196 jobs found

Principal Java Engineer (AWS / Microservices) Salary: Up to £100,000 + Bonus + Benefits Location: Coventry or Central London - Hybrid (2 days per week onsite) Working Hours: 40 hours per week - Full time Job Type: Permanent A globally established organisation is seeking an experienced Principal Java Engineer to shape the future of large-scale digital platforms used by millions of customers. This role will focus on driving engineering excellence, defining technical standards and leading the design of scalable, high-availability systems across a modern cloud-native environment. Responsibilities for the Principal Java Engineer: Define and evolve engineering strategy, standards and best practices across your domain Lead technical direction across multiple engineering teams and programmes Design and oversee delivery of large-scale, distributed systems using modern technologies Provide expert guidance on technical risk, architecture decisions and prioritisation Support Staff Engineers and development teams with deep technical leadership Drive adoption of DevOps, CI/CD, automation and modern engineering practices Leverage AI and intelligent automation to improve productivity and delivery outcomes Mentor engineers and contribute to a strong engineering culture and community of practice Work closely with senior stakeholders to align technology with business goals Essential Skills for the Principal Java Engineer: Deep hands-on expertise in Java, Spring Boot, Microservices, Kafka and AWS Strong understanding of software architecture and scalable system design Experience leading development of high-performance distributed systems Proven experience in a Principal, Lead or Senior Engineering role Experience defining and governing technical standards and engineering practices Experience influencing strategy across multiple teams or domains Practical experience using Generative AI tools to improve engineering productivity Strong leadership, mentoring and stakeholder engagement skills Desirable Skills for the Principal Java Engineer: Strong advocate of Agile delivery and modern engineering ways of working Experience building collaborative engineering communities Comfortable making data-driven technical decisions at scale Experience working closely with senior engineering leadership teams If you are a senior Java engineering leader looking to shape modern platforms at scale while remaining close to technology, this role offers strong influence, complex challenges and long-term impact.

Role: C#/.NET Full Stack Engineer Base Locations: London, Manchester, Newcastle or Glasgow Working Pattern: Hybrid, with flexibility for client assignments Salary: £45,000 - £55,000 = Bens,Perks,Pension Overview We are seeking experienced Full Stack Engineers to support the delivery of modern digital solutions across a range of transformation programmes. This role sits within a multi-disciplinary engineering and consulting environment, working closely with architects, designers, product teams and client stakeholders. Key Responsibilities Design and build applications using ASP.NET Core, C# and modern JavaScript frameworks Develop responsive, accessible front-end interfaces using React, Angular or Blazor/Razor Contribute to cloud-native architectures on AWS or Azure Implement modern DevOps practices including CI/CD pipelines and automated testing Collaborate within agile teams to deliver high-quality, scalable software Integrate with relational and non-relational databases where required Required Skills & Experience Strong commercial experience with ASP.NET Core and C# Experience building front-end applications using modern frameworks Cloud experience (AWS/Azure) CI/CD (GitHub, GitLab, Azure DevOps or Jenkins) Proficiency with Git workflows Experience working in agile environments Desirable Experience Docker, Docker Compose Terraform or other IaC tools EF Core, relational DB experience NoSQL (MongoDB, Cosmos DB) Microservices in Java/JS/TS Experience with LLM/AI integration frameworks (e.g., LangChain) Familiarity with modern design systems Additional Information A flexible benefits package is available to tailor to personal needs Applicants must have valid UK work authorisation This role may require travel to client sites

