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AI Evaluation

CBRN Safety RLHF Reviewer

OpenTrain AI logoOpenTrain AI$50–$52/hr
Remote in 10 countries

Australia, Canada, Germany, Spain, France, United Kingdom, Italy, New Zealand, Portugal, United States

ContractPosted 3w ago

About the role

The work

You will help assess how AI systems handle chemical, biological, radiological, nuclear, and explosive safety topics. The work involves reviewing prompts and generated responses, identifying risks, and giving expert feedback that can improve model behavior.

  • Review prompts and AI-generated responses.
  • Classify potential CBRN safety risks.
  • Evaluate model behavior on safety-related content.
  • Rank responses based on their quality and safety.
  • Provide expert reference feedback for AI training.

What it pays and takes

This is a part-time contractor role for candidates with intermediate experience. Work is limited to less than 20 hours per week.

  • Pay: $50 to $52 per hour in USD.
  • Work type: Part-time contract.
  • Location: United States, United Kingdom, Canada, Australia, New Zealand, Germany, France, Spain, Portugal, or Italy.
  • Experience: Intermediate level.
  • Subject knowledge: Chemistry, biochemistry, radiology, nuclear topics, and explosives.

How it works

Apply on OpenTrain. The employer reviews applications there.

About AI training work

OpenTrain AI hires and contracts people for AI training work, where human reviewers help improve how artificial intelligence systems respond. Reviewers use subject knowledge to assess model outputs, identify risks, and provide feedback used to train safer and more useful AI.

Where you can work

This role is 100% remote, for applicants located in these 10 countries: Australia, Canada, Germany, Spain, France, United Kingdom, Italy, New Zealand, Portugal and United States.

From OpenTrain AI's job posting, checked Oct 18, 2026.

About OpenTrain AI

A unified board of AI-training jobs with real per-role pay.

How it pays: Stripe payouts to your bank, in the 120 countries its payout docs list.

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