Principal TypeScript Engineer
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Principal TypeScript Engineer

Reference: ER - 13
Location
London, UK
Salary
Up to £160K
Contract Type
Permanent
Work Arrangement
In-Office (Full-Time)
Skill Requirements
  • Software Engineering

Principal TypeScript Engineer | Early-Stage Defence Startup | World-Class Team | London

 

Principle TypeScript Engineer required to join a lean, exceptionally high-calibre team building technology designed to solve some of the most complex challenges in modern defence. This is a true early-stage environment - high ownership, fast iteration, and the opportunity to work alongside some of the most ambitious engineers in the space. They’re looking for a Principal TypeScript Engineer who wants to operate at the highest level, help shape core systems from the ground up, and work in a team where the technical bar is extremely high.

 

The Role

  • Designing and building high-performance backend systems using TypeScript
  • Working across the stack to ship robust production systems
  • Architecting scalable services and APIs
  • Collaborating with a small, highly capable engineering team
  • Taking significant ownership of product and technical direction
  • Operating in a fast-moving startup environment with rapid iteration

 

What They’re Looking For

  • 5+ years of software engineering experience
  • Deep experience with TypeScript in production environments
  • Strong backend engineering skills (Node.js, distributed systems, APIs)
  • Experience building complex, scalable systems
  • Ability to work autonomously and take ownership in an early-stage environment
  • Outstanding academic background (top university and strong degree in Computer Science or STEM)
  • A desire to work with an ambitious team solving difficult technical problems
  • Happy working in defence

 

Nice to Have

  • Experience in high-performance or data-intensive systems
  • Experience in startups or early-stage environments
  • Exposure to AI/ML or advanced data platforms

 

Why This Role

  • Join a small, elite engineering team
  • Work on mission-critical technology
  • Huge ownership and impact from day one
  • Be part of a rocket-ship early-stage company
  • Based in-person in London

 

If you are excited to join a genuine rocketship environment where every engineer has significant ownership and impact, this might be the role for you.

 

Principal TypeScript Engineer | Early-Stage Defence Startup | World-Class Team | London

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Ellie Ryan
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