Senior React Native Developer (Remote)

Position: Senior React Native Developer (4- 7 years)Location: Remote (Company in Mumbai)Company: Big Rattle Technologies Private LimitedImmediate Joiners only.Summary:We're looking for a seasoned React Native developer who has shipped production-grade mobile apps on both iOS and Android — ideally in the high-traffic, high-stakes world of e-commerce. You'll own the mobile experience end-to-end: architecture, performance, and flawless UX across devices.Note: We are looking for a senior expert who has delivered multiple apps that are built from scratch and hosted on Apple Store/ Play Store i.e. e2e lifecycle.KEY RESPONSIBILITIESDesign and build scalable React Native apps for both iOS and Android from scratch to App Store / Play Store deployment.Architect complex e-commerce flows — product catalogues, cart, checkout, payment gateway integration, and order tracking.Optimize app performance: reduce TTI, maintain smooth 60fps animations, and manage memory on low-end devices.Integrate REST and GraphQL APIs; manage state with Redux Toolkit, Zustand, or React Query.Implement push notifications, deep linking, in-app navigation, and offline-first strategies.Write clean, well-tested code; maintain CI/CD pipelines using Fastlane, GitHub Actions, or Bitrise.Collaborate with designers, backend engineers, and product managers in Agile sprints.Conduct code reviews and mentor junior mobile developers.Required Skills:Core Mobile▸ React Native CLI & Expo▸ TypeScript▸ React Navigation v6+▸ iOS (Swift basics) & Android (Kotlin basics) ▸ Xcode & Android StudioE-commerce & Integrations▸ Product / Cart / Checkout flows▸ Razorpay, Stripe, PayPal SDKs▸ Wishlist, search UX, filters▸ Order tracking & delivery status▸ Push notifications & deep linkingState & Data▸ Redux Toolkit / Zustand▸ React Query / SWR▸ REST & GraphQL APIs▸ AsyncStorage / MMKV▸ Firebase Realtime DB / FirestoreDevOps & Tooling▸ Fastlane & GitHub Actions / Bitrise▸ Jest (unit) & Detox (E2E)▸ Firebase Crashlytics & Sentry▸ Flipper / Reactotron▸ App Store & Play Store deploymentsNice to Have skills: New Architecture · RN Web · AR try-on · RTL support · Shopify SDK · WCAG · Maps SDKReact Native New Architecture (JSI / Fabric / TurboModules)React Native Web or monorepo setups (Nx, Turborepo)AR product try-on experiences (ARKit / ARCore)Shopify Storefront API or WooCommerce SDK experienceAccessibility (WCAG mobile) implementationLive order-tracking maps (Google Maps / Mapbox)Required Qualifications:Bachelor’s degree in Computer Science, Engineering, or a related technical field.Why should you join Big Rattle?Big Rattle Technologies specializes in AI/ ML Products and Solutions as well as Mobile and Web Application Development. Our clients include Fortune 500 companies. Over the past 13 years, we have delivered multiple projects for international and Indian clients from various industries like FMCG, Banking and Finance, Automobiles, Ecommerce, etc. We also specialise in Product Development for our clients.Big Rattle Technologies Private Limited is ISO 27001:2022 certified and CyberGRX certified.What We Offer:Opportunity to work on diverse projects for Fortune 500 clients.Competitive salary and performance-based growth.Dynamic, collaborative, and growth-oriented work environment.Direct impact on product quality and client satisfaction.5-day hybrid work week.Certification reimbursement.Healthcare coverage.