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.

We are seeking a Data Entry Associate (Temporary) to provide critical operational support within BillionToOne’s Client Services organization. This individual will be responsible for accurately and efficiently entering and verifying patient and order data. The ideal candidate is detail-oriented, thrives in a structured and fast-paced environment, and takes pride in precision and consistency.

This is an onsite position located at our state-of-the-art, 90,000-square-foot facility in Union City, CA, reporting to the Client Services Manager.

Working hours: Monday–Friday, 8:00 AM – 5:00 PM PT

Responsibilities:

• Perform accurate and timely data entry of 100–150 patient test requisitions per day into company systems
• Review requisition forms for completeness, accuracy, and compliance prior to entry
• Enter patient demographic, clinical, and order information into LIMS and CRM (Salesforce, Zendesk, etc.) systems
• Identify missing or inconsistent information and flag for follow-up or escalation
• Maintain strict adherence to HIPAA and internal data protection standards, ensuring confidentiality of all patient and client information
• Collaborate with Client Services, Billing, and Operations teams to resolve discrepancies or missing information
• Support data audits, process documentation, and other projects as needed
• Adhere to company policies, procedures, and deadlines while demonstrating initiative and flexibility in handling evolving tasks and priorities

Qualifications:

• High school diploma or equivalent required; associate’s or bachelor’s degree preferred
• 1+ year of experience in data entry, administrative, or clerical roles (healthcare or laboratory experience a plus)
• Proven ability to process high volumes of data with accuracy and speed
• Proficiency in Microsoft Excel, Google Sheets, or similar tools
• Familiarity with CRM or LIMS systems is a plus
• Excellent attention to detail and organizational skills
• Strong written and verbal communication abilities
• Ability to work independently while meeting productivity and quality standards

Preferred Qualifications:

• Experience handling medical or laboratory requisitions or patient data.
• Understanding of HIPAA regulations and data privacy best practices.
• Comfort working in a high-volume, deadline-driven operational environment.

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
• Retirement savings program including a 4% Company match
• Latest and greatest hardware (laptop, lab equipment, facilities)
• 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)

At BillionToOne, we are proud to offer a combination of (1) competitive base pay and (2) the opportunity for professional growth.

For this position, the base pay rate is $22.78 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