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.

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 Revenue Cycle/Medical Collections Associate to be responsible for focusing on collections and appeals from various Federal, State, & Third Party (HMO, PPO, IPA, TPA Indemnity) payers. This is a remote position and will report to the Manager of Reimbursement Operations. The ideal candidate must be able to:

(1) Optimize payment reimbursements by reviewing accounts for billing accuracy and health plan coverage.

(2) Be persuasive and persistent when following up on claims status, and

(3) process an appeal, resubmit/rebill, or forward claims for adjudication as necessary.

Responsibilities:

Verify claim was submitted to correct insurance.
Review/update patient demographics and information for accuracy.
Process and validate payor requests and claims via correspondence, remittance advice and EOBs (i.e., identify payment discrepancies, inappropriate requests)
Investigate all denied services to determine reason and appeal, if appropriate. Identify and report root causes associated with denials to reduce/resolve issues.
Process assigned appeals including submission, tracking, reporting and evaluation of appeal outcomes (i.e., next steps, improved outcomes)
Maximize utilization of Billing system, tools and resources to support cash collection activities
Review various reports including aging outstanding and denial reports.
Comply with Federal and State legislation on all billing related matters.
Comply with all Safety, Emergency, Hazard, OSHA, HIPAA, Quality Assurance and Administrative Plans, Policies, Guidelines, Protocol, and Standards.
Support and maintain department cash and DSO goals.

Qualifications:

Minimum of 4+ years specializing in Medical Collections at a diagnostics company, laboratory or other healthcare provider, doing collections from commercial payers.
Hands-on experience handling the entire appeals process
Must possess detailed knowledge of all medical benefit levels and have a thorough understanding of Federal, State, & PPO, HMO, and Indemnity Plans structures.
Working knowledge of appropriate coding systems; CPT, ICD-10 and HCPCS, coverage; LCD/NCD and reimbursement associated with such codes.
High School Diploma or a Bachelor’s degree from a four-year college or university
Strong problem solving skills with ability to streamline and improve processes, use good judgment, attention to detail and follow-through are a must.
Excellent customer service skills; excellent verbal and written communication skills
Excellent troubleshooting and time management skills, attention to detail, utilizes time in constructive manner
Ability to easily adapt to increased business demands
Ability to effectively work with and resolve complex accounts & billing issues
Self-starter, ability to work independently and be self-motivated to overachieve goals.
Ability to effectively prioritize and multi-task
Ability to work in fast paced environment, perform under pressure, meet tight timelines
Establish and maintain cohesive and good working relationships

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)

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 parental leave, etc.).

For this position, we offer a total compensation package of $65,141 per year, including a base pay rate of $28.47 per hour.

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. 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