Sr. Full-Stack Engineer

Healthcare is broken at the first step: patients can't find the right care, understand what it costs, or access the medications they need. Mochi Health is fixing this.

We're building an AI-driven marketplace that makes healthcare discoverable—connecting patients to the right providers, transparent pharmacy pricing, and affordable medications. Over the past few years, we've grown rapidly by combining clinical expertise with technology that actually works for real people, not just hospital systems.

Our platform does what legacy healthcare can't: it gives patients transparent pricing before they pay, personalized medication management that follows them across providers, and long-term access to their own medical records. We're proving that healthcare can be more affordable, more human, and far more intuitive than what exists today.

Join a team that's rebuilding healthcare from the patient up. At Mochi Health, you'll work alongside people who value bold thinking, inclusive collaboration, and getting meaningful work into the world. If you want to do the most impactful work of your career, this is where to do it.

Sr. Full-Stack Engineer

Location: San Francisco, CA (5 days/week onsite)

Salary Band: $230,000 - $280,000 (Open to Staff leveling at $280-330K)

About The Role At Mochi, our engineering team operates with exceptional leverage. We believe in high talent density, where a focused, pragmatic team powers a profitable, nine-figure ARR healthcare platform serving hundreds of thousands of patients. We are looking for an Engineering Manager to help us scale, align, and unblock this organization.

Mochi has already helped patients lose over 5 million pounds through metabolic care, and we are now rapidly expanding into the frontiers of preventative healthcare. To support this growth, we are actively leveling up our engineering maturity—pairing our ambitious, early-career engineers with incoming Senior and Staff-level talent to build our next generation of clinical systems.

At Mochi, engineering is deeply integrated with our clinical and operational teams. We do not operate in silos. We need an Engineering Manager who is a true collaborative partner: someone who excels at mentoring junior developers, recruiting senior talent, maintaining a culture of high technical craft, and working directly with clinical leadership to co-design solutions for massive healthcare challenges. If you are a deeply technical leader who meets engineers where they are and cares profoundly about patient outcomes, this is the role.

What You'll Do

• Build High-Density Healthcare Interfaces: You will build the complex tools our clinical team relies on to treat patients safely. You will architect dynamic, multi-step medical intake engines, high-density provider charting dashboards, and patient-facing apps that handle sensitive PHI with perfect state synchronization.
• Bridge Clinical & Client: Connect our complex backend medication ordering and fulfillment pipelines to intuitive, highly responsive frontend interfaces. You will translate dense healthcare requirements into seamless digital experiences.
• Champion the User Experience: You don't just implement specifications; you deeply care about how patients and providers experience Mochi. You sweat the details of the UI and possess the strong product sense required to make pragmatic, high-quality design decisions on the fly that measurably improve patient outcomes.
• Own the Full Lifecycle: True full-stack means owning the delivery. You will design the database schema, write the API, build the React interface, deploy the service, and own both backend reliability and client-side error tracking in production.
• Build Agentic Workflows: Mochi is an AI-first engineering org. You will not only utilize frontier agentic models to accelerate your own development, but you will also integrate AI capabilities directly into our product to automate clinical operations and scale our provider workflows.
• Raise the Engineering Bar: Own key architectural decisions across the stack, systematically upgrade legacy code, and elevate the engineers around you through rigorous code review, testing practices, and technical standards.

Who You Are

• You have operated high-stakes systems. You have 5-7+ years of full-stack engineering experience. You've built and operated production systems that handle real complexity, crossing the boundary between complex backend domain logic and polished frontend user experiences.
• You master client-side state and performance. You know how to manage complex state across a large frontend application. You