Medical Science Liaison (MSL), Prenatal

Confirmed live in the last 24 hours

BillionToOne

Remote

Posted April 6, 2026

Job Description

Ready to redefine what's possible in molecular diagnostics?

Join a team of brilliant, passionate innovators determined to transform healthcare. At BillionToOne, we've built a category-defining, publicly traded company on Nasdaq where transparency fuels trust, collaboration drives breakthroughs, and every contribution moves the needle on our mission to make life-changing diagnostics accessible to all. We don't just aim for incremental improvements; we build products that are 10x better than anything that exists today.

With over 700 employees, half a million patients helped, and one of the most successful IPOs in medical diagnostics history behind us, we're just getting started. Our scientists, engineers, sales executives, and visionaries are united by an unwavering commitment to changing the standard of care in prenatal and cancer diagnostics. This is where cutting-edge science meets human compassion, and every innovation you contribute helps remove the fear of the unknown from some of life's most critical medical moments.

If you're driven by purpose, energized by innovation, and ready to help shape the future of precision medicine at scale, this is where you belong.

We are looking for a field-based professional Medical Science Liaison (MSL) with scientific and clinical expertise in the space of prenatal genetic testing. The Medical Science Liaison (MSL) is responsible for providing medical and scientific support for BillionToOne's marketed products UNITY™ Complete. The Medical Science Liaison (MSL) is a remote position.

Travel Requirements: Ideal candidate will have the ability to travel up to 70% nationwide

Responsibilities:

Serve as a key liaison to health care providers (HCPs)
Serve as a key member of the BillionToOne Medical Affairs team
Develop relationships by engaging in scientific exchange with medical and scientific partners
Support commercial team by providing impactful information that enhances the value and proper use of BillionToOne products
Respond to HCP customer inquiries to provide focused and balanced clinical and scientific information that supports the appropriate use of BillionToOne’s prenatal products
Provide education regarding the clinical differentiation of BillionToOne's products and services
Contribute to development of provider and patient educational products
Adhere to internal standard processes and comply with regulatory and compliance requirements

Qualifications:

Master’s degree in Genetic Counseling
Board certified ABGC or ABMG
3-5 years of prenatal clinical and/or industry experience in related field required
Expertise in discussing scientific content and context to multiple audiences
Excellent communication, presentation and interpersonal skills
Ability to travel (up to 70%) – percentage varies with geography

Nice-To-Haves:

Bilingual in English and Spanish is a plus, but not required

Benefits And Perks:

Working alongside brilliant, kind, passionate and dedicated colleagues, in an empowering environment, toward a global vision, striving for a future in which transformative molecular diagnostics can help millions of patients
Open, transparent culture that includes weekly Town Hall meetings
The ability to indirectly or directly change the lives of hundreds of thousand patients
Multiple medical benefit options; employee premiums paid 100% of select plans, dependents covered up to 80%
Extremely generous Family Bonding Leave for new parents (16 weeks, paid at 100%)
Supplemental fertility benefits coverage
Retirement savings program including a 4% Company match
Increase paid time off with increased tenure
Latest and greatest hardware (laptop, lab equipment, facilities)

At BillionToOne, we are proud to offer a combination of (1) competitive base pay, (2) generous equity options offering, (3) corporate bonus program, on top of (4) industry leading company benefits

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