Director, Medical Science Liaison; West

Director, Medical Science Liaison (West)

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$/yr - $/yr

Commission and Stock options

Karius is a venture-backed life science company focused on transforming the way infectious diseases are diagnosed. Combining Next-Generation Sequencing and proprietary data analysis, Karius Spectrum can identify over 1,000 pathogens from a single blood sample and Karius Focus BAL can identify 500 pathogens with a BAL fluid sample, both tests providing a result with typical turnaround time in one business day.

By unlocking the information present in microbial cell-free DNA, we're helping doctors quickly solve their most challenging cases, with a future vision of accelerating clinical trials, discovering new microbes, and reducing patient suffering worldwide.

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. The MSL Director plays a critical role in building a high-performing, collaborative medical field organization that advances Karius’ mission to improve the diagnosis and treatment of infectious diseases through advanced microbial cell-free DNA technology.

• 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.

• 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.

• Deliver and support formal presentations and educational programs (e.g., Grand Rounds, ASP meetings, round tables) 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.

• Support alignment and…