systems using Kafka Streams , Akka , Eclipse Vert.x , or Apache Flink . Utilize multithreading , concurrency models , and Executor Services to optimize system performance and throughput. Write clean, efficient, and maintainable code using functional programming paradigms in Java. Follow and promote SOLID principles , unit testing , and other modern software development best practices. Collaborate closely with quants, traders, and other developers in … a fast-paced environment. Maintain a high level of codequality and technical standards under tight timelines. Key Requirements: 6+ years of hands-on Java development experience, preferably in front office systems (e.g., trading platforms, pricing engines, market data systems). Proven expertise in reactive programming (Kafka Streams, Akka, Vert.x, Flink). Solid understanding of multithreading and More ❯
closely with back-end engineers, traders, and product teams Designing and refining complex front-end architectures for real-time data visualization Working in a culture where engineering excellence and codequality are non-negotiable Tech Stack: Languages: TypeScript, JavaScript (ES6+) Frameworks: React, Redux (or similar) Tooling: Webpack, Babel, Jest, ESLint, Git Bonus: Experience with WebSockets, performance profiling … TypeScript Deep understanding of front-end architecture, performance tuning, and scalable component design Experience in fast-paced environments (finance, trading, gaming, or top-tier tech) Passion for clean, maintainable code and UI craftsmanship Why Join? Collaborate with some of the sharpest minds in trading and technology Contribute to software that drives real-time trading decisions Work in a flat More ❯
closely with back-end engineers, traders, and product teams Designing and refining complex front-end architectures for real-time data visualization Working in a culture where engineering excellence and codequality are non-negotiable Tech Stack: Languages: TypeScript, JavaScript (ES6+) Frameworks: React, Redux (or similar) Tooling: Webpack, Babel, Jest, ESLint, Git Bonus: Experience with WebSockets, performance profiling … TypeScript Deep understanding of front-end architecture, performance tuning, and scalable component design Experience in fast-paced environments (finance, trading, gaming, or top-tier tech) Passion for clean, maintainable code and UI craftsmanship Why Join? Collaborate with some of the sharpest minds in trading and technology Contribute to software that drives real-time trading decisions Work in a flat More ❯
closely with back-end engineers, traders, and product teams Designing and refining complex front-end architectures for real-time data visualization Working in a culture where engineering excellence and codequality are non-negotiable Tech Stack: Languages: TypeScript, JavaScript (ES6+) Frameworks: React, Redux (or similar) Tooling: Webpack, Babel, Jest, ESLint, Git Bonus: Experience with WebSockets, performance profiling … TypeScript Deep understanding of front-end architecture, performance tuning, and scalable component design Experience in fast-paced environments (finance, trading, gaming, or top-tier tech) Passion for clean, maintainable code and UI craftsmanship Why Join? Collaborate with some of the sharpest minds in trading and technology Contribute to software that drives real-time trading decisions Work in a flat More ❯
as Microsoft Semantic Kernel and Agent Framework Integrate with leading industry platforms , including opportunities to work with APIs such as Acturis Join a forward-thinking team that values high codequality, automation, and innovation About You You are an experienced backend engineer with a passion for building clean, scalable, and maintainable systems. You are comfortable working in … APIs using ASP.NET Core Work with Entity Framework for data access and database migrations Design event-driven workflows using Azure Service Bus and Dapr Write well-tested, production-ready code with a strong TDD mindset Contribute to a collaborative team environment focused on continuous improvement Explore and potentially implement newer Microsoft frameworks such as Semantic Kernel Our Wishlist If More ❯
Cambridge, Cambridgeshire, England, United Kingdom Hybrid / WFH Options
Oscar Technology
ll Be Doing Developing and maintaining scalable applications using PHP , JavaScript , and React . Working on new product features that directly impact healthcare professionals and patients. Writing clean, maintainable code and contributing to architectural discussions. Collaborating with other developers, product owners, and stakeholders to deliver well-tested, secure solutions. Deploying and maintaining systems on AWS , with a focus on … is your chance to work on technology that makes a difference - not just to users, but to lives. You'll be joining a friendly, forward-thinking MedTech company where codequality, collaboration, and purpose go hand in hand. Apply today to find out more and take the next step in your development career. Oscar Associates (UK) Limited More ❯
