Chemistry Expert (Mexico) for AI Training
Create expert-level chemistry problems based on real simulation, modeling, reaction, and thermodynamic workflows. Review AI-generated answers and write clear feedback that identifies errors and supports better model performance.
- Field
- Chemistry
- Where
- Mexico
- Commitment
- part time
- Asks for
- PhD, Master's
- Posted
- 6 days ago
Pay data for your profession: Science AI trainer jobs · PhD AI trainer jobs · Chemistry AI trainer jobs
How this pay compares
At $42/hr, this role pays more than 4% of the 51 open chemistry roles with a listed pay range, below 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 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
$42/hr
Per week, before tax
$630
Per month, if the work is steady
$2,730
- Tax
- Contract pay arrives with no tax withheld. A US contractor at this rate and these hours would set aside about $690 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.
| Platform | Open | Median | Best-paid open role |
|---|---|---|---|
| Mercor | 11 | $85/hr | Chemistry Domain Expert$90-140/hr |
| Alignerr | 13 | $83/hr | Chemist, PhD$90-120/hr |
| OpenTrain AIthis role | 25 | $75/hr | Computational Materials Science Expert$175/hr |
| Handshake AI | 6 | up to $58/hr | Chemistry 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
Create expert-level chemistry problems based on real simulation, modeling, reaction, and thermodynamic workflows. Review AI-generated answers and write clear feedback that identifies errors and supports better model performance.
- Check answers for technical accuracy, reproducibility, and alignment with established chemistry practice.
- Use your judgment on tasks involving quantum chemistry, molecular dynamics, cheminformatics, reaction modeling, or thermodynamic modeling.
- Work independently in a remote, asynchronous setting and complete assignments at your own pace.
What it pays and takes
- Pay: Up to $42 per hour.
- Hours: 20 or more per week.
- Location: Mexico; Mexican work authorization is required.
- Language: English.
- Education: A PhD in computational, physical, or theoretical chemistry, or an MS plus pharmaceutical or materials industry experience.
- Experience: First-author publications or experience running production-scale simulation or DFT workflows, plus depth in quantum chemistry, molecular dynamics, cheminformatics, or reaction and thermodynamic modeling.
- Communication: Strong writing, careful attention to detail, and the ability to explain complex chemistry clearly.
- Experience with tools such as Gaussian, ORCA, Psi4, VASP, GROMACS, LAMMPS, or RDKit is valuable. Experience with multiple platforms or production simulation or DFT pipelines in pharmaceutical, materials, or energy research can also help.
- This is ongoing, project-based work designed to fit alongside an existing professional or research commitment.
How it works
Apply on OpenTrain with your resume, then complete the application on the hiring site.
About AI training work
AI training uses human-created examples and reviews to help AI systems produce better answers. Chemistry experts contribute field knowledge by writing problems, checking model responses, and explaining where those responses need improvement.
From applying to your first payment on OpenTrain AI
- 1
Create a profile
Create a free OpenTrain profile with your domains, languages and hourly rate.
- 2
Apply
Apply to the listing. Some listings hire through OpenTrain; others send you to the hiring platform.
- 3
Funded milestones
The client funds each milestone before work starts.
- 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 $42/hr since Nov 6, 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
- Physicist (PhD), Atomic, Molecular & Optical PhysicsOpenTrain$100-200/hr
- Materials Science Expert Technical EvaluationOpenTrain$85-185/hr
- Computational Materials Science ExpertOpenTrain$175/hr
- Chemistry ExpertHandshake AIUp to $150/hr
- Chemistry Expert AI Response EvaluatorOpenTrain$150/hr
- Materials Science Expert (AI Safety)OpenTrain$150/hr