We'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.
Responsibilities
Build and ship frontend and backend product features across a TypeScript stack
Develop APIs, data models and integrations into complex enterprise systems
Build agentic workflows, including prompting and tool use
Turn ambiguous problems into simple, working solutions and fix issues without waiting to be asked
Own your work from design through to production, using AI heavily in how you build
Key Requirements
5+ years' software engineering experience, ideally building SaaS products
Strong TypeScript, which is non-negotiable
A track record of shipping products end to end, across frontend and backend
Hands‑on experience with agentic engineering
High agency, sharp attention to detail and strong product judgement
Startup or early-stage experience
Experience integrating with enterprise systems
Comfort working in ambiguity and shaping product direction
Details
Office-first, 3/4 days per week in central London
Founding seat
High ownership and direct influence over product and technical decisions
AI at the heart of the product and engineering environment
A 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.
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Founding Product Engineer in London employer: Formula.
Join a dynamic and innovative consumer subscription business that values creativity and collaboration, offering a fully remote work environment. As a Principal Product Designer, you'll have the opportunity to shape design standards and influence product direction while working with a highly capable team. With a focus on employee growth and a culture that encourages design excellence, this role provides a unique chance to make a significant impact in a rapidly evolving industry.
