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OpenTrainPhDMaster's

Computational Materials Science Expert

Apply computational materials science and machine learning to research problems such as materials property prediction, materials discovery, and structure-property relationships. You will work with atomistic, electronic, and structural materials datasets and document your methods…

Field
Chemistry
Where
United States, Albania, Algeria, Antigua and Barbuda, Armenia, Australia +89 more
Hours
up to 10/week
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

At $175/hr, this role pays more than 99% 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

$175/hr

Per week, before tax

$1,750

Per month, if the work is steady

$7,583

Tax
Contract pay arrives with no tax withheld. A US contractor at this rate and these hours would set aside about $1,917 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/hrPhysicist (PhD), Atomic, Molecular & Optical Physics$100-200/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

Apply computational materials science and machine learning to research problems such as materials property prediction, materials discovery, and structure-property relationships. You will work with atomistic, electronic, and structural materials datasets and document your methods clearly so the work can be reproduced.

The work includes building, training, and evaluating models from simulation outputs, including density functional theory, molecular dynamics, and Monte Carlo data. You will also contribute to materials informatics workflows linked to high-throughput computational pipelines.

  • Develop predictive models with supervised and unsupervised learning methods.
  • Analyze materials datasets and model results for research applications.
  • Document model assumptions, methods, and technical approaches in a clear, reproducible way.

What it pays and takes

This is a remote, asynchronous, project-based opportunity. Accepted projects are expected to run for 2 to 3 weeks, with an anticipated commitment of 10 to 20 hours per week.

  • Pay: $175 per hour.
  • Location: Remote, with eligibility limited to the countries listed for this role.
  • Language: Professional fluency in English.
  • Education: A master's or PhD in materials science, computational chemistry, physics, computer science, or a related quantitative field.
  • Experience: Demonstrated expertise in both machine learning and computational materials science.
  • Publication: At least one first-author publication in a peer-reviewed journal.
  • Relevant background may include density functional theory, force field development, atomistic simulation, or materials informatics.
  • You should be able to solve technical problems and work independently.
  • Helpful experience includes teaching or assisting with computational physics, chemistry, or materials science courses.
  • Helpful tools and frameworks include CGCNN, MatGL, M3GNet, ALIGNN, VASP, Quantum ESPRESSO, LAMMPS, and ASE.

How it works

Start your application on OpenTrain with your resume. You will then complete the application on the hiring site.

About AI training work

AI training is the human work behind many AI systems, including preparing data, reviewing model outputs, and evaluating technical responses. People with specialized expertise help produce accurate examples and judgments for complex subjects such as materials science.

OpenTrain helps people find AI training and data-labeling projects, build a profile, and apply in minutes. Creating an OpenTrain account is free.

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 $175/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 →