Client Services Associate I, Prenatal

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 a Client Services Associate I, Prenatal (Women's Health) to provide exceptional service and support to BillionToOne's customers. This role is part of a broader Client Services organization.

The Client Services Associate I holds a pivotal role in the organization and will act as the face of BillionToOne for our customers including physicians, OB/GYN clinics, auxiliary staff, and patients. The ideal candidate for this role is an ambitious and intelligent individual who is highly self-motivated and patient-centric.

The Client Services Associate I is a full-time onsite position and reports to the Client Services Manager.

Working hours are Monday–Friday or Tuesday–Saturday, 8:00 AM to 5:00 PM PT, based on business needs.

• →Engage clients through proactive outreach to obtain missing information needed to process and report test orders while delivering a personalized customer experience.
• →Manage a queue of cases requiring follow-up and follow a scheduled contact cadence until resolved.
• →Document all communications, follow-up attempts, and resolution details clearly in CRM and LIMS systems.
• →Update customer and order information in internal systems.
• →Resolve approximately 40–60 cases per day while maintaining quality and accuracy.
• →Respond professionally to phone, email, and web inquiries from customers, sales representatives, internal teams, and patients as needed.
• →Collaborate with laboratory, data entry, sales, billing, and support teams to ensure accurate order processing and timely reporting.
• →Update customer and order information in internal systems.
• →Identify recurring issues or workflow gaps and escalate trends appropriately.
• →Support process improvements and cross-functional tasks as needed.

• Prior client-facing experience in customer service, inside sales, call center, or a similar role.
• 4-year college degree or equivalent experience.
• Experience working in a fast-paced, high-volume environment with outbound call responsibilities.
• Excellent verbal and written communication skills.
• Strong attention to detail and accurate documentation.
• Ability to learn quickly, navigate systems, and resolve issues independently.
• Passion for providing a positive customer experience.

• Experience with CRM tools such as Salesforce, Zendesk, or similar systems.
• Customer service experience in a diagnostic laboratory, healthcare, or medical office setting.
• Experience managing outbound call queues or scheduled follow-up cadences.
• Proficiency or fluency in Spanish to support a diverse client and patient base.

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.
Unity Confirm™ enables non-invasive confirmation for high-risk screening results through the capture of intact circulating fetal cells using BillionToOne’s Fetal Cell Capture™ Technology.
Our Northstar® liquid biopsy test uniquely combines treatment selection with real-time monitoring, giving oncologists unprecedented precision in cancer care.

From $0 to $400M+ annualized revenue run-rate in just 6 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