Senior Mobile Application Developer (NFC)

Think Consulting; Atlanta (GA); On-site; USD 120,000 - 160,000; Full time

Job summary

Think Consulting is seeking a Senior Mobile Application Developer to design, build, and enhance mobile apps that connect with smart devices using NFC, BLE, and cloud services. You will own end-to-end mobile development for Android and/or iOS, focusing on secure, scalable, and offline-capable solutions for access-control products.

The role requires hands-on experience with hardware-integrated apps, REST APIs, and cloud platforms (AWS/GCP), plus a strong emphasis on performance, security, and user

Qualifications

• 3+ years of mobile app development on Android (Kotlin) and/or iOS (Swift).
• 3+ years with NFC technologies and frameworks (Android NFC APIs, Core NFC).
• 3+ years BLE experience.
• 3+ years IoT or hardware-integrated app development.
• Experience with React Native or cross-platform frameworks.
• Experience consuming REST APIs and cloud integrations.

Responsibilities

• Design, build, and maintain mobile apps for smart lock and access-control solutions.
• Ensure secure authentication and data protection in mobile apps.
• Integrate with REST APIs and cloud services (AWS/GCP).
• Collaborate with backend and hardware teams for device communication.
• Optimize performance and offline capabilities.

Skills

Kotlin

Swift

BLE

NFC

Android

iOS

React Native

REST APIs

Cloud AWS/GCP

App security

Job description

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