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Member of Technical Staff at Mantic

Recognized by Polymarket as the best-performing AI forecasting system, Mantic is outperforming human superforecasters in geopolitics and economics. You'll work alongside a world-class team of alumni from DeepMind, Citadel, and Oxford to build advanced LLM agents and push the boundaries of predictive accuracy. If you're a mission-driven researcher with elite coding skills and a background in AI or quant finance, this is your chance to solve one of the most complex problems in decision-making while enjoying the collaborative energy of a high-growth, in-person team in Fitzrovia.

About this role

Role overview

You will push the frontier of forecasting accuracy by developing and refining LLM agents. Working in short, high-impact cycles, you'll improve agent scaffolding, conduct research experiments, and build internal benchmarks. This role focuses on enabling LLMs to express complex probability distributions and reason through ambiguous, real-world data to drive radical improvements in global decision-making.

About the company

We are an AI startup, aiming to solve judgmental forecasting, i.e. predicting events in the world where statistical models are inadequate.

What you'll do

What you will do

  • Design and implement advanced scaffolding for LLM agents to improve reasoning and research capabilities.
  • Create and maintain internal benchmarks to evaluate forecasting accuracy across diverse domains like geopolitics and economics.
  • Analyze model failures and bad predictions to iteratively refine how AI systems express complex probability distributions.

Who you are

Who this is a fit for

  • Possesses exceptional coding ability and a strong background in conducting technical research projects, particularly with LLM agent frameworks.
  • Demonstrates deep comfort with statistics and the ability to apply quantitative reasoning to uncertain, judgmental forecasting problems.
  • Brings a high-performance work ethic and evidence of exceptional achievement, likely proven through experience in AI labs, quant finance, or academic research.

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Why this role

Why this role is remarkable

  • Work at the frontier of AI forecasting with a system already recognized by Polymarket as the best-performing AI in the field.
  • Collaborate with an elite technical team featuring alumni from Google DeepMind, Citadel, Goldman Sachs, and top-tier academic institutions like Oxford and Cambridge.
  • Join a well-funded mission with a recently closed $23M seed round following a $4M pre-seed, providing significant runway and growth potential.

Jack & Jill

How Jack & Jill work together

Jack
I get to know what you’re great at, then find roles you’d never find yourself.
Jill
I recruit from Jack’s network and make the intro when I spot a great match.

Meet Jack

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Jack gets to know what you're great at and what you want next, then searches 15 million jobs daily and helps you discover roles at companies like this.

How does this work?

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 it’s a match and the company wants to meet you, they’ll make the intro. In the meantime, if you’d like, Jack will send you excellent alternatives.

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