Role overview
Help evaluate whether AI-generated Lean proofs both compile and faithfully express the intended mathematics.
What you’ll be doing
- Write and review Lean 4 proofs against mathlib.
- Translate informal mathematics into precise checked statements.
- Explain incorrect formalisation and develop consistent proof-quality criteria.
Who this could suit
Lean engineers, formal mathematicians and proof engineers.
What you’ll need
Hands-on Lean 4 proof work, mathlib and tactic knowledge, proof-based mathematics or theoretical computing expertise, and clear written reasoning are required. You must be reliably available for at least 20 weekday hours per week. Other proof assistants, Lean metaprogramming and AI mathematics experience are useful extras.
You don’t have to match every requirement exactly. We welcome applicants with different backgrounds, levels of experience and transferable skills.
Pay and working arrangements
Remote employment paying $90–$110 USD per hour through an employer of record. W-2 employment with Cincinnatus LLC or an appropriate international entity; eligibility and local employment arrangements must be confirmed. Part-time commitment of at least 20 weekday hours, with the option to increase to 40 hours per week. Duration and payment schedule should be confirmed.
What happens next
Apply through Find Jobs in AI with your profile and CV. We’ll review your application and, if you’re a good fit, we’ll be in touch about the next steps.