US Contract Attorney — In-House Counsel

About the Role Mercor is partnering with a leading AI lab to train frontier models on high-quality legal reasoning data. This is an evergreen talent pool for experienced US In-House Counsel — by applying, you join a standing bench and are considered for ongoing and upcoming legal-AI projects as they launch. We review applications on a rolling basis and reach out when work that fits your background comes up.

Typical work includes recurring side-by-side evaluations and legal dataset generation: you'll compare AI-generated legal work, judge which response is stronger and why, and create realistic in-house legal tasks and reference answers.

What You'll Do

• Compare pairs of responses to in-house legal tasks (contract review, policy and compliance questions, risk assessments and business-facing legal advice) and decide which is stronger, with clear reasoning
• Write concise justifications grounded in the source documents and applicable US law
• Create realistic legal prompts, fact patterns and model answers drawn from your in-house experience
• Flag errors, gaps and risky advice in AI-generated legal content
• Attend onboarding and calibration sessions

You're a Good Fit If You

• Are admitted to practice in at least one US state (active bar membership)
• Have 3+ years of legal practice, including in-house experience advising a business on contracts, compliance, employment, risk or disputes
• Hold a J.D. from an ABA-accredited law school
• Write clearly and pay close attention to detail

Bonus Qualifications

• 2+ years of experience at an AmLaw 100 firm (strongly preferred)
• Prior work on legal AI projects with Mercor
• Prior data annotation, AI evaluation or legal-benchmark experience

Role Highlights

• Evergreen talent pool — apply once and be considered for ongoing projects as they launch
• Fully remote, flexible hours; recurring tasks as new work comes up
• Applications reviewed on a rolling basis

We consider all qualified applicants without regard to legally protected characteristics and provide reasonable accommodations upon request.

Contract and Payment Terms

• You will be engaged as an independent contractor.
• This is a fully remote role that can be completed on your own schedule.
• Projects can be extended, shortened, or concluded early depending on needs and performance.
• Your work at Mercor will not involve access to confidential or proprietary information from any employer, client, or institution.
• Payments are weekly on Stripe or Wise based on services rendered.
• Please note: We are unable to support H1-B or STEM OPT candidates at this time.

About Mercor

Mercor partners with leading AI labs and enterprises to train frontier models using human expertise. You will work on projects that focus on training and enhancing AI systems. You will be paid competitively, collaborate with leading researchers, and help shape the next generation of AI systems in your area of expertise.