Log in Sign up free
Apply now

First seen by our source: 21 days ago

Radiological Security Specialist - Expert

@ Mercor

View all jobs Website

Toronto, Ontario

$65–$75/hr
Apply now
SIGNALS

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

ResearchWork independentlyMeet deadlinesInspectionRegulatory complianceTechnical writing
Source and dates

Source type not verified · manatal

Employer posting date
Not provided
First seen by our source
2026-10-17
Source record updated
2026-10-17

These dates describe the source record, not a live verification that the employer is still hiring. Check the original posting.

Job details

SenioritySenior
DepartmentResearch & science
Travelair: none · ground: none
Work settingHome
PositionMostly sitting
Physical demandsphysical low · computer high

Summary and details written by AI from the posting; the employer’s posting is the authority.

Apply now

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.

View all jobs Website

Mercor is defining the future of work. We connect human expertise with leading AI labs and enterprises to train frontier models.

FieldValue
IndustrySoftware Development
Company size51-200 employees
HeadquartersSan Francisco, California
Organization typePrivately Held
Year founded2023
Open jobs on Jobsy1,626
LinkedInView page
Job description

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.

Similar jobs

  • Radiological Security Specialist - Expert

    Toronto, ON
    $65–$75/hr

    Mercor

    Candidates need hands-on security or vulnerability assessment experience at facilities holding Category 1 and 2 sources, plus knowledge of physical protection, source recovery programs, 10 CFR 37 compliance and radioactive material transport security.

    Research, Work independently, Meet deadlines, Inspection, Regulatory compliance, Technical writing

  • Sr. Analyst, Consumer Insights, Tim Hortons

    Toronto, ON
    Full Time

    Restaurant Brands International

    2+ YOECandidates need 2+ years of consumer insights experience, strong data analysis, advanced PowerPoint and Excel skills, and clear written and verbal communication. Quick-service restaurant experience is an asset.

    Excel, PowerPoint

  • Sales Development Representative

    Toronto, ON

    Postmedia Network Inc: (TSX:PNC.A, PNC.B), is a Canadian news media company representing more than 120 brands across multiple print, online, and mobile platforms.

    1+ YOEPostmedia Network Inc needs candidates with at least one year of professional experience, a record of meeting sales goals, and strong phone, writing and listening skills. Experience with CRM software and cold calling is required, and candidates must be legally eligible to work in Canada.

    HubSpot, CRM

  • Personal Banking Associate

    Toronto, ON

    Bank of Montreal

    1+ YOECandidates need one to two years of relevant experience or certification, plus some consultative sales or customer service background. Bank of Montreal also requires investment sales registration completed or in progress within 12 months, and strong communication, teamwork and problem-solving skills.

    Tablets, Online banking tools

    Senior Analyst

    Toronto, ON

    Bank of Montreal

    4+ YOECandidates need about 4 to 6 years of relevant experience and a post-secondary degree in a related field, with an accounting designation completed or nearly completed. Strong communication, analytical, influence and data-driven decision-making skills are required.

  • Senior Director, Content

    Toronto, ON
    $120k–$170k/yrRemoteFull Time

    Cossette

    10+ YOECossette needs a candidate with 10+ years of social content production and leadership, including Director-level experience in an agency or studio. Candidates need hands-on skills in directing, shooting and editing short-form video, deep knowledge of social platforms, and strong mentoring, workflow and client communication abilities.

    Professional editing suites, AI-assisted production tools

  • Coordinator, Search

    Toronto, ON
    $40k–$45k/yrRemoteFull Time

    Cossette Media

    Candidates need under one year of paid search experience, intermediate to advanced skills in Microsoft Office and Google Suite, and strong analytical, math and writing abilities. A basic understanding of digital advertising and general knowledge of Google Ads and Microsoft Ads are expected.

    Google Ads, Microsoft Ads, Excel, PowerPoint, Word, Google Sheets

  • Legal Entity Controller Analyst

    Toronto, ON
    Full Time

    BC Canada INC

    Candidates need a CPA or equivalent and a bachelor's degree in accounting, finance or a related field. Experience in financial control, regulatory reporting or auditing in banking or financial services is needed, along with strong Microsoft Office skills.

    Microsoft Excel, Microsoft Word, Microsoft PowerPoint

Locations & environments

Locations

All of CanadaRemote · Hybrid · On-site · Field

Pro tip: add remote jobs to widen your search.

Exclude locations

Workplace type

Company jobs in these results

These are this company’s jobs loaded in your current search. The company may have more openings.