Medical Science Liaison, Solid Tumor-SoCal

Job Description

Kaye/Bassman, one of Forbes' top ranked executive search firms, has been partnering with Pharma and Biotech companies for over 35 years. Our Medical Affairs recruiting practice is led by Michael Pietrack, recognized as the #1 Medical Affairs recruiter in the U.S. and host of The Pharmaverse Podcast.

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Medical Science Liaison – Solid Tumor / Breast Oncology (Southern California)

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▶ Watch a short video overview of this opportunity

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Company

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Our client is a specialty pharmaceutical company that is part of a large, multi-decade-old multinational pharmaceutical group with commercial operations across dozens of countries.

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The company built its oncology franchise around a foundational breast cancer therapy that held a multi-year head start in its category, generating the substantial majority of company revenue, before new competitors entered for the first time in 2026. It also markets a first-in-class targeted therapy for a rare blood cancer, and its parent group markets a broader oncology portfolio across hematology and solid tumors.

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“Proof that a focused, science-first biotech can out-execute Big Pharma.” (industry trade press)

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The Role They Will Play

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This Medical Science Liaison will represent the company's scientific and clinical presence across a large Western territory spanning Southern California and Hawaii, engaging Key Opinion Leaders (KOLs) and Health Care Providers (HCPs) in fair, balanced scientific exchange on the company's pipeline and disease-state data.

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The role addresses a timely need: translating a growing body of solid tumor and breast cancer data at a moment when the competitive landscape is shifting quickly, while also supporting investigator-initiated and company-sponsored trials, advisory boards, and scientific congress engagement.

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Unlike a purely reactive medical affairs seat, this position pairs proactive KOL engagement with fast-turn scientific support for a commercial team navigating new competition, offering meaningfully more visibility than a typical steady-state MSL territory.

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For a candidate early in their MSL career, or coming directly from an academic or fellowship background, it is a rare chance to build a career-defining foundation in a therapeutic area with real momentum.

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Background Profile

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The client's posted qualifications, and the priorities the hiring team described directly, both matter here. Candidates should bring most of the following:

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• Advanced degree preferred (MD, PhD, PharmD preferred).
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• Established relationships with HCPs and other KOLs within the territory.
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• At least 5 years of MSL experience preferred; at least 2 years of MSL/Medical Affairs experience required.
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• Solid Tumor focus required, with experience in Breast Medical Oncology strongly preferred.
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• Strong knowledge and/or experience of healthcare and access environments.
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• Proven ability to work independently and cross-functionally in a high-matrixed environment, including joint venture collaborations.
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• Preferred experience on product launches or as a product/therapeutic point of contact.
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• Excellent interpersonal, communication, and presentation skills; strong personal integrity and a customer focus.
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• Strong compliance knowledge, including current working knowledge of FDA, OIG, ICH, GCP, PhRMA Code, HIPAA, and related regulations.
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• This position requires greater than 75% domestic travel, including within the territory and to the home office and national meetings.
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About KBIC Life Sciences

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Kaye/Bassman's experienced pharmaceutical and biotechnology executive search team combines managing directors, partners, and tenured consultants who have exceptional industry and functional domain knowledge.

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Because we were founded on the concept of Market Mastery™, each of our recruiters works in a specific functional domain that mirrors the departments of your company. Couple that with our Client Focused Search™ approach, and the result is that you get the top talent hand delivered to you fast. We work with scaling start-ups looking for cross-functional leadership. We also partner with established organizations focusing on strategic hires. All pharmaceutical, diagnostics, medical device, and related companies can benefit by partnering with Kaye/Bassman's Pharma & Biotech team.

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