Sadgi Gupta

I’m a Senior React Native Developer with ~5 years of building and shipping production cross-platform mobile apps end-to-end—from architecture and native-module design through App Store and Google Play release management. I deliver 7+ apps across eCommerce, fintech, trading, and social domains, with a strong focus on scalable engineering decisions. I go deep in TypeScript and modern JavaScript (ES6+), using React Native (hooks, navigation, native modules and bridging across iOS and Android) to build maintainable features. I’ve worked extensively with the React Native New Architecture (JSI, Fabric, Turbo Modules), Expo builds and OTA updates, and hands-on performance optimisation to keep apps fast and reliable. My approach to product engineering blends state management and API integration for real-time and complex workflows. I’ve implemented scalable state with Redux Toolkit, Redux Saga, Context API, MobX, and Zustand, and integrated REST, GraphQL, and real-time systems using WebSockets and SignalR—plus OAuth and third-party SDKs. I own technical decisions, run code reviews, and mentor junior engineers within Agile/Scrum teams. In my recent roles, I’ve handled critical production crashes, improved low-bandwidth rendering performance, maintained CI/CD pipelines, and earned recognition including the Above & Beyond Award for outstanding delivery.