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OpenTrain

Senior Domain Expert, Multi-Discipline AI Research Program

You will help evaluate AI reasoning on complex technical problems in a field where you have deep expertise. Review the duties and qualifications before applying.

Field
Generalist
Where
United States, Albania, Algeria, Antigua and Barbuda, Armenia, Australia +89 more
Commitment
part time
Hours
up to 20/week
Posted
6 days ago

How this pay compares

At $135/hr, this role pays more than 96% of the 206 open generalist roles with a listed pay range, above the median of $60.

Among platforms with 10 or more priced generalist roles, Alignerr has the highest median ($80/hr across 17 roles) and micro1 the lowest ($50/hr across 54).

OpenTrain AI roles that closed since late October stayed listed a median of 31 days (122 roles). OpenTrain AI posted this one 6 days ago.

Computed from 2,746 open roles we track across Mercor, micro1, Handshake AI, Alignerr, Appen and OpenTrain AI, refreshed daily. Midpoints of listed ranges; “up to” ceilings are left out of medians.

What you would earn at this rate

Rate

$135/hr

Per week, before tax

$2,700

Per month, if the work is steady

$11,700

Tax
Contract pay arrives with no tax withheld. A US contractor at this rate and these hours would set aside about $2,958 a month for self-employment tax plus federal income tax at the 12% bracket (25%, before state tax). Outside the US, your own country's rules apply.

Assumes paid hours only; unpaid assessments, onboarding and gaps between projects lower the real figure. Full take-home calculator · Track what you actually earn

Open generalist roles on each platform

The same kind of work, priced on every platform we track, with the best-paid open role on each.

PlatformOpenMedianBest-paid open role
Alignerr17$80/hrFrontier Data Lead – Client Success & AI Partnerships$85-120/hr
Mercor22$63/hrLuxury Automotive Strategy Expert$300-350/hr
OpenTrain AIthis role115$61/hrContract Manager and Negotiator (English)$150/hr
micro160$50/hrMember of Technical Staff, Enterprise AI$300k-700k/yr
Handshake AI24up to $88/hrIntelligence Expert (Bachelor's, Master's and PhDs) - AI TrainerUp to $200/hr

“Up to” rows list only ceilings, so their median is a maximum, not comparable with the range midpoints above them.

All 238 open generalist roles →

The full listing

As posted on OpenTrain AI. See the original

The work

You will help evaluate AI reasoning on complex technical problems in a field where you have deep expertise. Review the duties and qualifications before applying.

  • Design realistic technical scenarios and problem sets in your specialty.
  • Write expert reference answers and grading rubrics.
  • Assess AI-generated work for accuracy, depth, and sound domain judgment.
  • Provide clear technical explanations and structured feedback.

What it pays and takes

  • Pay: $135 per hour.
  • Time: 20 or more hours per week.
  • Work style: Remote, flexible, and asynchronous.
  • Location: Open to candidates in the countries listed for this role.
  • Language: Professional fluency in English.
  • Required background: Current or recent hands-on professional work in at least one relevant specialist field, with experience and education that meet at least one track's requirements.
  • You must write clear technical explanations, reference answers, and evaluation feedback, and work independently in a remote setting.
  • Relevant specialties may include software or systems engineering, formal methods, computational science, machine-learning inference, GPU kernels, enterprise operations, security, hardware design, and creative technology.
  • Experience with technical review, grading, code review, peer review, editing, research publications, or recognized work products is helpful. Track-specific areas may include theorem proving, reverse engineering, cryptanalysis, RTL, CAD, robotics, audio engineering, linguistics, or multimodal design.

How to apply

Apply on OpenTrain with your resume, then complete the application on the hiring site.

About AI training work

AI training is the human work of preparing and reviewing examples that help AI systems learn and improve. OpenTrain is a free platform where people can find AI training and data-labeling roles and start applications.

From applying to your first payment on OpenTrain AI

  1. 1

    Create a profile

    Create a free OpenTrain profile with your domains, languages and hourly rate.

  2. 2

    Apply

    Apply to the listing. Some listings hire through OpenTrain; others send you to the hiring platform.

  3. 3

    Funded milestones

    The client funds each milestone before work starts.

  4. 4

    First payment

    OpenTrain pays out to your connected payout method when the client approves the milestone. It doesn't publish a fixed payout schedule.

Sources: OpenTrain: AI training careers, OpenTrain docs: invoicing and payouts

Full OpenTrain AI profile: watch-outs and the public record →

Pay history

OpenTrain AI has listed this role at $135/hr since Nov 7, 2026 with no change.

Across OpenTrain AI's generalist roles, the median listed pay was $40/hr on Nov 1, 2026 (50 roles) and is $61/hr as of Nov 11, 2026 (114 roles).

What workers report about OpenTrain AI

Anonymous reports from people who applied or worked there: whether they got work, what they were paid and how fast.

Other generalist roles

All 238 generalist roles →