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.