experience. The ability to turn complex UX requirements into accessible, maintainable and intuitive interfaces. Excellent communication skills across technical and non-technical stakeholders. A practical understanding of agile delivery and modern frontend engineering. Awareness of secure system delivery, accreditation considerations and operational governance. Rate: £500-£540 per day (Outside IR35) Location: London (4 days onsite) Clearance: Current DV Security Clearance required
Aug 17, 2026
Full time
Front End Developer £500-£540 per day Outside IR35 React TypeScript Secure, Analyst-Facing Applications Location: London (MOD site) Working Pattern: 4 days per week onsite Clearance: Current DV Security Clearance required Background: MOD / Defence / National Security experience required The Opportunity We're looking for an experienced Front End Developer to build intuitive, secure and role-aware interfaces for a next-generation Defence Intelligence platform. You'll work closely with UX Designers, Back End Developers and wider delivery teams to turn complex operational requirements into accessible, maintainable and high-performing applications that improve visibility, streamline workflows and support users in a mission-critical environment. This is an excellent opportunity to work on modern digital capabilities within a highly secure Defence environment. About the Programme This programme is delivering an AI-enabled Defence Intelligence capability designed to improve visibility of operational information, reduce administrative burden and support faster, more informed decision-making. As part of an agile, multidisciplinary team, you'll help deliver modern frontend applications that integrate with secure backend services and existing Defence platforms. Key Responsibilities Develop and maintain frontend applications using React and TypeScript. Build reusable UI components aligned with a coherent design system and component library. Work closely with UX Designers to translate user journeys, wireframes and prototypes into production-ready interfaces. Integrate frontend applications with REST APIs, workflow services and identity/access mechanisms. Develop role-aware dashboards, task views, status tracking and operational work queues. Apply accessibility, responsive design and usability best practices. Participate in agile ceremonies, sprint delivery, demonstrations and user feedback sessions. Contribute to frontend testing, quality assurance and continuous improvement. Essential Skills & Experience Demonstrable experience delivering software within MOD, Defence, National Security or similarly secure environments. Strong commercial React development experience. Strong TypeScript capability. Experience consuming REST APIs and collaborating closely with backend engineering teams. Experience building responsive, accessible and maintainable user interfaces. Good understanding of component-based development and design system principles. Experience using Git within agile delivery environments. Desirable Experience Experience working with Figma and modern UX/design workflows. Experience with Material UI, GOV.UK Design System, MOD design patterns or equivalent component frameworks. Experience developing workflow-driven applications. Experience implementing secure authentication and role-based access control. Experience developing search-led user interfaces. Experience supporting applications deployed in classified or highly regulated environments. Mandatory Requirements Current DV Security Clearance. Ability to work onsite at an MOD location in London four days per week. Previous experience delivering within MOD, Defence, Defence Intelligence, Strategic Command or wider National Security organisations. Comfortable working with OFFICIAL-SENSITIVE and classified material where authorised. Ways of Working Agile delivery within a multidisciplinary team. Close collaboration with Defence stakeholders, Product, Delivery, UX and Engineering teams. Secure-by-design approach with a strong focus on audit, traceability, access control and assurance. Practical focus on creating intuitive, reliable applications while maintaining operational accountability. What We're Looking For We're interested in Front End Developers who can demonstrate: Successful delivery within secure MOD or Defence environments. Strong React and TypeScript development experience. The ability to turn complex UX requirements into accessible, maintainable and intuitive interfaces. Excellent communication skills across technical and non-technical stakeholders. A practical understanding of agile delivery and modern frontend engineering. Awareness of secure system delivery, accreditation considerations and operational governance. Rate: £500-£540 per day (Outside IR35) Location: London (4 days onsite) Clearance: Current DV Security Clearance required
