full stack nodejs developer jobs in London

Warden AI Ltd. is seeking a Full-stack Product Engineer to build and evolve the core AI assurance platform. You will work across frontend development and backend services to transform complex audit workflows into reliable software customers trust.You will join an existing team, report to the CTO, and collaborate with product, data, and customer-facing teams....

The OpportunityWe are partnering with a Tier 1 investment bank on a major, multi-year technology transformation within its global Prime Finance Equities business.The Equity Accelerator programme is focused on modernising the technology backbone of the business — re-engineering core trading and post-trade systems, developing new data and market-expansion...

A leading AI technology company in London is seeking a Senior Full-Stack Software Engineer to develop innovative AI applications for the public sector. This role requires at least 5 years of engineering experience, specifically with React and cloud technologies. The position involves close collaboration with clients, ensuring high-quality application...

Stantec Inc. is seeking a seasoned Senior Full Stack Developer to join our engineering team in the UK. You will balance robust Python backends with sophisticated frontends and AI-driven architectures.You will design and maintain scalable web apps, using Django or similar frameworks, and build dynamic interfaces with Angular, HTMX, and Alpine.js. A strong...

IBM Consulting UK FutureNow in the public sector is hiring engineers to design, develop, test, and maintain full‑stack applications using modern front-end and back-end technologies. You will work on secure, scalable AWS cloud solutions and collaborate with architects, product owners, and security specialists to deliver business‑aligned outcomes.Expect to...

Infused Solutions is seeking a Senior Full-Stack Engineer to join an early-stage AI startup in London, working four days per week in the office. You’ll own features across the stack, influence architecture, and help shape the product as the company scales.You’ll work with a small, high-performing team, using TypeScript, Node.js and React, and you’ll...

Creditstar Group is a rapidly growing international consumer finance company seeking a Full Stack Engineer. You will participate in product and platform development, collaborating with the revolving credit product team to build features, frameworks, and scalable backend systems as part of a fully remote team.Ideal candidates have extensive PHP experience,...

Build and deliver the next generation of privacy-first analytics capabilities — from rapid prototypes and AI-powered insights to scalable product innovations embedded directly into Matomo’s core platform. Own end-to-end innovation development within a small, autonomous team, working closely with the CTO and senior engineers to turn high-impact concepts...

We are looking for a Full-Stack Engineer to build the Eigent desktop and web application. You will own the front-end architecture of our AI agent platform — a React/Electron app that lets users orchestrate, monitor, and interact with AI agents in real time.ResponsibilitiesArchitect and build features across the React/Electron desktop app and Next.js web...

Capgemini is hiring a Senior Full Stack Engineer with a focus on AI/ML to lead by example and deliver high-quality software. The role blends hands-on development with stakeholder partnership and setting engineering standards.The position emphasizes frontend ReactJS/TypeScript, strong backend API design, DevOps, and practical AI feature integration. It offers...

Expedia Group is seeking a Software Development Engineer II, Full-Stack to join the Search Results and Recs experience team. You will build React-based user interfaces and backend capabilities, contribute to API design, and own features from requirements through delivery with cross-functional teams.The role emphasizes server-driven UI rollout, migration from...

Iterum Trading Limited is seeking a Mid‑Level to Senior Full Stack Developer in London to help build Iterum IQ, focusing on AI/ML‑driven features. You’ll work closely with the Head of Product and a Fractional CTO, shaping architecture and mentoring junior developers.The role offers a path toward Head of Technology, with a hybrid London work arrangement...

Keylane UK is seeking a Full Stack Developer to build SiteView with React front-end and Java/J2EE back-end, in a Docker/AWS environment.You will contribute across the development lifecycle, prototype features, write tests, and deploy, collaborating with a small team to deliver scalable SaaS for insurers. You will investigate issues, optimize performance, and...

JPMorganChase in London seeks a Software Engineer II to ship secure, full-stack features using Java, Spring Boot, and microservices. You will work on scalable architectures, CI/CD pipelines, and AI-assisted development tools from day one, contributing to a culture focused on quality and continuous improvement.The role emphasizes debugging, performance...

Lead Full Stack EngineerConsortia are partnering with a high growth climate tech scale up that is digitising and modernising the energy ecosystem.They are hiring a Lead Full Stack Engineer who is as comfortable writing production grade code as they are line managing and developing engineers. If you are looking for a role where you can both build and lead,...

LexisNexis Risk Solutions in London is seeking a Software Engineering Lead to guide large, multifunctional development efforts, shaping architecture and writing complex code.You will mentor teams, collaborate with Product Owners, and work across cloud services (Azure/AWS) implementing RESTful microservices and full-stack solutions. The role requires...

A cutting-edge technology startup in London is seeking a Founding Full Stack Engineer to lead the development of an AI-powered platform aimed at transforming consumer decisions. The role requires a strong background in both frontend and backend systems with a focus on product development and learning. Competitive salary of up to £120,000 plus stock options....

LocationLondonEmployment TypeFull timeDepartmentWexlerAbout Wexler:Wexler is building the best AI system for litigation on the planet. We work with some of the world’s largest law firms, helping them to solve their most complex cases, find the winning strategy in each matter, and create clarity from the chaos of documents and facts in each case. We are a...

A leading digital bank in the UK is seeking a Full Stack Engineer who is comfortable with both front-end and back-end development. You will work on building the tooling necessary for our engineers, as well as writing and debugging code primarily in Java and React. The hybrid work model allows flexibility, supporting up to two remote days a week. The ideal...

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...