Devender Singh

I’m a Mobile App Developer with 3+ years building production cross-platform apps in Flutter and React Native. I’ve shipped complex features end-to-end—on-device ML inference, native BLE plugins, multi-flavor build pipelines, real-time GPS tracking, and full HRMS platforms—across healthcare, hospitality, HR, and utility use cases.

I enjoy designing reliable mobile systems with clean architecture and practical performance: Riverpod-based reactive flows, offline-first syncing, battery-aware BLE pairing, secure token handling, and OTA delivery that bypasses store cycles. From face-recognition attendance that works offline to HR attendance validation with location/WiFi proximity checks, I build apps that feel dependable in real-world constraints like low/no signal and underground environments.