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OpenTrain AI

Math Reasoning Evaluator - BS/MS/PhD in Mathematics (Top-100 Univ. preferred)

OpenTrain AI · Remote · Worldwide · Posted Jun 8, 2026

Apply for this job Hourly · $80/hr

Qualifications (must-have): You hold (or are pursuing) a BS, MS, or PhD in Mathematics (or Mathematical Statistics/Applied Math) from a top-100 university. This role is for mathematically specialized candidates—not generalists. You can write rigorous, step-by-step solutions in clear C1+ English and spot subtle conceptual, methodological, and computational errors. Background in research, analytical writing, debate, or programming is preferred; RLHF/model-evaluation experience is a plus.

What you’ll do: Review AI-generated math responses; judge correctness, reasoning depth, and clarity; identify errors in proofs, derivations, and calculations; fact-check quantitative claims; author exemplar solutions that model correct methods; and rate/compare multiple responses using detailed rubrics.