Founding TypeScript Engineer — AI‑Driven Enterprise SaaS

Formula.; Greater London; On-site; GBP 120,000 - 180,000; Full time

Job summary

Formula. is seeking a founding TypeScript Engineer to own features end-to-end in a London office setting. You’ll partner with the VP Engineering on core product development, shipping frontend and backend capabilities in a TS stack, and embedding AI at the heart of the solution.

You will lead agentic workflows, API/data-model design, and complex enterprise integrations while shaping product direction in a fast-paced, startup environment.

Qualifications

• 5+ years of software engineering experience, ideally building SaaS products.
• Strong TypeScript, which is non-negotiable.
• Track record shipping end-to-end products across frontend and backend.
• Hands-on experience with agentic engineering.
• Startup or early-stage experience.
• Experience integrating with enterprise systems.

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

Skills

TypeScript

SaaS product development

Full stack shipping

Agentic engineering

Startup / early-stage

Enterprise integrations

Ambiguity handling

Job description

Formula. is seeking a founding TypeScript Engineer to own features end-to-end in a London office setting. You’ll partner with the VP Engineering on core product development, shipping frontend and backend capabilities in a TS stack, and embedding AI at the heart of the solution.

You will lead agentic workflows, API/data-model design, and complex enterprise integrations while shaping product direction in a fast-paced, startup environment.