Radioactive Materials & Health Physics Expert (AI Safety)
Listing checked November 4, 2026 · pay as published by AfterQuery
Key details
- Pay
- $150/hr
- Location
- Remote
- Job type
- contract
- Posted
- November 4, 2026
Overview
AfterQuery brings in health physics specialists to sharpen how AI models handle questions about radioactive materials. Your work centers on evaluation prompts: writing ones that sit near the safe and unsafe boundary, then judging the ones other experts submit. Every call needs your written reasoning, covering what makes a request acceptable and where it crosses a line. Radiation safety rules, radiochemistry fundamentals and health physics practice all feed that analysis. Reviewers return structured feedback, and you rework each task until the judgment holds up.
What You'll Do5
- Draft prompts and scenarios that probe the thin edge between legitimate and dangerous requests in radioactive materials work.
- Read submissions from other domain experts and classify each one as safe or unsafe.
- Write the technical analysis behind every label, naming the physics and the handling rules that justify the call.
- Rework tasks after reviewer feedback arrives, tightening the reasoning until the judgment stands.
- Keep your labels consistent across a full batch so the boundary the model learns stays stable.
Requirements4
- Citizen of a Five Eyes country: the United States, United Kingdom, Canada, Australia or New Zealand.
- Physically located in one of those five countries for the whole engagement.
- Master's degree or higher in health physics, radiochemistry, nuclear engineering or a closely related discipline.
- Ability to lay out the technical basis of a safety judgment in clear, precise prose.
Preferred Qualifications3
- Prior work in AI evaluation, red teaming or data annotation.
- Practice as a radiation safety officer, health physicist or radiochemist.
- Background in radioactive source or waste management.
Who Should Apply
Health physicists, radiochemists and nuclear engineers with a graduate degree and citizenship in a Five Eyes country. The role rewards people who can defend a safety call in writing and who want task-based work they fit around current practice.
Salary Insight
The listing quotes a $150/hr equivalent, paid at $85 for each approved task. Because compensation follows approved output rather than hours logged, your effective rate depends on how fast you turn around accurate, well-argued judgments.
Pay and demand for AI Training roles
Market estimates from live NearSkill listings — separate from this job's published terms.
This role · as published
$150/hr
Taken from the listing itself.
Typical pay · estimated
$65/hour
Median of 1,134 similar roles that publish pay · 300 publish only a top rate; those count at the rate they gave
Most AI Training roles pay $38–$92 per hour. This role's pay sits above 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%
- data annotation14%
- ai training13%
- llm evaluation12%
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