Computational Chemistry AI Evaluation Expert
Create challenging chemistry problems based on real simulation, modeling, and reaction workflows. Review AI-generated answers and explain whether their methods and conclusions are scientifically sound.
- Field
- Chemistry
- Where
- United Kingdom
- Commitment
- part time
- Hours
- up to 20/week
- 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
The title points to rating and reviewing ai output: judging a model's answers or code against guidelines, such as which of two is better or whether one is correct and safe. What each kind of AI training work pays
At $65/hr, this role pays more than 23% 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
$65/hr
Per week, before tax
$1,300
Per month, if the work is steady
$5,633
- Tax
- Contract pay arrives with no tax withheld. A US contractor at this rate and these hours would set aside about $1,424 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 challenging chemistry problems based on real simulation, modeling, and reaction workflows. Review AI-generated answers and explain whether their methods and conclusions are scientifically sound.
- Check responses for technical accuracy, reproducibility, and alignment with established chemistry practice.
- Write structured feedback that identifies weaknesses and can help improve AI model performance.
- Complete project tasks remotely and asynchronously.
What it pays and takes
- Pay: Up to $65 per hour.
- Time commitment: 20+ hours per week. The work is project-based and has no set schedule.
- Location: Open to candidates in the UK.
- Expertise in computational, physical, or theoretical chemistry.
- A PhD in a relevant chemistry discipline, or a master's degree combined with pharmaceutical or materials industry experience.
- First-author publications or experience running production-scale simulation or DFT workflows.
- Demonstrated depth in at least two of these areas is encouraged: quantum chemistry, molecular dynamics, cheminformatics, and reaction or thermodynamic modeling.
- Strong written communication and the ability to explain complex chemistry concepts clearly.
- Fluent written English and the ability to work independently in a remote, asynchronous setting.
- Experience with tools such as Gaussian, ORCA, Psi4, VASP, GROMACS, LAMMPS, and RDKit is helpful. Production simulation or DFT pipeline experience in pharmaceutical, materials, or energy research is also useful.
How it works
Apply on OpenTrain with your resume, then complete the application on the hiring site.
About AI training work
AI training work uses human-created examples and feedback to help improve AI systems. Experts are paid to assess technical answers and explain where they do or do not match real scientific practice.
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 $65/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.
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- Chemistry Expert AI Response EvaluatorOpenTrain$150/hr
- Materials Science Expert (AI Safety)OpenTrain$150/hr