typescript fullstack engineer jobs in London

Lead Software Engineer (backend and AI focusses) - Up to £160k - LondonWe're partnering with a venture-backed AI startup building an AI-native platform that combines automation, voice AI, and agentic workflows to solve complex real-world operational problems. Engineering sits at the heart of the business, with AI embedded into both the product and the way...

About AnthropicAnthropic’s mission is to create reliable, interpretable, and steerable AI systems. We want AI to be safe and beneficial for our users and for society as a whole. Our team is a quickly growing group of committed researchers, engineers, policy experts, and business leaders working together to build beneficial AI systems.About the roleOur...

Pelago is the leading specialty substance use care provider, built on the belief that effective treatment means matching care intensity to what each member actually needs rather than defaulting to the most expensive intervention. Our programs guide members through every stage of the substance use spectrum, from unhealthy habits to active use disorders,...

About Warden AI Warden AI helps HR Tech vendors, staffing firms, and employers prove and improve the fairness, accuracy, and compliance of their AI hiring systems. In a fast-changing regulatory environment, organizations need a trusted partner to validate their AI, and Warden is quickly becoming the default solution. About Warden AI Warden AI helps HR Tech...

What we do. Electric Car Leasing Why we do it. Greener. Fairer. Future. We’re looking for a Senior Fullstack Software Engineer (Python and React) to join our product and engineering team building the systems that power our ability to revolutionize the electric car leasing industry. Our tech stack is Python with GraphQL, React with Next.js, PostgreSQL and...

Our Story Hello there. We’re Zopa. We started our journey back in 2005, building the first ever peer-to-peer lending company. Fast forward to 2020 and we launched Zopa Bank. A bank that listens to what our customers don’t like about finance and does the opposite. We’re redefining what it feels like to work in finance. Our vision for a new era of...

The chance to build out a tribe is not something that comes along often. You will take your in depth experience of graphical databases, Neo.4j or GraphQL to come in and grow a team. Your core focus will be to ensure the successful build and optimisation of the company’s proprietary data platform. You’ll lead out the tribe, hire the team and set the...

High-Growth Tech Scale-Up | Strategic + Hands-On RoleAn exciting opportunity has opened up with a rapidly scaling tech company that's investing heavily in its data infrastructure. They are seeking an experienced Data Engineer to take the lead on evolving their architecture while collaborating closely with senior leadership to shape the long-term data...

We are a fast-growing, FinTech company looking for a talented and enthusiastic individual to join our team. We are expanding, making this a perfect position if you would like to have a significant impact on our company’s growth and develop your role and career as the business evolves. You will join a team where your ideas will be welcomed and valued.You'll...

throxy is building an ambitious AI-powered dialing and data platform in London. We’re seeking experienced fullstack engineers to own end-to-end systems, including frontend and backend work with TS/React (Next.js). A CS degree or equivalent and UK-based relocation with visa sponsorship are required.Join a small, senior team shipping core infrastructure that...

CAIS is the pioneer in democratizing access to and education about alternative investments for independent financial advisors, empowering them to engage and transact with leading asset managers on a massive scale through a wide variety of alternative investment products and technology solutions. CAIS provides financial advisors with a broad selection of...

We're partnering with a well-backed, early-stage AI company building AI agents for one of the world's largest and least-disrupted industries: the firms that design, build and maintain physical infrastructure. Think agents and software that plug straight into the systems some of the biggest engineering consultancies on the planet already run on — and take...

Octopus Energy Group is seeking a Senior Fullstack Software Engineer (Python and React) to join our product and engineering team, building the systems that power our electric car leasing platform. Our tech stack includes Python with GraphQL, React with Next.js, PostgreSQL and NoSQL, deployed on AWS.You will work within a cross-functional team, build APIs,...

What is Flagstone? Flagstone is many things. An online savings platform, reinventing how individuals, businesses, and charities manage, protect, and grow their cash. A diverse group of people, bound by a collaborative spirit, and shared purpose. And lastly, a thriving, profitable business – where smart people do their best work. Each definition shares a...

Location: Central London - Hybrid or (entertaining candidates outside of London, doing once a month onsite collaborative visits)Sponsorship: Not available (must have full UK Right to Work)The OpportunityJoin a mission‑driven, Series A scale‑up following a record‑breaking funding round. They are scaling their engineering team to deliver a subscription...

The Opportunity Join Attest at a pivotal moment: we're transforming how the world's leading brands discover and act on consumer insights. As a Senior Software Engineer on the Measure squad, you'll help grow and evolve Attest Measure, our quantitative survey platform that gives brands robust, at-scale consumer research — from survey design and fielding...

Lead Software Engineer - AI-Assisted Product Engineering About the Role Breaking Wave is an internal fintech incubator for Deutsche Bank that blends startup speed with enterprise scale. As a Software Engineer, you will join a high performing cross-functional team, where you will be accountable to the Head of Technology and Product. You are a hands-on expert...

Senior Software EngineerLocation:Bristol – HybridSalary:£50,000 – £70,000We are seeking an experienced Full Stack Software Engineer with strong Java expertise to join a leading technology and professional services organisation, working on complex software development and transformation programmes. This is an exciting opportunity for a Senior Software...

About Junior Junior is building the AI operating system for investment research. Our software helps private equity firms, consultants and financial institutions complete high-stakes research workflows dramatically faster - from diligence and memo writing to market mapping, research synthesis and strategic analysis. We’re trusted by several of the world’s...

This is a unique opportunity to join a well-funded AI startup at a pivotal stage of growth. You'll become one of the earliest engineering hires, taking ownership of a cutting-edge AI platform and helping shape the future direction of both the product and engineering function as the business scales. THE COMPANY Our client is an early-stage AI business backed...