As a member of the US Medical Affairs leadership team, the Senior Director provides strategic and scientific leadership across product development and commercialization, with responsibility for U.S. medical strategy, launch readiness, scientific engagement, field medical effectiveness, medical communications, education, payer engagement, and cross-functional execution. Working closely with the Global Medical Director, this individual serves as the primary U.S. medical voice for the neurometabolic portfolio, ensuring global evidence generation, scientific communications, and medical activities address the needs of U.S. patients, healthcare professionals, payers, and other stakeholders.