Senior Legal AI Benchmark & QA Architect

Obsidian is seeking a senior legal domain expert to join its GenAI team, working with research and program management to improve how frontier AI models reason about real legal work. This is a full-time W-2 role through Cincinnatus LLC, with on-site Bay Area work and potential placement at a leading AI lab. You will review quality, write instruction specs and golden solutions, and design benchmarks. Requires JD, 5+ years post-qualification, US bar, and hands-on experience with LLMs. #J-18808-Ljbffr Obsidian