Senior Mobile App Developer (NFC) - Noke

Janus International; Atlanta (GA); On-site; USD 80,000 - 100,000; Full time

Job summary

Janus International in Atlanta, Georgia is seeking an experienced mobile application developer to create high-performance applications for smart locks. You will design and maintain Android and iOS solutions, ensuring secure user experiences and integrating IoT functionalities.

The ideal candidate has over 3 years of experience with mobile development, NFC frameworks, and IoT devices. This position offers a collaborative environment focused on next-generation access solutions.

Qualifications

• 3 years in mobile app development (Android and/or iOS).
• Strong hands-on experience with NFC frameworks and BLE.
• Experience working with IoT devices or hardware-integrated applications.

Responsibilities

• Design, develop, and maintain Android and/or iOS applications.
• Implement NFC-based access workflows.
• Integrate with REST APIs and cloud services.

Skills

Mobile app development (Android and/or iOS)

NFC frameworks

Bluetooth Low Energy (BLE)

IoT devices

React Native or cross-platform frameworks

Job description

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.

Responsibilities

• Mobile Application Development
• 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
• NFC & Device Interaction
• 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
• IoT & Connectivity
• Implement hybrid access strategies using NFC + BLE fallback
• Ensure reliable communication in low-connectivity or offline scenarios
• Security & Compliance
• Implement secure authentication methods (token-based, encrypted storage)
• Ensure compliance with security standards for mobile and IoT ecosystems
• Backend Integration
• 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

Qualifications

• 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 experience with React Native or cross-platform frameworks

Physical Demands

• Regularly required to sit, stand, and walk.
• Reasonable accommodation may be made to enable individuals with disabilities to perform the essential functions of the position.