Keyur Sondigara

I’m a Flutter Developer and Hybrid Mobile Application Developer with 3.5+ years of hands-on experience designing, building, and deploying production-ready Android & iOS applications using Flutter and Dart. I’m known for writing clean, modular, and well-documented code following MVVM architecture, MVVM + Clean Code principles, and secure-by-design patterns.

I bring strong proficiency across Flutter versions (null-safety, 2.x–3.x) and state management using BLoC (preferred), Provider, and Riverpod. I integrate REST APIs with dio, handle JSON/XML serialization/deserialization, and build responsive UIs with Material/Cupertino design systems using Rows, Columns, Stack, and custom widgets.

In my freelance work (Self-Employed, Remote), I delivered end-to-end hybrid mobile apps—from requirements to Play Store and App Store deployment. I built apps like BTC Boost (real-time mining tracker using Socket.IO + REST APIs, Firebase Auth/Firestore, and SQFLite offline persistence) and focused on cryptographic session management with flutter_secure_storage and Firebase security rules.

At Tagline Infotech, I improved performance and reliability by implementing BLoC/Provider and optimizing API response parsing—reducing loading time by 40%—and increasing stability by 35% through unit testing and widget testing. I also managed full release lifecycles, collaborated in Agile/Scrum teams, and led technical training for 5+ junior developers.