Jefe/A De Obra (Obras Lineales)

Confiarte; Madrid; Remote; EUR 74,000 - 86,000; Part time

Job summary

Mercor is seeking an AI Safety Practitioner (Expert Evaluator) for remote contract work. The role focuses on evaluating AI-generated responses for safety, accuracy, and policy compliance, and applying rubrics for RLHF, SFT, and benchmarking.

Collaboration with AI researchers and safety teams is expected to drive improvements in model alignment and safety performance. The ideal candidate has a Bachelor's degree or higher and 5+ years in AI Safety or related fields, with excellent English and

Qualifications

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

Bachelor's degree

5+ years AI Safety

Excellent written English

Policy reasoning

Education

Bachelor's degree or higher in relevant fields

Job description

AI Safety Practitioner - Expert Evaluator

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.

Resources & Support

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