Senior Software Engineer, Digital Experiences

<div class="content-intro"><h2><strong>A Rare Opportunity to Shape the Future of Genomics</strong></h2> <p>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.</p> <p>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.</p> <p>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.</p></div><p>We are currently looking for a high-performing <strong>Senior Software Engineer&nbsp; </strong>to join our dynamic software engineering team. Software engineers at BillionToOne work in highly collaborative and interdisciplinary teams of clinicians, computational biologists, and other engineers to robustly scale personalized genomic medicine to millions of patients. If you have experience performing in a full life-cycle development, love seeing your work positively affect your colleagues and patients, and thrive in a fast-paced entrepreneurial environment, this could be a great opportunity for you.<strong> </strong>In this role, you can have an impact both through many small tools and large product development. This role is a <strong>hybrid</strong> (onsite 2-3 days/week) position.</p> <p><strong>Projects you may work on include:</strong></p> <ul> <li>Build a seamless digital experience so clinicians and patients across a diversity of care centers and socioeconomic status can have access to BillionToOne’s highly complex genetic testing</li> <li>Help digitize laborious and error-prone paper-based workflows at busy OBGYN clinics</li> <li>Enable better transfer of care through portable electronic medical records&nbsp;</li> <li>Infuse joyful experiences into pregnancy</li> </ul> <p>Technologies we use include: Python, Django, Postgres, React, Typescript, AWS, Salesforce, and emerging AI-assisted coding environments (e.g., Cursor, GitHub Copilot, Claude Code)</p> <p><strong>Responsibilities:</strong></p> <ul> <li>Build and maintain robust applications and systems using React, Typescript, Django, Po