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Posted Mar 15, 2026

Senior Law Librarian / Research Attorney

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Mercor is hiring experienced Senior Law Librarians and Research Attorneys to help design complex, high-quality legal research questions for an AI evaluation benchmark. This role is ideal for professionals who regularly handle escalated or cross-jurisdictional research questions and are skilled at framing nuanced research problems. Key Responsibilities - Draft sophisticated legal research questions reflecting complex firm-level inquiries - Design issues requiring: - Multi-jurisdictional analysis - Conflicting authority resolution - Deep precedent synthesis - Ensure all questions are grounded in identifiable, authoritative legal sources - Maintain clarity, realism, and practical scope Requirements - 8+ years of experience as a law librarian, research attorney, or senior legal research specialist - Extensive experience handling complex or escalated research requests - Strong understanding of legal research methodologies - Exceptional issue-framing and writing skills Nice to Have - Experience training associates on research techniques - Exposure to AI tools in legal research - Prior dataset annotation or benchmark development experience Why Join - Apply deep research expertise to shape how AI systems are evaluated on legal reasoning - Flexible engagement structure - Work with a top-tier AI research organization