Senior Product Engineer

Foundation Partners; Greater London; Hybrid; GBP 120,000 - 150,000; Full time

Benefits offered by this job

Equity

Hybrid work model

Job summary

Foundation Partners seeks a Senior Product Engineer in London to own scientist-facing interfaces using React/TypeScript, with Python/Java backend services.

You’ll work mostly in frontend and API layers, with opportunities to go deeper as the product evolves in a small, fast-moving team backed by equity.

Qualifications

• 4+ years of engineering experience with React/TypeScript frontend and backend in Python/Java.
• Demonstrated shipping of product experiences with strong interaction details and polish.
• Background at FAANG, leading AI lab, or startup with high product engineering standards.

Responsibilities

• Own the interfaces where scientists interact with the platform end-to-end.
• Develop frontend architectures and component systems for rapid delivery.
• Collaborate with founders, customers, and domain experts to ship product.
• Ensure trust surfaces (provenance, citations, confidence) are rendered clearly.

Skills

React/TypeScript

Full-stack

Product experience

UI polish

Education

Bachelor’s degree or equivalent in engineering

Tools

React

TypeScript

Python

Java

Job description

Our client is a well-funded stealth startup within the Life Science are and are building the groundbreaking AI operating system for drug discovery software.
They’re hiring a Senior Product Engineer to own the interfaces where scientists interact with the platform. The stack is React and TypeScript on the front end, with Java and Python services behind it. You’ll live mostly in the frontend and API layers, with the range to go deeper when the product demands it.
Salary: £120,000-£150,000 + equity
Location: London - Hybrid 2-3 days a week onsite

What You’ll Own

• The product surfaces where scientists interact with the platform, end-to-end through to production
• Trust surfaces (provenance, citations, confidence) rendered so a scientist can check the work behind any answer
• The component systems and frontend architecture that let a small team ship polished product quickly
• Close work with founders, customers, and domain experts, turning ambiguity into shipped product
  

What They’re Looking For

• 4+ years of engineering experience, with deep React/TypeScript expertise and solid full-stack range with experience with Python/Java on the backend.
• You’ve shipped product experiences people rely on, and you can point to them and a strong product taste .... you sweat interaction details, performance, and polish
• A background that held a high bar: FAANG, a top AI lab, or a startup/scale-up with a great product engineering function
• Nice to have: genuine curiosity about building with AI, or experience shipping AI-powered features
  

This is a high-ownership role at a company of roughly a dozen people and it is fast-moving, direct, and high-stakes, with responsibility that will outrun your title.

A People team built for ambitious businesses

The old model for People & Talent doesn’t work for today's businesses. We've built a better one. Traditionally, early-stage Founders had two options: handle People & Talent themselves, losing precious time they should be spending on product or go-to-market, or hire a generalist, expected to cover everything from culture to recruitment to performance. We offer a more impactful alternative: A fully flexible, fractional People & Talent team with specialist skillsets and hands-on delivery, ready to start driving impact for your business in weeks, not months.