OpenTrain is hiring a Medical AI Quality Assurance Lead to evaluate AI-generated clinical content, responses, and trainer submissions for accuracy, safety, and reasoning. Candidates must hold a medical degree (MD, DO, MBBS, MBChB, or equivalent), possess at least three years of medical or clinical QA experience, and have strong English communication skills. This remote part-time contractor role requires at least 20 hours per week and is open to applicants based in the United States.