Mathematics Domain Expert

AI Work Expert; United States; Remote; USD 124,000 - 193,000; Full time

Job summary

Mercor is seeking senior mathematicians to improve how frontier AI models reason about real mathematical research. You will review, write problem specifications, and craft rigorous reference solutions and proofs that define what correctness looks like, while designing benchmarks that test genuine improvement.

This fully remote role in the United States requires a PhD in mathematics or a closely related field, a strong publication record, and hands-on experience with large language models to

Qualifications

• PhD in mathematics, applied mathematics, statistics, operations research, or a closely related field.
• Strong record of peer-reviewed publications is a plus.
• Excellent written communication and precise feedback required.
• Hands-on use of large language models to inform judgments.

Responsibilities

• Expert review: assess mathematical tasks and model outputs for rigor and correctness.
• Write precise problem statements, reference solutions, and proofs that define correctness.
• Design benchmarks and evaluation sets for advanced mathematical reasoning.

Skills

AI fluency

Communication

Analytical reasoning

Peer review

Education

PhD in mathematics / applied mathematics / statistics / OR

Job description

# Mathematics Domain Expert$140per hourContractor Remote Last verified 1 Nov 2026Listed on Mercor mercor.comApplyApplyReferral link. You pay nothing; we may earn a fee.Affiliate disclosureWork Expert (WE) is an independent publishing and referral website. We are not a recruiter, hiring manager, agent or employer, and we are not affiliated with or endorsed by Mercor. Applying takes you to the platform's own website, where we may be recorded as the referring source. We may receive a referral fee at no additional cost to you. Read our full affiliate disclosure →## About the RoleWe are looking for senior mathematicians to improve how frontier AI models reason about real mathematical research. Your mathematical judgment is the substance of this role. You will review the quality of mathematical reasoning tasks and model outputs, write the problem specifications and reference solutions and proofs that define what \"correct\" looks like, and design benchmarks that show whether a model is genuinely improving. We are looking for a practicing specialist rather than a generalist. This role is fully remote.## What You'll Do* Expert review: Assess mathematical tasks and model outputs, catching gaps in proofs, unjustified steps, incorrect generalizations, and arguments that read well but would not survive peer review.* Problem specs and reference solutions: Write precise problem statements and rigorous reference solutions and proofs that reflect how research mathematics is actually done.* Benchmarks: Design challenging, research-level problems and evaluation sets in your area of specialization.* Calibration: Work with other researchers and experts in adjacent fields to turn tacit expert judgment into explicit, teachable criteria.## You're a Good Fit If You* Education: PhD in mathematics, applied mathematics, statistics, operations research, or a closely related field.* Seniority: A faculty appointment, principal investigator, staff or senior scientist, or an equivalent senior research role at a university, national laboratory, or research organization.* Domain depth: Genuine specialization in at least one area, for example analysis and PDE, algebra and number theory, geometry and topology, probability and statistics, or applied mathematics and optimization.* Research record: A strong peer-reviewed publication record. Recognition such as competitive fellowships or awards is a plus.* AI fluency: Hands-on use of large language models in your work, and the judgment to tell a sound argument from a plausible-sounding wrong one.* Communication: Excellent written communication and the ability to give precise, well-structured feedback.* Location: Based in the United States.Get ready for MercorDesign a resume for Mercor Prepare for the Mercor interview## Role HighlightsPay (stated by Mercor)$90-$140/hContractContractorLocationRemoteCategoryResearchPosted5 days agoJob ID## Pay & PayoutIndependent contractor engagement. Apply via the link below - Mercor handles onboarding and pays weekly via Stripe or Wise.