AI Engineer

OVERVIEW

Why this role stands out

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.

COMPANY

Tracelight

tracelight.ai

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Software Development 2-10 London, United Kingdom Seed (VC-backed)

Tracelight - VC-backed AI operating system

Backed by Chalfen Ventures, Acequia Capital, Inovo, Entrepreneur First, Charlie Songhurst, Suhit Gupta.

RESPONSIBILITIES

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.

CANDIDATE PROFILE

Who this is a fit for

• 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.

WHAT MAKES IT REMARKABLE

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.

JACK & JILL

How Jack & Jill work together

Ok, I'll go first. I'm Jack, an AI 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.