
Chemistry Expert - Remote Contract (Masters/PhD)
Listing checked October 29, 2026 · pay as published by AfterQuery
Key details
- Pay
- $75/hr
- Location
- Remote
- Job type
- contract
- Posted
- January 2, 2026
Overview
AfterQuery, a YC-backed startup, hires chemists to build and grade the kind of hard chemistry problems that push AI models toward real scientific reasoning. Your day splits between writing graduate-level and PhD-level questions with worked solutions and reviewing model answers for accuracy against chemical principles. The work runs project by project, with hours you set yourself and no requirement to sit in an office. Backgrounds in organic, physical, or analytical chemistry all have a place here, and prior exposure to AI or ML settings helps you settle in faster.
What You'll Do7
- Write advanced chemistry problems and full worked solutions that demand the kind of reasoning expected at graduate and doctoral level.
- Review model answers against accepted chemical principles and flag where the reasoning breaks down.
- Give written feedback that sharpens both the question set and the model's grasp of difficult concepts.
- Cover topics across organic, inorganic, physical, and analytical chemistry rather than staying inside one subfield.
- Check each problem for a defensible solution path, unambiguous wording, and a clear correct answer.
- Apply your own research or lab experience to ground prompts in realistic chemical scenarios.
- Work through assigned batches on a project basis and hit agreed turnaround dates.
Requirements7
- Masters or PhD in Chemistry, Chemical Engineering, Biochemistry, or a closely related discipline.
- At least two years in academic research, industrial R&D, or applied chemistry work.
- Record of designing experiments and interpreting complex datasets with accuracy.
- Strong critical writing skills, including the ability to explain a solution step by step.
- Command of undergraduate through advanced material across several branches of chemistry.
- Published papers or technical reports that show a habit of clear scientific communication.
- Comfort working alongside AI or ML teams, or in interdisciplinary settings, is a plus.
Who Should Apply
Chemists holding a Masters or PhD who have spent two or more years in research or industrial labs and can write rigorous problems across organic, inorganic, physical, and analytical chemistry. A publication record and ease with AI tooling separate the strongest applicants.
Salary Insight
The rate is $75.00 per hour, and the listing mentions performance incentives on top of it. For expert chemistry annotation and problem authoring, that figure sits in the upper band of what PhD-level subject-matter work typically pays.
Pay and demand for AI Training roles
Market estimates from live NearSkill listings — separate from this job's published terms.
This role · as published
$75/hr
Taken from the listing itself.
Typical pay · estimated
$68/hour
Median of 1,191 similar roles that publish pay · 300 publish only a top rate; those count at the rate they gave
Most AI Training roles pay $38–$95 per hour. This role's pay falls inside that range.
Rates shown per hour. Yearly and monthly pay converted; one-time fees and non-USD pay are not included.
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Most requested skills · share of roles
- ai evaluation15%
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