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Source Security Specialist
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About the Role
Mercor is assembling a panel of radiological safety experts to red-team frontier AI models. The goal is to test whether a model can correctly judge the misuse potential of a technical request — answering legitimate questions fully while refusing genuinely dangerous ones.
What You'll Do
- Write challenging single-turn prompts in your domain, labelled across three levels: benign, dual-use, and adversarial.
- Evaluate the responses that come back against a defined policy standard, and judge whether each was handled correctly.
- Write the reference answer — what a correct response looks like, and the technical reasoning for why.
- This domain lives on the dual-use line more than most. The same isotope underpins cancer therapy and industrial radiography; the same shielding calculation protects a worker and conceals a source. A model that refuses a routine dose question is failing as badly as one that answers a question it shouldn't. Drawing that line reliably is why we need practitioners rather than generalists.
You're a Good Fit If You
- We're looking for people who have assessed how Category 1 and 2 sources actually get stolen, shielded or moved — the security and vulnerability side of a licensed programme, not just its paperwork. What matters most is being able to tell a routine professional question from one that's fishing for something else: the same shielding calculation protects a worker and conceals a source. You will be writing prompts that sit exactly on that line, then judging whether the model held it.
- Examples of relevant backgrounds (ideally with red-teaming experience):
- Security or vulnerability assessment of licensed facilities holding Category 1 and 2 sources
- Physical protection design and review — detect, delay, assess and respond; insider threat considerations
- Source recovery, consolidation or security-upgrade programmes for disused and orphan sources
- Regulatory security inspection and compliance — 10 CFR 37 or national equivalents
- Transport security for radioactive material — routing, escort, tracking and chain of custody
- What this role demands beyond technical depth
Role Highlights
Pay & Payout
Independent contractor engagement. Apply via the link below - Mercor handles onboarding and pays weekly via Stripe or Wise.
Common Questions
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