Senior Frontend Developer | DefenceTech

Senior Frontend Developer | Defence Tech

Location:

London, Greater London, UK

A rapidly growing defence tech startup is looking for a Senior Frontend Developer to join its high‑calibre engineering team building next‑generation software products used in real‑world operational environments.

Founded by engineers from Palantir Technologies and backed by significant funding, the company tackles technically complex problems with a strong emphasis on product quality, speed, and real‑world impact. This is a great opportunity for someone who enjoys working in a highly technical, fast‑paced environment alongside genuinely strong engineers in a collaborative and low‑ego team.

You’ll play a key role in designing and building modern frontend applications that sit at the core of the platform. The work is highly product‑focused, with engineers given real ownership and influence over technical direction.

The team works primarily with:
React, Type Script, modern frontend architecture and tooling, and some Rust across parts of the platform.

• Strong experience building frontend applications with React and Type Script
• Product‑mindful engineer who cares about usability and performance
• Comfortable working closely with backend engineers, designers, and end users
• Someone who enjoys ownership and moving quickly in a startup environment

• Exceptional founding team with backgrounds from top‑tier engineering companies
• Well‑funded business with ambitious long‑term vision
• High technical bar without a corporate environment
• Strong in‑person engineering culture with flexibility when needed
• Opportunity to work on genuinely meaningful technology with real‑world impact