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AI Evaluation

CBRN Safety RLHF Expert

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 1mo ago

The middle of its range, $51/hr, is above the $35/hr median of the AI Evaluation & Rating (RLHF) roles open now, whose typical pay runs $20–$120/hr. How that pay moves week by week is in our research on AI Evaluation & Rating (RLHF) work.

Half of all AI Evaluation & Rating (RLHF) roles come down within 18 days of being listed, and 31.4% are still up after four weeks. This one was posted 39 days ago.

About the role

The Work

You will help improve AI safety by reviewing prompts and AI-generated responses related to chemical, biological, radiological, and nuclear risks. The work focuses on judging model behavior, identifying safety concerns, and giving clear reference feedback.

  • Review prompts and AI-generated responses.
  • Classify safety risks in model outputs.
  • Evaluate how the model handles CBRN-related requests.
  • Rank responses based on their quality and safety.
  • Provide expert reference feedback for AI training.
  • Take part in red-teaming, which tests how models respond to risky prompts.

What It Pays and Takes

This is a part-time contractor role for candidates with intermediate experience. The work requires subject knowledge relevant to CBRN safety and careful judgment when evaluating AI responses.

  • Pay: $50 to $52 per hour.
  • Time: Less than 20 hours per week.
  • Work type: Part-time contract.
  • Open to candidates in the United States, United Kingdom, Canada, Australia, New Zealand, Germany, France, Spain, Portugal, and Italy.
  • Experience level: Intermediate.
  • Relevant knowledge: Chemistry, biochemistry, radiology, nuclear topics, and explosives.
  • Key skills: Safety-risk classification, response evaluation, ranking, red-teaming, and expert feedback.

How It Works

Apply on OpenTrain. The employer reviews applications there.

About AI Training Work

AI training is the human work behind systems that learn from examples, including reviewing model responses and rating their quality and safety. People with relevant subject knowledge are paid to help models behave more accurately and responsibly.

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 30 Oct 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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