full stack javascript engineer jobs in London

Millennium is seeking a Full Stack Developer for its Equities Trading Technology team in London. You will design, build, test and support end-to-end features for the Meteorite Web platform, implementing backend services in Java and/or Python and building modern web interfaces with Angular or React.Work with Product Managers and stakeholders to translate...

Responsibilities Build and enhance complex GUI applications used in real-time environments Develop trading, operational and workflow management tools Design and build Python services, APIs and backend components Work on event-driven and distributed systems handling large volumes of data Create intuitive dashboards and visualisation tools for...

Devonshire Hayes Recruitment is seeking an experienced Full Stack Developer for a greenfield trading platform. You will lead on responsive, real-time trading interfaces using Next.js and React, while contributing to backend services, APIs and integrations.The role is a 12-month fixed-term contract with 3 days onsite per week, in a fast-paced Agile...

AKA UK приглашает опытного PHP-разработчика в отдел Digital. Ваша работа охватывает полный стек веб-приложений, с уклоном в back-end, поддержку Linux-инфраструктуры и внедрение CI/CD.Требуются знания PHP 8.x, WordPress,...

iProov is seeking an experienced Full Stack Engineer for Web-Innovation in London. You will design APIs, adapters and user-facing flows that connect iProov’s verification services with external systems, balancing security and usability in a hybrid work model.You will explore third-party platforms, implement integration patterns, and collaborate across...

AKA is a global entertainment agency seeking a hands-on full-stack developer with a back-end bias to join the Digital department. You’ll ship websites, web apps and emails, collaborate with designers, and help maintain cloud Linux infrastructure.The role offers growth towards seniority, opportunities to work across campaigns, and a hybrid working model...

Applied Data Science Partners Ltd. is seeking engineers to design, build, and deploy robust software solutions. You will work on data pipelines, backend services, and APIs to ensure scalability and performance, with a focus on code quality, security, and best practices. Knowledge of cloud deployments and Docker is essential.You will mentor juniors, review...

HelloKindred invites applications for a Java Full Stack Developer – Broker Dealer, in a hybrid UK-based role. You will design, develop, and maintain scalable enterprise apps supporting critical business functions with a focus on Java backend and modern front-end components.Experience in UK broker-dealer and capital markets is essential, along with...

Full Stack Engineer (React) - Trade Finance and LendingLocation: London & BirminghamCorporate Title: Assistant Vice President Trade Finance and Lending (TF&L) is one of the leading business departments in the Corporate Bank, working with clients around the globe. It has critical dependencies on IT platforms to service the Bank’s clients. You will work...

Admanage.ai is building the Cursor for ad management and empowering brands to launch hundreds of ads quickly across major platforms. This high-ownership full-stack role lets you design and deliver features across the entire product, from database schemas to UI, with a focus on performance, testing, and robust architecture.You'll collaborate directly with the...

Expedia Group in London is seeking a Software Development Engineer II (Full-Stack) to build React-based user interfaces and backend capabilities. You will own features from requirements through delivery, collaborating with product management, backend teams, platform teams, and brand teams to create configurable components and platform capabilities.The role...

A pioneering e-commerce platform is seeking a Senior Full Stack Engineer to develop impactful features for their pre-commerce platform. You will work across frontend and backend systems, collaborating closely with a small engineering team. The role requires 5+ years of experience in both frontend and backend development, focusing on delivering customer value...

A rapidly growing payments technology company in London is seeking a Senior Full Stack .NET Engineer to enhance their team. This pivotal role involves designing cloud-native applications and integrations, with strong focus on .NET Core, Microsoft Azure, and SQL. The ideal candidate has 5+ years of experience and is excited to influence product strategy in a...

pubX is looking for an experienced backend engineer to design and maintain services for our AI-driven advertising platform. The ideal candidate will have strong backend fundamentals and experience with AWS, Python, and event-driven systems.This role offers fully remote work with a competitive salary, equity opportunities, and support for professional...

Build real, production-grade software that powers our global banking businesses. At JPMorganChase, we believe great engineers are made through meaningful challenges, strong mentorship, and a culture that rewards curiosity and craftsmanship. Here, you'll work alongside experienced engineers who are passionate about clean code, scalable architecture, and...

A cutting-edge tech company in London is seeking a Fullstack Software Engineer to enhance their development tools. This role offers an attractive salary of £140k+, stock options, and exceptional benefits. The ideal candidate should have extensive experience in Python and frontend technologies like Vue or React. This opportunity allows you to work on...

Senior Full-Stack Engineer - AI Startup (Typescript, Node, React) London - 4 days per week in the office Permanent | £120,000 - £150,000 We're working with an exciting early-stage AI startup building an agentic platform for institutional finance. The company is a small, high-performing team of fewer than 10 people, moving quickly and building towards its...

Dare, based in London, is seeking a senior Full-Stack Engineer to join the Software Engineering team. You will own features end-to-end across UI, services, and data layers, building with React on the frontend and a modern backend stack.You’ll contribute to architecture, write robust code, and support real-time analytics for trading activities. You will...

Litta is hiring a Senior Full Stack Product Engineer to build and improve operational infrastructure for waste-collection scale. You will ship end-to-end features across frontend and backend, integrate external systems like Stripe/HubSpot, and leverage AI-assisted tooling to accelerate delivery while reducing manual work.The role requires ownership across...

JPMorganChase is seeking a Software Engineer III to join the Infrastructure Platforms, Data Center Services team. You will design and deliver full-stack solutions across frontend (React) and backend (Node.js/TypeScript, Python) services, ensuring secure, high-quality production code and scalable architectures.You will mentor junior engineers, participate in...