31 jobs found

Backend Software Engineer / Developer (C++ Rust Low Latency Trading) London / WFH to £180k+ Opportunity to join a hugely profitable High Frequency Trading firm that specialise in crypto markets and earning substantial bonuses in a senior, hands-on Backend Software Engineer role, working with Rust. As a Backend Software Engineer you will design and develop high throughput backend services for microse click apply for full job details

Head of Engineering / System Development Manager - up to 70k base with great benefits Remote working set up with occasional travel to Head Office in Glasgow We are looking for a strategic, hands-on Head of Engineering to lead and scale our software engineering function. This senior leadership role will focus heavily on software engineering excellence across full-stack development, system design, architecture, and software delivery processes - while also overseeing our data engineering, cloud infrastructure, and security functions. You will be responsible for setting the technical direction, improving engineering velocity and quality, establishing modern practices across the SDLC, and growing a high-performing team capable of building and maintaining complex, scalable systems. You must have a proven track record of delivering enterprise-grade applications and services, with deep experience in both legacy and modern technology stacks. Key Responsibilities Software Engineering Leadership Set and own the technical roadmap, ensuring architectural scalability, security, performance, and maintainability of all software systems. Oversee full lifecycle software development - from requirements, technical design, development, testing, deployment, to post-release monitoring and maintenance. Establish, enforce, and continuously evolve software engineering best practices (e.g., SOLID principles, domain-driven design, clean architecture, modular monoliths vs microservices). Drive consistency in coding standards, code review rigor, and software craftsmanship. Lead critical system architecture decisions, including technology stack evolution, refactoring legacy components, and designing future-state systems. Ensure integration patterns and service contracts across internal and external APIs are robust, secure, and scalable. System Integration & Platform Ownership Oversee integration between business systems using APIs, middleware, and ETL pipelines, including Salesforce, Power Platform (PowerApps, PowerAutomate, LogicApps), SharePoint, and custom web applications. Lead optimization and governance around API design (RESTful services, rate limiting, versioning, monitoring, etc.). Ensure high data consistency, operational integrity, and well-documented interface contracts between services. Software Delivery, CI/CD & DevOps Define and implement scalable CI/CD pipelines using modern DevOps tooling, including automated build, test, deploy, and rollback strategies. Champion continuous delivery practices with robust unit, integration, contract, and end-to-end testing frameworks. Drive metrics around deployment frequency, lead time, change failure rate, and mean time to recovery (MTTR). Collaborate with cloud engineers to align infrastructure strategy with software delivery needs. Cloud-Native Engineering (Azure) Lead the development of scalable cloud-native applications and services using Microsoft Azure , including Azure Functions, LogicApps, and container-based services. Drive cost-effective use of cloud services and performance optimization across environments. Ensure cloud architectures support observability, fault tolerance, and high availability. Data Engineering & Intelligent Systems Guide the engineering team in data modelling, data access patterns, and efficient use of databases (MSSQL, PostgreSQL, MySQL). Work with data engineers to enable secure, efficient data movement between systems, including real-time and batch processing pipelines. Support analytics and reporting needs through the engineering of clean, reliable data sources and APIs. Security Engineering & Governance Partner with security engineers to integrate security throughout the software lifecycle (shift-left security, secure coding, threat modelling). Own the implementation of secure authentication/authorization practices, audit logging, encryption at rest/in transit, and other application security standards. Ensure software and infrastructure meet organizational security and compliance requirements (e.g., GDPR, ISO 27001, OWASP Top 10). Team Management & Culture Build and scale high-performance engineering teams, including backend, frontend, full-stack, data, and security engineers. Define and track KPIs for engineering productivity, quality, and performance. Promote an engineering culture grounded in ownership, collaboration, innovation, and continuous learning. Provide technical mentoring and career growth paths for engineers at all levels. Qualifications Education Bachelor's or Master's degree in Computer Science, Software Engineering, or equivalent practical experience. Experience Significant experience of software engineering with some previous exposure in an engineering leadership role. Proven experience designing and delivering complex, scalable, multi-tier web applications. Strong history of transforming monoliths to modular or microservice architectures. Hands-on experience with modern CI/CD pipelines, test automation, and infrastructure-as-code. Experience managing and integrating with third-party systems and platforms such as Salesforce , Azure , SharePoint , and Power Platform . Experience working with secure, data-driven applications and distributed systems. Technical Skills Frontend : HTML, CSS, JavaScript (Node.js, browser frameworks) Backend : PHP (Symfony, Smarty), C# (.NET Core), Azure Functions (Node.js / PowerShell), PowerShell Database : MSSQL, PostgreSQL (including JSON), MySQL/MariaDB Integration : REST APIs, ETL, Azure Data Factory DevOps/Infra : CI/CD pipelines (e.g., GitHub Actions, Azure DevOps), containerization, Azure PaaS Security : Secure development lifecycle, OWASP, authentication/authorization protocols Leadership Attributes Technically credible leader with the ability to deep-dive on architecture and code when necessary. Strong decision-making skills backed by analytical rigor and a data-driven mindset. Passionate about growing talent and building healthy, inclusive engineering teams. Adept at working across stakeholders in product, business, security, and operations to deliver cross-functional value. Highly effective communicator and change agent capable of aligning engineering initiatives with business strategy. We are looking for an experienced Systems Development Manager looking to take the next step into a Head of Engineering role with a thriving organisation Please reach out with your latest CV to have an informal chat about this role. The client is keen to start interviewing next week for interested candidates.

