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Overview
Our client is seeking a Senior Mobile Application Developer to build and enhance next-generation smart access solutions. This role is focused on developing mobile applications that communicate with connected devices using NFC, Bluetooth Low Energy (BLE), and cloud-based services.
The ideal candidate has strong mobile development experience, a background in hardware-integrated applications, and expertise building secure, highly available mobile solutions that function in both online and offline environments.
Key Responsibilities
Mobile Development
- Design, develop, and maintain high-performance Android (Kotlin) and/or iOS (Swift) applications.
- Build scalable, secure, and user-friendly mobile experiences for smart lock and access-control solutions.
- Ensure consistency in application architecture, performance, and user experience across platforms.
NFC & Smart Device Integration
- Develop NFC-enabled mobile capabilities including:
- Tap-to-unlock functionality
- Credential provisioning and exchange
- Secure credential storage and validation
- Offline authentication workflows
- Optimize NFC functionality across multiple device manufacturers and operating systems.
- Troubleshoot and improve device connectivity and performance.
IoT Connectivity
- Integrate mobile applications with connected IoT devices.
- Implement NFC and BLE communication strategies, including fallback mechanisms.
- Support reliable operation in low-connectivity and offline-use scenarios.
Security & Authentication
- Implement secure authentication and authorization mechanisms.
- Apply best practices for encryption, credential management, and secure storage.
- Ensure compliance with enterprise security standards.
Cloud & Backend Integration
- Integrate mobile applications with REST APIs and cloud services (AWS/GCP).
- Collaborate with backend engineers to design mobile-first APIs and workflows.
- Support synchronization of device status, activity logs, permissions, and user access controls.
Required Qualifications
- 3+ years of mobile application development experience using Android (Kotlin) and/or iOS (Swift).
- 3+ years of hands-on experience with NFC technologies and frameworks:
- Android NFC APIs
- Core NFC (iOS)
- 3+ years of experience with Bluetooth Low Energy (BLE).
- 3+ years of experience developing applications that integrate with IoT devices or physical hardware.
- Experience with React Native or other cross-platform mobile frameworks.
- Experience consuming REST APIs and integrating with cloud-based platforms.
- Strong understanding of mobile application architecture, performance optimization, and security best practices.
Preferred Experience
- Smart lock, access control, or physical security solutions
- IoT ecosystems and connected-device environments
- Offline-first mobile applications
- AWS or GCP cloud environments
- Mobile security and authentication platforms
What This Candidate Looks Like
- Senior mobile developer with Kotlin and/or Swift expertise
- Experience building NFC-enabled applications
- Strong BLE and IoT integration background
- Comfortable working directly with connected hardware devices
- Experience building secure mobile applications that interact with cloud services and real-world devices
Equal Opportunity Employer, including disability and protected veteran status