White Collar Factory (95009), United Kingdom, London, London Engineering Manager - Software & ML About this role We are looking for a Software Engineering Manager who brings a solid foundation in modern development and some experience with Machine Learning environments . You'll lead and grow a team that builds the core software powering our data-driven financial products, ensuring our models are integrated into seamless, consumer-facing experiences. What you'll do Lead & Scale: Support a cross-functional group of engineers to design, develop, and integrate software features that are vital to the lives of credit card consumers. Nurture Talent: Coach and nurture your engineers, including those working on ML integration to achieve their technical, business, and personal goals. Bridge the Gap: Collaborate with Product Managers and Data Scientists to ensure ML models are effectively integrated into our production software. Build Robust Systems: Oversee the development of platforms that are performant, secure, and capable of handling the unique deployment needs of AI-powered features. Optimize Delivery: Enhance engineering and agile processes, ensuring that model updates and software releases move in sync. What we're looking for Leadership Excellence: Proven experience leading and supporting software engineering teams to achieve business goals. Technical Breadth: Excellent knowledge of RESTful API development in modern languages (Java, Python, or .Net) and experience with Cloud environments (AWS or Azure). AI Awareness: You aren't necessarily a researcher, but you have expectations of how AI fits into the stack . You understand the basics of model inference, data requirements, and how to manage the non-deterministic nature of AI. Strategic Thinking: Comfortable making technical trade-offs between the need for rapid experimentation and long-term architectural stability. Collaborative Mindset: Ability to communicate effectively across engineering teams to maximize inner-sourcing and reduce technical debt. What you'll get to learn ML Integration at Scale: How to take machine learning models out of the lab and into a high-concurrency production environment. Regulated AI: Navigating the complexities of fairness and transparency in a regulated financial landscape. Cloud Evolution: Deepening your expertise in AWS/Cloud native tools that support modern intelligent applications. Where and how you'll work This is a permanent position based in either our London or Nottingham offices. We have a hybrid working model. You'll be based in the office 3 days a week (Tuesdays, Wednesdays, and Thursdays) to foster team connection and collaboration. What's in it for you Innovation Time: We give you 10% of your time to work on cutting-edge projects-whether that's exploring new AI frameworks or building internal tools. Growth: Access to Capital One University and external training to help you grow as both a leader and a technical strategist. Total Reward: Competitive salary, performance bonus, and immediate access to core benefits (pension, private medical, and generous holiday). World-Class Facilities: From our Nottingham gym and music rooms to our London rooftop running track and premium coffee bars. Our Commitment to Diversity We pride ourselves on hiring the best people, not the same people. We partner with organisations like Women in Tech and Stonewall to ensure we build teams that reflect the customers we serve. We offer a host of internal networks including REACH (Race Equality and Culture Heritage), OutFront (LGBTQ+ support), and Mind Your Mind . Capital One is committed to diversity in the workplace. If you require a reasonable adjustment, please contact All information will be kept confidential and will only be used for the purpose of applying a reasonable adjustment. For technical support or questions about Capital One's recruiting process, please send an email to Capital One does not provide, endorse nor guarantee and is not liable for third-party products, services, educational tools or other information available through this site. Capital One Financial is made up of several different entities. Please note that any position posted in Canada is for Capital One Canada, any position posted in the United Kingdom is for Capital One Europe and any position posted in the Philippines is for Capital One Philippines Service Corp. (COPSSC). Who We Are At Capital One, we're building a leading information-based technology company. Still founder-led by Chairman and Chief Executive Officer Richard Fairbank, Capital One is on a mission to help our customers succeed by bringing ingenuity, simplicity, and humanity to banking. We measure our efforts by the success our customers enjoy and the advocacy they exhibit. We are succeeding because they are succeeding. Guided by our shared values, we thrive in an environment where collaboration and openness are valued. We believe that innovation is powered by perspective and that teamwork and respect for each other lead to superior results. We elevate each other and obsess about doing the right thing. Our associates serve with humility and a deep respect for their responsibility in helping our customers achieve their goals and realize their dreams. Together, we are on a quest to change banking for good.

We are working with a globally recognised, high-growth technology business within the transport sector to recruit an experienced Full Stack Software Developer based in Ashby-de-la-Zouch. This is an exciting job opportunity to join a forward-thinking engineering team working on long-term, innovative projects within a fast-growing market. As a Full Stack Software Developer, you will play a key role in designing, building, and deploying scalable, cloud-based applications that support mission-critical systems. In this job, you will contribute across the full software development lifecycle, from architecture and feature development through to deployment, optimisation, and continuous improvement. Experience required for the Full Stack Software Engineer job based in Ashby-de-la-Zouch: Front-end development using Vue.Js (preferred), React, or Angular TypeScript and JavaScript C# MongoDB and Microsoft SQL .NET 8/9 (APIs and background worker services) Docker / containerisation Cloud deployments (Azure, AWS, etc.) Node.Js Why Apply? Join a rapidly expanding technology business operating at the forefront of transport innovation. Work on impactful, real-world systems Be part of a collaborative, quality-driven engineering culture. Long-term project pipeline offering strong contract stability and extension potential. If you are a Full Stack Developer based in Ashby-de-la-Zouch with strong cloud, .NET, and modern JavaScript framework experience, please send your CV to (url removed) or call Ben on (phone number removed).

Software Engineer - Java /Back End Hybrid - 2 days per week in the office Java, PostgreSQL, API We are looking for an experienced Back End Developer with excellent Java, PostgreSQL and API skills due to software development moving from an outsourced model to in-house. Working alongside the development team you will: Be highly involved with knowledge transfer, including code walkthroughs, pairing sessions, and documentation reviews with the outgoing external team. Gain understanding of the current Java application architecture - service boundaries, dependency injection patterns, build system, and deployment configuration. Design and implement new back-end features, enhancements, and bug fixes in Java, following agreed coding standards and architectural principles. PostgreSQL data model - schema design, migration management (Flyway/Liquibase), indexing strategy, and query optimisation. Design, document, and maintain RESTful and/or GraphQL APIs, ensuring consistency, versioning, and thorough OpenAPI/Swagger documentation. Identify, catalogue, and systematically address technical debt in collaboration with the wider Your background and experience will include Great communication skills, able to contribute to future roadmaps for the products Excellent Java development experience (Java 11+) in a production environment - including Spring Boot, dependency injection, and RESTful API design. PostgreSQL skills: schema design, complex query writing, index optimisation, and migration tooling (Flyway or Liquibase). Experience designing and documenting APIs using OpenAPI/Swagger Proficiency with build tools - Maven or Gradle - and a modern Java development workflow. Understanding of software design principles (SOLID, DRY, Clean Architecture) Familiarity with containerised deployment environments (Docker, Kubernetes) from a developer perspective. Understanding and interest in AI coding assistants - Claude Code, GitHub Copilot, Cursor, or equivalent

