First seen by our source: 21 days ago
Radiological Security Specialist - Expert
@ Mercor
Toronto, Ontario
Overview
Mercor is hiring a remote contract Source Security Specialist at $65–$75 per hour to write and review radiological safety prompts for AI model evaluation. The work involves labelling prompts as benign, dual-use or adversarial, judging AI responses against a policy standard, and writing reference answers. Candidates must show experience securing licensed radioactive source facilities and knowledge of 10 CFR 37 and transport security.
Pay:
$65–$75 an hour
Responsibilities:
- Write single-turn radiological safety prompts labelled benign, dual-use and adversarial
- Evaluate AI model responses against a defined policy standard
- Write reference answers with technical reasoning
- Collaborate with experts to separate routine and dangerous queries
- Work independently and asynchronously to meet deadlines
Requirements summary:
- Security or vulnerability assessment of facilities holding Category 1 and 2 sources
- Expertise in physical protection design and insider threat considerations
- Background in source recovery, consolidation or security-upgrade programs
- Familiarity with 10 CFR 37 inspection and compliance
- Knowledge of transport security for radioactive material
- Preferred: red-teaming, technical writing, published research or expert witness experience
Tools & skills
Source and dates
Source type not verified · manatal
- Employer posting date
- Not provided
- First seen by our source
- 2026-10-16
- Source record updated
- 2026-10-16
These dates describe the source record, not a live verification that the employer is still hiring. Check the original posting.
Job details
| Seniority | Senior |
| Department | Research & science |
| Travel | air: none · ground: none |
| Work setting | Home |
| Position | Mostly sitting |
| Physical demands | physical low · computer high |
Summary and details written by AI from the posting; the employer’s posting is the authority.
Mercor
Saved company profile
Historical company information from a saved The Jobs API profile (LinkedIn/Crunchbase fields). It is not live-verified; figures may have changed. Missing values remain unknown.
We connect human expertise with leading AI labs and enterprises to train frontier models.
Full company description
Mercor is defining the future of work. We connect human expertise with leading AI labs and enterprises to train frontier models.
- LinkedIn followers
- 654,507
- People associated on LinkedIn
- 5,250
- Reported office locations
- San Francisco, California 94105, US
- Business categories
- Employment
- Software
- Recruiting
- Data Collection and Labeling
- Artificial Intelligence (AI)
- Machine Learning
- Other recorded names
- Mercor
- Profile identifies a recruitment agency
- Yes
- Reported total investment
- 483,600,000
Currency and observation date were not supplied; this is not a current valuation or a funding round.
Mercor is defining the future of work. We connect human expertise with leading AI labs and enterprises to train frontier models.
| Field | Value |
|---|---|
| Industry | Software Development |
| Company size | 51-200 employees |
| Headquarters | San Francisco, California |
| Organization type | Privately Held |
| Year founded | 2023 |
| Open jobs on Jobsy | 1,626 |
| View page |
About the job
Mercor connects elite creative and technical talent with leading AI research labs. Headquartered in San Francisco, our investors include Benchmark, General Catalyst, Peter Thiel, Adam D'Angelo, Larry Summers, and Jack Dorsey.
Position: Source Security Specialist
Type: Contract
Compensation: $65–$75/hour
Location: Remote
Role Responsibilities
- Write challenging single-turn prompts in radiological safety, labeled as benign, dual-use, and adversarial.
- Evaluate AI model responses against a defined policy standard to ensure correct handling.
- Write reference answers with technical reasoning for correct responses.
- Collaborate with experts to draw reliable lines between routine and dangerous queries.
- Work independently and asynchronously to meet deadlines and improve AI model performance.
Qualifications
Must-Have
- Experience in security or vulnerability assessment of licensed facilities holding Category 1 and 2 sources.
- Expertise in physical protection design and review, including insider threat considerations.
- Background in source recovery, consolidation, or security-upgrade programs.
- Familiarity with regulatory security inspection and compliance, such as 10 CFR 37.
- Knowledge of transport security for radioactive material.
Preferred
- Red-teaming experience.
- Prior technical writing, published research, or expert witness experience.
Application Process (Takes 20–30 mins to complete)
- Upload resume
- AI interview based on your resume
- Submit form
Resources & Support
- For details about the interview process and platform information, please check: https://talent.docs.mercor.com/welcome
- For any help or support, reach out to: [email protected]
PS: Our team reviews applications daily. Please complete your AI interview and application steps to be considered for this opportunity.
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