What AI training jobs are there for PhDs?

AI labs hire PhDs and PhD students to write research-level questions their models get wrong, and to grade model answers step by step in their own field. The work is remote and hourly, and listings that ask for a PhD pay more than AI training as a whole. Most are in science, STEM and math.

Listings asking for a PhD
151
in the title or requirements
Typical top rate, PhD listings
$90/hr
vs $70/hr for all
At $100+/hr
54
36% of priced PhD listings
Platforms hiring
7
with a PhD listing open

Which PhD fields are in demand for AI training?

PhD listings by kind of work
FieldListingsShareTypical top rate
Science5939%$90/hr
STEM4731%$60/hr
Math1913%$200/hr
Coding117%$90/hr
Medical53%$100/hr
General43%$65/hr
Writing32%$65/hr
Finance21%$90–150/hr
Law11%up to $90/hr

AI training jobs for PhDs open now

Search "PhD" on the job board

Highest top rate first, at most five per platform in the first thirty. Apply opens the platform's own page.

  1. Research Scientist – Computer Science & Computational Physics

    micro1ScienceRemote, no country statedFull time

    $100–400/hr

    Apply for Research Scientist – Computer Science & Computational Physics on micro1 (opens in a new tab)
  2. $170–200/hr

    Apply for Mathematician – Formal Proof & AI Foundations (Remote Contract) on Alignerr (opens in a new tab)
  3. $170–200/hr

    Apply for Mathematician – Formalization & AI Foundations (Remote Contract) on Alignerr (opens in a new tab)
  4. $170–200/hr

    Apply for Mathematician – Formal Systems & AI Foundations (Remote Contract) on Alignerr (opens in a new tab)
  5. $170–200/hr

    Apply for Mathématicien(ne) – Formalisation & Fondements de l'IA (Contrat à distance) on Alignerr (opens in a new tab)
  6. $170–200/hr

    Apply for Mathematician – Formal Proof & AI Research (Remote Contract) on Alignerr (opens in a new tab)
  7. $200/hr

    Apply for Clinical Survey Research & Methodology Expert (Physician / PhD) on Mercor (opens in a new tab)
  8. Physics Expert PhD (Statistical Physics / Quantum Information / Condensed Matter)

    micro1MathFully Remote, Open to candidates worlwidePart time

    $100–200/hr

    still listed today
    Apply for Physics Expert PhD (Statistical Physics / Quantum Information / Condensed Matter) on micro1 (opens in a new tab)
  9. Physics Expert (PhD / Postdoc)

    micro1ScienceWorldwide

    $100–200/hr

    still listed today
  10. Aerospace Engineering Expert

    micro1STEMRemote, no country stated

    $85–185/hr

  11. Principal Engineer / Professor – Technical Expert

    micro1STEMRemote, no country stated

    $85–185/hr

    Apply for Principal Engineer / Professor – Technical Expert on micro1 (opens in a new tab)
  12. PhD in Quantitative Finance, Remote AI Research Evaluator

    BraintrustFinanceUnited States +7Full time

    $50–150/hr

    Apply for PhD in Quantitative Finance, Remote AI Research Evaluator on Braintrust (opens in a new tab)
  13. STEM PhD Expert for AI Reasoning & Evaluation

    BraintrustSTEMUnited States +7Full time

    $50–150/hr

  14. Mathematics Domain Expert

    MercorMathUnited States

    $90–140/hr

  15. Physics Domain Expert

    MercorScienceUnited States

    $90–140/hr

  16. Chemistry Domain Expert

    MercorScienceUnited States

    $90–140/hr

  17. Biology & Life Sciences Domain Expert

    MercorScienceUnited States

    $90–140/hr

  18. Computational Biologist

    DataAnnotationScienceUnited States +4

    up to $125/hr

  19. Drug Discovery Scientist

    DataAnnotationScienceUnited States +4

    up to $125/hr

  20. Experimental Biologist

    DataAnnotationScienceUnited States +4

    up to $125/hr

  21. Python (ML-Focused) Team Lead

    SME CareersCodingUnited States

    up to $120/hr

  22. Astronomer Quality Assurance Lead (QAL)

    SME CareersScienceUnited States

    up to $110/hr

  23. Data Scientist Team Lead

    SME CareersCodingUnited States

    up to $110/hr

  24. Electrical Engineer

    SME CareersSTEMIndia +16

    $40–100/hr

  25. Biomedical Engineer

    SME CareersMedicalIndia +20

    $40–100/hr

  26. Biology PhD Expert – AI Annotation

    BraintrustScienceUnited States +7Part time

    $40–90/hr

  27. CFD Engineer – AI Trainer

    MindriftSTEM10 country versionsIndia +61Part time

    $9–69/hr

  28. CAD Engineer – AI Trainer

    MindriftSTEM10 country versionsIndia +60Part time

    $9–69/hr

  29. CAD Engineer – AI Trainer

    MindriftSTEM10 country versionsIndia +60Part time

    $9–69/hr

  30. CFD Engineer – AI Trainer

    MindriftSTEM10 country versionsIndia +61Part time

    $9–69/hr

Search "PhD" on the job board

Which platforms hire PhDs?

PhD listings by platform
PlatformListingsTypical top rateOpen worldwide
Alignerr49$90/hr0
SME Careers28$75/hr0
micro125$120/hr15
Mindrift22$31/hr0
Mercor21$100/hr0
Braintrust3$150/hr0
DataAnnotation3$125/hr0

What does a PhD do in AI training?

  • Write hard questions. Problems a model fails on, with a worked answer you can defend. Labs use them to test and train reasoning.
  • Grade model answers. Check each step of a proof, derivation or analysis and say where it goes wrong.
  • Build rubrics. Write the criteria a good answer must meet, so other graders and models can be scored against them.

It is short, focused contract work. It doesn't need ML knowledge; it needs the depth in your field that your PhD gave you.

Can PhD students apply, or only graduates?

Many listings take current PhD students or ask for "Masters or PhD". Some, especially in math and physics, want a finished doctorate or publications. Read the requirements in each listing's Quick look before you apply. In the US, Handshake AI runs a fellowship aimed at master's and PhD students; international students need work authorization such as CPT or OPT.

Other questions people ask

How much do PhD AI training jobs pay?

The typical top rate on listings that ask for a PhD is $90/hr, and 54 advertise $100/hr or more.

Which PhD fields pay the most?

On today's PhD listings, math, medicine and science have the highest typical top rates. See the field table above for every field.

Do I need to know machine learning?

No. You are hired for your field. The platform trains you on its task format during onboarding.

Is it OK to do this alongside a PhD stipend?

Check your funding terms and, if you are on a visa, your work authorization first. Some stipends limit outside work.

What do PhD listings test you on?

Usually a subject test or an AI interview on your research area, plus a writing sample. See getting accepted on Mercor.