full-stack developer jobs in London

Lead Software Engineer, Full-Stack Applications – AI Fluent Fitch Ratings is seeking a Lead Software Engineer to join our global Ratings Technology team in London. This is an opportunity to build mission-critical platforms while helping shape the next generation of technology that powers how a world-leading credit ratings agency delivers insights. In this...

As one of the world’s top three credit ratings agencies, Fitch Ratings plays a critical role in global capital markets by providing credit analysis, ratings, research, and commentary to financial market participants. For over 100 years, Fitch Ratings has been creating value for global markets through its rigorous analysis and deep expertise, which have...

Our Global Structure Deliveroo is now part of DoorDash, bringing together teams with even greater reach, scale, and ambition. Depending on your role, you may collaborate with teammates, systems, and leaders across DoorDash and Wolt. Together, we’re unlocking new possibilities as one global team. Why Deliveroo? We're building the definitive online food...

Heidi is seeking a Senior Full-Stack Engineer to own features end-to-end—from data model to frontend. You will ship React/TypeScript interfaces and Python services, balancing browser and server logic for performance and scalability.You will design APIs, manage data modeling with MongoDB/Redis, and build high-throughput systems. You’ll work with...

This role is with one of Dex's trusted partner companies. We work closely with their teams to truly understand their culture, goals, and what they're looking for, so we can match you with the right opportunity and give you context about the role before you commit to a process. If you're interested sign up to Dex to apply. Dex is an AI recruiter agent that...

This role is with one of Dex's trusted partner companies. We work closely with their teams to truly understand their culture, goals, and what they're looking for, so we can match you with the right opportunity and give you context about the role before you commit to a process. If you're interested sign up to Dex to apply. Dex is an AI recruiter agent that...

Our client a Media and Publishing company that are looking for a Full-Stack Engineer to join one of their clients on a full-time contract (8 hours per day, 5 days per week) Key Skills: - **TypeScript & Front-End Development** - Strong experience building performant, scalable, browser-based applications using TypeScript, with a focus on user experience,...

Who We AreKonrad is a next generation digital consultancy. We are dedicated to solving complex business problems for our global clients with creative and forward-thinking solutions. Our employees enjoy a culture built on innovation and a commitment to creating best-in-class digital products in use by hundreds of millions of consumers around the world. We...

Our Global Structure Deliveroo is now part of DoorDash, bringing together teams with even greater reach, scale, and ambition. Depending on your role, you may collaborate with teammates, systems, and leaders across DoorDash and Wolt. Together, we’re unlocking new possibilities as one global team. Senior Software Engineer, Full Stack - New Verticals Join...

wawa fertility in London is seeking a Full Stack Ruby Engineer to join our hybrid team. You’ll build end-to-end features across the stack, collaborating with clinicians and designers to deliver fast, intuitive interfaces that scale across 14+ countries.You’ll own your domain, ship high-quality code, and contribute to an AI-forward product that transforms...

Join our team at the Guardian and be a part of a diverse and inclusive global organisation that delivers fearless, investigative journalism, and holds power to account. Our team of award-winning journalists, cutting-edge commercial professionals, and industry-leading digital experts are committed to making a difference and represent a wide range of...

Our Global Structure the company is now part of DoorDash, bringing together teams with even greater reach, scale, and ambition. Depending on your role, you may collaborate with teammates, systems, and leaders across DoorDash and Wolt. Together, we’re unlocking new possibilities as one global team. Staff Software EngineerJoin us in our mission to transform...

Validus Risk Management Limited seeks a Python Software Engineer to join the Client Success Team as a Senior Developer. You will own end-to-end enhancements for the Validus Horizon platform, translating financial and operational requirements into scalable solutions and mentoring CST initiatives.You will design full-stack components, build ETL processes, and...

Department: Engineering Location: London Description Hybrid: 2 days per week in our Tower Bridge office (Wednesdays & Thursdays) money.co.uk exists to help consumers make more informed financial decisions. Our free, online comparison service allows consumers to compare financial products, from credit cards to savings accounts, loans to travel money. We...

Join as a visionary Full Stack Developer, leading transformative development with integrated solutions across front and back-end, bridging the technology-business gap and shaping the future with innovative user experiences.Key ResponsibilitiesAnalyze, design, develop, implement, and maintain application code in a variety of contexts.Use the .NET and Azure...

Harnham - Data & Analytics Recruitment seeks a Full Stack AI Engineer on a contract basis. Must have SC Clearance, work fully remote in the UK, and operate outside IR35. Immediate start with day-rate £500–£550.You will design and develop full-stack AI apps, build interfaces and APIs, deploy LLM-powered solutions, and manage data stores. Experience with...

Location The senior Full-Stack Engineer will be an integral part of our Engineering teams in EMEA.Make sure to apply with all the requested information, as laid out in the job overview below.This role is based remotely as a full-time employee in the UK, Ireland, Estonia, the Netherlands, Sweden and Israel.We are also open to contractors in Eastern Europe and...

Infused Solutions Ltd, a London-based early-stage AI startup, seeks a senior software engineer to own end-to-end features across the stack. You will build production-grade software, shape architecture, and collaborate with founders to steer the product roadmap.The role emphasizes delivering across backend, frontend, APIs, and cloud infrastructure, using...

Octopus Electric Vehicles, part of the Octopus Energy Group, is seeking a Senior Fullstack Software Engineer (Python and React) to join our product and engineering team. We build systems powering our electric car leasing platform, with a stack including Python, GraphQL, React with Next.js, PostgreSQL, NoSQL databases, and AWS.You will work in...

Fireblocks is the company bringing global finance onchain. Backed by over $1 billion in capital, we are the premier digital asset infrastructure provider trusted by thousands of industry-defining financial institutions, including banks, payment providers, fintechs, and global corporates such as BNY Mellon, BNP Paribas, ANZ Bank, Western Union, Stripe, and...