Software Engineer (Rust/TypeScript)

Job description

Software Engineer (Rust/TypeScript)

GenAI Startup | London (on-site)

Compensation: £120k-£200k + equity package.

About

This is a VC-backed GenAI startup building an AI-native platform for financial modelling - think replacing the spreadsheet workflows that haven't changed in 20 years.

The team is small by design (~7 engineers today) and the bar is high. They’ve already raised a serious round, are live with major enterprise customers, and plan to grow in 2026 - but only by adding exceptionally talented engineers and raising the bar with every new hire.

What you'll do

• Build core product features end-to-end across backend (mainly) and frontend
• Write performance-critical code - remove allocations, optimise queries, aggressive caching
• Develop and improve an AI coding agent that writes, edits, and reasons over complex spreadsheet models
• Own backend infrastructure, CI pipelines, and low-level debugging
• Ship fast without cutting corners on quality

Tech Stack: TypeScript (primary), Rust (when performance matters), AWS, Claude Code/Cursor.

What you'll need

• Clear evidence you're a top-percentile engineer - fast promotions, competitive programming, notable projects, or similar
• Strong fundamentals (language-agnostic - they care more about how you think than what you've used)
• Excellent problem-solving ability
• Already comfortable with AI-assisted dev tools (Claude Code, Cursor, etc.)
• High agency - you're self-driven and don't wait to be told what to do
• Happy to be in the office 5 days a week in London (non-negotiable)

You’ll get real ownership, work closely with other strong engineers, and build something people actually use every day.

Compensation: Up to £120k-£200k + equity.

Shortlisted candidates will be contacted within 48 hours.

Extra information

Status

Open

Education Level

Secondary School

Location

London Area

Type of Contract

Full-time jobs

Published at

09-02-2026

Full UK/EU driving license preferred

No

Car Preferred

No

Must be eligible to work in the EU

No

Cover Letter Required

No

Languages

English