US Head of Medical Affairs

Company Name: Gossamer Bio

Summary:

The US Head of Medical Affairs will serve as a strategic and visionary leader responsible for driving the US medical affairs strategy and execution for Seralutinib. In this highly visible and influential role, you will collaborate cross-functionally with colleagues in Clinical Development, Commercial, Regulatory, Quality, and Global Medical Affairs to maximize the value of Seralutinib in a dynamic and competitive therapeutic landscape.

This role will play a key part in shaping data generation strategies, informing product positioning and therapeutic benefit, supporting launch planning, and leading medical communications to a diverse set of internal and external stakeholders—including healthcare professionals, scientific experts, payors, and patient advocacy groups. The ideal candidate brings deep scientific expertise, strong leadership experience, and a proven ability to inspire and align cross-functional teams in a fast-paced environment.

Essential Duties and Responsibilities

• Lead the medical affairs strategy and tactics for Seralutinib and life cycle products.
• Design and execute an integrated medical and scientific affairs plan and scientific communications integrated with European Medical Affairs, Research, Marketing and Development to inform on positioning, therapeutic benefit, and product launch.
• Lead US communications to internal and external stakeholders including thought leader engagement; ad boards; medical conference exhibits and support.
• Collaborate with Chiesi’s commercial Medical Affairs team partnering on launch readiness in the US.
• Provide oversight of the US Commercial Medical Science Liaison team including supporting launch readiness.
• Oversee the US Regional Medical Affairs team to support the clinical development studies of Seratlutinib in ILD-PH, PAH OLE & life cycle opportunities.
• Lead global publications activities collaborating with ROW Medical Affairs, Clinical, Translational Medicine and Commercial on strategy and messaging.
• Provide guidance and oversight of US patient advocacy efforts for Seralutinib in PAH, ILD-PH and other potential indications.
• Oversee the design and execution of US Phase 4, observational studies, registries, and real-world data projects.
• Support Health Economics and Outcomes Research (HEOR) studies in the US to demonstrate product value.
• Review, support, and monitor US based independent investigator-initiated studies and provide funding or drug supply if aligned with scientific and strategic goals.
• Provide leadership, direction, partnership, and support of the Launch Planning Team.
• Build and develop Medical Affairs team and infrastructure to support commercialization.
• Establish and lead the Medical Information and medical communications departments to ensure relevant scientific data is disseminated in a clear, compliant manner, supporting scientific and clinical programs.
• Manage and regularly meet with thought leaders and industry partners to support the successful execution of Scientific Medical Affairs tactics.

JOB QUALIFICATIONS

• Advanced scientific degree required (MD, PhD, or PharmD; MD preferred), with at least 15 years of progressive experience in the biotech or pharmaceutical industry, including a minimum of 5+ years in Medical Scientific Affairs.
• Minimum of 5+ years of leadership experience with demonstrated accountability across core Medical Affairs functions.
• 5+ years clinical experience in pulmonary arterial hypertension (PAH) or interstitial lung disease (ILD-PH) strongly preferred.
• Proven ability to lead, inspire, and develop high-performing, cross-functional medical and scientific teams in complex and evolving environments.
• Exceptional planning, organizational, interpersonal, and communication skills, including public speaking.
• Strong track record of navigating organizational change and aligning teams around evolving strategic priorities.
• Highly collaborative with strong emotional intelligence, organizational awareness, and the ability to build trust across diverse stakeholders.
• Strategic mindset with strong problem-solving and contingency-planning capabilities.
• People leadership excellence—proven ability to inspire and develop high-performing teams while modeling core values of teamwork, humility, respect, empowerment, agility, and disciplined execution.
• Exceptional interpersonal and collaboration skills; builds trust across scientific and business functions, navigates cultural and functional differences, and negotiates timelines and resources effectively.
• Demonstrated success in a matrixed, cross-functional environment, aligning interdisciplinary teams to shared objectives and delivering measurable results.
• Superior planning and organizational capabilities; independently drives projects forward, establishes and manages timelines and budgets, and maintains clear accountability.
• Outstanding written and verbal communication skills, with the ability to distill complex scientific and business information concisely and handle confidential materials with discretion.
• Hybrid work readiness (remote with periodic headquarters visits) and willingness to travel domestically and internationally up to 25%.

Gossamer Bio is committed to equal opportunity in the terms and conditions of employment for all employees and job applicants and complies with all applicable national, state and local laws governing nondiscrimination in employment.