Legal Expert - AI Training Specialist

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.

About the role

As a Legal Domain Expert, you will evaluate the quality of legal knowledge work tasks and AI model outputs, develop high-quality instruction specs, design challenging legal tasks, and collaborate with research teams to build legal-specific skills and tools.

Responsibilities

• Evaluate the quality of legal knowledge work tasks and AI model outputs.
• Identify missing behaviors and thin reasoning.
• Develop high-quality instruction specs and produce golden solutions for legal problems.
• Design challenging legal tasks and evaluation sets.
• Collaborate with the research team to build legal-specific skills and tools.
• Work with client researchers to maintain consistent standards.
• Translate tacit legal judgment into explicit criteria.
• Provide precise, well-structured written feedback to improve AI model performance.

Requirements

• Juris Doctor (JD) from an accredited law school.
• 5+ years of substantive post-qualification legal practice.
• Specialization in a substantive practice area (e.g., corporate, litigation, regulatory).
• Seniority with real ownership of matters.
• Active admission to at least one U.S. state bar, in good standing.
• Experience with large language models in professional work.
• Ability to commit to 40 hours per week for 6 months.
• Reside in the Bay Area, California and able to come on-site when required.

Pay

$50–$90/hour

Schedule

40 hours/week (contract for 6 months)

Benefits

• W-2 employment with Cincinnatus LLC.
• Paid weekly.