Sign up to access all features of our service.
  • Job search
  • Favorites
  • Create a CV
    New
  • Salaries
  • Subscriptions

AI Safety Practitioner - Expert Evaluator

$60 - $70 per hour
London
  • Remote job

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: AI Safety Practitioner

Type: Contract

Compensation: $60–$70/hour

Location: Remote

Role Responsibilities

  • Evaluate AI-generated responses for safety, factual accuracy, policy compliance, and overall quality.
  • Review content involving misinformation, political persuasion, self-harm, violence, cyber, biosecurity, and other sensitive domains.
  • Apply and refine evaluation rubrics for RLHF , SFT , and AI safety benchmarking .
  • Identify unsafe outputs, hallucinations, reasoning failures, and policy violations.
  • Provide structured feedback to improve model alignment and safety performance.
  • Collaborate with AI researchers and safety teams on ongoing evaluation initiatives.

Qualifications

Must-Have

  • Bachelor's degree or higher in Journalism, Communications, Psychology, Sociology, Public Policy, Law, Biology, Chemistry, Computer Science, or a related discipline.
  • 5+ years of professional experience in AI Safety , Trust & Safety, journalism, public policy, scientific research, security, or a related field.
  • Excellent written English , critical thinking, and analytical reasoning skills.
  • Ability to consistently evaluate nuanced and policy-sensitive scenarios.

Preferred

  • Experience with AI Safety , RLHF , SFT , Trust & Safety, or AI evaluation.
  • Familiarity with safety policies, content moderation, or evaluation rubric development.
  • Experience reviewing complex, high-risk, or ambiguous content.

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:
  • For any help or support, reach out to:

PS: Our team reviews applications daily. Please complete your AI interview and application steps to be considered for this opportunity.

Vacancy posted 1 day ago
Similar jobs that could be interesting for youBased on the AI Safety Practitioner - Expert Evaluator in London vacancy
  • $80 - $120 per hour

     ...Mercor connects elite creative and technical talent with leading AI research labs. Headquartered in San Francisco, our investors...  ..., and Jack Dorsey . Position: Software / AI / IT / data Evaluator Type: Contract Compensation: $80–$120/hour... 
    Suggested
    Remote job
    Summer work

    Mercor

    London
    2 days ago
  • $120 - $170 per hour

     ...creative and technical talent with leading AI research labs. Headquartered in San...  ...Jack Dorsey . Position: Data Science Expert Type: Contract Compensation...  ...~ Prior experience with AI training , evaluation, or human-data projects. Application... 
    Suggested
    Remote job
    Summer work

    Mercor

    London
    1 day ago
  • $70 - $84 per hour

     ...creative and technical talent with leading AI research labs. Headquartered in San...  ..., and Jack Dorsey . Position: AI Safety Red Teamer Type: Contract...  ...hallucinations, and policy failures. Evaluate model robustness across misinformation, cyber... 
    Suggested
    Remote job
    Summer work

    Mercor

    London
    6 days ago
  • $48 - $62 per hour

     ...Mercor connects elite creative and technical talent with leading AI research labs. Headquartered in San Francisco, our investors...  ...Angelo , Larry Summers , and Jack Dorsey . Position: AI Safety Experts — English & Dutch Type: Contract Compensation:... 
    Suggested
    Remote job
    Summer work

    Mercor

    London
    22 hours ago
  • $80 - $120 per hour

     ...creative and technical talent with leading AI research labs. Headquartered in San...  ...Position: Pricing / ROI / revenue economics Evaluator Type: Contract Compensation...  .... Collaborate with subject matter experts to ensure consistency and domain relevance... 
    Suggested
    Remote job
    Summer work

    Mercor

    London
    2 days ago
  • $80 - $120 per hour

     ...Mercor connects elite creative and technical talent with leading AI research labs. Headquartered in San Francisco, our investors...  .... Position: Investor materials / fundraising / pitchbook Evaluator Type: Contract Compensation: $80–$120/hour... 
    Remote job
    Summer work

