Company Description LVJ Soft is committed to delivering tailored solutions that drive efficiency and innovation. The company fosters a collaborative atmosphere to create impactful digital transformation strategies for businesses.
What you’ll do:Design, build, and maintain React Native apps for i OS & Android Integrate mobile apps with BLE devices (scan, connect, pair, GATT services) Collaborate closely with embedded/firmware teams (ESP32, Nordic n RF52/n RF53) Manage app releases to App Store & Google Play Optimize performance, battery usage, and BLE reliability Contribute to architecture, code quality, and cross-team system design
Required Skills & Experience
Mobile Development
6+ years of professional mobile development experience4+ years of React Native in production environments Proven experience shipping and maintaining i OS & Android apps Strong understanding of mobile lifecycle, background tasks, permissions, and OS limitations Experience with state management tools (Redux, Zustand, Mob X)
BLE & Embedded
Hands-on experience implementing BLE communication in mobile apps Solid knowledge of BLE concepts (scanning, pairing, bonding, MTU, connection intervals) Experience working with ESP32, Nordic n RF52/n RF53, or similar MCUsFamiliarity with GATT services, characteristics, and custom BLE protocols Experience debugging BLE issues using tools like n RF Connect
Integration & Collaboration
Experience integrating mobile apps with cloud backends (AWS is a plus) Strong understanding of JSON-based APIs, data handling, and error management Comfortable working cross-functionally with mobile, backend, and firmware teams
Nice to Have:
OTA firmware updates Native i OS (Swift) or Android (Kotlin) RTOS / IoT platform experience BLE security & power optimization knowledge