Medical Science Liaison (MSL), Prenatal

BillionToOne
Illinois +7 more
Remote

Who this role is best for

Aimed at mid-level to senior-level professionals in prenatal genetic counseling who can travel extensively and engage in scientific exchange with healthcare providers.

Best fit for

  • Candidates with 3-5 years of prenatal clinical or industry experience and board certification in genetic counseling
    — “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”
  • Individuals who thrive in a collaborative, mission-driven environment with a passion for precision medicine
    — “transparency fuels trust, collaboration drives breakthroughs, and every contribution moves the needle on our mission”
  • Professionals comfortable with nationwide travel and engaging multiple audiences in scientific discussions
    — “Expertise in discussing scientific content and context to multiple audiences Ability to travel up to 70%”

Things to consider

  • This role demands a high level of travel, potentially up to 70% of time nationwide
    — “Ideal candidate will have the ability to travel up to 70% nationwide”
  • The position is remote but requires field-based engagement with healthcare providers
    — “The Medical Science Liaison (MSL) is a remote position”

How to stand out

  • Emphasize experience in prenatal genetic testing and scientific communication in your resume and interview responses
    — “providing medical and scientific support for BillionToOne's marketed products UNITY™ Complete”
  • Highlight your ability to engage with multiple audiences and provide balanced clinical and scientific information
    — “Expertise in discussing scientific content and context to multiple audiences”
  • Demonstrate your track record of contributing to educational materials or provider training programs
    — “Contribute to development of provider and patient educational products”
Pace · Fast PacedCollaboration · HighAutonomy · MediumDecision Impact · Team

Derived from job-description analysis by Serendipath's career intelligence engine.

What success looks like

  • 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
Typical background
Master’s degree in Genetic CounselingBoard certified ABGC or ABMG

Skills & requirements

Required

Scientific And Clinical Expertise In Prenatal Genetic TestingExcellent Communication, Presentation And Interpersonal SkillsAbility To Travel Up To 70% Nationwide

Preferred

Bilingual In English And Spanish

Stack & domain

Genetic CounselingPrenatal Genetic TestingCommunicationPresentationInterpersonal SkillsABGCABMGHealthcareGenomics

About the role

Original posting from BillionToOne via Greenhouse

A Rare Opportunity to Shape the Future of Genomics

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.

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) in Illinois, Minnesota, Missouri, Kansas, Florida, North Carolina, South Carolina, or Texas 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 eligible employees (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 (free healthcare options, 401k match, very generous fully paid parental leave, etc.).

For this position, we offer a total compensation package of up to $186,855 per year, including a base pay range of $139,340 - $160,777 per year.

BillionToOne is an equal opportunity employer. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.

For more information about how we protect your information, we encourage you to review our Privacy Policy.

BillionToOne is a next-generation molecular diagnostics company on a mission to make powerful, accurate diagnostic tests accessible to everyone. Our revolutionary QCT molecular counting technology enhances disease detection resolution by over a thousandfold using cell-free DNA,a breakthrough that has already transformed the lives of over half a million patients worldwide.

Our Impact

Unity Complete™ is the only non-invasive prenatal screen capable of assessing fetal risk for both common recessive conditions and aneuploidies from a single maternal blood sample.

Unity Confirm™ enables non-invasive confirmation for high-risk screening results through the capture of intact circulating fetal cells using BillionToOne’s Fetal Cell Capture™ Technology.

Our Northstar® liquid biopsy test uniquely combines treatment selection with real-time monitoring, giving oncologists unprecedented precision in cancer care.

Our Growth

From $0 to $400M+ annualized revenue run-rate in just 6 years. In 2025, we completed one of the most successful IPOs for a medical diagnostics company, building on nearly $400M in private funding,including our $130M Series D in 2024 and backed by world-class investors including Hummingbird, Adams Street Partners, Neuberger Berman, Baillie Gifford, and Premji Invest.

Our Recognition

Forbes named us one of America's Best Startup Employers for 2025 and we're Great Place to Work certified, with 100% of our people willing to go the extra mile, even as we've scaled to over 700 employees.

Our Future

Headquartered in Menlo Park with facilities in Union City, CA, and a new lab opening in Austin, TX in 2027, we're continuing to push the boundaries of what's possible in molecular diagnostics. We're just getting started.

Ready to help us change the world, one molecule at a time? Learn more at billiontoone.com

Source: BillionToOne careers (Greenhouse)

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