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Formal Methods (Lean 4) Expert

$95
per hour
Hourly contract Remote Last verified 21 Jul 2026
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About the Role

Mercor is partnering with a leading AI lab to strengthen expert-level reasoning in frontier models. We are hiring formal-methods experts to author and review challenging formal-verification and theorem-proving problems and to evaluate AI-generated proofs and formalizations for correctness and rigor. Design expert-level problems in formal methods: theorem proving, program verification, and formalization of mathematics

What You'll Do

  • Complete assigned tasks according to the project brief.
  • Collaborate asynchronously with the Mercor research team.
  • Deliver consistent, high-quality work on schedule.

You're a Good Fit If You

  • Strong background in formal verification / interactive theorem proving, with hands-on experience in Lean 4 (and mathlib), Coq, Isabelle, or Agda Familiarity with type theory, mathematical logic, and program verification Strong technical writing and meticulous attention to detail
  • We consider all qualified applicants without regard to legally protected characteristics and provide reasonable accommodations upon request.

Role Highlights

Pay
$95/h
Contract
Hourly contract
Location
Remote
Category
Model evaluation
Posted
9 days ago
Job ID
WE-6151

Pay & Payout

Independent contractor engagement, fully remote. Mercor pays weekly via Stripe or Wise.

Common Questions

Mercor has a reliability rating of very reliable based on the listings we track, with an onboarding time of 1-3 weeks (interview + assessment + trial). See our full Mercor review for the details behind that rating.

Applying takes you to Mercor's own website, where the application is completed. We are not a recruiter or employer and do not process applications directly - we may be recorded as the referring source.

$95/h - Independent contractor engagement, fully remote. Mercor pays weekly via Stripe or Wise.

Complete assigned tasks according to the project brief. Collaborate asynchronously with the Mercor research team. Deliver consistent, high-quality work on schedule.

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