Ready to redefine what's possible in molecular diagnostics?

Join a team of brilliant, passionate innovators who wake up every day determined to transform healthcare. At BillionToOne, we've built something extraordinary—a culture where transparency fuels trust, collaboration drives breakthroughs, and every voice matters in our mission to make life-changing diagnostics accessible to all. We don't just aim for incremental improvements; we strive to build products that are 10x better than anything that exists today. Our people are our greatest asset: talented scientists, engineers, and visionaries 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—every innovation you contribute helps remove fear of unknown from some of life's most critical medical moments. If you're driven by purpose, energized by innovation, and ready to help build the future of precision medicine, this is where you belong.

BillionToOne is looking for a Director of Market Access to provide leadership, strategic direction, and overall management of payer relations to meet the Company's reimbursement objectives. Reporting to the VP of Market Access, the  Director of Market Access will be responsible for leading and implementing both strategic and tactical reimbursement activities within the areas of coverage, contracting, and payment. The role involves interaction with payers, physicians, sales, marketing, regulatory, product, medical affairs, and other applicable company personnel to secure contracts for BillionToOne tests. In addition, the person will serve as a liaison between customer and company personnel on administrative matters, including but not limited to the resolution of contracted payer issues. Typically involved with senior management and/or multiple decision-makers with payers, arranging interactions with appropriate medical affairs, technical, financial, and management personnel at the Company as necessary.

Demonstrates thorough knowledge of the contracting process, established guidelines, contract management, policy development, and fee schedules.  Works directly with private and government payers, lab benefits managers, and medical technology groups. Provides ongoing feedback and support to the VP of Market Access on process improvements and necessary updates to overall policy development and contracting.  

Assists and supports the VP of Market Access in all activities related to developing Market Access targets, strategy, tactics, annual business goals, tools, and presentations. Provides support for the marketing team with developing sales collateral and other payer-related marketing activities. Collaborates with product and clinical teams to help design and execute clinical programs to support the development of strong economic value propositions. Works with reimbursement and appeals teams to facilitate policy development and contracts.

Candidates must reside in or be willing to travel to work in the Northeast region of the United States.
Northeast Region: New York, New Jersey, Connecticut, Vermont, Delaware, District of Columbia, Maine, Maryland, Massachusetts, Maine, New Hampshire, Pennsylvania, Rhode Island, Virginia

Responsibilities:

• Facilitates the management of key business relationships with assigned national and regional payors.
• Responsible for developing strong payer relationships at an executive level and negotiating potential business opportunities for the Company consistent with its long-term strategy.
• Responsible for gaining new contracts, including negotiating pricing and contract terms, and then driving all associated activity to implement the strategy related to those contracts.
• Develop business plans for each account assigned; monitor and report progress monthly, and develop and implement tactics to exceed sales and company goals.

 Requirements:

• A bachelor’s degree in science, business, or a healthcare-related field is required.
• 3-5 years of experience in Market Access with a proven track record of success with special projects and complex selling scenarios, including adoption and reimbursement of disruptive innovation or transformative products or services, reversals of threatened contract terminations, consistent increase in negotiated rates, and contracting for previously excluded services.

Knowledge, Skills & Abilities:

• Experience developing and executing strategic plans to obtain optimal payer coverage/policies and reimbursement for prenatal/oncology tests.
• Self-driven, passionate, innovative, and able to manage multiple tasks in a fast-paced environment.
• Ability to build cross-functional teams that share information and achieve positive results.
• Ability to manage multiple projects that are highly complex in nature and broad in scope.
• Competent in computer skills. Familiar with Microsoft Office programs such as Access, Word, Excel, and PowerPoint
• High level of intensity, enthusiasm, and professionalism

Benefits And Perks:

• Working with a team of ‘rockstars’ who bring out the best in everyone
• An open, transparent culture that includes weekly Town Hall meetings
• The ability to indirectly or directly change the lives of hundreds of thousands of patients
• Multiple medical benefit options; employee premiums paid 100% of select plans, dependents covered at 80%
• Extremely generous Family Bonding Leave for new parents (16 weeks, paid at 100%)
• Retirement savings program including a 4% Company match
• Latest and greatest hardware (laptop, lab equipment, facilities)

At BillionToOne, we are proud to offer a combination of a (1) base pay range (actual amount offered is based on experience and salary/equity options split that the candidate chooses), (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 up to $435,908 per year (at plan), including a base pay range of $208,080 - $234,090 per year.

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

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About BillionToOne

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's already transformed the lives of over 500,000 patients worldwide.

Our Impact: We've pioneered game-changing diagnostic solutions that are redefining industry standards. Unity Complete™ stands as the only non-invasive prenatal screen capable of assessing fetal risk for both common recessive conditions and aneuploidies from a single maternal blood sample. In oncology, 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 $125 million in Annual Recurring Revenue in just four years. We've raised close to $400 million in funding, including a $130 million Series D round in June 2024, achieving a valuation of over $1 billion. This backing comes from world-class investors including Hummingbird, Adams Street Partners, Neuberger Berman, Baillie Gifford, and Premji Invest.

Our Recognition: Forbes recently named us one of America's Best Startup Employers for 2025, and we were awarded Great Place to Work certification in 2024—with an incredible 100% of our people reporting they are willing to give extra to get the job done. These honors recognize not just our innovation but the exceptional culture we've cultivated—one that remains authentically collaborative and transparent even as we've scaled.

Our Future: Headquartered in Menlo Park with facilities in Union City, California, we're continuing to push the boundaries of what's possible in molecular diagnostics. Recent clinical outcomes data for Unity Fetal Risk Screen and new advances in cancer diagnostics prove we're just getting started.

At BillionToOne, you'll join a diverse team of passionate innovators who believe that the best science happens when brilliant minds collaborate openly, think boldly, and never lose sight of the patients whose lives depend on our work.

Ready to help us change the world, one diagnosis at a time?

Learn more at www.billiontoone.com