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AI Engineer at Tracelight
- Location
- London, United Kingdom
- Compensation
- Not Disclosed
Join an elite team of ex-Jane Street and Cambridge engineers building the 'Cursor for Excel.' This $3.6M Seed-stage startup is reinventing financial modeling—the most important but worst-tooled form of programming.
With 6 of the top 10 consulting firms already onboard and $600B+ AUM in the pipeline, you'll ship high-performance Rust and TypeScript code that powers the world's biggest business decisions. If you're a top-centile engineer who lives in Cursor and wants to own the AI operating system for finance, this Hoxton-based role is your chance to secure meaningful equity in a $100B+ category opportunity.
What's the next step?
This role is no longer actively hiring, but Jack can still help you discover similar open roles that fit.
Role overview
You will build the AI operating system for financial modeling, creating a “Cursor for Excel” that automates complex decision-making workflows. Working in a high-intensity team of ex-Jane Street and Cambridge engineers, you will own the development of intelligent agents, fine-tuning pipelines, and context optimization to redefine a $100B category.
About Tracelight
Software Development · 2-10 employees · London, United Kingdom · Seed (VC-backed)
Today, financial modelling is spreadsheet grunt work. We are transforming it joyous, frictionless work with AI
Backed by Chalfen Ventures, Acequia Capital, Inovo, Entrepreneur First, Charlie Songhurst, Suhit Gupta.
What you will do
- Build and optimize sophisticated AI agents using MCP, custom tools, and advanced context management to handle complex financial logic.
- Own the full AI lifecycle including evaluation pipelines, data collection, Supervised Fine-Tuning (SFT), and Reinforcement Learning (RL).
- Rapidly ship high-quality features using modern AI-assisted workflows while collaborating with world-class designers to ensure a beautiful user experience.
Who this is a fit for
- Top-centile engineer with deep experience building autonomous agents and a mastery of the modern AI tooling landscape like Claude Code and Cursor.
- Strong technical foundation in TypeScript and Rust, preferably with a background in competitive programming, high-frequency trading, or big tech.
- High-agency builder who thrives in a 5-day on-site environment and is determined to solve the “worst-tooled” form of programming in the world.
Why this role is remarkable
- Join an elite engineering team featuring ex-Jane Street, Bloomberg, and Cambridge ML talent building the future of strategic decision-making.
- Exceptional market traction with 6 of the top 10 management consulting firms and PE funds managing $600B+ AUM already using the product.
- High-impact ownership where you will transition into a technical leader, shipping Rust and TypeScript code that immediately reaches global financial leaders.
How Jack & Jill work together
What happens next?
Jack’s an AI agent for job searching and career coaching. He works for you.
Jill is the AI recruiter working for the company. She recruits from Jack’s network.
If your profile’s a match and Tracelight wants to meet, Jill will make the intro. In the meantime, Jack will send you excellent alternatives.