26 to 50 of 172 Senior Full-Stack Engineer Jobs in London

Ebury is building an AI-powered financial crime investigation platform. We seek a Senior Full-Stack Engineer to scale the system from React frontend to Python FastAPI backend and integrate LangGraph-based AI workflows. You will mentor teammates, shape architectural direction ...

Robinhood Markets, Inc. in London is seeking a Senior Full-Stack Software Engineer to own end-to-end delivery across the Prime platform for institutional clients. You will lead feature development from backend services to frontend and backoffice surfaces, mentoring peers ...

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 ...

Scale is seeking a Senior Full-Stack Software Engineer (Forward Deployed) to partner with public sector clients in London. You will rapidly build full‐stack AI applications that solve complex problems and deliver measurable impact for citizens. ...

looking for a senior engineer to help build the next generation of Mowt. You'll work across the full stack—from crafting Laravel APIs and MySQL schemas to building React web apps and React Native mobile experiences that handle millions of Stripe ...

Online Filings is seeking a Senior Software Engineer to architect and develop our next-generation web application and API. This role requires technical leadership, hands‐on development, and mentoring of junior developers to ensure scalability, security and performance. If you are passionate about software development, enjoy ...

Zebra People | B CorpTM in London is hiring Senior Software Engineers to join a global B2B software team working on AI-enabled products and platform modernization. You’ll own features from conception to production as a full-stack engineer across TypeScript, Node.js ...

businesses operate globally, get in touch — we’d love to discuss how Ebury can accelerate your career so you can shape the future. Senior Fullstack Engineer – Payments Experience Location: London (Hybrid: 4 days in-office, 1 day remote) Build the Future of Global Payments Every … thousands of businesses rely on our platform to move money across borders. As a Senior Fullstack Engineer in our Payments Experience (PayE) team, you won’t just write code—you’ll architect the high-scale web applications and platform tooling that enable our entire engineering ...

Build the Future of Cyber Security Learning at Scale Join TryHackMe as a Senior Full-Stack Engineer. We are a fast-growing, highly profitable cybersecurity training platform trusted by over 9 million learners and 1,000+ enterprise organisations globally, including Google, KPMG … what works using data, user feedback, and experimentation rather than relying on opinions. What You’ll Bring Core Technical Mastery: Strong commercial full-stack experience building production SaaS applications with advanced TypeScript, Node.js, React and MongoDB/SQL fundamentals. Product Engineer Mindset: You care ...

Koch Ag & Energy Solutions in London is seeking a Senior-level Full-Stack Software Engineer to design and deliver scalable technology solutions for middle-office capabilities, including trading operations and data integrity. You will influence architecture and guide platform evolution while improving ...

including the conversational copilot experiences built on top of it across the product. We are hiring a Full-Stack Engineer to help build and ship production features across this entire stack, from the agent runtime and tool orchestration layer in the backend … remote environment requiring clear and effective communication. Strong English skills are also crucial to efficiently interacting with AI. Prior industry experience building full-stack web applications (this is not an entry-level position). Proficiency with React and TypeScript, and experience building rich, interactive user interfaces. ...

Taktile is hiring a Full-Stack Engineer to build features across the AI agent platform, from the backend runtime to the frontend UX. You will work with Python (FastAPI) on AWS serverless, and React/TypeScript on the frontend, delivering production features and improving ...

Software Engineer to lead and shape front-to-back applications within Ratings Technology. You will craft mission-critical full-stack solutions and influence architectural direction. The role emphasizes AI exploration, collaboration with product teams, and delivering high-quality user experiences at scale … with hybrid work from London, Manchester, or Toronto and a pathway to senior leadership. #J-18808-Ljbffr ...

client is a global financial services and investment company. Were seeking a future team member for the role of Senior Vice President, Full-Stack Engineer to join our team. This role is located in London or New York. In this role, youll ...

Morgansholding is looking for an experienced full-stack engineer to build and own the web platforms behind Morgan’s Grocer in the UK. You’ll ship the online storefront, APIs, and internal tools, focusing on performance and reliability for high-traffic shopping and delivery. ...

client is a global financial services and investment company. We're seeking a future team member for the role of Senior Vice President, Full-Stack Engineer to join our team. This role is located in London or New York. In this role ...

PULL UP LTD in Greater London is looking for a senior software engineer to join our core engineering team. Your role will involve designing scalable backend services and building user interfaces using TypeScript, React, and Node.js. You will also mentor junior engineers and contribute to architecture ...

date and in order before applying for this opportunity. We're seeking a future team member for the role of Senior Vice President, Full-Stack Engineer to join our team. This role is located in London or New York. In this role ...

Senior Full Stack Engineer (London) About Fresha Fresha is the leading AI-powered operating system for the global beauty and wellness industry, giving businesses everything they need to run smarter, grow faster and build stronger client relationships. In May 2026, Fresha secured … scale rapidly across markets, teams and products, making this an exciting time to join us. Role Overview Senior Full Stack Engineer | The Bower, 207-211, Old St, Tower, London EC1V 9NR | Four days in office, Wednesdays remote You’ll join a cross ...

Avallo is hiring a Senior Software Engineer in Greater London to lead implementation across a modern, shared stack. This hands-on role requires owning technical decisions, writing production code, and delivering scalable systems across multiple PE portfolio products. You will design APIs and backend services, build ...

Applied Data Science Partners Ltd. in London is seeking a Senior Full-Stack Developer to lead the design, development, and deployment of complex software solutions. You will architect data pipelines, backend services, APIs, and ensure scalable, high‐quality UI/UX across industries. ...

seeking a Full-stack Engineer to build robust, scalable web-based software and enhance the Ki platform. You will design, build, test, and maintain APIs and integrations, while collaborating with Product and UX to deliver features with top-tier user experience. You will work ...

About The Role Job Level: 9 UK Wide We are looking for a Senior Software Engineer who will be responsible for designing, developing, and deploying high-quality software solutions. You will work on complex software projects, contributing to the architecture, development, and improvement of software systems. … process optimisation initiatives. Communicate complex technical concepts effectively to non-technical stakeholders. About You Professional knowledge and experience Essential Proven experience in full-stack software development, including design, development, testing, and deployment. Significant hands on experience with Java, Spring Boot and Microservices. Strong understanding of Agile ...

Portfolio Credit Control is seeking a Senior Software Engineer to own the application and integration layer for a new generation of AI-powered products. The role spans backend, API design, MCP integration and frontend development with React and TypeScript. You will design scalable REST/GraphQL ...

Deliveroo in London is seeking a Senior Software Engineer - Full Stack to own features end to end, work with Product and Design, and help shape how we build at scale. You'll join the Home Page & Merchandising Platform team, tackling high-traffic ...