Job Title: CRM Full-Stack Software Engineer/Developer Location: Remote (UK) Contract: Full-Time Salary: (Apply online only) per day Overview We are seeking a talented CRM Full-Stack Software Engineer to support the development and scaling of our modern customer relationship management (CRM) platform. This role involves building and maintaining high-performance, secure, and scalable CRM features across both frontend and backend systems. The ideal candidate will have strong experience with TypeScript, Node.js, React, and cloud-based architectures, along with experience working in microservices environments, building APIs, and managing customer-centric data systems. This position is offered as a remote full-time contract with potential for extension depending on performance and project needs. Project Overview You will contribute to the design and development of a scalable CRM platform used to: Manage customer lifecycle and engagement Store and process customer and organisation data Automate workflows and notifications Provide reporting dashboards and analytics Integrate with third-party services and APIs Support internal operational tools for teams The platform is built using modern TypeScript-based full-stack technologies , microservices architecture, and cloud infrastructure. Key Responsibilities Design, develop, and maintain CRM platform features across the full stack Build scalable backend services using Node.js and TypeScript Develop modern user interfaces using React and Next.js Design and maintain relational and document databases (PostgreSQL, MongoDB) Build secure and performant RESTful APIs Implement scalable backend services and microservices Optimise application performance and system reliability Implement automated tests using Jest, Cypress, and TDD practices Collaborate with product managers, designers, QA, and DevOps teams Participate in code reviews and maintain high engineering standards Contribute to CI/CD pipelines and containerised deployments using Docker Support cloud-based infrastructure and distributed services Candidate must provide their own equipment Required Technical Skills Programming Languages JavaScript / TypeScript Experience with Python is beneficial Frontend React Next.js HTML5, CSS3 Building responsive, accessible user interfaces Backend Node.js Express.js API design and microservices architecture

Adword Job Title: Java Software Engineer - Public Wifi Platforms Duration: Initial 3 months with a possibility of extension Location: Ipswich, 3 days onsite a week Job description: About the Role This is an exciting opportunity to join the team that develops and operates the UK's largest Public Wifi network Our client is seeking a self-starting Java Software Engineer to build and support both new and existing applications, and to play a pivotal role in transforming to a new platform You will work within an agile environment, making a real and immediate impact while collaborating closely with network and architecture teams Key Responsibilities Design & Develop: Build new applications and microservices while consistently applying security best practices Maintain & Upgrade: Manage existing Java applications to ensure security compliance, including upgrading PCI-compliant applications that support credit card and ApplePay transactions Testing & CI/CD: Build pipelines, develop automated tests, and utilize test-driven development (TDD) techniques to support application code DevOps & Deployment: Plan and deploy changes to the Public Wifi platform, ensure service availability, monitor systems, and resolve any in-life operational issues or bugs identified during testing Note: On occasion, this will require some overnight working alongside the test teams Agile Collaboration: Take part in daily stand-ups, break down work into manageable user stories, and work alongside architects and systems/server teams to dimension and realize production services Required Skills & Experience We are looking for a passionate individual who enjoys learning, sharing knowledge, and continuously improving on best practices. You must have a strong desire to deliver excellent operational performance along with Strong knowledge of Java 17+ and Springboot 4 frameworks Version control using Git Gitlab Continuous Integration and Pipelines Ansible Automation and Gradle Use of Containers and Containerisation Advantageous / Nice-to-Have Skills Understanding of IP networking and RADIUS Proficiency in using SQL for Database queries Experience with various automation frameworks If you feel that you are the one for this role then apply today at Prasanna com Randstad Technologies is acting as an Employment Business in relation to this vacancy.

