Senior Mobile App Developer (NFC) - Noke

Janus International Group•Atlanta, GA

About The Position

This role focuses on developing high-performance mobile applications that interact with smart locks using NFC, BLE, and cloud services, delivering seamless and secure user experiences. You will play a critical role in next-generation access solutions, enabling offline access, enhanced security, and improved customer interactions across our IoT ecosystem.

Requirements

3 years in mobile app development (Android and/or iOS)
3 years of strong hands-on experience with NFC frameworks (Android NFC APIs, Core NFC for iOS), Bluetooth Low Energy (BLE)
3 years of experience working with IoT devices or hardware-integrated applications
3 years of React Native or cross-platform frameworks

Responsibilities

Design, develop, and maintain Android (Kotlin) and/or iOS (Swift) applications
Build scalable, secure, and high-performance mobile solutions for smart lock access
Ensure consistent UI/UX across mobile platforms
Develop and implement NFC-based access workflows (tap-to-unlock, credential exchange)
Integrate NFC capabilities including Tag reading/writing, Secure credential storage and validation, Offline authentication flows
Optimize NFC performance across different device manufacturers
Implement hybrid access strategies using NFC + BLE fallback
Ensure reliable communication in low-connectivity or offline scenarios
Implement secure authentication methods (token-based, encrypted storage)
Ensure compliance with security standards for mobile and IoT ecosystems
Integrate with REST APIs, cloud services (AWS/GCP), and authentication systems
Collaborate on API design for mobile-first interactions
Ensure efficient syncing of device states, logs, and access permissions