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Mercor · STEM & research

Computer Science PhD Researchers

Listed on Mercor as “Computer Science PhD Researchers

$70-$90/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 (Computer Science PhD Researchers) 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

Mercor is seeking Computer Science PhD’s (Graduated) for a premier project with one of the world's top AI labs.

In this role, you will contribute your subject matter expertise to a cutting-edge project involving state-of-the-art large language models. Specifically, you will help create high-quality data that will inform the future of AI innovation by coming up with difficult problems in your domain.

You're a good fit if you:

  • Received your undergraduate degree in US/UK/Canada/Western Europe
  • Received your graduate degree at a top US/UK/Canada/Western European university
  • Have high attention to detail
  • Have exceptional written and verbal communication skills
  • Have excellent proficiency in English

Here are more details about the role:

  • The role is ongoing starting in February and continuing with rolling applications
  • Experts are expected to contribute 4-6 tasks per week, each taking several hours to complete
  • The work will require rigorous physics expertise and ability to follow complex instructions

Screening Process:

  • You will need to complete a short AI interview - the whole application process should last 20-40 minutes

Apply today and leverage your leadership and technical expertise to advance cutting-edge AI models!

Quoted from Mercor’s public listing on 2026-08-04. We don’t edit platform copy; honest framing is in the title and the “what this actually is” block above.