Posted over 30 days ago. Roles like this often stay open for a while, so it's still worth applying.
Formal Methods (Lean 4) Expert at Mercor
posted 3 months agoFormal Methods Expert (Lean 4) | $95/hr | Worldwide Remote
Mercor is partnering with a leading AI research lab to enhance expert-level reasoning in frontier AI models. We are seeking experienced formal methods specialists to design rigorous theorem-proving problems, review peer-authored content, and evaluate AI-generated proofs for correctness and mathematical rigor.
What You'll Do
- Design expert-level problems spanning theorem proving, program verification, and formalization of mathematics
- Review peer-authored problems for clarity, genuine difficulty, and ground-truth correctness
- Evaluate and compare AI model outputs — including proofs, tactics, and formalizations — delivering Accept / Revise / Reject verdicts with detailed written rationale
Ideal Qualifications
- Strong background in formal verification and interactive theorem proving
- Hands-on experience with Lean 4 (and mathlib), Coq, Isabelle, or Agda
- Solid understanding of type theory, mathematical logic, and program verification
- Excellent technical writing skills and meticulous attention to detail
This is a flexible, remote contractor role ideal for researchers, academics, or engineers with deep expertise in formal methods who want to contribute to cutting-edge AI development.
How to apply for this role
- Upload your resume — keep it up-to-date and in English. Mercor will auto-fill your profile from it.
- Complete the AI interview — a 15-minute conversation about your experience. Be ready to discuss specific projects and challenges you've solved.
- Submit your application — only about 20% of applicants finish all the steps, so completing yours puts you well ahead.