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Senior Full Stack Engineer- Future Openings
Remote Full Stack Engineering role with clear candidate location fit.
PostedJul 15, 2026
Eligible countriesWorldwide
Seniority signalSenior
Work settingRemote
Accepted candidate locations
Worldwide
Role overview
Senior Full Stack Engineer- Future Openings
Requirements and responsibilities
Readable role content extracted into sections for faster review.
Product & Feature Development
- Own end-to-end implementation of product features spanning mobile (React Native / Expo), web (Next.js App Router), and backend services (NestJS / Node.js)
- Collaborate closely with product and design to translate complex health concepts into clear, usable experiences
- Drive technical decisions that balance speed, quality, and long-term maintainability
Frontend (Mobile & Web)
- Build and maintain shared UI and interaction patterns using Tamagui across mobile and web
- Implement mobile experiences using React Native (Expo), expo-router, TanStack Query, and offline/background sync patterns
- Build web experiences using Next.js (App Router) and React
- Integrate payments using Stripe.js and react-stripe-js
- Integrate frontend applications with custom authentication hooks backed by Firebase and backend identity services
- Consume and evolve REST APIs
- Implement analytics (PostHog), error tracking (Sentry), and accessibility best practices
- Write and maintain frontend tests using Jest, Vitest, React Testing Library, Playwright, and Detox as appropriate
Backend & APIs
- Design and implement backend services using NestJS (v11) and TypeScript
- Build secure, well-validated REST APIs using zod, class-validator, and OpenAPI
- Implement authentication and authorization using Google Identity JWT validation and role-based access control
- Model relational data using Prisma and Postgres (Cloud SQL)
- Implement async and background workflows using Google Cloud Tasks
- Integrate with external services such as OCR, scheduling APIs, and third-party data sources
- Ensure observability through structured logging, metrics, and Sentry
- Write unit and integration tests using Jest
Collaboration & Technical Leadership
- Act as a senior individual contributor, setting quality bars through code, reviews, and architectural decisions
- Partner closely with infrastructure and DevOps engineers to ensure reliable deployments
- Identify opportunities to simplify systems and reduce operational overhead
- Contribute to evolving engineering standards, patterns, and best practices
- Mentor mid-level engineers as the team grows
Required Qualifications
- 6+ years of professional software engineering experience
- Strong experience across frontend and backend development
- Production experience with React (web and/or React Native)
- Strong experience with Node.js and TypeScript
- Experience designing and consuming REST APIs
- Solid understanding of relational data modeling and ORMs
- Strong grasp of authentication, authorization, and security fundamentals
- Comfort working in small teams with high ownership and autonomy
- Ability to lead or follow as the moment calls for
- Familiarity with design patterns of distributed systems
Preferred / Nice-to-Have
- Hands-on experience with React Native (Expo)
- Production experience with NestJS
- Familiarity with Google Cloud Platform
- Experience in healthcare, wellness, or other regulated domains
- Experience implementing offline-first or background processing features
- Strong accessibility and UX quality sensibilities
What Success Looks Like (First 6–12 Months)
- Ships meaningful product features end-to-end across mobile, web, and backend
- Improves consistency and quality across shared frontend patterns
- Strengthens API design, validation, and error handling
- Reduces friction between frontend and backend integration
- Raise the overall engineering bar through thoughtful execution and mentorship
- Measure and utilize product metrics to drive real customer value
What We Offer
- 100% employer-paid medical, vision, and dental insurance (multiple plans available).
- 100% employer-paid life insurance, short-term, and long-term disability insurance.
- Employer-sponsored HSA contributions for HDHP medical plans
- Additional HSA and FSA spending account plans for employees
- 401(k) with a 5% company match.
- Generous PTO and holiday schedule.
- Company-issued technology and work-from-home stipend.
- A chance to shape a product, and a company, from the ground up.
- The opportunity to work at the forefront of health and longevity science with a team of world-class professionals dedicated to precision, mastery, and excellence.
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Location eligibility
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