Medical Science Liaison - Medical Affairs

Job Description

Medical Science Liaison, HIV

GSK is looking to hire a Medical Science Liaison, HIV to join our ViiV Healthcare Team. This role is field-based and reports directly to the Medical Affairs leadership team. This position covers Eastern Ontario, Quebec, and Newfoundland territory.

Job Purpose

As a Medical Science Liaison (MSL), you will provide non‑promotional medical support to ensure the safe and effective use of ViiV’s products through scientific engagement with external stakeholders, including healthcare professionals, researchers, and advocacy groups. You will serve as a link between internal teams and the external healthcare community, support clinical development activities, and deliver scientific insights that inform strategy and improve patient outcomes.

Details (Your Responsibilities)

• Build and maintain strong peer‑to‑peer scientific relationships with key HIV external experts


• Present balanced and credible scientific data and support medical education initiatives


• Serve as a scientific expert in virology, maintaining deep knowledge of HIV disease, treatments, and the competitive landscape


• Respond to unsolicited medical inquiries with accurate, non‑promotional information


• Engage with a wide range of stakeholders including healthcare professionals, investigators, advocacy groups, and formulary decision‑makers


• Act as a key liaison between the external healthcare community and internal ViiV teams, gathering insights to inform strategy


• Provide scientific support at regional, national, and international medical conferences


• Deliver scientific training to sales teams using approved materials


• Collaborate with clinical development teams to identify and support clinical trial sites


• Travel up to 70% within the assigned territory

Basic Qualifications

• Advanced post‑graduate scientific degree (MD, PhD, or PharmD)


• Strong ability to interpret and communicate scientific and medical data in peer‑to‑peer discussions


• Exceptional presentation and public speaking skills


• Excellent interpersonal and collaboration skills with a focus on teamwork and execution


• Knowledge of regulations governing medical information exchange in the Canadian pharmaceutical environment


• Strong negotiation, leadership, and organizational skills


• Valid driver’s license


• Ability to work independently in a field‑based role with significant travel (up to 70%)

Preferred Qualifications

• 2+ years of experience in HIV, virology, or infectious diseases within a medical affairs role


• Established relationships with healthcare professionals and key opinion leaders in the HIV space


• Previous field‑based MSL experience


• Eligible for a company‑leased vehicle subject to driver verification and safe‑driver program compliance

In compliance with Ontario's provincial pay transparency legislation, annual compensation for this role is CAD115,000 to CAD165,000, determined based on experience, qualifications, and internal equity.

Why Us?

ViiV Healthcare is the only pharmaceutical company solely focused on combating, preventing, and ultimately eradicating HIV and AIDS. Our mission is to leave no person living with HIV behind, and we support this through innovation, community partnership, and a culture of inclusion.

ViiV is an Equal Opportunity Employer. All qualified applicants will receive equal consideration for employment without regard to race, color, religion, sex, gender identity or sexual orientation, parental status, national origin, age, disability, or other protected status. We welcome applications from all qualified individuals.

Important notice to Employment businesses/Agencies: ViiV does not accept referrals from employment businesses or agencies without prior written authorization. Referents must contact ViiV’s procurement/human resources department for authorization before submitting candidates.

For accommodation requests, contact canada-recruitment@gsk.com. Please do not send resumes to this e‑mail and instead apply through the online application process of this posting.