Principal Software Engineer - TypeScript, JavaScript, Python, C++, Linux, IoT, K8 Southampton (Onsite) 75,000 + generous pension & benefits Are you an experienced Software Engineer who thrives on solving real-world problems with cutting-edge technology? This is an opportunity to join a talented engineering team building advanced, real-time software systems used in safety-critical environments worldwide. You'll be working at the intersection of enterprise software, IoT, and data-driven decision-making; developing solutions that genuinely make a difference. Why this role is exciting This isn't just another enterprise software role. You'll be working on a sophisticated platform that connects physical devices (IoT) with real-time data processing, delivering actionable insights through modern web applications. The systems you help build are deployed globally and play a vital role in protecting people, infrastructure, and national security. Engineers here consistently highlight exposure to multiple Kubernetes environments (on-prem, cloud, VM-based), working across diverse customer use cases with unique technical challenges, the chance to experiment with new tools, architectures, and AI integrations, and a broad technical landscape spanning microservices, real-time systems, and distributed architectures. About You - What makes you a great fit We're looking for a technical expert who can lead and inspire. Strong background in Object Oriented Programming with knowledge of C++, Python or similar. Recent experience in TypeScript / JavaScript. Deep experience with distributed systems, microservices, and APIs. Solid understanding of connectivity (TCP/IP, device communication, telemetry). Experience working with Linux environments and Kubernetes. Ability to communicate confidently with both engineers and senior stakeholders. Proven experience leading teams including remote and offshore collaboration. A STEM degree is required, reflecting the level of technical depth and problem-solving involved. Tech environment Kubernetes across on-prem, cloud, and hybrid environments. Microservices architecture with real-time data processing. IoT integrations and telemetry pipelines. Modern web applications (TypeScript / JavaScript). CI/CD, DevOps, and infrastructure as code. Emerging work around AI integration and intelligent features. Why join Work on meaningful, real-world problems with global impact. Gain exposure to a broad and evolving tech stack. Be part of a team that values innovation, experimentation, and learning. Play a key role in delivering complex solutions to high-profile customers. Collaborate with a highly skilled, mission-driven engineering team. Additional info Due to the nature of the work, you must be eligible to obtain UK security clearance. Please hit apply to upload your CV or contact (url removed) for more details and a confidential discussion. Spectrum IT Recruitment (South) Limited is acting as an Employment Agency in relation to this vacancy.

AMS is a global workforce solutions partner committed to creating inclusive, dynamic, and future-ready workplaces. We help organisations adapt, grow, and thrive in an ever-evolving world by building, shaping, and optimising diverse talent strategies. Our Contingent Workforce Solutions (CWS) is one of our service offerings. Acting as an extension of their recruitment teams, we connect them with skilled interim and temporary professionals, fostering workplaces where everyone can contribute and succeed. Our client, a major UK retail bank, provides every day banking services to over 17 million retail customers. The banks expertise and services span across Business Services, Corporate banking, Wealth Management, Group Functions, Retail and Investment Banking. On behalf of this organisation, AMS are looking for a Backend Java Engineer for a 6 month contract based in London (2 days per week) with remote working available (hybrid). Purpose of the role: Join one of the core cross functional mission teams to build and develop technology products. What you'll do: Develop clean, elegant, and reusable code that is well tested and easy to maintain and extend. Work with stakeholders across the business to drive the direction of the clients engineering and put the long-term interests of customers at the heart of key decisions. Work collaboratively with the team to resolve technical issues. Support and oversee junior engineers and act as a subject matter expert. The skills you'll need: Solid practical and theoretical knowledge of Java software development. Strong experience of Spring Boot / Micronaut. An understanding of Kubernetes / Docker. Excellent understanding of AWS (deployment / configuration) Message-driven architectures / Kafka / event sourcing. Experience working on a highly secure Application Success delivering within an agile environment. Ability to act as a subject matter expert and communicate with clarity and empathy to both technical and non-technical audiences. Understanding how to translate business objectives into data driven insights. Next steps This client will only accept workers operating via an Umbrella or PAYE engagement model. If you are interested in applying for this position and meet the criteria outlined above, please click the link to apply and we will contact you with an update in due course. AMS, a Recruitment Process Outsourcing Company, may in the delivery of some of its services be deemed to operate as an Employment Agency or an Employment Business

Job Title: IT Support Assistant Location: Acton Salary: Competitive: on application, based on experience and skills Job Type: Full time permanent - This role will suit candidates looking for long-term employment About us: Clearspring is a leading organic food company supplying customers both nationally and internationally. We are looking for an enthusiastic on-site IT support engineer with good communication skills. About the role: This position serves as an Assistant to the IT department. The main duties and specific roles include: 1st Line Office PC Hardware & Software Support Ad Hoc IT Related Project Work Candidates must be prepared to be flexible and work temporarily in other areas of the business when the need arises. About you: Candidates must have the unrestricted right to work in the UK. Training is provided for the right candidate. The following requirements are essential: A minimum of 18 months of working experience with the following requirements Any 1st and 2nd line PC support experience Microsoft Office (especially with Excel) Command/Shell scripting Experience (or an active interest) in any of the following would be ideal: Excel workbook formula optimising and/or macro debugging Script Writing (e.g. JavaScript, Python, PowerShell, etc) SQL query writing Useful skills and experience include: Microsoft Azure Microsoft SharePoint Microsoft Entra ID Oracle NetSuite, particularly SuiteScript Microsoft SQL Server administration and query writing JavaScript Freemarker What we offer: 28 days of holidays (including bank holidays) increasing with service Purchase of Clearspring products at 50% discount from retail price Auto Enrolment Company Pension Plan A bonus may be paid to all team members annually, based on the profitability of the company. Cooking facility to prepare lunches Additional Information: Probation Period: 6 months Starting Date: Immediate Location Note: Fully office-based at our Acton office (W3 7QE) Working Hours: Monday - Friday, 8:30 - 17:30 (1 hour unpaid lunch break) Reporting to: IT manager Please click on the APPLY button to send your CV and Cover Letter for this role. Candidates with experience of; 1st Line Support, 2nd Line Support, IT Desktop Support, ICT Technician, Helpdesk Analyst, Technical Support Assistant, or Junior IT Engineer may also be considered for this role.

