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BillionToOne is a publicly traded genomics company transforming prenatal and cancer diagnostics. We're seeking an exceptional Lead UX Designer to own the end-to-end experience strategy and execution for Unity, our prenatal diagnostic platform.
You'll lead design from strategic insights through final production, translating complex molecular diagnostics into seamless, trustworthy experiences for clinicians, patients, and operational teams. This role sits at the intersection of cutting-edge genomics and human-centered design, requiring systems thinking across an interconnected healthcare ecosystem spanning lab processes, electronic health records, provider networks, and patient touchpoints.
Key responsibilities include owning the complete UX vision and strategy for Unity's patient and provider platforms, partnering with product leadership to shape roadmaps and priorities, and applying systems thinking to simplify complex relationships between stakeholders and data systems. You'll lead the complete design process from discovery and research through wireframing, prototyping, user testing, and production-ready deliverables. You'll create and maintain high-quality design artifacts including user flows, journey maps, wireframes, prototypes, and design system components. You'll own in-product microcopy and content strategy, drive the evolution of Unity's design system, and ensure accessibility, regulatory compliance, and ethical considerations are integrated into every design decision.
You'll oversee and mentor junior designers and UX contractors, build a culture of design excellence and user advocacy, partner with engineers to ensure experiential quality, and present design decisions to stakeholders across product, clinical, and executive leadership. You'll collaborate with product managers, engineers, clinicians, and genetic counseling teams to align design work with organizational goals.
Required qualifications: 7–10 years of professional experience in UX, product design, or service design; 3+ years in leadership roles with demonstrated ability to own design strategy and guide team members; proven track record designing in healthcare, biotech, or similarly complex regulated environments.
This is a hybrid position requiring 2–3 days per week at our Menlo Park facilities.
