Automation Service Engineering Associate I/II, Oncology

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 Automation Service Engineering Associates I/II to join our growing Service Engineering team in support of clinical patient testing in one of our CLIA labs. The Automation Service Engineering Associate I/II will be responsible for delivering primary service response to laboratory operations at the Billion To One - Menlo Park (Oncology) location. The selected candidate will be part of a team responsible for 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.

• →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

• BS degree in a scientific discipline
• Associate II: 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)

• 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

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

From $0 to $150M+ in Annual Recurring Revenue in just five 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.

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.

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