Technical Lead Engineer (Full Stack Java / Vue.js) Our client based in Manchester City Centre is currently looking for an experienced Java Technical Lead Engineer to join our growing team, helping to shape and deliver high-quality, end-to-end solutions across their platform. This is a key role where you ll act as the bridge between our Java/Spring backend and Vue.js frontend, taking ownership of feature development from concept through to delivery. You ll play a central part in ensuring seamless integration across the stack, maintaining architectural consistency, and driving best practices across the engineering team. Alongside hands-on development, you ll mentor junior engineers and help elevate the overall technical capability of the team. What you ll be doing: You ll be working across the full stack, leading the design and delivery of new features while ensuring performance, scalability, and reliability. The role requires someone who can take high-level requirements and translate them into clear technical solutions, working closely with both product and engineering teams. Technical environment You ll bring deep expertise in Vue.js and modern frontend development, paired with strong backend experience in Java and the Spring Boot ecosystem (including Data, Security, and MVC). A solid understanding of RESTful API design, SQL/database design, CI/CD pipelines, and AWS is essential. What we re looking for We re looking for someone with 8+ years of experience in software engineering who has a proven track record of leading technical initiatives and mentoring others. You ll be a strong problem-solver and critical thinker, comfortable working from broad requirements and shaping them into robust, scalable solutions. A security-first mindset would be highly beneficial, and any background in cybersecurity would be a significant advantage given the nature of our work. Location & flexibility Preference for candidates based in the North West, but we re open to fully remote candidates. The role includes one week per quarter in our Manchester office to collaborate with the wider team. Benefits: Flexible working Potential share options Interested? Please Click Apply Now! Technical Lead Engineer (Full Stack Java / Vue.js)

Title: Senior Software Developer Location: Caerphilly (1 day a fortnight in office) Salary: 65,000 - 70,000 Overview: Yolk Recruitment are partnered with global B2B SaaS business using technology to drive real-world impact. Their platform helps organisations operate more safely, responsibly, and efficiently, supporting better standards across industries that genuinely matter. They're well-established, scaling internationally, and investing heavily in their technology, with a clear focus on building modern, high-quality software in a forward-thinking environment. We're looking for a Senior Software Developer to join a high-performing engineering squad delivering modern, scalable software solutions. This is a hands-on role with real ownership, working across the full development lifecycle using the latest tools, including AI-assisted development. What you'll be doing: Building high-quality front-end and server-side applications using React Owning features end-to-end, from design through to deployment Working in an Agile squad delivering regular releases Leveraging tools like GitHub Copilot to improve speed and quality Driving best practice across testing, code quality and engineering standards What we're looking for: Strong experience with React and modern JavaScript/TypeScript Solid testing experience (unit, integration, functional) Experience with containerised environments (Docker/Kubernetes) Comfortable owning features and influencing technical direction Exposure to AI-assisted development tools is a strong advantage Why apply: Modern engineering environment Real ownership and technical influence Forward-thinking approach to AI in development Interested? If you're excited by the idea of working on the latest technologiese and taking real ownership of frontend development, please get in touch. We also offer a referral scheme for any candidates who are successfully placed. For more information, contact Dan Newton at Yolk Recruitment .

Senior Java Engineer Modern Stack TDD & CI/CD Complex Systems Remote First (office visit once a month) - you must live within 1hr 30 of South Manchester 60,000 - 70,000 + Bonus + Excellent Benefits my client is not able to provide sponsorship We're working with a long-established tech company who are continuing to modernise a complex platform within a highly regulated domain. They've built a strong engineering culture around Agile and XP practices, and they're now looking for a Senior Java Engineer to join one of their Scrum teams. This is a role for someone who is genuinely hands-on, enjoys solving tricky problems, and cares about building software the right way - clean code, testing, collaboration, and continuous improvement. The Opportunity You'll join a cross-functional team working on large-scale systems that have real-world impact. Engineering standards are taken seriously here, but it's not dogmatic - it's practical, delivery-focused, and built around doing things sustainably. The Senior role is almost entirely hands-on , but they're looking for someone with the experience and maturity to: mentor other engineers lead by example contribute to good engineering practices help the team deliver reliably Tech Stack & Practices The core platform is Java-based, supported by a modern mix of tooling: Java, Spring Boot TDD / automated testing CI/CD and modern delivery pipelines AWS (including serverless approaches in places) Docker, Kubernetes Infrastructure as Code (Terraform, etc.) You don't need to tick every box - strong Java + good engineering habits are the priority. Exposure to AWS and DevOps tooling is a nice bonus. What They're Looking For Strong experience building backend systems with Java & Spring Boot Comfortable working with TDD and modern engineering practices Experience delivering production software in Agile teams Someone who enjoys mentoring and helping others grow Collaborative mindset - pairing, code reviews, shared ownership Bonus points for AWS, Docker/Kubernetes, Terraform, etc. What's In It For You? Remote-first working with minimal office travel Strong salary, bonus and excellent benefits A genuinely good engineering culture (not just "Agile" on paper) Meaningful work, complex systems, and long-term platform thinking Plenty of room to learn and grow Interested? Apply now or get in touch for more info - even if you don't have a CV ready, we're happy to chat. Cathcart Technology is acting as an Employment Agency in relation to this vacancy.

