https://jobs.co.uk/job/senior-full-stack-engineer-aifintech-150k-equity-io-associates--c7295fd2-475c-47de-a50a-e0cb9009f81d RSS feed for Senior Full Stack Engineer | AI/FinTech | £150k + Equity at IO Associates. en-gb Tue, 01 Sep 2026 17:01:38 GMT https://jobs.co.uk/job/senior-full-stack-engineer-aifintech-150k-equity-io-associates--c7295fd2-475c-47de-a50a-e0cb9009f81d https://jobs.co.uk/job/senior-full-stack-engineer-aifintech-150k-equity-io-associates--c7295fd2-475c-47de-a50a-e0cb9009f81d Tue, 01 Sep 2026 11:54:52 GMT Location: London | Salary: 100000.00-100000.00 Annual | Type: Permanent | Senior Full Stack Engineer | AI/FinTech | £150k + Equity Most personal finance products are very good at telling you where your money went.What if one could tell you what to do next?I''m working with an early-stage AI FinTech that has recently closed its pre-seed round and is building an AI-powered financial co-pilot.They''re now looking for one of their first senior engineering hires.This isn''t a role where you''ll inherit a mature platform, a backlog and six layers of approval.You''ll be Engineer /, working directly with the founders to turn an early product into something people genuinely trust with their financial decisions.You''ll be responsible for things like: Building across the full stack, including React Native on the Front End Making early architectural and technology decisions Working with financial data, account aggregation and open banking integrations Building the AI layer that turns financial information into useful actions Helping shape the product, rather than simply being handed tickets Setting technical standards that future engineering hires will build onThey''re deliberately keeping the technical requirements broad.What matters more is that you''re a very str... Permanent