    Mercor

    London
    3 days ago
  • $80 - $120 per hour

     ...Mercor connects elite creative and technical talent with leading AI research labs. Headquartered in San Francisco, our investors...  ...Jack Dorsey . Position: Biology / environmental science Evaluator Type: Contract Compensation: $80–$120/hour... 
    Remote job
    Summer work

    Mercor

    London
    3 days ago
  • $80 - $150 per hour

     ...creative and technical talent with leading AI research labs. Headquartered in San...  ...and Jack Dorsey . Position: Design Expert Type: Contract Compensation...  ...~ Prior experience with AI training , evaluation, or human-data projects. Application... 
    Remote job
    Summer work

    Mercor

    London
    4 days ago
  • $80 - $120 per hour

     ...creative and technical talent with leading AI research labs. Headquartered in San...  ...Market research / competitive intelligence Evaluator Type: Contract Compensation...  .... Collaborate with subject matter experts to ensure consistency and relevance across... 
    Remote job
    Summer work

    Mercor

    London
    4 days ago
  • $100 - $150 per hour

     ...creative and technical talent with leading AI research labs. Headquartered in San...  ...Dorsey . Position: Sales Engineering Expert Type: Contract Compensation...  ...objections, supporting proofs of concept, and evaluating product fit and technical risk. ~... 
    Remote job
    Summer work

    Mercor

    London
    1 day ago
  • $80 - $150 per hour

     ...creative and technical talent with leading AI research labs. Headquartered in San...  ...Jack Dorsey . Position: Marketing Expert Type: Contract Compensation...  ...companies. ~ Deep fluency in writing and evaluating creative briefs, campaign development, brand... 
    Remote job
    Summer work

    Mercor

    London
    2 days ago
  • $100 - $150 per hour

     ...creative and technical talent with leading AI research labs. Headquartered in San...  ...Jack Dorsey . Position: B2B Sales Expert Type: Contract Compensation...  ...~ Prior experience with AI training , evaluation, or human-data projects. Application... 
    Remote job
    Summer work

    Mercor

    London
    4 days ago
  • $150 - $220 per hour

     ...creative and technical talent with leading AI research labs. Headquartered in San...  ...Dorsey . Position: Investment Banking Expert Type: Contract Compensation...  ...~ Prior experience with AI training , evaluation, or human-data projects. Application... 
    Remote job
    Summer work

    Mercor

    London
    1 day ago
  • $80 - $120 per hour

     ...Mercor connects elite creative and technical talent with leading AI research labs. Headquartered in San Francisco, our investors...  ...Summers , and Jack Dorsey . Position: Education / school Evaluator Type: Contract Compensation: $80–$120/hour... 
    Remote job
    Summer work

    Mercor

    London
    5 days ago
  • $39 per hour

     ...creative and technical talent with leading AI research labs. Headquartered in San...  ...Jack Dorsey . Position: Music Audio Expert - Swedish Type: Contract...  ...hours/week Role Responsibilities Evaluate AI model output lyrics , voice generation... 
    Remote job
    Summer work
    Immediate start

    Mercor

    London
    4 days ago
  • $80 - $150 per hour

     ...creative and technical talent with leading AI research labs. Headquartered in San...  ...Dorsey . Position: UI / UX Design Expert Type: Contract Compensation...  ...Work independently and asynchronously to evaluate and improve AI model performance .... 
    Remote job
    Summer work

    Mercor

    London
    4 days ago
  • £67k - £80k per annum

     ...role Moonshot is recruiting a Head of AI Safety to lead the delivery, development, and...  ...online harms with the emerging practice of evaluating and improving the safety of AI systems....  ...safety specialists, violence-prevention practitioners, safeguarding experts, and other subject... 
    Permanent
    Flexible hours

    Moonshot

    London
    6 days ago
  • $70 per hour

     ...creative and technical talent with leading AI research labs. Headquartered in San...  ...Jack Dorsey . Position: Generalist Expert Type: Contract Compensation...  ...Remote Role Responsibilities Evaluate AI-generated responses to strengthen reasoning... 
    Remote job
    Summer work

    Mercor

    London
    1 day ago
  • $100 - $150 per hour

     ...Mercor connects elite creative and technical talent with leading AI research labs. Headquartered in San Francisco, our investors...  ..., machine learning pipelines , and A/B test write-ups . Evaluate AI-generated or human-created work against established criteria... 
    Remote job
    Summer work