Job Title: Java Fullstack Developer Work Location: Bournemouth, UK (onsite role - 5 days from office) Job Description: Required skills/experience Strong full stack engineering background with deep expertise in Java and Spring/Spring Boot Hands-on experience with cloud technologies (preference for AWS ) Experience using AI-assisted developer tools to improve engineering productivity (preference for agentic AI exposure) Solid data analysis skills and comfort working with data-driven applications Key Responsibilities: Design, develop, and troubleshoot software solutions for complex business and technical problems Apply sound engineering judgment and innovative thinking to deliver solutions beyond standard patterns when needed Contribute to technical architecture and design/build resilient microservices (scalability, reliability, maintainability)

Role: Senior Software Engineer Location: Milton Keynes (Fully office based) Hours: Full Time Monday to Friday, 9:30am 5:30pm (1 hour lunch) Salary: £70,000 Please note: We can only consider applicants who are based within a 20-mile radius of Milton Keynes. An excellent opportunity has now arisen for a Senior Software Engineer to join our client s growing and ambitious team. Who are we? Our client is a scaling SaaS business, operating within a close-knit and collaborative team as they continue to grow. This is a key hire for the business, with plans to bring more of the development function in-house whilst still utilising specialist contractors. This role will play a pivotal part in building out an internal development team, with the opportunity to step into a lead position as the team grows. Importantly, this is not a build from scratch role the platform is already established. The focus will be on maintaining, improving, and optimising existing code, ensuring performance, stability, and scalability as the business evolves. Benefits: Opportunity to be instrumental in building an in-house development function Clear progression into a leadership role Work closely with senior stakeholders and influence technical direction Join a growing business at an exciting stage of its journey Collaborative, supportive team environment Duties of a Senior Software Engineer: Maintain, optimise, and enhance an existing LAMP-based platform (Linux, Apache, MySQL, PHP) Take ownership of full stack development across backend and frontend components Improve system performance, security, and scalability Support and contribute to architectural decisions and long-term technical roadmap Collaborate with product, QA, and implementation teams to deliver high-quality solutions Maintain and optimise MySQL databases, schemas, and queries Contribute to frontend development using modern JavaScript frameworks (React, Vue or similar) Conduct code reviews and implement best practice across development Support production systems, troubleshooting and resolving issues as required Work alongside external contractors, with a view to bringing more capability in-house Mentor and support future team members as the function grows What we would like from you: Proven experience as a Senior or Full Stack Software Engineer within a LAMP environment Strong PHP development skills (Laravel or similar highly desirable) Solid experience with MySQL, including optimisation and performance tuning Experience with modern JavaScript frameworks (React, Vue, Angular etc.) Strong understanding of API design (RESTful or GraphQL) Experience working with Linux environments Familiarity with Git, CI/CD pipelines, and agile methodologies A proactive, solutions-focused mindset with strong problem-solving ability Excellent communication skills, able to work with both technical and non-technical stakeholders A passion for clean, maintainable code and continuous improvement If you are interested in this role, please apply below with your most recent CV. MKTEMP By applying to this job advertisement, you confirm you have read and understood our Data Protection and Privacy statement and give OA Group authorisation to hold you provided data. Thank you for your interest in this vacancy, which is being advertised by OA Group, who are acting as an employment agency / business. Your application will be considered in competition with others and we will contact you within 3 working days.

Software Engineer Java Bristol Hybrid We're supporting one of our best Tech for Impact clients who are making a genuine difference to people's lives and their Engineering team is a big part of how they do it. With around 65 engineers across Bristol and London, they're building smart, scalable software that keeps hundreds of thousands of customers moving, and they are the nicest people ever! The role We're supporting the hire of a mid-level Software Engineer (3-5 years ish experience) to join an established, cross-functional product team. You'll work in a genuinely agile environment, shipping real software, embracing TDD, and caring about the quality of what you build + doing some really cool stuff with AI! Stack: Java, Spring Boot microservices, React, Node.js, PostgreSQL, Kafka, ActiveMQ, Kubernetes, AWS - and they're actively embracing AI tooling in day-to-day engineering. What they're looking for Solid Java background, ideally with Spring Boot or microservices experience Passion for clean code, great testing, and CI/CD best practice A collaborative mindset - the team really does matter here Curiosity and a willingness to keep learning What you'll get Salary up to 70k 35hr week 15% non-contributory pension Private healthcare 27 days holiday + bank holidays Life assurance (4x salary) Discretionary bonus (typically 10-15%) Hybrid working (3 days in office) Genuine investment in your development and wellbeing If you're a good person who writes great code and actually cares about what you build get in touch.

