Clinical Genomics Scientist, Oncology

Position Overview

• Location Type: Remote or Menlo Park
• Job Type: Full-time
• Salary: Not specified

Ready to redefine what's possible in molecular diagnostics? Join a team of brilliant, passionate innovators who wake up every day determined to transform healthcare. At BillionToOne, we've built something extraordinary—a culture where transparency fuels trust, collaboration drives breakthroughs, and every voice matters in our mission to make life-changing diagnostics accessible to all. We don't just aim for incremental improvements; we strive to build products that are 10x better than anything that exists today. Our people are our greatest asset: talented scientists, engineers, sales professionals, and visionaries 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—every innovation you contribute helps remove fear of unknown from some of life's most critical medical moments. If you're driven by purpose, energized by innovation, and ready to help build the future of precision medicine, this is where you belong.

BillionToOne is looking for a Clinical Genomics Scientist, Oncology to help drive somatic mutation variant interpretation and reporting. BillionToOne has recently launched two oncology liquid biopsy products: Northstar Select™ and Northstar Response™ for late-stage solid-tumor cancer patients. Northstar Select™ is a comprehensive pan-cancer somatic mutation profiling panel. Northstar Response™ is a methylation-based, tissue-agnostic treatment response monitoring assay.

As a member of the oncology clinical genomics team, you are responsible for helping with day-to-day commercial reporting operations, including variant interpretation and report drafting. Working closely with the medical team, you will develop interpretation and reporting policies based on the latest publications and guidelines, and help scale-up our ever growing reporting needs. This role will report to the Senior Manager of Clinical Genomics, Oncology.

If you have a strong commitment to improving patient care through clear clinical reporting, have experience in somatic variant interpretation and report drafting, enjoy digging into the technical side of the data alongside bioinformatics, and thrive in a fast-paced entrepreneurial environment, this could be a perfect opportunity for you.

Key Responsibilities

• Somatic variant interpretation and data review: Perform somatic-based variant interpretation, diving into the literature and databases to classify variants and match treatments for reporting, performing verification as required with BAM file analysis.
• Clinical report drafting: Carefully draft reports for each requisition primarily using in-house reporting API, working closely with the engineering and QA teams on reporting, and the laboratory directors on report language.
• Somatic mutation interpretation and reporting policy development: Work closely with lab directors, R&D, medical, and other related functions to develop and modify the somatic interpretation SOPs in accordance with ACMG/AMP guidelines, and the latest published literature.
• Content curation: Contribute to curation of gene-level content such as domain and critical residue curation.
• Molecular tumor board: Serve as a subject matter expert in consulting with the medical science liaison team, and presenting in molecular tumor boards to facilitate knowledge sharing.
• Contribute to oncology R&D: Work closely with the R&D team to help with somatic oncology based projects, providing expertise on variant interpretation, biological pathways/mechanisms, and other gene/variant-level reviews and analyses.

Requirements

• Ph.D. in Human Genetics, M.S. in Genetic Counseling, or related field
• 2+ years of experience in somatic variant interpretation based on ACMG/AMP guidelines in a clinical setting (alternatively, 1+ years of germline variant interpretation and 1+ years of somat