    Mercor

    London
    3 days ago
  •  ...internship, you will apply your knowledge to improve AI reasoning across complex financial workflows. You will help develop, evaluate, and refine high-quality training data that...  ...evaluations. Collaborate with domain experts to translate finance expertise into high-quality... 
    Full-time
    Internship
    On-site
    Immediate start

    aptura

    London
    23 hours ago
  • $50 per hour

     ...and indicate your level of English proficiency. Mindrift connects specialists with project-based AI opportunities for leading tech companies, focused on testing, evaluating, and improving AI systems.  Participation is project-based, not permanent employment. What this... 
    Permanent
    Temporary
    Part-time

    Mindrift

    London
    2 days ago
  • $20 - $22 per hour

     ...Mercor connects elite creative and technical talent with leading AI research labs. Headquartered in San Francisco, our investors...  ...Angelo , Larry Summers , and Jack Dorsey . Position: AI Safety Experts — English & Bengali Type: Contract Compensation... 
    Remote job
    Summer work

    Mercor

    London
    a month ago
  • $50 per hour

     ...Mercor connects elite creative and technical talent with leading AI research labs. Headquartered in San Francisco, our investors...  ...Jack Dorsey . Position: Spanish (Spain) Audio Generalist Evaluator Expert Type: Contract Compensation: $50/hour... 
    Remote job
    Summer work

    Mercor

    London
    a month ago
  • $20 - $22 per hour

     ...Mercor connects elite creative and technical talent with leading AI research labs. Headquartered in San Francisco, our investors...  ...Angelo , Larry Summers , and Jack Dorsey . Position: AI Safety Experts — English & Gujarati Type: Contract... 
    Remote job
    Summer work

    Mercor

    London
    a month ago
  • $85 per hour

     ...Mercor connects elite creative and technical talent with leading AI research labs. Headquartered in San Francisco, our investors...  ...Responsibilities Use frontier AI coding agents to complete and evaluate complex infrastructure engineering tasks. Review model-... 
    Remote job
    Summer work

    Mercor

    London
    6 days ago
  • $80 per hour

     ...Mercor connects elite creative and technical talent with leading AI research labs. Headquartered in San Francisco, our investors...  ...Responsibilities Use frontier AI coding agents to complete and evaluate complex data engineering tasks. Review model-generated... 
    Remote job
    Summer work

    Mercor

    London
    2 days ago
  • £76k - £100k per annumEstimated
     ...engineering and IT services. Domain Expert Role Overview Location:  UK...  ...Domain Expert — Responsible AI, Ethics & Assurance   Role...  ..., regulated processes, safety-critical decisions, operational...  ...evidence requirements, model/system evaluation, testing, validation,... 
    Full-time
    Hybrid working

    Methods Business and Digital Technology

    London
    16 days ago
  • £49k - £65k per annumEstimated
     ...MaxAccelerate AI Labs Division Location: UAE / Europe / Remote (Flexible) Reports...  ...We are now seeking an AI Subject Matter Expert (SME) to lead technical architecture, prototyping...  ...mitigation • AI monitoring and evaluation • Responsible AI deployment Candidate... 
    Remote
    Flexible hours

    MaxAccelerate

    London
    23 days ago
  • $70 - $90 per hour

     ...Mercor connects elite creative and technical talent with leading AI research labs. Headquartered in San Francisco, our investors include...  ...Summers , and Jack Dorsey . Position: Cybersecurity Experts Type: Contract Compensation: $70–$90/hour... 
    Remote job
    Summer work

    Mercor

    London
    6 days ago
  • £66k - £86k per annumEstimated
     ...employees specializing in engineering and IT services. Domain Expert Role Overview Location:  UK-based, hybrid working Regular...  ...and practice/community events.  As a Domain Expert for Data & AI Strategy in the Data & AI Consulting Practice , you will help... 
    Full-time
    Hybrid working

    Methods Business and Digital Technology

    London
    16 days ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to AI Safety Practitioner - Expert Evaluator. Be the first to apply!