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Mercor · STEM & research

Chemistry Expert (PhD) — AI Safety - review AI outputs in your specialty

Listed on Mercor as “Chemistry Expert (PhD) - AI Safety

$65-$70/hrRemoteContractPaid in USD
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What this actually is

You design problems that stump current AI models, evaluate AI reasoning against the correct answer, write rubrics, and provide expert feedback. Often the highest-paid category because the expertise pool is small. The platform title (Chemistry Expert (PhD) - AI Safety) reflects the rate band and the expertise required, not the day-to-day work.

Can you do this on your visa?

F-2 / F-4 / F-5 / F-6: open. E-1 to E-7: needs concurrent-employment permit. D-2 / D-4 students: S-3 permit, 20 hr/week cap. D-10 / D-8: case by case.

Korean tax on USD income

First 5 years in Korea: foreign-source income only taxed if remitted into Korea. After year 5: worldwide income. Full tax guide.

Original posting from Mercor

About the role

We're hiring PhD‑level chemists to help make advanced AI models safer. You'll apply your scientific expertise to evaluate and strengthen how these models handle specialized chemistry topics. No prior AI/ML experience is required - we'll train you on the workflow.

What you'll do

  • Write expert‑level prompts across specialized chemistry topics.
  • Evaluate and annotate model responses for scientific accuracy, helpfulness, and appropriate handling of sensitive content.
  • Apply structured guidelines to classify prompts and conversations.

What we're looking for

  • A PhD in chemistry or a closely related field - ongoing or completed (e.g., organic, inorganic, analytical, physical, medicinal, or computational chemistry; chemical engineering; materials science).
  • Deep familiarity with modern laboratory and computational techniques in your subfield.
  • Strong scientific reasoning and writing in English.
  • Sound judgment around chemical safety and the responsible handling of dual‑use information.

Nice to have

  • Research or coursework touching on chemical safety/security, synthesis, or hazardous‑materials handling.
  • Experience reviewing, grading, or red‑teaming technical content.

Project Timeline

  • Start date: Immediate
  • Commitment: Part‑time (15-25 hours/week, with flexibility up to 40 hours/week)

Quoted from Mercor’s public listing on 2026-07-07. We don’t edit platform copy; honest framing is in the title and the “what this actually is” block above.