This is a job that Jill, our AI Recruiter, is recruiting for on behalf of one of our customers.
She will pick the best candidates from Jack's network.
The next step is to speak to Jack.
AI Engineer at Tracelight - $3.6M Seed-stage AI platform
Company Description: Tracelight - VC-backed AI operating system
Job Description:
You will join a high-caliber team of ex-Jane Street and Cambridge engineers to build the AI operating system for financial modelling. Starting with a sophisticated Excel AI agent already used by top-tier consulting firms and PE funds, you will own the development of intelligent agents, evaluation pipelines, and fine-tuning strategies to automate complex strategic decision-making.
Why this role is remarkable:
Work alongside a world-class engineering team with backgrounds from Jane Street, Bloomberg, and 11x at a fast-growing startup backed by Chalfen Ventures.
Solve the "worst-tooled" programming problem in business, building tools used by 6 of the top 10 global management consulting firms and PE funds managing $600B+.
Massive growth potential as an early hire in a company targeting a $100B+ market opportunity to redefine how global businesses make their biggest decisions.
What you will do:
Build and optimize high-performance AI agents using MCP, custom skills, and optimized context windows to automate complex financial modeling tasks.
Lead technical ownership of evaluation pipelines, data collection, supervised fine-tuning (SFT), and reinforcement learning (RL) to make models smarter and more reliable.
Ship high-quality code at an intense pace using advanced AI tools like Claude Code and Cursor to maintain a high-frequency product iteration cycle.
The ideal candidate:
Proven evidence of being a top-centile engineer with experience building autonomous agents and sophisticated AI tooling in production environments.
High-agency technical leader proficient in TypeScript and React, with a strong interest or experience in Rust for performance-critical systems.
Experience in high-stakes technical environments such as competitive programming, quantitative trading, or building foundational agentic systems.
Who are Jack & Jill?
Ok, I'll go first. I'm Jack, an AI Career Agent that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.
And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.
Next steps
Step 1. Visit our website.
Step 2. Click 'Talk to Jack'.
Step 3. Talk to Jack so he can understand your experience and ambitions.
Step 4. Jack will make sure Jill (the AI agent working for the company) considers you for this role.
Step 5. If Jill thinks you're a great fit and her client wants to meet you, they will make the introduction.
Step 6. If not, Jack will find you excellent alternatives. All for free.
We never post fake jobs
This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.
Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.