Senior Software Engineer - Azure Platforms Location: Warwick (Hybrid working model, monthly travel required, occasional travel to London) About Us Join a leading energy network operator that keeps society connected and drives the transition to a sustainable power future. You'll be part of a team that transforms the energy landscape, integrates renewable solutions, and ensures customers are never left in the dark. As a Senior Software Engineer - Azure Platforms, you will sit across all engineering teams, acting as a key technical leader with an architectural mindset. You'll focus on platform concerns, primarily cloud infrastructure on Azure, before contributing to broader product development and enabling works. Working directly with senior leadership, you'll ensure solutions are scalable, reliable, and aligned with organisational engineering and architecture standards. What You'll Do Act across all engineering teams, addressing platform-level concerns with a focus on Azure cloud infrastructure. Bring an architectural mindset to design decisions, ensuring long-term scalability, maintainability, and alignment with strategic objectives. Design, implement, and maintain scalable, high-performance C#/.NET Core backend systems. Support product and enabling workstreams, ensuring seamless integration and delivery across teams. Automate provisioning, configuration, and deployment processes using Terraform, CI/CD pipelines, and GitHub Actions/Runners. Drive engineering standards and best practices, including code reviews and quality assurance activities. Guide teams in Agile/Lean software development practices and contribute to strategic architectural decisions. Collaborate effectively with product owners, designers, technical leads, and other stakeholders to deliver high-quality software solutions. Ensure security, compliance, and observability standards are embedded into solutions. About You Deep expertise in C#/.NET Core, microservices, event-driven architectures, and RESTful APIs. Extensive experience with Azure Cloud Services, including Entra, AppInsights, and identity/authentication frameworks. Hands-on experience with CI/CD pipelines, DevOps practices, Infrastructure as Code (IaC), containerisation (Docker), and orchestration. Demonstrated ability to apply an architectural mindset, influencing design decisions across platform and product teams. Test-first mindset with expertise in unit/integration/E2E testing using frameworks like XUnit, Playwright, or PACT. Familiarity with security frameworks and compliance standards. Strong analytical and problem-solving skills with the ability to troubleshoot complex issues quickly. Excellent communication skills and the ability to collaborate across teams, explain technical concepts clearly, and thrive in a fast-paced environment. Experience in start-up, scale-up, or high-growth environments is highly desirable. Why Work with Us Warwick-based hybrid working model with monthly travel and occasional visits to London. Opportunity to work across platform, product, and enabling workstreams on national-scale infrastructure projects. Be part of a collaborative, innovative, and technically ambitious team shaping the future of energy technology. We use generative AI tools to support our candidate screening process. This helps us ensure a fair, consistent, and efficient experience for all applicants. Rest assured, all final decisions are made by our hiring team, and your application will be reviewed with care and attention. Pontoon is an employment consultancy. We put expertise, energy, and passion into improving everyone's chance of being part of the workplace. We respect and appreciate people of all ethnicities, generations, religious beliefs, sexual orientations, gender identities, and more. We do this by showcasing their talents, skills, and unique experience in an all-encompassing environment that helps them thrive. Candidates will ideally show evidence of the above in their CV to be considered. Please be advised if you haven't heard from us within 48 hours then unfortunately your application has not been successful on this occasion, we may however keep your details on file for any suitable future vacancies and contact you accordingly. Pontoon is an employment consultancy and operates as an equal opportunity's employer. Please email me

