SportyLabs

Role

We are looking for strong react-native, reactjs and next.js (app router) developer. Own our mobile app from scratch and contribute to our Next.js web app. Ship fast, sweat the details, and collaborate closely with design and backend.

What you’ll do

• Build the RN app end-to-end: navigation, theming, auth, API, push, releases.
• Contribute to web: Next.js App Router, RSC, performance, SEO.
• Integrate back-end + PostgreSQL; add analytics, error tracking, CI/CD.
• Maintain a shared design system; write clean, tested TypeScript.

Must-haves

• 4+ yrs React; 2+ yrs React Native with App Store/Play releases.
• Strong React DOM and Next.js (13+; ideally 15 App Router).
• TypeScript, state/data (TanStack Query/Redux), Node.js APIs, PostgreSQL.
• Product sense + visual polish; clear communication and ownership.

We are looking for strong middle react-native developer who will be able to launch app from scratch. We provide all the necessary back-end api ready to use and design. You will have to collaborate with back-end developer and designer.

• Build the app UI end-to-end: Implement responsive, accessible, and well-themed components/screens from Figma; create a reusable component library.
• Connect APIs: Integrate REST endpoints; handle network/cache layers, errors, retries, optimistic updates.
• Implement authentication: Email/password, OAuth/SSO, and token management (JWT/refresh), secure storage, guarded routes, and session lifecycle.
• State & data: Select and implement state/data strategy (e.g., React Query + Redux or Zustand) with clear separation of concerns.
• Quality & performance: Add unit/integration tests (Jest/React Native Testing Library/Detox), profiling, performance budgets, and crash/analytics instrumentation.
• Collaboration: Work daily with a back-end engineer on API contracts (OpenAPI/GraphQL schemas) and a designer on Figma handoffs; give and receive code reviews.
• Documentation: Maintain concise technical docs, API usage guides, and runbooks.