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Medical Science Liaison​/Senior Medical Science Liaision; MSL​/Sr. MSL), Oncology - Northern CA

Job in Bakersfield, Kern County, California, 93399, USA
Listing for: Eisai US
Full Time position
Listed on 2026-01-12
Job specializations:
  • Healthcare
    Medical Science Liaison
Salary/Wage Range or Industry Benchmark: 125000 - 150000 USD Yearly USD 125000.00 150000.00 YEAR
Job Description & How to Apply Below
Position: Medical Science Liaison / Senior Medical Science Liaision (MSL/Sr. MSL), Oncology - Northern CA[...]

Medical Science Liaison / Senior Medical Science Liaison (MSL/Sr. MSL), Oncology - Northern CA and Los Angeles;
Field-Based

At Eisai, we are a pharmaceutical company focused on meeting unmet medical needs in neurology and oncology. This role is for a highly motivated individual who wants to work in a fast‑paced environment and make a difference.

Role Overview

The Medical Science Liaison (MSL/Sr. MSL) is a field‑based representative of US Medical Affairs. The primary responsibility is to engage in scientific exchanges with external customers—health‑care providers, researchers, professional organization leaders, and population based decision makers—in the areas of interest to Eisai. The MSL brings relevant insights from the field about research developments, the treatment landscape, and new concepts in medical treatment.

The impact of a MSL to the organization includes:

  • Communicating key information about Eisai, the company and its mission;
  • Providing scientific and clinical information about Eisai’s products;
  • Serving as a conduit for communication between Eisai Research and the medical community regarding ideas for future research;
  • Providing corporate value through leadership and participation in strategic thinking.
Essential Functions Product/Therapeutic Area Support to External Stakeholders
  • Act as the primary clinical/scientific resource to Healthcare Providers (HCPs) in the territory for information about the disease state and Eisai's products;
  • Serve as a conduit for accurate and updated clinical, scientific and medical information between Key Opinion Leaders (KOLs)/investigators and Eisai Medical Affairs and development groups;
  • Establish, foster, cultivate and maintain peer relationships with KOLs;
  • Share knowledge and participate in scientific exchanges with identified KOLs;
  • Present clinical, scientific and economic data on Eisai’s products and relevant therapeutic areas to population‑based decision makers, as requested;
  • Support assigned professional congresses in accordance with MSL plan and lead congress coverage efforts as required;
  • Identify and report key scientific, clinical and research insights from KOLs to Medical Affairs;
  • Develop, implement and present plans to support Medical Affairs strategic direction for the assigned territory.
Training/Education Resource
  • Maintain and demonstrate thorough and up‑to‑date knowledge of disease state, study methodology, clinical information and product data;
  • Demonstrate full knowledge of and ability to execute approved medical platforms/strategies and MSL initiatives;
  • Serve as a technical/scientific subject‑matter resource to Eisai commercial personnel, if requested;
  • Teach, coach and mentor new or less experienced MSLs; assist with supervision/performance evaluation; take responsibility for special projects and contribute to leadership and strategic planning.
Research Support
  • Facilitate review and follow‑up of submitted Investigator‑Initiated Studies (IISs) and assist with Eisai‑sponsored trials;
  • Serve as the primary contact for external investigators who submit IISs; provide recommendations for site selection and scientific expertise for company‑sponsored post‑marketing studies.
Professional Organization Support
  • Lead field medical efforts in support of Eisai’s collaboration and interactions with professional organizations, societies and advocacy groups, as required.
Educational Requirements

Requires an advanced, terminal Doctorate level (D‑level) degree in medical or health sciences (e.g., MD, PhD, Pharm

D, DPH, EdD).

Experience
  • For MSL: 0‑3 years of experience in the pharma/biotech industry, clinical pharmacy, research or a related scientific/clinical setting, preferably as an MSL;
  • For Sr. MSL: a minimum of 3 years MSL experience in Oncology/Hematology;
  • Strong broad‑based scientific and pharmaceutical knowledge;
  • Clinical trial development and drug launch experience is strongly preferred;
  • Knowledge of treatment guidelines, clinical research processes, FDA regulations and OIG guidelines is required;
  • Knowledge and experience within Eisai’s desired therapeutic area(s) and ability to communicate confidently and accurately across multiple disease states;
  • Established relationships with…
Position Requirements
10+ Years work experience
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