Fullstack Software Engineer Tech for Impact Location: Bristol / Hybrid Level: Software Engineer / Senior Software Engineer Salary: 50k- 84k + equity + benefits The opportunity These lot have been my client for over 7 years, and they get better every day! They are on a mission to equip investors with the tools to steward their capital responsibly. What does that mean? - Millions of people contribute towards our investment system yet most people have no control or visibility about where their money is going and therefore no choice on the impact they can make with their money. My friends have built an incredible platform which is changing the way voting is done, and done for good.They're now scaling both their core platform and a brand-new AI product, which is a game changer! We are hiring for 3-4 roles for the team. A fullstack engineer, 2 backend software engineers and a platform focused engineer. As a Software Engineer , you'll focus on building robust, scalable backend systems and APIs that support voting workflows, reporting, and new AI-driven research capabilities. What you'll be doing Designing and building scalable backend services and APIs Working on workflow systems that support large-scale voting operations Prototyping and productionising AI-enabled features Refactoring and modernising legacy services Collaborating closely with engineers, product and operations What you'll bring Strong software engineering fundamentals Experience writing production code in Go, Python or TypeScript Experience with RESTful APIs (gRPC a bonus) Familiarity with SQL and/or NoSQL databases A pragmatic, hands-on approach to solving complex problems Why them: Real ownership over meaningful systems Engineers close to production and decision-making A culture that values learning, feedback and continuous improvement The chance to shape how capital markets behave - for the better 5 Glassdoor reviews Process and Benefits: 3 stage interview process (inc tech test) Salary 50 - 85,000 DOE + Shares Enhanced Mat and Pat leave Wellness Budget Prv health care Flexible hours & working They encourage 1 day per week in the Bristol office. The team commit to getting together at least once a month for a company wide get together

Senior Software Engineer Tech for Impact Location: Bristol / Hybrid Level: Software Engineer / Senior Software Engineer Salary: 50k- 84k + equity + benefits The opportunity These lot have been my client for over 7 years, and they get better every day! They are on a mission to equip investors with the tools to steward their capital responsibly. What does that mean? - Millions of people contribute towards our investment system yet most people have no control or visibility about where their money is going and therefore no choice on the impact they can make with their money. My friends have built an incredible platform which is changing the way voting is done, and done for good.They're now scaling both their core platform and a brand-new AI product, which is a game changer! We are hiring for 3-4 roles for the team. A fullstack engineer, 2 backend software engineers and a platform focused engineer. As a Software Engineer , you'll focus on building robust, scalable backend systems and APIs that support voting workflows, reporting, and new AI-driven research capabilities. What you'll be doing Designing and building scalable backend services and APIs Working on workflow systems that support large-scale voting operations Prototyping and productionising AI-enabled features Refactoring and modernising legacy services Collaborating closely with engineers, product and operations What you'll bring Strong software engineering fundamentals Experience writing production code in Go, Python or TypeScript Experience with RESTful APIs (gRPC a bonus) Familiarity with SQL and/or NoSQL databases A pragmatic, hands-on approach to solving complex problems Why them: Real ownership over meaningful systems Engineers close to production and decision-making A culture that values learning, feedback and continuous improvement The chance to shape how capital markets behave - for the better 5 Glassdoor reviews Process and Benefits: 3 stage interview process (inc tech test) Salary 50 - 85,000 DOE + Shares Enhanced Mat and Pat leave Wellness Budget Prv health care Flexible hours & working They encourage 1 day per week in the Bristol office. The team commit to getting together at least once a month for a company wide get together

