Celldex is a biotechnology company developing antibody-based therapies for allergic, inflammatory, and autoimmune disorders. The Executive Director, Managed Markets - National and Key Accounts will lead the national and regional payer account organization, drive market access and contracting strategies for barzolvolimab, and ensure launch readiness and post-launch execution. The role also involves building a high-performing team, managing strategic customer relationships, and advising senior leadership on access opportunities and risks.