Health Physicist

🔥 16 minutes ago

🇺🇸 United States – Remote

💵 $65 - $75 / hour

⏳ Contract/Temporary

🟡 Mid-level

🟠 Senior

👻 Ghost score 5%

What it means: how likely this posting is sitting open without active hiring.How to read it: 60% or higher means we think this is a ghost. Lower scores are less of a worry.How we score it: age, reposts, open roles vs team size, how fast jobs close, and whether pay is listed.Fine print: an estimate from public data, not a judgment of the company. Real jobs can score high, so treat it as a hint, not a fact.

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Mercor

WebsiteLinkedInAll Job Openings

51 - 200 employees

Founded 2023

🔥 Funding within the last year

💰 $350M Series C - Mercor on 2025-10

Mercor is a company for which no descriptive text was provided in the input. Additional information (products, services, target customers, or industry specifics) is needed to create an accurate summary and select appropriate industries.

📋 Description

• Write challenging single-turn prompts in radiological safety and health physics • Label prompts as benign, dual-use, or adversarial • Evaluate model responses against a defined policy standard • Judge whether responses handled technical requests correctly • Write reference answers and explain the technical reasoning • Red-team frontier AI models for misuse potential in radiological safety scenarios • Produce written rationales that non-specialists can follow • Read and write about field-specific misuse scenarios for sustained periods

🎯 Requirements

• Background as an operational health physicist at a DOE site, national laboratory, or reactor facility, including survey, assay, and contamination control • Experience as an internal dosimetry or bioassay specialist, including intake assessment, dose reconstruction, and committed dose • Experience in decommissioning and D&D health physics, including characterisation surveys, MARSSIM, and release criteria • Experience in accelerator or reactor health physics, including activation products, neutron fields, and shielding design and verification • Experience with dose planning for high-hazard work, including RWP development, ALARA reviews, and hot-cell and glovebox operations • Ability to distinguish routine professional questions from requests probing for misuse • Strong writing skills and ability to provide written rationales understandable to non-specialists • Prior technical writing, published research, or expert witness experience is a strong signal • Red-teaming experience ideally • Must not use classified or export-controlled information, NDA-covered information, or information subject to prepublication review obligations • Full legal name, email address, and LinkedIn URL required to apply

🏖️ Benefits

• Up to $250 for each successful referral • No limit on the number of referrals • Reasonable accommodations upon request • Ability to pause or step away from misuse-scenario content at any point without penalty