Full Stack Software Engineer London 80,000 - 150,000 Python React Location: London-based (hybrid) Salary: 80,000 - 150,000 + equity Tech Stack: Backend: Python (Flask or FastAPI or Django - ideally a blend of 2) Frontend: React, TypeScript Cloud Systems: GCP or AWS Are you a software engineer who enjoys shipping real products, solving tangible customer problems, and seeing your work in production quickly? We are working with a Series A AI technology company building automation software that sits directly in the operational core of key businesses. This is not experimental AI. This is production critical software used daily by hundreds of customers. This is a hands on individual contributor role suited to engineers who want ownership, pace, and impact without layers of process getting in the way. What you will be doing: Designing, building, and maintaining backend services and APIs using Flask & FastAPI Building and evolving user facing web components using React/TypeScript Integrating third party services and AI models into production workflows Investigating production issues and contributing to root cause analysis Collaborating closely with product, operations, and non technical stakeholders Participating in code reviews and shaping engineering standards What they are looking for: Someone who genuinely enjoys building and shipping software frequently Strong problem solving ability with a pragmatic engineering mindset Comfort owning features end to end from build through deployment A bias to action while still caring about scalability and reliability Ability to work across the stack or depth in one area with curiosity in others Experience with Python based backend systems and modern frontend frameworks They value engineers who focus on outcomes over perfection, who simplify rather than over engineer, and who take responsibility rather than waiting for instruction. What you can expect: Meaningful equity London based role (hybrid) with regular in person collaboration & opportunities for international travel Extensive company benefits This role will suit engineers who want to work close to the product, close to customers, and close to real world impact. If you're looking for ownership, pace, and meaningful software problems, then get in touch at .

Senior Software Developer (PHP & JavaScript) Bristol, hybrid, typically 1 day a week in the office 50,000 to 60,000 + 28 days holiday + bank holidays, PMI, pension, social events If you like the idea of owning proper, business critical software rather than being one tiny cog in a huge engineering machine, this is one to look at. This role is all about building the internal systems that sit at the heart of a fast moving international trading business, where every feature you ship shows up directly in how the company runs and makes money. You will be joining a small, profitable B2B luxury fashion distribution business that partners with global brands to turn problematic wholesale into a controlled, profitable channel. It is a low ego, close knit team across sales, operations and IT, with in house development treated as a strategic function, not a support service. They care a lot more about team fit, attitude and communication than ticking every single box on a tech checklist. It is a friendly place where everyone gets on, with a grown up, flexible approach to work. The IT team is typically in the Bristol office one day a week, with the rest of the time spent working remotely. The role sits in a small development team working on their own internal platform rather than off the shelf tools. You will spend most of your time on the backend, building and evolving the core systems that power operations, reporting, analytics and their B2B customer portal, while also being comfortable in a modern JavaScript front end. You will work closely with the Head of Development on solution design and architectural decisions, and with end users across the business to make sure what you build actually solves real problems in a pragmatic way. The ideal candidate will be a Full Stack Software Developer with strong PHP (Symfony or Laravel) and JavaScript skills (Vue or React). This is a fantastic opportunity for a Senior Software Developer to join a small, flexible and talented team where your work is central to how the business runs, where you will have proper ownership without the politics of a huge organisation, and be treated well! The Role Design, build and maintain backend heavy features across internal systems that support operations, reporting, analytics and the B2B portal Work closely with the Head of Development to shape solution design, architecture and technical direction Write clean, testable, SOLID compliant PHP using Symfony, with strong unit and functional test coverage as part of everyday development Contribute to and improve shared standards, code reviews, CI and deployment practices, including the growing use of AI tools in the workflow Work with business users across sales and operations to understand requirements, refine ideas and turn them into pragmatic, maintainable solutions Help evolve the platform and infrastructure, using technologies such as PostgreSQL, Clickhouse, Vue.js, AWS and Docker The Person Strong commercial experience with PHP in a modern framework such as Symfony or Laravel in an enterprise or business critical environment Solid understanding of object oriented design, SOLID principles and how to structure systems for long term maintainability Experience building and testing API driven backend systems, with unit and functional tests as a normal part of your work Comfortable working with a modern JavaScript framework such as Vue or React as part of a full stack workflow Happy working in a small, collaborative team where you take real ownership, communicate clearly and enjoy being close to the commercial side of the business Nice to have experience with PostgreSQL or other relational databases, Dockerised applications, AWS hosted environments and using AI tools to improve productivity or code quality Rise Technical Recruitment Ltd acts an employment agency for permanent roles and an employment business for temporary roles. The salary advertised is the bracket available for this position. The actual salary paid will be dependent on your level of experience, qualifications and skill set and will be decided by our client, the employer. Rise are not responsible or liable for any hiring decisions made by the end client. We are an equal opportunities company and welcome applications from all suitable candidates.

