Product Engineer
numi · City Of London, England, United Kingdom
About this role
The candidate will build and ship product features using React and Node.js, developing APIs, data models, and integrations to connect the product to customer systems. Responsibilities include building LLM-backed features, including prompting and tool use, and contributing to AI-powered workflows and agents. The role involves owning work from design through to production in an early-stage AI startup environment. The engineer will work directly with the VP Engineering on the core product. The position is based in central London with a hybrid work model.
Skills & technologies
Nice to have
- Startup experience
Read full description
Product AI Engineer
The opportunity
Join an early stage, high growth AI startup building AI agents for some of the world's largest engineering and infrastructure enterprises. This is a rare chance to work directly with the VP Engineering on the core product, with real ownership over what you build and how it's built. If you want to ship fast, solve ambiguous problems, and use AI heavily in how you work, this is built for you.
What you'll be doing
- Build and ship product features across React and Node
- Develop APIs, data models and integrations that connect the product to customer systems
- Build LLM backed features, including prompting and tool use
- Contribute to AI powered workflows and agents
- Turn ambiguous problems into simple, working solutions, owning your work from design through to production
- Find and fix problems without waiting to be asked
What we're looking for
- 3+ years' software engineering experience
- Strong TypeScript. This one is non negotiable
- A track record of shipping real products across frontend and backend
- Hands on experience with LLMs, agents or AI APIs
- Exceptional diligence and attention to detail, with high agency and strong ownership
Bonus points if you have
- Startup experience
- Comfort operating in a fast moving, high performance team where feedback is direct and frequent
What's on offer
- £80k to £90k base salary
- Direct exposure to and mentorship from the VP Engineering
- Real ownership over meaningful parts of the product
- The chance to shape both product and technical decisions as the company grows
- Office first role, based in central London - 1 day remote
How to apply
Interested? Reach out to the Numi team or apply directly, we'd love to hear from you.
