Medical Science Liaison; MSL), Lung​/GU​/GI - Southern California; CA

Site Name: Field Worker - USA, USA - California - Los Angeles

Posted Date: Feb 26 2026

Cancer is unrelenting, but so are we. We strive to outpace cancer, improve patient outcomes, and enhance access to innovative therapies through leading science and technology via our talented people and strong partnerships. Our ambition is to help increase overall quality of life, maximize survival and change the course of disease, expanding our current focus on blood and women’s cancers into lung and gastrointestinal cancers, as well as other solid tumors.

Every step is guided by patient and healthcare professional insights, ensuring we deliver meaningful innovation where it matters most.

If you are motivated by the opportunity to make a meaningful difference for patients with cancer, the Oncology Medical Science Liaison (MSL) role offers a highly impactful career path at GSK.

As an Oncology MSL, you will bring strong clinical and therapeutic expertise and a solid understanding of the oncology landscape to engage with healthcare providers and key community and academic experts. Acting as a trusted medical resource, you will support clinical trials by facilitating relevant medical activities and collaborating with Medical Affairs and Clinical Operations colleagues.

The MSL role is critical in identifying disease and product-related medical needs, capturing and communicating insights from the field, and supporting research activities and health innovations that contribute to improved patient care.

This is a non-promotional, customer-facing, field-based role focused in assigned oncology therapeutic area.

In this position, you’ll focus on advancing clinical practice within an assigned territory to improve patient outcomes and shape the future of oncology care. To reach this goal you will:

• Engage relevant healthcare professionals and accounts (academic and community HCPs, pharmacists, physician assistants, nurses, etc.) using a data-driven approach based on scientific expertise and market knowledge, supplemented with MSL territory understanding, to address educational needs and inform medical plans.

• Educate and engage HCPs & healthcare community on disease state, product information, emerging data, clinical trials, unmet medical needs, patient access barriers, and market dynamics; collect and communicate insights to influence medical strategy across the product lifecycle.

• Develop and execute strategic territory and engagement plans aligned with medical strategy, including planning scientific interactions with key accounts and supporting clinical trials through relevant medical activities and cross-functional collaboration.

• Act as a therapeutic area and GSK medicines resource for customers and internal colleagues by maintaining in-depth knowledge of the therapeutic landscape and anticipating customer educational needs.

• Collaborate with internal stakeholders (Medical Affairs, Clinical Operations, Marketing, Sales, etc.) on a customer centric basis to deliver aligned medical solutions and participate in Field Medical or cross enterprise projects supporting medical strategies.

• Comply with GSK policies, Code of Conduct and ways of working; complete required training, documentation and administrative responsibilities in a timely, compliant manner.

• Must reside within territory for consideration with access to a major airport.

• Doctorate in a clinical/medical field (Pharm
  
  D, PhD, MD), or a master's in advanced science/clinical/healthcare (e.g., MSN, ANP, MS, MPH)

• Oncology, pharmaceutical industry, clinical or academic experience.

• 2 plus years of clinical or industry experience in oncology, hematology, rare disease, or another closely related therapeutic area.

• Experience engaging in peer-to-peer scientific dialogue with medical professionals and decision makers.

• Experience delivering medical-based presentations.

• Experience identifying opportunities for medical engagement and developing scientific engagement goals.

• Experience working with external HCPs, experts, and internal stakeholders.

• Must be able to manage designated territory with 60-75% travel.

• Previous…