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 looking for an Automation Service Engineering Associate II to join our growing Service Engineering team in support of clinical patient testing in our high throughput CLIA lab. The Automation Service Engineering Associate II will be responsible for delivering primary service response to laboratory operations at the Billion To One - Union City location. The selected candidate will be part of a team that handles the troubleshooting, repair, and maintenance of laboratory equipment. The ideal candidate for this position is skilled in providing excellent customer service, troubleshooting errors with laboratory automation equipment, and maintaining detailed records of issues and resolutions. The role is an onsite position.

Shift Hours: Tuesday-Saturday, 3pm-11:30pm (+PM Shift Differential)

Responsibilities:

• Work in a team responsible for service, support, and troubleshooting of automated processes and instrumentation
• Execute or coordinate routine maintenance of laboratory equipment
• Perform Installation, Operational, and Performance Qualification on equipment
• Troubleshoot and triage equipment issues and involve vendors as required
• Draft documentation related to equipment operation and maintenance as needed
• Suggest process improvements and design a plan to execute them
• Maintain organized equipment parts inventory and comprehensive equipment records
• Execute special projects as assigned

Requirements:

• BS degree in a scientific discipline
• 1+ years of experience servicing Liquid Handlers, or 2+ years experience in a technical service role
• Familiarity with the basics of a coding language and flow control logic
• Understanding of clinical laboratory assays and their applications
• Ability to identify, analyze and solve problems with minimal direction
• Strong willingness to learn in a complex laboratory environment
• Strong attention to detail and accuracy
• Excellent documentation skills with working knowledge of Good Document Practices (GDP)
• Strong communication skills (verbal and written)

Nice-to-Haves:

• Experience with troubleshooting liquid handler scripts is desirable
• Programming and coding experience
• Experience working in a CLIA regulated environment
• Experience developing training programs and performing knowledge transfer
• Ability to effectively work in a team environment and build strong working relationships
• High degree of initiative and self-motivation

Benefits And Perks:

• Working with a team of ‘rockstars’ who bring out the best in everyone
• 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 at 80%
• Extremely generous Family Bonding Leave for new parents (16 weeks, paid at 100%)
• Retirement savings program including a 4% Company match
• Free daily on-site lunches provided from top eateries
• Latest and greatest hardware (laptop, lab equipment, facilities)
• 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 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 of $78,500 per year, including a base pay rate of $30.41 to $31.25 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