Senior Software Engineer
BillionToOne
About this role
A Senior Software Engineer at BillionToOne will join the Oncology software engineering team to support the company’s molecular diagnostics products and clinical software initiatives. The role is part of a cross-functional environment that bridges software, clinical, and computational biology teams and is based hybrid (onsite 2-3 days/week). The position contributes to building scalable systems that enable precision medicine for clinicians and patients.
Skills
About BillionToOne
billiontoone.comBillionToOne is a genomics diagnostics company focused on advancing disease detection, with primary emphasis on noninvasive prenatal screening and liquid biopsy. They use proprietary molecular counting technology to improve sensitivity for detecting rare genetic variants and low-frequency signals in cell-free DNA, enabling more accurate prenatal and oncology testing. BillionToOne develops and markets clinical assays and partners with healthcare providers and labs to bring those tests into clinical practice. The company is publicly traded on NASDAQ under the ticker BLLN.
Recent company news
Simply Wall StBillionToOne Market Share Gains Raise Questions On Undervalued BLLN Stock
4 days ago
ReutersBillionToOne valued at $4.4 billion as shares surge in blockbuster Nasdaq debut
Nov 6, 2025
MinichartBillionToOne’s Single-Molecule Next-Generation Sequencing Platform Redefines Molecular Diagnostics for Prenatal and Oncology Care 404148
9 hours ago
GenomeWebBillionToOne Shares Surge Following Firm's $273M IPO
Nov 6, 2025
MarketBeatBilliontoone (NASDAQ:BLLN) Sees Large Volume Increase on Better-Than-Expected Earnings
6 days ago
About BillionToOne
Headquarters
San Francisco, CA
Company Size
201-500 employees
Founded
2018
Industry
Technology
Glassdoor Rating
4.2 / 5
Leadership Team
Sarah Johnson
Chief Executive Officer
Michael Chen
Chief Technology Officer
Emily Williams
VP of Engineering
David Rodriguez
VP of Product
Jessica Thompson
Chief Financial Officer
Andrew Park
VP of Sales
Unlock Company Insights
View leadership team, funding history,
and employee contacts for BillionToOne.
Salary
$190k – $211k
per year
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