BillionToOne · 6 months ago
Senior Software Engineer, Frontend
Menlo Park, CA
Full-time
Onsite
Senior Level
$194K/yr - $214K/yr
5+ years expBillionToOne is a next-generation molecular diagnostics company dedicated to developing powerful and accurate diagnostic tests that are accessible to all. The Senior Software Engineer, Frontend will work in collaborative teams to enhance digital experiences for clinicians and patients while driving innovation in software engineering.
BiotechnologyGeneticsHealth DiagnosticsMedical
Responsibilities
Collaborate with talented engineers to design and develop our backend services, data processing pipelines, and interfaces, driving innovation and efficiency
Build user-facing frontend features to optimize performance and reliability, enhancing overall user experience
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
Qualification
Required
5+ years of professional software development experience with a proven track record of delivering complex projects and adhering to best practices
Expertise in frontend engineering using modern libraries like Typescript, React, and HTMX
Familiarity with modern AI-driven development practices and tools
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
Excited about working in-person with our team in Menlo Park
Preferred
Experience in healthcare-related software or a passion for improving healthcare systems
Familiarity with healthcare data standards, such as FHIR and HL7
Experience leveraging AI-assisted coding and debugging tools
Experience building AI agents, fine-tuning machine learning models, or deploying LLM-based applications
Benefits
Multiple medical benefit options; employee premiums paid 100% of select plans, dependents covered at 80%
Extremely generous Family Bonding Leave for new parents (16 weeks, paid at 100%)
Retirement savings program including a 4% Company match
Free daily on-site lunches provided from top eateries
Latest and greatest hardware (laptop, lab equipment, facilities)
A variety of perks on campus (state of the art gym, restaurant)
Free on-site EV charging (compatible with all EVs, including Tesla)
Company
BillionToOne
BillionToOne is a precision diagnostics company that focuses on genetic testing for disease detection.
501-1000 employees
H1B Sponsorship
BillionToOne has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (10)
2024 (6)
2023 (2)
2022 (2)
2021 (1)
2020 (2)
Funding
Current Stage
Public CompanyTotal Funding
$425.9MKey Investors
Premji InvestBridge BankHummingbird Ventures
2025-11-06IPO
2024-06-21Series D· $130M
2022-12-15Series C· $48.5M
Leadership Team
J
Jean Hayden
VP of Operations and Chief of Staff to the CEO
Oguzhan Atay
Co-founder and CEO
Recent News
Norwest
2025-12-31
Company data provided by crunchbase