AI Safety Practitioner - Expert Evaluator

mercor; Portugal; Remote; EUR 74,000 - 86,000; Full time

Job summary

Mercor is seeking an AI Safety Practitioner for a remote contract role. You will evaluate AI-generated responses for safety, factual accuracy, and policy compliance, covering high-risk domains.

You will apply ML evaluation rubrics and collaborate with AI researchers and safety teams to improve model safety and alignment. The role requires strong English writing, critical thinking, and expertise in AI safety, with experience reviewing complex, sensitive content.

Qualifications

• Bachelor's degree or higher in a related discipline.
• At least 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.

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.

Skills

Written English

Critical thinking

Analytical reasoning

AI Safety / Trust & Safety

Education

Bachelor's degree or higher in a related field

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: 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.