Technical Lead Full Stack Developer (TypeScript, JavaScript, Node) Location: Hybrid working within Hampshire / West Sussex Salary: Competitive + benefits We're working with a fast-growing UK SaaS technology company that builds data-driven digital products used by commercial teams to better understand and engage with their customers. They are now looking for an experienced technical lead full stack developer to play a key role in shaping and delivering their next generation of customer-facing platforms. This is a hands-on technical leadership role where you'll be involved from early design through to production delivery, working with a modern cloud-based stack and deploying to live environments on a daily basis. The Role Lead technical delivery across a high-performing development squad (10+) Contribute to solution design, system architecture and domain modelling Build proof-of-concepts and spike complex or uncertain areas of work Break down requirements into deliverable epics and user stories alongside product and initiative managers Develop and deliver production-ready code across the full stack Ensure high standards of quality, maintainability, performance and security Support and improve live systems once deployed Influence technical direction, tooling and best practice across the wider engineering function Tech Environment You'll work with a modern stack including: Node.js microservices JavaScript & TypeScript Vue.js Redis, SQL Server & Snowflake AWS cloud infrastructure CI/CD pipelines and DevSecOps practices About You Strong full stack development experience (ideally 10+ years) 5+ years of JavaScript and TypeScript experience Solid background in system design and scalable architectures Experience building large, production SaaS platforms A clean-code mindset (SOLID principles, design patterns, testable code) Experience working in mature CI/CD and continuous deployment environments A commercial mindset when designing and delivering software Excellent collaboration skills and confidence working with stakeholders Interest in using AI to accelerate and improve software development A passion for performance, security and engineering best practice Degree in Computer Science or equivalent real-world experience What's On Offer Competitive salary and benefits package Hybrid working (1 day per week in the Fareham office) Opportunity to join a scaling UK SaaS business Strong engineering culture with a focus on quality and continuous improvement Supportive, collaborative working environment Community and charity initiatives, including volunteer days Send your CV across to me on email (url removed) or call (phone number removed) for more information. Spectrum IT Recruitment (South) Limited is acting as an Employment Agency in relation to this vacancy.

Java / Microservices / API design / LLMs / AI / Claude Code / Copilot Role: Senior Software Engineer Company: Financial Services Location: London - Hybrid 3 days per week Salary: up to 120,000 Join a Service Modernisation team driving AI-first software development in financial services. This is a hands-on role modernising high-impact legacy services while building AI-powered engineering workflows. What You'll Do Modernise critical legacy Java services using AI-driven analysis and refactoring Apply migration patterns (e.g. strangler fig) to deliver clean, modern APIs Ship improvements in fast cycles with measurable gains in performance and reliability Build AI-powered tooling, including MCP servers and AI-assisted CI/CD pipelines Demonstrate how AI transforms developer productivity and code quality What We're Looking For 6+ years' backend engineering experience (Java) Proven experience modernising production systems at scale Hands-on use of AI development tools (e.g. Claude Code, GitHub Copilot, LLMs) Experience with MCP, AI automation, or agentic AI systems Strong understanding of microservices and API design Java / Microservices / API design / LLMs / AI / Claude Code / Copilot

Senior Software Engineer Java AI London 500- 600/day About the Role We are seeking an exceptional Senior Software Engineer with expertise in Java and AI to join our client, an established financial services brand, on a 6-month contract Outside IR35. This is a unique opportunity for a Senior Software Engineer to work at the cutting edge of AI-driven development. The Opportunity As a Senior Software Engineer, you'll join a small, innovative team modernising and simplifying critical legacy services using cutting-edge AI tooling. You'll demonstrate what's possible when AI is deeply integrated throughout the software development lifecycle, working with the latest AI technologies including Claude Code, GitHub Copilot, MCP, LLMs. Senior Software Engineer will: Develop and maintain software applications using Java Implement AI solutions to enhance software functionality and accelerate development workflows Collaborate with cross-functional teams to define, design, and ship new features Leverage AI technologies throughout the development lifecycle Participate in code reviews and maintain code quality standards Modernise legacy services using AI-first approaches The ideal experience: 6+ years of experience in software development Strong background in Java programming and modern Java frameworks Proven experience with AI technologies such as: Claude Code, GitHub Copilot, MCP (Model Context Protocol), LLM (Large Language Models) Track record of implementing AI solutions in production environments Experience working in financial services (desirable) Strong collaboration and communication skills What We Offer 500- 600 per day (Outside IR35) 6-month contract with potential for extension Hybrid working in London If you're a Senior Software Engineer with strong Java expertise and proven experience implementing AI technologies, we want to hear from you.

