Mindrift is seeking a freelance Mechanical CAD & Simulation Engineer in the United Kingdom to train and evaluate AI agents working within CAD environments. Candidates must have at least 5 years of professional CAD modeling experience, their own active professional CAD license, familiarity with Python and GitHub, and B2-level English or above. The remote role involves designing part geometry, building reference solutions, and assessing AI performance for 10–20 hours per week during active project phases.