Lead UX Designer

About the role

BillionToOne is looking for a talented Lead UX Designer to guide the user experience strategy for our prenatal diagnostic platform, Unity. This position merges advanced genomics with user-centered design to create trustworthy experiences for clinicians, patients, and operational teams. You will play a crucial role in transforming complex molecular diagnostics into intuitive digital solutions.

Key facts

What you'll do

• Develop and oversee the complete UX vision and strategy for Unity, ensuring alignment from research to implementation.
• Collaborate with product leadership to shape project roadmaps and prioritize user needs alongside technical and business objectives.
• Use systems thinking to clarify complex interactions among patients, providers, lab processes, and data systems.
• Create user experiences that demystify scientific concepts and foster trust.
• Translate product strategies into actionable design initiatives that enhance user journeys within clinical workflows.
• Lead the design process from initial research through wireframing, prototyping, user testing, and final deliverables.
• Produce and maintain high-quality design documentation, including user flows, journey maps, wireframes, and prototypes.
• Manage in-product content and microcopy to ensure clarity and build user confidence.
• Evolve Unity's design system in collaboration with branding and marketing teams to ensure consistency and scalability.
• Integrate accessibility and regulatory considerations into every design decision.
• Conduct user research to gather insights that inform product and design strategies.
• Advocate for evidence-based design practices grounded in thorough user research.
• Synthesize feedback from various stakeholders to identify design opportunities and unmet needs.
• Promote the user perspective in discussions with cross-functional teams, balancing clinical, technical, and business needs.
• Mentor junior designers and UX contractors, fostering a culture of design excellence and user advocacy.
• Collaborate with engineers to ensure that the final product aligns with design intent and quality standards.
• Present and justify design choices to stakeholders across different levels of the organization.
• Identify and pursue opportunities independently while ensuring strategic alignment across teams.

Requirements

• 7-10 years of experience in UX, product design, or service design.
• At least 3 years in leadership roles with a proven ability to guide design strategy and mentor team members.
• Demonstrated experience in designing for healthcare, biotech, or similarly regulated industries.
• A strong portfolio showcasing systems-level thinking and user-centered problem-solving from research to execution.
• Experience in both B2B and B2C healthcare product environments is preferred.
• Familiarity with AI-driven product experiences is a plus.
• Proven ability to collaborate with product management on prioritization and phased delivery.
• Proficient in design and prototyping tools such as Figma, Sketch, or Miro.
• Strong knowledge of user research methods, from generative research to usability testing.
• Expertise in information architecture, interaction design, and UX best practices.
• Understanding of accessibility standards (WCAG) and healthcare regulations (HIPAA, FDA).
• Experience in creating and maintaining design systems at scale.

Benefits And Perks

• Work alongside a dedicated and talented team committed to improving patient outcomes through innovative diagnostics.
• Open and transparent culture with regular Town Hall meetings.
• Opportunity to impact the lives of numerous patients directly or indirectly.
• Multiple health insurance options with full coverage for select plans and up to 80% for dependents.
• Generous Family Bonding Leave (16 weeks, fully paid) for eligible employees.
• Supplemental fertility benefits available.
• Retirement savings plan with a 4% company match.
• Increased paid time off based on tenure.
• Access to the latest hardware and lab equipment.
• Complimentary daily lunches from top local eateries.
• On-campus amenities including a gym and restaurant.
• Free on-site EV charging for all electric vehicles.

For this position, the total compensation package is $317,881 annually, which includes a base salary range of $179,521 to $211,201, depending on experience and chosen salary/equity options.

BillionToOne is an equal opportunity employer. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.

Ready to help us change the world, one molecule at a time? Learn more at billiontoone.com.