The Sr. Director, US Medical Science Liaison will serve as scientific and clinical expert, identifying and building trusted relationships with KOLs and ECP advocates, and identifying / supporting opportunities for clinical trials. The role is responsible for leading and overseeing the field-based medical science liaison team within the Medical Affairs department. This position plays a critical role in building scientific relationships with key opinion leaders, supporting strategic medical objectives, and disseminating up-to-date clinical and scientific information to healthcare professionals. The ideal candidate will collaborate cross-functionally to ensure alignment with organizational goals while maintaining the highest standards of scientific integrity and compliance. • Manage a team of MSLs across the US. • Develop and implement medical strategies that align with overall business objectives. • Interpret, communicate, and disseminate complex clinical and scientific data to internal and external stakeholders. • Foster relationships with key opinion leaders, healthcare professionals, and external partners to support medical initiatives. • Ensure compliance with all relevant regulations, policies, and ethical standards in all medical affairs activities. • Lead and contribute to cross-functional teams to drive project success from initiation through completion. • Support the design, execution, and reporting of clinical trials and research studies. • Provide medical expertise for regulatory submissions, promotional materials, and educational programs. • Identify and address unmet medical needs through evidence generation and strategic insights. • Maintain up-to-date knowledge of industry trends, scientific advancements, and competitive landscape. • Contribute to the professional development and training of team members and colleagues. Skills: • Strong scientific and clinical knowledge in relevant therapeutic areas • Excellent communication and presentation skills • Ability to build and maintain relationships with key opinion leaders and healthcare professionals • Strategic thinking and problem-solving abilities • Leadership and team management experience • Proficiency in interpreting and disseminating complex clinical data • High level of integrity and commitment to compliance • Effective cross-functional collaboration skills • Adaptability in a fast-paced and evolving environment • Strong organizational and project management skills Experience: Minimum of 10 years of experience in the pharmaceutical, biotechnology, or healthcare industry, preferably in a medical affairs or clinical development role. Demonstrated track record of successfully collaborating with cross-functional teams and leading projects from inception to completion. Demonstrated experience working directly with key opinion leaders and managing external partnerships. Prior experience managing MSLs. Education: Advanced degree (MD, PharmD, PhD, or equivalent) in a relevant scientific or medical field is required. Additional certifications or training in clinical research, regulatory affairs, or medical affairs are considered an asset. • Competitive salary and benefits package. • Opportunities for professional development and career growth. • Collaborative and innovative work environment.