Senior Leader, Human Factors for Medical Devices

Merck & Co. in Rahway, NJ, is seeking a Principal Scientist to lead a Human Factors team focused on design, development, and regulatory compliance for combination products and medical devices. You will guide usability studies, risk assessments, and post‑market activities, interfacing with product, regulatory, and quality teams. The role requires 10+ years in Human Factors with strong leadership, communication, and problem‑solving skills in a regulated environment.