Clinical Laboratory Associate (CLA), Prenatal and Oncology
Billiontoone · Menlo Park or Union City, CA · Posted Jun 26, 2026
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A Rare Opportunity to Shape the Future of Genomics
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 passionate Clinical Laboratory Associates (CLA) to be responsible for assisting our day-to-day operations, providing equipment maintenance in the clinical laboratory, completing the pre-analytical phase of testing (e.g., specimen receipt, accessioning, and plasma/buffy coat isolation), performing quality assurance procedures, while complying with all local, state, and federal laboratory requirements. The Clinical Laboratory Associate (CLA) is an onsite position (Union City or Menlo Park) and provides a great opportunity for career growth - at BillionToOne, we offer an array of career growth opportunities and a clear growth tracks supported by our performance reviews (every 6 months).
Available Shift Hours:
Union City: Tue - Sat, 3:00 PM - 11:30 PM / Mon - Fri, 3:00 PM - 11:30 PM
Menlo Park: Tue - Sat, 7 AM - 3:30 PM / Sun - Thur, 7 AM - 3:30 PM / Mon - Fri, 3 PM - 11 PM
Responsibilities:
Perform specimen receipt and accessioning according to the laboratory’s standard operating procedures
Perform isolation procedures according to the laboratory’s standard operating procedures to CLA responsibilities
Maintain equipment according to the laboratory’s standard operating procedures
Clean labware, equipment, and benches
Prepare documents and binders for equipment and personnel records
Document all corrective actions taken when test systems deviate from the established performance specifications
Perform and document routine preventative maintenance
Prepare reagents required for laboratory preparation
Communicate effectively with coworkers and non- laboratory personnel
Report all concerns of accessioning quality and/or safety to the Laboratory Director, Supervisor, or Safety Officer
Participate in inspection preparation activities
Review of controlled documents as assigned
Participate in the training of new accessioning personnel on current procedures including the following:
Provide hands-on training
Provide guidance, feedback, and mentorship while respecting various learning styles
Ensure appropriate documentation is reviewed and completed
Participate in training meetings
Prioritize a positive work environment
Exhibit a dedication to team work above and beyond scheduled daily work
Participate in projects and process improvements for sample receipt and accessioning
Qualifications:
Bachelor’s degree or equivalent in biology or related life sciences field
Excellent attention to detail
Effective written and verbal communication skills
The ability to multitask and work independently
Nice-To-Haves:
Biophysics, Molecular biology (DNA purification, PCR, electrophoresis) or next-generation DNA sequencing laboratory experience
At least 6 months of experience with molecular biology techniques in a research or clinical laboratory
Previous clinical laboratory experience is preferred
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
Open, transparent culture that includes weekly Town Hall meetings
The ability to indirectly or directly change the lives of hundreds of thousands patients
Multiple medical benefit options; employee premiums paid 100% of select plans, dependents covered up to 80%
Extremely generous Family Bonding Leave for eligible employees (16 weeks, paid at 100%)
Supplemental fertility benefits coverage
Retirement savings program including a 4% Company match
Increase paid time off with increased tenure
Latest and greatest hardware (laptop, lab equipment, facilities)
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, (2) the opportunity for professional …