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Posted Apr 26, 2026

Senior/Medical Science Liaison - PAH (Los Angeles/San Francisco)

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California, US residentsclick here. The job details are as follows: Who You Are You are a strategic thinker with a strong work ethic who enjoys supporting HCPs and other internal stakeholders across the organization. As a self-starter and team player, you combine initiative, nimbleness, and strong communication skills with positive energy to deliver results in a compliant manner. You are known for being easy to work with, embracing learning, and thriving in a collaborative and dynamic environment. The Senior/Medical Science Liaison will serve as the primary field-based point of contact for current and future clinical investigators, speakers, and other health care providers on a range of clinical and scientific issues. Serve as a mentor/trainer for junior level MSLs, taking the lead on key Medical Affairs projects and providing leadership to the MSL team in the absence of the Senior Manager/Manager on a limited basis in the case of their absence. • Respond to unsolicited requests for information that is beyond the scope of that which is approved for promotional use while adhering to United Therapeutics policy on the dissemination of scientific information • Serve as the primary contact between PAH centers and internal departments (i.e. Medical Affairs / Clinical Operations) with regard to company and investigator-initiated studies, ensuring scientific validity and alignment with the company’s medical strategy • Establish and maintain relationships with current and prospective thought leaders by engaging in discussions related to publication concepts and advisory boards and responding to grants request and CME educational endeavors • Provide medical and scientific training and support to key internal stakeholders, including clinical research associates, field sales teams, and marketing teams • Manage project work related to Medical Affairs activities as assigned by the senior management of Medical Affairs. This includes contributing to the development of departmental infrastructure (eg, drafting SOPs) and identifying opportunities to enhance departmental work stream efficiencies Territory to include: CA, AZ, AK, HI, NV Minimum Requirements Medical Science Liaison • 6+ years of experience working in the biotech / pharmaceutical industry (or appropriate clinical setting) with a Master's Degree in life sciences or relevant field (e.g., NP, PA) or, • 2+ years of experience working in the biotech / pharmaceutical industry (or appropriate clinical setting) with a PharmD, PhD, or MD and • 3+ years of clinical experience in cardiovascular, respiratory, pulmonary or relevant disease state(s) • 1+ years as a Medical Science Liaison or equivalent combination of clinical and MSL experience • Ability to exhibit excellent verbal and written communication skills, including the effective conveyance of scientific and medical information to diverse audiences, both internal and external, in various settings • Strong team collaboration, planning, communication, and organizational skills • Demonstrated ability to proactively drive initiatives and innovate solutions • Proficient in Microsoft Office Suite (Word, Excel, Outlook, PowerPoint) • Strong presentation, facilitation and instructional skills • Ability to travel up to 80%, including overnight travel Minimum Requirements Senior Medical Science Liaison • 8+ years of experience working in the biotech / pharmaceutical industry (or appropriate clinical setting) with a Master's Degree in a relevant life sciences field (e.g., NP, PA) or, • 5+ years of experience working in the biotech / pharmaceutical industry (or appropriate clinical setting) with a PharmD, PhD, or MD • 3+ years of experience working in PAH • 2+ years of experience working as a MSL • Ability to exhibit excellent verbal and written communication skills, including the effective conveyance of scientific and medical information to diverse audiences, both internal and external, in various settings • Strong team collaboration, planning, communication, and organizational skills • Demonstrated ability to proactively drive initiatives and innovate solutions • Proficiency with Microsoft Excel, PowerPoint, and Word • Expert level of scientific knowledge • Strong presentation, facilitation and instructional skills • Ability to travel up to 80%, including overnight travel Preferred Qualifications • Ability to work independently and adapt to changing work demand and new processes • Demonstrated commitment to high standards of performance; adept at multitasking, prioritization, and results-oriented work Position Location This position is located remotely within the United States with ideal candidates living in CA, AZ, AK, HI, NV. The salary range for this position is $140,000 - $220,000 and reflects our good-faith estimate of the compensation for this role at the time of posting. An employee’s position within the salary range will be based on factors such as education, qualifications, experience, skills, geographic location, and business needs, as well as other factors permitted by law at the time of posting. This range may be modified in the future based on company and market factors. Eligible employees may participate in the Company’s comprehensive benefits suite of programs, including medical / dental / vision / prescription coverage, employee wellness resources, savings plans (401k and ESPP), paid time off & paid parental leave benefits, disability benefits, and more. For additional information on Company benefits, please visit