Senior Software Engineer, BillionToOne

• 5+ years of professional software development experience with a proven track record of delivering complex projects and adhering to best practices
• Expertise in Python backend frameworks (e.g., Django or Flask), delivering high-quality, scalable code
• Strong foundation in cloud services, preferably AWS, including ECS, S3, AWS Batch, EC2, and AWS Lambda, enabling effective architecture and management of complex systems
• Excellent communication and collaboration skills, with the ability to work effectively in a team-oriented environment
• Proven track record of building products and features from conception to deployment, showcasing your ability to innovate and deliver results
• Excel in resolving issues and enhancing performance and maintainability in a codebase at scale, demonstrating your commitment to excellence
• Excited about working in-person with our team in Menlo Park
• If you’re passionate about creating technology that transforms healthcare and thrive in a collaborative, fast-paced environment, we’d love to hear from you

Desirable

• We are currently looking for a high-performing Senior Software Engineer to join our dynamic software engineering Oncology 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
• In this role, you can have an impact both through many small tools and large product development
• 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
• Help digitize laborious and error-prone paper-based workflows at busy Oncology clinics
• Enable better transfer of care through portable electronic medical records
• Collaborate with talented engineers to design and develop our backend services, data processing pipelines, and interfaces, driving innovation and efficiency
• Build user-facing backend features to optimize performance and reliability, enhancing user experience
• Elevate BTO Oncology’s backend systems, including the test order record database, third-party integrations, test scheduling and reports management software, and distributed systems architecture, to ensure they meet the highest standards
• Foster a knowledge sharing culture within the team, contributing to the growth and development of colleagues through mentorship and collaborative learning
• Demonstrate a creative and out-of-the-box mindset, offering innovative solutions and approaches to complex technical challenges
• Prioritize quality by writing comprehensive unit / integration / end-to-end tests and ensuring superior test coverage across all components and modules. Highly skilled in writing technical documentation and validation reports that assure correct functionality of medical informatics systems
• Demonstrate a strong sense of ownership and take responsibility for end-to-end project delivery. The ideal candidate will thrive in an environment where they have the autonomy to make informed decisions and take the initiative to drive projects forward
• Collaborate cross-functionally, actively seeking input from team members and fostering a positive and inclusive work environment

• Suite of benefit plans
• Paid Medical, Pregnancy, Parental and Family Leaves
• Retirement savings program with Company contribution
• Generous equity package
• Free daily on-site lunches provided from top eateries
• Latest and greatest hardware (laptop, lab equipment, facilities)
• Free on-site EV charging (compatible with all EVs, including Tesla!)
• Working with a team of ‘rockstars’ who bring out the best in everyone
• The ability to indirectly or directly change the lives of hundreds of thousand patients
• Open, transparent culture that includes weekly Town Hall meetings

Total funding: $43.3m

BillionToOne is a precision diagnostics company. Its proprietary molecular counting platform (Quantitative Counting Templates) accurately counts DNA molecules at the single-count level, which has the ability to significantly improve disease detection. While initially focused on prenatal screening and oncological liquid biopsies, the company’s QTC technology is highly scalable and has the ability to make vast improvements to a range of disease detection verticals.