Senior Full Stack Engineer

About the role

Join the dynamic journey at Vynca, where we're passionate about transforming care for individuals with complex needs.

We’re more than just a team; we're a close-knit community. Our shared commitment to caring for each other and those we serve is what sets us apart. Guided by our unwavering core values: Excellence, Compassion, Curiosity, and Integrity, we forge paths of success together. Join us in this transformative movement where you can contribute to making a profound difference every day.

At Vynca, our mission is to provide comprehensive care for more quality days at home.

ABOUT THE JOB

We are looking for a Senior Full Stack Engineer with 5+ years of experience building production-grade applications across the stack. You will work on our Vynca Clinical solution, collaborating closely with design, product, and engineering teammates to deliver performant, secure, and user-friendly software that improves the delivery of high-touch care.

You’ll own features end-to-end—from backend APIs to frontend UI—and work across a modern stack that includes React, TypeScript, FastAPI, and GraphQL. We are looking for someone excited by clean code, thoughtful design, and a strong sense of ownership in building product-focused software.

This is a hybrid position based in San Mateo, CA, with an expectation of working from the office 2 days per week.

WHAT YOU’LL DO

BACKEND (PYTHON + FASTAPI)

- Design and implement GraphQL and RESTful APIs using FastAPI and Strawberry GraphQL.

- Build and maintain backend services to support UI features, authentication flows, and patient/provider workflows.

- Model data with SQLAlchemy and manage schema changes with Alembic.

- Integrate with third-party APIs (e.g., HealthGorilla, Salesforce, PVerify, Google APIs, Slack).

- Write unit and integration tests using Pytest and testcontainers.

- Maintain API security, access control, and logging practices.

- Event driven architecture, CQRS design patterns, HAPI FHIR Server, Full Text/Fuzzy Search & Semantic Search.

FRONTEND (REACT + TYPESCRIPT)

- Build and maintain features in a React + TypeScript codebase using functional components and hooks.

- Implement responsive UI components using Material UI (MUI) and Emotion for styling.

- Manage client-side state using Redux Toolkit, Formik, and Yup.

- Integrate with backend services via GraphQL (Apollo Client) and REST APIs (Axios).

- Handle authentication flows with Auth0.

- Build protected and dynamic routes with react-router-dom.

- Write unit and integration tests using tools like Vitest, React Testing Library, Playwright and MSW.

- Implement features like file uploads, PDF generation (pdf-lib), digital signature capture, and custom surveys.

- Use LaunchDarkly for feature flagging and Vite for builds and local dev.