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 ***** 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.

📌 Ai Safety Practitioner - Expert Evaluator (Madrid)
🏢 Mercor
📍 Madrid