Senior Manager / Associate Director of Client Services

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 a Senior Manager / Associate Director, Client Services, Prenatal to lead client service teams in a diagnostic laboratory environment. This role is part of a broader Client Services organization. Final title and level will be determined based on the candidate's experience and interview performance.

This leader plays a critical role in delivering efficient, high-quality client and patient support for our Unity non-invasive prenatal screening test. The team handles inbound and outbound communications and tickets from patients, clients, and internal teams. You will maintain customer satisfaction and drive continuous improvement across the organization. This is a full-time onsite position and reports to the Director of Client Services and Inside Sales.

Working hours are Monday to Friday, 8:30 AM to 5:00 PM PT.

Role Levels:

• Senior Manager: Leads a team of up to 12, including a Lead/Supervisor, and is heavily involved in day-to-day operations, including escalations, coaching, quality, and daily performance against KPIs.

• Associate Director: Owns a broader scope, managing established managers across functions that impact the patient experience and leading larger strategic initiatives for the Client Services organization.

Responsibilities:

• Team Leadership: Lead, mentor, and motivate the Client Services team (Senior Manager: up to 12 team members, including a Lead/Supervisor; Associate Director: established managers and their teams). Set performance goals, conduct semi-annual performance evaluations, and coach team members to improve individual and team performance.

• Customer Support: Manage and resolve escalated inquiries, issues, and complaints related to our screening test or patient results. Respond to customers promptly and accurately by phone, email, or Slack, and maintain high customer satisfaction and a positive patient experience.

• Troubleshooting: Partner with technical teams and key stakeholders to resolve complex customer, operational, and technical issues in a timely manner. Equip the team with the knowledge and resources to diagnose and troubleshoot problems, and demonstrate proficiency with our proprietary digital tools to continuously improve the user experience.

• Process Improvement: Continuously review and improve customer service standard operating procedures (SOPs) and policies to increase efficiency and productivity. Analyze customer feedback and performance metrics to identify opportunities and implement improvements.

• Training and Development: Develop training programs and materials, and lead regular training sessions and workshops, so representatives have the product knowledge, technical skills, and customer service techniques they need.

• Reporting and Analysis: Monitor and analyze key performance indicators (KPIs) such as response time, average speed to answer, first-call resolution, and customer satisfaction. Prepare regular reports and present findings and recommended actions to senior management.

• Cross-functional Collaboration: Work with Sales, Marketing, and Product Development to relay customer feedback, address product issues, and contribute to product and service improvements. Build strong working relationships and promote a customer-centric culture across the organization.

Qualifications:

• Bachelor’s degree in business, life sciences, healthcare administration, or a related field.

• Senior Manager: Minimum of 5 years of total experience, including at least 3 years in a people management role.

• Associate Director: Minimum of 8 years of total experience, including at least 5 years in people management and experience leading managers.

• Experience in a diagnostics laboratory, life sciences, or prenatal multi-customer-facing environment preferred.

• Strong leadership skills with the ability to inspire and motivate a high-performing team.

• Experience interviewing, hiring, and building out a strong customer service team.

• Experience holding 1:1s with team members and delivering performance appraisals.

• Ability to work in a very fast-paced, dynamic environment.

• Exceptional verbal, written, and presentation skills; ability to effectively tailor messages to different audiences, both internally and externally.

• Passion for creating a delightful experience for internal and external customers.

• Forward-thinking, with an innate ability to break down and de-escalate complex situations with little or no guidance.

• Proven track record in a customer service management role; excellent problem-solving and troubleshooting capabilities.

• Proficiency in customer relationship management systems and tools, particularly Salesforce Lightning.

• Strong analytical and reporting skills, with the ability to analyze and interpret KPI metrics.

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 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, on top of (3) industry leading company benefits (free healthcare options, 401k match, very generous fully paid paternal leave etc.).

Senior Manager: The base salary range for this role is $174,068 to $184,947. This position is eligible for an annual bonus and receives a new hire equity grant of up to $90,000 at grant value, vesting over four years, plus annual equity refresh grants equal in value to the new hire grant. Together, the total four-year value of base, target bonus, and equity is up to approximately $1.1 million. We also offer competitive medical and dental coverage and a 401(k) with company match.

Associate Director: The base salary range for this role is $184,947 to $195,826. This position is eligible for an annual bonus and receives a new hire equity grant of up to $105,000 at grant value, vesting over four years, plus annual equity refresh grants equal in value to the new hire grant. Together, the total four-year value of base, target bonus, and equity is up to approximately $1.2 million. We also offer competitive medical and dental coverage and a 401(k) with company match.

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. For more information about how we protect your information, we encourage you to review our Privacy Policy.

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 has already transformed the lives of over half a million patients worldwide.

Our Impact

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.

Our Growth

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.

Our Recognition

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.

Our Future

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