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OpenTrainPhDMaster's

Computational Materials Science Researcher Task Author

You will turn computational materials research you have personally completed into clear tasks for evaluating AI models. Each task should include connected subproblems, a Python reference solution, tests, and clear standards for judging the results.

Field
Chemistry
Where
United States, Albania, Algeria, Antigua and Barbuda, Armenia, Australia +89 more
Asks for
PhD, Master's
Posted
yesterday

Pay data for your profession: Science AI trainer jobs · PhD AI trainer jobs · Chemistry AI trainer jobs

How this pay compares

The title points to writing prompts, problems and answers: writing questions, test tasks, rubrics or model answers for a model to learn from. What each kind of AI training work pays

At $100/hr, this role pays more than 78% of the 51 open chemistry roles with a listed pay range, above the median of $83.

Open chemistry roles that ask for a PhD have a median of $79/hr (32 roles).

Among platforms with 10 or more priced chemistry roles, Mercor has the highest median ($85/hr across 11 roles) and OpenTrain AI the lowest ($75/hr across 25).

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

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

$100/hr

Per week, before tax

$1,500

Per month, if the work is steady

$6,500

Tax
Contract pay arrives with no tax withheld. A US contractor at this rate and these hours would set aside about $1,643 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 chemistry 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
Mercor11$85/hrChemistry Domain Expert$90-140/hr
Alignerr13$83/hrChemist, PhD$90-120/hr
OpenTrain AIthis role25$75/hrComputational Materials Science Expert$175/hr
Handshake AI6up to $58/hrChemistry ExpertUp to $150/hr

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

All 57 open chemistry roles →

The full listing

As posted on OpenTrain AI. See the original

The work

You will turn computational materials research you have personally completed into clear tasks for evaluating AI models. Each task should include connected subproblems, a Python reference solution, tests, and clear standards for judging the results.

You will revise your work after structured feedback and may review tasks submitted by other experts in your area.

  • Design original evaluation tasks based on materials research you have implemented, run, debugged, and validated.
  • Create meaningful metrics and review criteria that do not depend on hidden information.
  • Write Python reference solutions and tests that check computational results.
  • Work may involve phase-field or CALPHAD modeling, atomistic simulation, microstructure or diffraction analysis, transport calculations, electronic and quantum materials, semiconductors, metals and alloys, polymers, ceramics, energy materials, or materials informatics.

What it pays and takes

This is flexible independent-contractor work with no fixed weekly schedule. You should be able to work independently and manage your own time.

  • $100 per hour.
  • Approved tasks are described as $200 each and take about two hours per task.
  • Open to candidates in the countries listed for this role, including the United States, Canada, Australia, India, and Vietnam.
  • Professional fluency in English is required.
  • Independent-contractor work authorization without visa sponsorship is required. F-1 students, including OPT and CPT participants, are not eligible.
  • Eligible backgrounds include research-track bachelor's study with research experience, current master's or PhD study, postdoctoral experience, or recent graduation in materials science, physics, chemistry, mechanical engineering, or a closely related field.
  • Hands-on experience writing your own code, preferably in Python, for materials modeling or materials-data analysis is required.
  • You must be able to turn your own computational research into a clear task, reference solution, and test suite.
  • Public code, a thesis, or papers showing work you completed yourself are helpful.

How it works

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

About AI training work

AI training is the human work behind systems that learn from examples, including writing, testing, and reviewing code. OpenTrain helps people find these projects, build a profile, and apply for work that matches their skills.

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 $100/hr since Nov 10, 2026 with no change.

Across OpenTrain AI's chemistry roles, the median listed pay was $70/hr on Nov 1, 2026 (13 roles) and is $75/hr as of Nov 11, 2026 (25 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 chemistry roles

All 57 chemistry roles →