What if your deep knowledge of formal mathematics could directly shape how the most advanced AI systems in the world reason, prove, and think? We're looking for mathematicians with a passion for rigorous proof and formal systems to help build the mathematical foundations that frontier AI depends on.
This is a fully remote, flexible contract role working at the intersection of pure mathematics, logic, and cutting-edge AI research. If you live and breathe formal proof — and especially if you know your way around Lean 4 — this is a rare opportunity to do deeply meaningful technical work on your own schedule.
• Formalize advanced mathematical arguments and theorems in Lean 4, spanning a wide range of mathematical disciplines
• Contribute to the growth and quality of large-scale formal mathematical libraries, including mathlib
• Construct clean, readable,
and well-structured formal proofs that translate informal mathematical reasoning into rigorous machine-checkable form
• Audit and verify existing formal proofs for correctness, completeness, and logical integrity
• Work at the frontier of AI research, helping train the next generation of mathematically capable language models
Who You Are
• Hold a Master's degree or PhD in Mathematics or a closely related field
• Possess a strong background in rigorous mathematical proof writing and logical reasoning
• Have hands-on experience with formal proof assistants — Lean 4 strongly preferred
• Can fluently translate informal mathematical ideas into structured, machine-verifiable formal proofs
• Self-motivated and comfortable working independently in a remote, asynchronous workplace
Nice to Have
• Prior experience with proof verification, theorem proving, or mathematical formalization projects
• Familiarity with mathlib or other large-scale formal mathematical libraries
• Background in data an