Founding Product Engineer

Founding TypeScript Engineer

Location: London, On-site (3/4 days)Salary: £90,000 - £100,000We're working with an early-stage, AI-native SaaS company building intelligent agents for some of the world's largest enterprises, operating in a huge industry that AI has barely touched.

Global organisations are already customers, the team is small and high-performing, and they move quickly.This is a Founding TypeScript Engineer role for someone who wants very high ownership. You'll work directly with the VP Engineering on the core product, owning features end to end: understanding the problem, deciding how to solve it, shipping it and making sure it works. AI sits at the centre of the product.ResponsibilitiesBuild and ship frontend and backend product features across a TypeScript stackDevelop APIs, data models and integrations into complex enterprise systemsBuild agentic workflows, including prompting and tool useTurn ambiguous problems into simple, working solutions and fix issues.Own your work from design through to production, using AI heavily in how you buildKey Requirements3+ years' software engineering experience, ideally building SaaS productsStrong TypeScript, Node.js and React.jsStartup or early-stage experienceA track record of shipping products end to end, across frontend and backendDesirableExperience integrating with enterprise systemsComfort working in ambiguity and shaping product directionDetailsSalary: £90,000 - £100,000Office-first, 3 days per week in central LondonFounding seatHigh ownership and direct influence over product and technical decisionsAI at the heart of the product and engineering environmentA strong opportunity for a Founding TypeScript Engineer who wants full end-to-end ownership, real influence over product and technical decisions, and the opportunity to build at an early-stage AI company.Due to the high volume of applications, not all applicants will receive feedback.