Cambridge, Cambridgeshire, East Anglia, United Kingdom Hybrid / WFH Options
Oscar Associates (UK) Limited
ll Be Doing Developing and maintaining scalable applications using PHP , JavaScript , and React . Working on new product features that directly impact healthcare professionals and patients. Writing clean, maintainable code and contributing to architectural discussions. Collaborating with other developers, product owners, and stakeholders to deliver well-tested, secure solutions. Deploying and maintaining systems on AWS , with a focus on … is your chance to work on technology that makes a difference - not just to users, but to lives. You'll be joining a friendly, forward-thinking MedTech company where codequality, collaboration, and purpose go hand in hand. Apply today to find out more and take the next step in your development career. Oscar Associates (UK) Limited More ❯
SR2 | Socially Responsible Recruitment | Certified B Corporation™
features from the ground up. What you’ll do: Build and own features across React + Python Influence architecture and product direction Keep production rock-solid and performant Drive codequality and collaborate with UX/UI designers What we’re looking for: 6+ years’ full-stack experience Strong in React, TypeScript, and Python (or PHP) A … equity Hybrid (London-based, Bracknell HQ) Real progression toward Lead/Head of Engineering as the business scales If you’re looking for a high-impact role where your code truly shapes the product — hit apply or drop me a message for a quick chat. More ❯
SR2 | Socially Responsible Recruitment | Certified B Corporation™
features from the ground up. What you’ll do: Build and own features across React + Python Influence architecture and product direction Keep production rock-solid and performant Drive codequality and collaborate with UX/UI designers What we’re looking for: 6+ years’ full-stack experience Strong in React, TypeScript, and Python (or PHP) A … equity Hybrid (London-based, Bracknell HQ) Real progression toward Lead/Head of Engineering as the business scales If you’re looking for a high-impact role where your code truly shapes the product — hit apply or drop me a message for a quick chat. More ❯
possible renewals About the Role We re looking for Senior Software Engineers to join our client's dynamic Engineering team and play a key role in building high-quality, scalable software solutions. As a senior member of the team, you ll take ownership of full-stack development, contribute to software architecture, drive engineering best practices, and mentor junior … data management Apply design patterns like OOP, SOLID, and Clean Code to write scalable code Engineering & Architecture Deliver high- and low-level estimations for projects Ensure softwarequality through unit and integration testing Perform code reviews and participate in pair programming Architect scalable, secure systems, including OAuth and SSO integrations Cloud & DevOps Deploy and manage More ❯
possible renewals About the Role We’re looking for Senior Software Engineers to join our client's dynamic Engineering team and play a key role in building high-quality, scalable software solutions. As a senior member of the team, you’ll take ownership of full-stack development, contribute to software architecture, drive engineering best practices, and mentor junior … data management Apply design patterns like OOP, SOLID, and Clean Code to write scalable code Engineering & Architecture Deliver high- and low-level estimations for projects Ensure softwarequality through unit and integration testing Perform code reviews and participate in pair programming Architect scalable, secure systems, including OAuth and SSO integrations Cloud & DevOps Deploy and manage More ❯
Manchester, England, United Kingdom Hybrid / WFH Options
Uniting Ambition
of scalable, robust front-end software, from design to deployment. Fostering a culture of creativity, innovation, and engineering excellence , with hands-on mentorship and team growth. Driving technical decisions, codequality, and best practices across the front-end stack. What You’ll Bring: Proven experience leading high-performing front-end teams , ideally with React/TypeScript. Hands More ❯
warrington, cheshire, north west england, united kingdom Hybrid / WFH Options
Uniting Ambition
of scalable, robust front-end software, from design to deployment. Fostering a culture of creativity, innovation, and engineering excellence , with hands-on mentorship and team growth. Driving technical decisions, codequality, and best practices across the front-end stack. What You’ll Bring: Proven experience leading high-performing front-end teams , ideally with React/TypeScript. Hands More ❯
bolton, greater manchester, north west england, united kingdom Hybrid / WFH Options
Uniting Ambition
of scalable, robust front-end software, from design to deployment. Fostering a culture of creativity, innovation, and engineering excellence , with hands-on mentorship and team growth. Driving technical decisions, codequality, and best practices across the front-end stack. What You’ll Bring: Proven experience leading high-performing front-end teams , ideally with React/TypeScript. Hands More ❯