Senior Software Engineer - Backend Leeds - 2x a week Salary: Up to £70k D.O.E + Benefits Fruition IT are working with a well-established tech-first business who are embarking on a complete technical transformation. This client is looking to bring in a Backend Staff Software Engineer to shape the architecture and technical direction of new projects alongside being deeply hands on click apply for full job details

Senior Backend Engineer London (Occasional Travel required) Salary: £75,000 - £95,000 An established, global technology business within the hospitality-tech industry is seeking a talented Backend Software Engineer to help build and scale cutting-edge digital solutions click apply for full job details

Senior Backend Software Engineer - Cloud-Native Platform Up to £85,000 Hybrid (Nottinghamshire HQ) I'm delighted to be once again recruiting on behalf of my technology-led client that's building a modern, cloud-native platform from the ground up. They're looking for a Senior Backend Software Engineer to join a high-performing team focused on delivering scalable, secure, and high-quality service click apply for full job details

Senior Java Developer - AI first - sought by trading company based in London - Contract (OUTSIDE IR35 - Remote option available for outstanding candidates) What We're Looking For Backend Engineering Expertise 8+ years of software engineering experience with strong Java backend skills click apply for full job details

Senior Scala Engineer £60,000 - £85,000 + bonus + benefits Permanent Hybrid & Remote Opportunities Available (2 days/month in West Midlands) We're hiring a Senior Scala Engineer to build and evolve high-scale backend services in a modern engineering environment. This is a hands-on role with real ownership, strong technical standards and the chance to influence how systems are designed, built and run. What you'll do: Build and maintain Scala services using functional programming principles Design and optimise RESTful APIs and microservices Write high-quality, well-tested code (TDD/BDD) Work with PostgreSQL and/or NoSQL databases Contribute to CI/CD pipelines, cloud infrastructure, and containerised deployments Mentor other engineers and shape technical best practices What we're looking for: Strong commercial experience with Scala Solid functional programming background Experience with REST APIs, JSON (Play JSON or Circe) Database experience (PostgreSQL and/or NoSQL) Testing experience (ScalaTest, Specs2, Mockito) Familiarity with CI/CD, Docker/Kubernetes, and cloud platforms This role requires eligibility for UK Security Check (SC) clearance. Therefore, you must: Have lived continuously in the UK for the last 5+ years Have the correct right to work in the UK Have not had any trips out of the UK in the last 5 years which have lasted 28 consecutive days or more Be willing to undergo a thorough background check as part of the vetting process. (Applications from candidates not eligible for SC clearance cannot be considered). So, if you're an experienced software engineer with strong Scala experience, are based in a commutable distance to the West Midlands and you would be eligible for SC clearance, please apply now to be considered!

