Director, Medical Science Liaison (MSL)

We are seeking an exceptional Director, Medical Science Liaison (MSL) to lead and develop our commercial-facing Medical Science Liaison team as we expand and accelerate clinical adoption of the Karius Test portfolio.

Reporting to the Vice President of Sales, the MSL Director works closely with the Regional Sales Director to build and execute a coordinated scientific and commercial partnership strategy that enhances account development, increases clinical utilization, and drives successful adoption of Karius tests.

The MSL Director leads a team of MSLs responsible for educating clinicians, Lab Directors, and other healthcare stakeholders on the clinical value and utility of Karius tests. The team supports institutions in developing best practices and protocols to maximize test utility; cultivates clinical champions and key opinion leaders; and provides education and clinical context to the sales organization.

This role supports pre- and post-sale activities, ensures strong alignment between Medical and Commercial teams, and serves as a key conduit for clinical insights that inform marketing, evidence generation, product development, and customer-facing education programs.

Primary Responsibilities

Clinical and Scientific Influence with Business Impact

• Partner with Regional Sales Directors and Clinical Sales Managers (CSMs) to support pre- and post-sale activities, ensuring the MSL team assists with the clinical close of the sale and contributes directly to territory and regional performance goals.
• Provide medical and scientific expertise that strengthens account development, accelerates clinical adoption, and supports successful onboarding and expansion within customer sites.

Team Leadership and Coaching

• Recruit, hire, train, and lead a high-performing field team of Medical Science Liaisons (MSLs).
• Coach and develop MSLs to effectively communicate clinical value, influence clinical decision-making, and support commercial objectives in partnership with Sales.
• Ensure the MSL team maintains high levels of clinical expertise and consistently delivers credible, compliant scientific engagement.

Clinician Engagement and Clinical Adoption

• Deliver and support formal presentations and educational programs (e.g., Grand Rounds, ASP meetings, roundtables) using peer-reviewed publications, clinical evidence, case studies, and approved materials.
• Assist institutions in developing and implementing best practices, protocols, and workflows to maximize the clinical utility of Karius tests.
• Build and maintain strong relationships with clinicians, clinical champions, and future key opinion leaders (KOLs) to support clinical adoption and long-term success.
• Identify, support, and elevate centers of excellence that can serve as benchmarks for other customer sites.

Cross-Functional Strategy and Field Alignment

• Support alignment and communication between Medical and Commercial teams to support seamless customer experience and consistent field execution.
• Collaborate with Sales, Marketing, Medical Affairs, and Product teams to relay clinical insights that inform marketing programs, sales initiatives, product development, and corporate strategy.
• Foster relationships with advisors, consultants, investigators, expert speakers, and strategic partners to enrich field education and support broader organizational objectives.

Medical Expertise, Evidence and Content Integrity

• Review promotional, educational, and marketing materials to ensure scientific and medical accuracy.
• Maintain deep and current expertise in infectious diseases, diagnostics, and clinical applications of the Karius Test through participation in internal meetings, committees, and ongoing medical education.
• Work closely with Medical Affairs, Medical Directors, and Sales Training to ensure the field team remains up-to-date on the latest clinical evidence and relevant data.
• Contribute to clinical evidence generation strategies by providing field observations, customer feedback, and insights into emerging clinical needs.