Northern Ireland, United Kingdom Hybrid / WFH Options
Adepta Partners
impact digital products that make a real difference to our customers. Key Responsibilities Lead, mentor, and inspire a cross-functional team of software engineers. Drive best practices in engineering, codequality, testing, and DevOps. Contribute to architecture and technical decision-making across the stack. Work closely with Product and Design teams to deliver exceptional user experiences. Ensure More ❯
and contributing to multiple internal tools and products.You’ll join a collaborative team of developers with a strong peer-review culture. There are no dedicated testers, so attention to codequality is essential. Tech Stack OO PHP (7/8), bespoke MVC, Laravel , Symfony MySQL , Docker , AWS (EC2, RDS, Amplify) JavaScript , Bootstrap (minimal front-end work) Testing More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Radley James
high-frequency FX trading Collaborate with quants and traders to deliver platform enhancements Drive performance tuning and solve low-level technical bottlenecks Maintain high standards in testing, documentation, and codequality Tech Stack & Skills: Strong proficiency in core Java Exposure to JavaScript/TypeScript & HTML5 is a plus Deep understanding of data structures, algorithms, and performance optimization More ❯
high-frequency FX trading Collaborate with quants and traders to deliver platform enhancements Drive performance tuning and solve low-level technical bottlenecks Maintain high standards in testing, documentation, and codequality Tech Stack & Skills: Strong proficiency in core Java Exposure to JavaScript/TypeScript & HTML5 is a plus Deep understanding of data structures, algorithms, and performance optimization More ❯
london, south east england, united kingdom Hybrid / WFH Options
Radley James
high-frequency FX trading Collaborate with quants and traders to deliver platform enhancements Drive performance tuning and solve low-level technical bottlenecks Maintain high standards in testing, documentation, and codequality Tech Stack & Skills: Strong proficiency in core Java Exposure to JavaScript/TypeScript & HTML5 is a plus Deep understanding of data structures, algorithms, and performance optimization More ❯
slough, south east england, united kingdom Hybrid / WFH Options
Radley James
high-frequency FX trading Collaborate with quants and traders to deliver platform enhancements Drive performance tuning and solve low-level technical bottlenecks Maintain high standards in testing, documentation, and codequality Tech Stack & Skills: Strong proficiency in core Java Exposure to JavaScript/TypeScript & HTML5 is a plus Deep understanding of data structures, algorithms, and performance optimization More ❯
london (city of london), south east england, united kingdom Hybrid / WFH Options
Radley James
high-frequency FX trading Collaborate with quants and traders to deliver platform enhancements Drive performance tuning and solve low-level technical bottlenecks Maintain high standards in testing, documentation, and codequality Tech Stack & Skills: Strong proficiency in core Java Exposure to JavaScript/TypeScript & HTML5 is a plus Deep understanding of data structures, algorithms, and performance optimization More ❯
high-performance, low-latency video capture, processing, AI inference, visualisation, and streaming software. Collaborate with engineers and researchers to deliver secure-by-design medical software. Maintain high standards of codequality through reviews, testing, and documentation. ✅ Must Haves Hands-on experience with AI inference acceleration (e.g. NVIDIA TensorRT, ONNX Runtime). Strong proficiency in Python for numerical More ❯
high-performance, low-latency video capture, processing, AI inference, visualisation, and streaming software. Collaborate with engineers and researchers to deliver secure-by-design medical software. Maintain high standards of codequality through reviews, testing, and documentation. ✅ Must Haves Hands-on experience with AI inference acceleration (e.g. NVIDIA TensorRT, ONNX Runtime). Strong proficiency in Python for numerical More ❯
high-performance, low-latency video capture, processing, AI inference, visualisation, and streaming software. Collaborate with engineers and researchers to deliver secure-by-design medical software. Maintain high standards of codequality through reviews, testing, and documentation. ✅ Must Haves Hands-on experience with AI inference acceleration (e.g. NVIDIA TensorRT, ONNX Runtime). Strong proficiency in Python for numerical More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Burns Sheehan
for 0-1, working with regular feedback loops to iterate and improve as you go. They would expect strong opinions and pragmatism of how to balance speed with softwarequality/best practice. What’s in it for you? A cutting-edge, product-focused company where you will use the latest technology to build great products that are More ❯