RSMB is seeking an experienced and highly capable Senior Full Stack Engineer to play a central role in the design, development, and evolution of our expanding product suite, including Barb Ads Hub, NMO XCM, and our Data Fusion platform. You will join the team based in London ( Hybrid 2 days per week in the office ) . You will join us on a full-time, permanent basis, and in return, you will receive a competitive salary of up to £85,000 per annum, based on experience. RSMB is a leading company specialising in media measurement solutions. We work with a wide range of clients delivering both long-term contracts like Barb (UK TV audience measurement) and RAJAR (Radio audience measurement), and ad hoc projects. We are proud that we have been a Barb TV audience measurement contractor since 1989 and a RAJAR contractor since 2007. Our team of around 50 people are based in Central London, and we are currently operating hybrid working: splitting the week between home and office working. The Senior Full Stack Engineer role: This role sits within the Development team in the Technology department and is critical to delivering scalable, high-performance, data-driven products. You will work across the full stack, contributing to backend services, APIs, and frontend applications, while collaborating closely with data science, product, and external partners to deliver robust, user-focused solutions. RSMB has been a specialist in data science and audience measurement for almost 40 years, best known for developing industry-standard methodologies and measurement solutions. We are now building on that heritage through a growing suite of platforms designed to connect datasets, power advanced analytics, and deliver actionable insights across organisations. With around 50 staff and a hybrid setup in Central London, we combine deep technical expertise with a collaborative, product-focused mindset. Key responsibilities as our Senior Full Stack Engineer will include: Full Stack Development & System Design Designing and building scalable, maintainable, and high-performance applications across backend and frontend layers. Developing backend services using Python and SQL, with integration into Azure-based infrastructure and Snowflake data platforms. Building intuitive, performant front-end interfaces using React and modern JavaScript/TypeScript frameworks. Contributing to architecture decisions across multiple products, ensuring consistency, scalability, and long-term maintainability. Designing and developing APIs for internal and external consumption. Data Platform & Product Engineering Working on data-intensive products, including Data Fusion and analytics platforms, handling large-scale datasets and complex transformations. Collaborating with data scientists to productionise models, pipelines, and analytical workflows. Designing data models, pipelines, and query strategies to support performant analytics and reporting use cases. Ensuring data quality, integrity, and observability across systems. Delivery & Engineering Excellence Taking ownership of features from design through to deployment and ongoing iteration. Working within agile development processes, contributing to sprint planning, estimation, and continuous improvement. Writing clean, well-tested, and maintainable code, with strong emphasis on automated testing and CI/CD practices. Contributing to engineering standards, code reviews, and best practices across the Development team. Cross-functional Collaboration Working closely with Product Managers, Data Scientists, QA, and Technical Leadership to deliver high-quality products. Collaborating with external partners, clients, and industry stakeholders where required. Translating complex data and technical requirements into scalable engineering solutions. AI-Enabled Development Practices Effectively integrating AI-assisted development tools (e.g., code generation, testing, debugging, documentation) into day-to-day workflows. Applying critical judgement to ensure correctness, security, and maintainability of AI-assisted outputs. Continuously evaluating emerging AI tools and practices to improve engineering efficiency and quality What we are looking for in our Senior Full Stack Engineer: Proven experience (typically 5 10+ years) in full stack software engineering, ideally within data heavy, analytics, or SaaS environments Strong backend development experience with Python and SQL (relational and/or analytical databases). Experience working with cloud platforms, particularly Azure. Experience working with modern data platforms such as Snowflake (or similar analytical warehouses). Experience with .NET is desirable. Strong frontend development experience using React and modern JavaScript/TypeScript. Experience designing and building APIs and distributed systems. Solid understanding of data engineering concepts, including data modelling, ETL/ELT pipelines, and performance optimisation. Experience with CI/CD, containerised systems, and modern deployment workflows. Familiarity with working alongside data science teams and deploying data-driven products. Experience working in agile environments (Scrum/Kanban) with strong ownership of delivery. Strong problem-solving skills and ability to work with complex, data-rich systems. Excellent communication skills and ability to collaborate across technical and non-technical stakeholders. What you ll get in return as our Senior Full Stack Engineer: A central role in building industry-leading platforms such as Barb Ads Hub, NMO XCM, and Data Fusion. Opportunity to work on complex, high-impact data and analytics products used across the media ecosystem. Exposure to cutting-edge work in data integration, analytics, and measurement. Hybrid working model (2 days per week in our Central London office). A collaborative environment with strong engineering and data science expertise. 25 days holiday rising to 30, private medical insurance, pension, season ticket loan and more. Ready to help shape the next generation of RSMB s product portfolio? If you feel you have the skills and experience to become a Senior Full Stack Engineer in this exciting role, then please click apply now We'd love to hear from you! Please note that applicants must have the right to work in the UK. We are not accepting unsolicited agency applications for this role.