Dhaval K.

Senior React Native and Flutter developer for iOS and Android. I build, ship, and maintain apps for the long term, including apps that control hardware over Bluetooth and IoT. Top Rated Plus, 100% Job Success, 60 Upwork jobs. WHAT I DO • New apps and MVPs in React Native (Expo) or Flutter, from design to App Store and Google Play release • Rescue and release: upgrading or finishing stalled apps and getting them approved • Device-connected apps: Bluetooth LE, serial communication, and IoT platforms such as Tuya • Long-term maintenance: features, upgrades, and fixes on live apps • Backend and AI features when the app needs them: Node.js, Next.js, Firebase, PostgreSQL, AWS, OpenAI and Claude APIs RECENT WORK ON UPWORK • Android app controlling an automotive device over Bluetooth LE (React Native, Expo): built it, then maintained it for three years for the same client • Serial communication in React Native for a hardware product • Expo apps taken to final release on both stores • Water-chiller control app with Tuya device pairing and scheduling • Flutter mental-wellness app with backend work, for the same client since 2024 HOW I WORK Written scope with milestones, weekly builds you can install, daily updates, and documentation at handover. CALL TO ACTION Send me your app's store link or repo and what is blocking you, and I'll reply with a first assessment.