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Accounts Payable Associate

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Menlo Park, CA
Posted 3 months ago
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Job Description

Ready to redefine what's possible in molecular diagnostics?

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.

With over 700 employees, half a million patients helped, and one of the most successful IPOs in medical diagnostics history behind us, we're just getting started. 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.

The Accounts Payable Associate will be responsible for processing and managing vendor invoices, payments, and expense reports in an accurate and timely manner. This role will ensure proper financial controls, assist with month-end close activities, and collaborate with various departments to resolve invoice discrepancies. The ideal candidate is detail-oriented, highly organized, and able to manage multiple tasks efficiently in a fast-paced environment.

Responsibilities:

  • Invoice Processing: Review, verify, and process vendor invoices for accuracy, ensuring timely and accurate payments.
  • Payment Management: Prepare and execute payment runs, including ACH, wire transfers, and checks.
  • Expense Reports: Review and process employee expense reports, ensuring compliance with company policies and appropriate documentation.
  • Reconciliation: Perform vendor statement reconciliations and resolve any discrepancies with vendors and internal departments.
  • Month-End Close: Assist in month-end close activities, including the preparation of accounts payable-related journal entries and accruals.
  • Vendor Relations: Build and maintain strong relationships with vendors and respond to inquiries regarding payment status or discrepancies.
  • Documentation: Maintain accurate and up-to-date files of invoices, receipts, and payment records for auditing and reporting purposes.
  • Compliance: Ensure proper coding and compliance with internal policies, as well as external financial regulations.

Qualifications:

  • Bachelor’s degree in Accounting, Finance, or related field preferred, or equivalent relevant experience. Proven experience as an Accounts Payable Associate, Finance Clerk, or similar role.
  • Strong understanding of accounts payable processes, including invoice processing, vendor management, and reconciliations.
  • High attention to detail, organizational skills, and the ability to manage multiple tasks in a fast-paced environment.
  • Proficiency with accounting software and Excel; experience with ERP systems (such as SAP or NetSuite) is a plus.
  • Strong problem-solving skills and the ability to communicate effectively with vendors and internal departments.
  • High degree of accuracy and accountability in financial transactions.

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 new parents (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, (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 $94,620 per year, including a base pay range of $73,920 $79,200 per year.

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.

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 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. 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 $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.

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

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