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, sales professionals, 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 an Translational Research Scientist, Prenatal to lead the translational research and clinical evidence generation for our groundbreaking prenatal tests.

This is an interdisciplinary and inter-functional role, where you would work closely with the clinical affairs team that is responsible for clinical research execution, the medical affairs team, bioinformatics team, and external research collaborators, for the results analysis, insights generation, and publications. This is a hybrid role and reports to the Director of Clinical Affairs.

If you are a scientist with superb data analysis skills who is passionate about translational research at the forefront of precision medicine, this is the perfect opportunity for you.

Key Responsibilities:

• Drive clinical study data analysis and insights generation: Drive analysis of the UNITY assay results combined with clinical outcomes data to derive insights
• Turn analytical data into clinically actionable insights: Through clinical data analysis, develop appropriate approaches to turn assay values into clinically actionable results category
• Clinical evidence generation strategy development: Work closely with the clinical and medical affairs, market access, product, and commercial teams to identify the high-priority areas for clinical evidence generation. Support the clinical team with the clinical study design and data management
• Scientific Writing and Publication: Drive the publication process through data analysis and manuscript writing

Requirements

• Ph.D. in Bioinformatics, Computational Biology, Bioengineering, Molecular Biology, or related field
• 2 years of biology, bioinformatics, or epidemiology research experience (during PhD or afterwards)
• Expertise in Python, R, or a similar programming language
• Experience with medical data analysis
• Experience in clinical and genomic data analysis
• Excellent communication, presentation, and scientific writing skills
• Ability to collaborate effectively with cross-functional team
• Nice-to-haves: ability to design data science ELT pipelines, build agentic AI models, and analyze multi-modal data for biological insights

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
• The ability to indirectly or directly change the lives of hundreds of thousands patients
• Free daily on-site lunches provided from top eateries
• A variety of perks on campus (state of the art gym, restaurant)
• Free on-site EV charging (compatible with all EVs, including Tesla)

For this position, the target hourly rate is: $125-$150 per hour.

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.

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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 half a million 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