Senior Fullstack Engineer

Capsa AI
London, United KingdomPosted Jun 18, 2026
Skip to main content Senior Fullstack Engineer Capsa AI London, England, United Kingdom Apply Join or sign in to find your next job Join to apply for the Senior Fullstack Engineer role at Capsa AI Email or phone Password Show Forgot password? Sign in Sign in with Email or New to LinkedIn? Join now By clicking Continue to join or sign in, you agree to LinkedIn’s User Agreement, Privacy Policy, and Cookie Policy. Senior Fullstack Engineer Capsa AI London, England, United Kingdom 1 week ago 57 applicants See who Capsa AI has hired for this role Apply Join or sign in to find your next job Join to apply for the Senior Fullstack Engineer role at Capsa AI Email or phone Password Show Forgot password? Sign in Sign in with Email or New to LinkedIn? Join now By clicking Continue to join or sign in, you agree to LinkedIn’s User Agreement, Privacy Policy, and Cookie Policy. Save Report this job The AI Operating System for Private Capital.Capsa AIPrivate capital funds have to find potential investments, research and analyse them thoroughly, monitor them over time, drive improvements, and decide when to buy and sell. They've got to see through the marketing. They've got to outbid the competition. And they've got to learn from every deal they do. Historically, these processes have run on people, we are building the AI Operating System that will run them in the future.We're focused, ambitious, and obsessed with building a category-defining company. In the last 12 months we've grown ARR 15x, achieved product–market fit with leading multi-billion-dollar PE firms, and expanded across the US, UK, and Europe. Now we're doubling down: we've raised a large Series A from top-tier VC investors to scale the team. We're hiring hyper-talented people who want to work at the forefront of AI and revolutionise an industry.At a glanceRole: Senior Fullstack EngineerLocation: London, UK (Hybrid, in-person 4 days per week)Team: Engineering Compensation: Top of market. Competitive base + OTEThe roleOwn product features and take them from ideation to production and measure the impact. Work across all layers of the application to deliver value for our customers. Uphold the quality of our codebase and find ways to move faster.The opportunityOwnership: You'll own whole surfaces of the product end to end. You'll make the architecture calls, ship them, and operate them. Growth: You'll work across the entire stack, alongside a team of startup veterans, and take on real responsibility. Upside: You'll receive meaningful equity in a company that grew 15x last year. Impact: You'll leave an indelible mark on an industry responsible for ~7% of US GDP. Recent projects includeAgent Harness: Our own agent harness built on a custom, streaming-first graph execution framework. Code Execution Framework:...

Want jobs like this matched to you?

Swoopd scores fresh postings against your résumé so you only see the matches that matter.

Get started free