Senior Mobile Engineer React Native

Roles Responsibilities About KingoMart KingoMart is a B2B ecommerce marketplace connecting suppliers and business buyers Our platform today consists of a customer storefront Next js React TypeScript an internal admin panel React TypeScript and a FastAPI PostgreSQL backend that publishes a typed OpenAPI contract Everything userfacing is TypeScript and mobile will be too The role You will be our first and founding mobile engineer You own the mobile architecture end to end you will build and ship our customer storefront app for Android and iOS React Native Expo TypeScript and later a second app for our suppliers The monorepo typed API client and buildservice decisions Expo EAS are already in place you take them from skeleton to shipped product and you own every release that follows This is a highownership role you set the technical standards the release process and the quality bar that the whole mobile codebase will live with for years What you will do Build and ship the KingoMart storefront app catalog search cart checkout orders account to both the App Store and Google Play Own the mobile architecture navigation state management offline caching strategy deep linking and push notifications documented in ADRs Own release engineering EAS builds store submissions staged rollouts overtheair updates crash monitoring and rollback strategy Integrate with our FastAPI backend through the shared OpenAPIgenerated TypeScript client Establish testing practices unit component and endtoend and the CI checks that enforce them Later build the supplierpanel app on the foundations you laid shared design system auth and API layer Work alongside our web engineers React TypeScript code review flows both ways Desired Candidate Profile Experience 5 years of software engineering with 3 years of React Native in production and strong TypeScript Shipped and maintained at least two apps live in both the App Store and Play Store maintained through OS releases store policy changes and at least one major React Native upgrade or architecture migration Expo ecosystem EAS Build Submit Update config plugins development builds Continuous Native Generation Native literacy able to read and write basic Swift and Kotlin enough to debug a native crash write a config plugin or wrap a native SDK Navigation deep linking Expo Router or React Navigation universal links app links pushnotification routing State data clear judgment on server state vs client state e g TanStack Query a light client store and cart checkout state design Offline caching cachefirst browsing optimistic updates with rollback queued mutations with sync and conflict handling Push notifications FCM APNs end to end permission UX token lifecycle payload design all three app states Performance list virtualization image pipelines Hermes profiling startup time and rerender analysis on real devices Testing Jest React Native Testing Library E2E with Maestro or Detox a coherent view of what to test at which layer Release engineering staged rollouts OTA update policy and its storepolicy boundaries versioning crash monitoring Sentry or similar Security Keychain Keystore for tokens never AsyncStorage secure deeplink handling store privacy declarations Nice to have AI experience Familiarity with AIpowered applications LLM APIs e g OpenAI AIassisted features such as chat recommendations semantic search and prompt engineering Experience integrating AI services into mobile applications is a strong advantage Ecommerce or B2B app experience payment SDK integration Stripe Adyen or similar Monorepo experience Turborepo Nx or pnpm workspaces sharing code with React web apps Comfortable occasionally contributing to our React web codebases Next js storefront Vite admin Analytics and experimentation in mobile release cadences App Store Play Store review battle scars Accessibility VoiceOver TalkBack i18n RTL our storefront ships English French and Arabic Able to read Python well enough to follow a FastAPI endpoint React Native New Architecture migration experience Our stack context not requirements Storefront web Next js 16 React 19 TanStack Query Tailwind nextintl Admin panel Vite React TypeScript shadcn ui Backend FastAPI PostgreSQL OpenAPI contract with generated TypeScript clients Mobile yours Expo SDK 57 Expo Router pnpm Turborepo monorepo EAS