Umesh S.

1️⃣ Quick intro ⚡ ✅ Senior Flutter developer with 6+ years building cross-platform mobile apps for iOS, Android, and Web. ✅ Shipped a Flutter digital wallet that scaled from 0 to 500,000+ active users with zero security breaches and a 4.5-star rating. ✅ Trusted to build apps for products backed by Reddit's co-founder, top Silicon Valley VCs, and a Nobel Prize-winning economist. ✅ 5-star rated on long-term Flutter contracts, with clients calling my work "Highly recommended. A++". ✅ Led and mentored development teams, including a team of 10+ engineers. ✅ A big fan of clean, readable code: reactive programming, composable UI, TDD, immutable data, single source of truth, and clean architecture. 2️⃣ Flutter and Dart 🎯 ✅ Expert in the Dart language, the Flutter framework, design patterns, and native code on Android and iOS. ✅ State management and architecture: Bloc, Riverpod, Provider, get_it, clean architecture. ✅ Beautiful, responsive, pixel-perfect UI and smooth animations at 60fps. ✅ Networking and data: Dio, Retrofit, REST APIs, GraphQL, WebSockets, Socket IO. ✅ Firebase suite: Auth, Firestore, Storage, real-time database, Cloud Functions, push notifications, Crashlytics, analytics. ✅ Offline-first apps with local persistence and reliable sync. ✅ Payments and FinTech: Stripe, payment gateways, secure storage, encryption. ✅ Background services, isolates, sensors, in-app purchase, social media integration. ✅ Location tracking, geolocation, and map integration with Google Maps. ✅ Media processing: audio and video editing with FFmpeg. ✅ TDD with unit and widget testing (Mockito). ✅ CI and CD with Fastlane, shipping to the App Store and Google Play. ✅ Multiple Flutter apps built from scratch to the app stores. 3️⃣ Selected work 🚀 ✅ Moru Digital Wallet: Flutter FinTech app, 500K+ users, offline-first, zero breaches, 4.5 stars. ✅ Transform The Day: AI marketing app with OpenAI content generation and Instagram scheduling. ✅ SAWA: community fintech app backed by top VCs and a Nobel-laureate board, with real-time chat and lending. ✅ Hye-Connect: social media app with GraphQL real-time chat and social engagement. ✅ Location-based review app for movies, hotels, and restaurants with geolocation and interactive maps. 4️⃣ Backend when you need it 🔧 ✅ I also build the backend behind the app with Node, NestJS, Express, PostgreSQL, MongoDB, Redis, and AWS. ✅ That means I can own your mobile project end to end, so you are never stuck waiting on someone else's API. 5️⃣ Why hire me ❓ ✅ A curious, honest, and self-motivated engineer who communicates clearly and gives you regular updates. ✅ Experience across FinTech, Social Media, AI, Marketing, and Media apps, with proven scale to 500K+ users. ✅ I deliver fast, robust, well-architected code that is clean, testable, and built to scale. ✅ I think like a product owner, not just a coder, and put myself in your shoes to build something that actually succeeds. ✅ Seems like the developer you were looking for? Let's connect. I am happy to exchange ideas, share experience, and give you a free feasibility check on your project.