Prestigious opportunity for a Senior Applications Engineer with a Global Investment Management company expanding its new offices in Manchester.We are seeking a Senior Application Engineer (Backend cloud-based application development), with deep technical expertise and thought leadership. You will drive strategy for your area of expertise across teams and foster a developer community within your domain. The role involves mentoring junior staff, ensuring high-quality deliverables, promoting best practices like TDD and BDD, and leading engineering practices across the SDLC. As a Senior Applications Engineer you will be responsible for:- Providing technical expertise in Backend Development, supporting the team with effective solutions and practical insights Participating in all phases of the Software Development Life Cycle (SDLC), including requirements gathering, development, deployment, and ongoing maintenance Contributing new ideas, tools, and methodologies to help foster a culture of continuous improvement and innovation within the team Sharing knowledge and mentoring peers and junior engineers, supporting their growth and skills development Collaborating with technical leads, IT teams, and business stakeholders to understand project requirements, implications, and dependencies Reviewing and providing feedback on technical documentation, suggesting improvements where appropriate Promoting the best development approaches such as Test-Driven Development (TDD) and Behaviour-Driven Development (BDD) to deliver high-quality, maintainable code If you possess a combination of some of the following skills, then LETS TALK! Experience in Java development Backend cloud-based application development Understanding of API design for mobile applications with event-driven architecture Strong analysis and problem-solving skills Preferred - Experience of building distributed scalable microservices using Java/Kotlin, Spring Boot, OAuth 2.0, Secure API design A working understanding of technologies/areas: AWS, API Design, Automation testing In return, you will be rewarded with a highly competitive benefits package including a bonus and ongoing career development and training. What you need to do now If you're interested in this role, click 'apply now' to forward an up-to-date copy of your CV, or call us now. If this job isn't quite right for you, but you are looking for a new position, please contact us for a confidential discussion about your career. Hays Specialist Recruitment 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 the T&C's, Privacy Policy and Disclaimers which can be found at (url removed)

Our client is building a fast growing, marketing platform and looking for a Senior Solutions Architect / Backend Developer to play a pivotal role in shaping the architecture of their next-generation platform. You ll design, build, and scale mission-critical systems, working closely with experienced backend engineers while owning and driving a long-term technology roadmap. This is a high-impact role where you ll influence cloud, enterprise, and solution architecture and lead decisions across AWS, cloud-native services, DevOps, and large-scale integrations particularly within affiliate marketing platforms. Responsibilities: Create and maintain comprehensive technical documentation, including API guides, integration documentation, and best practices. Provide architectural leadership with a strong focus on AWS-based solutions. Lead and support affiliate marketing platform integrations. Collaborate effectively across teams, fostering strong interpersonal communication and teamwork. Stay current with industry trends, particularly in .NET and AWS ecosystems. Design and implement cloud-native architectures, REST APIs, and microservices. Work with Spring Boot/Framework, .NET/.NET Core, GitHub, Docker, BPM, SQL, Oracle, NoSQL, AMQP/Kafka messaging, and related technologies. Mentor developers, conduct code reviews, and promote continuous improvement. Lead technical architecture decisions. Requirements: Bachelor s degree in Computer Science or related field. Extensive experience as a Solutions Architect, ideally with strong AWS expertise. 4+ years of production experience with TypeScript (Node.js) or Python. Practical experience building serverless applications with AWS Lambda. Strong knowledge of AWS services Experience designing RESTful APIs and integrating external services. Familiarity with event-driven architectures and asynchronous workflows. Strong foundation in software engineering: testing, version control, CI/CD, and code quality. Excellent communication skills with the ability to engage and contribute in collaborative discussions. Proven ability to diagnose and solve complex technical issues. What they offer: A small, highly capable team building innovative products Genuine learning, development, and ownership opportunities Pension, on-site parking, and a supportive, collaborative culture If you enjoy owning architecture, solving complex problems, and building platforms that scale globally, this is an opportunity to make a real impact. Hybrid working Please apply for further details

