[Remote] Field Medical Science Liaison Regional Director

Note: The job is a remote job and is open to candidates in USA. Mirum Pharmaceuticals is a biopharmaceutical company dedicated to transforming the treatment of rare diseases. The Field Medical Science Liaison Regional Director role is a senior, field-based position responsible for leading an MSL team and engaging with key opinion leaders to drive field medical strategy and operational excellence.

Responsibilities

• Identify (KOLs) and the treatment landscape nationally including high prevalence areas of HDV management and treatment
• Build peer-level relationships with KOLs, investigators, academic thought leaders in hepatology, infectious disease and other appropriate specialties while maintaining their trust as scientific partner/collaborator
• Serve as a senior field-based MSL, conducting compliant, fair-balanced, non-promotional scientific exchange with key opinion leaders (KOLs), investigators, and other healthcare stakeholders in support of the Hepatitis D (HDV) program
• Develop and maintain deep expertise in HDV disease state, mechanism of action, clinical data, and emerging literature
• Identify unmet medical needs, emerging trends, and actionable insights; communicate these insights internally to the Global Medical Affairs Team (GMAT) to inform strategy
• Support medical education activities, advisory boards, scientific congresses, and investigator-initiated research (as appropriate)
• Act as a player/coach, balancing individual field responsibilities with leadership and mentorship of MSLs as the organization expands
• Support the expansion of the MSL organization including hiring, onboarding, training, and field readiness
• Coach MSLs on scientific communication, stakeholder engagement, territory planning, and insight generation
• Establish performance expectations, provide ongoing feedback, and support professional development
• Help define field medical processes, best practices, and success metrics
• Foster a culture of scientific excellence, collaboration, accountability, and compliance
• Contribute to the development and execution of field medical strategy aligned with Mirum’s Medical Affairs objectives
• Support Medical Affairs initiatives across clinical development, launch readiness, and lifecycle management
• Work compliantly with cross-functional partners to support the overall brand strategy through effective communication of scientific information
• Provide leadership input into launch planning, resourcing, and long-term Medical Affairs organizational design
• Ensure all activities are conducted in compliance with company policies, SOPs, and applicable regulations

Skills

• Advanced scientific degree (PhD, PharmD, MD, DO, PA, NP or equivalent)
• 5+ years of experience in Medical Affairs or MSL roles within biotech or pharmaceutical companies
• Significant field-based MSL experience with a strong record of scientific engagement
• Excellent scientific communication and relationship-building skills
• Ability to work effectively in a fast-paced, growth-oriented biotech environment
• Willingness to travel extensively (approximately 50–70%)
• 1-2 years of prior people management experience or formal team leadership
• Experience building or scaling an MSL team
• Hepatology, infectious disease, or rare disease experience
• Experience in early-stage or high-growth biotech organizations

Company Overview

• Mirum Pharmaceuticals, Inc. is a biopharmaceutical company dedicated to transforming the treatment of rare diseases affecting children and adults. It was founded in 2018, and is headquartered in Foster City, California, USA, with a workforce of 201-500 employees. Its website is https://mirumpharma.com.

Company H1B Sponsorship

• Mirum Pharmaceuticals, Inc. has a track record of offering H1B sponsorships, with 1 in 2025, 2 in 2024, 1 in 2023, 1 in 2022, 1 in 2021, 1 in 2020. Please note that this does not guarantee sponsorship for this specific role.

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