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Posted Apr 16, 2026

[Remote] Senior Medical Science Liaison ( NYC Tri-State)

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Note: The job is a remote job and is open to candidates in USA. Xenon Pharmaceuticals is a neuroscience-focused biopharmaceutical company dedicated to drug discovery and clinical development. They are seeking a Senior Medical Science Liaison to engage with healthcare providers and key opinion leaders to provide education on their pipeline in epilepsy and advance the MSL function in support of Medical Affairs and Clinical Development teams. Responsibilities • Identify, develop and maintain valued and productive scientific relationships with key external stakeholders including KOLs, HCPs, payors, academic and healthcare institutions, and advocacy groups • Act as a key scientific resource to communicate up-to-date medical, clinical, and scientific information about Xenon’s neurology and epilepsy products and pipeline • Advance Xenon’s scientific platform and medical information in alignment with corporate and medical objectives • Engage in projects and/or initiatives aligned to medical strategies and objectives; adapt plans and tactics for the assigned territory • Identify and report timely and relevant scientific/clinical insights, trends, opportunities, and threats for targeted products • Collaborate with internal clinical development teams to enhance patient enrollment in Xenon-sponsored clinical trials. This includes investigator identification for clinical programs in epilepsy • Respond to and document unsolicited requests for scientific information • Lead assigned national and/or regional congress activities in accordance with Medical Affairs strategies and plans • Provide instruction, coaching and mentoring to new or less experienced MSLs • Travel domestically up to 50% of the time, including overnight travel as business needs require. International travel may be required on an ad-hoc basis • Act in accordance with Company policies, including, for example, the Code of Business Conduct and Ethics and ensure policies are understood and followed by direct reports, if any Skills • Minimum of a relevant doctorate degree (i.e. M.D., PhD, PharmD, DPH, DNP) • Minimum 5 years relevant MSL related experience required • Experience in neurology therapeutic area or epilepsy required • Able to communicate accurately, concisely, credibly, and confidently; easily understands other points of view and responds appropriately; adjusts communication according to the audience • Delivers reliably against goals; proven ability to work both independently and cross-functionally; demonstrates a willingness and aptitude to learn if not yet well-versed • Knowledge of clinical research processes, FDA regulations, and OIG guidelines required • 8+ years relevant MSL related experience strongly preferred • Established relationships with KOLs and knowledge of institutions in neurology; epilepsy strongly preferred • Clinical trial development and drug launch experience are strongly preferred Benefits • Medical • Dental • Vision • Short-& long-term disability • Accidental death & dismemberment • Life insurance programs • Employee Assistance Program • Travel insurance • Retirement savings programs with company matching contributions • Vacation • Personal days • Sick days • End-of-year company shutdown • Training, Learning & Development program • Tuition Assistance program for advanced degrees Company Overview • Xenon Pharmaceuticals is a neuroscience-focused biopharmaceutical company dedicated to drug discovery, clinical development, and commercialization of life-changing therapeutics for patients in need. It was founded in 1996, and is headquartered in Burnaby, British Columbia, CAN, with a workforce of 201-500 employees. Its website is http://www.xenon-pharma.com. Company H1B Sponsorship • Xenon Pharmaceuticals Inc. has a track record of offering H1B sponsorships, with 2 in 2025, 1 in 2024, 2 in 2023. Please note that this does not guarantee sponsorship for this specific role.
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