We're looking for a Senior-level Software Engineer with strong JavaScript/TypeScript skills and experience across modern web stacks. You'll be instrumental in our transition away from Drupal as we modernise and scale our platform. Tech Stack: At least 4 years commercial experience with JavaScript or TypeScript and Node Exposure of Laravel and/or Python (Django or Flask a plus) Familiarity with Drupal and some knowledge of modern front-end frameworks (React, Vue, etc.) What You'll Do: Build scalable applications using modern frameworks and clean architecture Contribute to backend services and APIs (Python or Laravel-based) Help re-platform and migrate to a modern stack Collaborate cross-functionally with UX, Product, and DevOps What We Offer: A supportive environment that encourages professional growth and continuous learning. An inclusive, collaborative culture within one of the UK's leading business services providers. A competitive salary and benefits package. 49904MSR4 INDLON Portfolio Payroll Ltd is acting as an Employment Agency in relation to this vacancy.

Location: Saffron Walden Job Type: Permanent Hours: Monday-Friday, 9.00-17.30 Salary: Competitive Job Reference: 35947 Polytec are seeking a Senior RF Data Scientist / Research Engineer to develop signal-processing and machine learning solutions using RF data from software-defined radios for our Saffron Walden based client. This hands-on role sits at the intersection of RF hardware, DSP and applied ML in a fast-paced RandD environment. Responsibilities: Analyse and characterise IQ data from SDR platforms Build RF signal analysis and visualisation tools Design RF data-processing pipelines accounting for real-world hardware effects Develop ML and statistical models for RF classification and detection Prototype batch and real-time processing systems in Python and integrate with GNU Radio or C++ backends Support RF data collection and over-the-air testing Requirements: Strong Python skills for data analysis and prototyping Solid understanding of digital signal processing fundamentals Experience with SDR frameworks such as GNU Radio or similar Understanding of RF hardware chains and their impact on baseband data Experience analysing wireless protocols or physical-layer behaviour Comfortable working in iterative, experimental RandD environments Desirable: Hands-on SDR and RF lab experience Exposure to techniques such as direction finding, Doppler, or beamforming Experience beyond Python (e.g. C++, MATLAB) Knowledge of RF circuits or antenna systems Publications, patents, or open-source contributions Please contact us as soon as possible for more details or apply below!

Role: React Native Developer Location: Knutsford (Hybrid) Duration: 6 Months Day rate: 430 Umbrella Only We are seeking an experienced Senior Software Engineer to join a delivery-focused engineering team building modern, scalable applications using React Native (Web) and Java . This is a hands-on role requiring strong full-stack development capability, disciplined engineering practices, and experience working in Agile environments. The role involves contributing across the full software development lifecycle, from design and development through testing, deployment, and ongoing support, with a strong emphasis on code quality, security, and automation. Key Responsibilities Design, develop, and maintain React Native (Web) applications with a focus on performance, reliability, and maintainability Build and support Java-based backend services for enterprise-scale applications Design and implement RESTful APIs , including documentation using OpenAPI Specification (OAS) / YAML Apply Test-Driven Development (TDD) principles across frontend and backend components Write and maintain unit tests to ensure high levels of code quality and coverage Contribute to and support CI/CD pipelines using GitLab Ensure code quality, maintainability, and security using tools such as SonarQube and Veracode Work collaboratively within Agile teams , participating in ceremonies such as sprint planning, stand-ups, and retrospectives Maintain clear and accurate technical documentation using Confluence Track and manage development work using Jira Required Skills & Experience 5+ years' experience developing React Native (Web) applications in a production environment 5+ years' experience with Java development Strong experience in RESTful API design and development Hands-on experience with TDD and automated testing practices Solid experience with GitLab , including CI/CD pipelines Experience producing and maintaining OpenAPI (OAS) / YAML specifications Strong understanding of unit testing frameworks and best practices Proven experience working in Agile / Scrum delivery environments