Nuclear Medicine Physicist for AI Safety Red-Team

Obsidian; New York (NY); On-site; USD 120,000 - 180,000; Full time

Job summary

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.

You will write challenging single-turn prompts in domains such as benign, dual-use, and adversarial cases; evaluate responses against a defined policy standard; and compose the reference answer with a written rationale.

Qualifications

• Experience handling medical isotopes in clinical or industrial settings.
• Ability to write clear rationales for complex judgments.
• Familiarity with regulatory quality systems and documentation.

Responsibilities

• Write challenging prompts across benign, dual-use, and adversarial cases.
• Evaluate model responses against a policy standard and document judgments.
• Draft reference answers with written rationale for correct handling.

Skills

Red-teaming

Technical writing

Policy review

Education

Nuclear medicine or radiopharmacy physicist background

Cyclotron or radiochemistry facility RSO background

Medical physicist with brachytherapy source custody

Radiopharmaceutical production and QC under GMP

Authorised Medical Physicist or Authorised User support on medical radioactive materials licence

Job description

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.

You will write challenging single-turn prompts in domains such as benign, dual-use, and adversarial cases; evaluate responses against a defined policy standard; and compose the reference answer with a written rationale.