Android Developer

Job Description: Senior Kotlin (Android) Developer Number of Resources: 2 Experience: 6-10+ years Location: Chennai Duration: 3 months

Required Technical Skills

1. Kotlin and Android Development
Strong proficiency in Kotlin, Java, and Android SDK. Hands-on experience with Android Jetpack components, including ViewModel, LiveData, Room, WorkManager, and Navigation. Strong understanding of Kotlin Coroutines and Flow. Experience with dependency injection using Hilt/Dagger. 2. API Integration and Communication Hands-on experience integrating REST APIs, JSON, HTTPS/TLS, authentication, and secure API communication. Experience with socket programming, TCP/IP, and WebSockets for real-time communication and device-to-server connectivity. 3. Database and Offline Capabilities Experience with local Android data storage using Room or equivalent technologies. Experience with offline-first applications, transaction synchronization, retry mechanisms, and transaction recovery. 4. Security Understanding of data encryption, certificate management, secure key exchange, JWT, OAuth 2.0, and application security. 5. Hardware and Device Integration Familiarity with hardware communication interfaces, including USB, Serial, Bluetooth, and vendor-specific SDKs. Knowledge of NFC, EMV card reading, ISO 14443, and contactless smart-card technologies is a strong advantage. 6. Development Tools and Support Familiarity with Git, CI/CD, Docker, application deployment, debugging, logging, and production support.

Preferred Domain Experience
Experience in any of the following domains will be highly advantageous: Automatic Fare Collection (AFC) Metro/Rail and Public Transport NCMC and EMV QR ticketing POS and payment processing Transit systems Note: The requirement is specifically for Kotlin/Android Developers. C#, .NET Core, ASP.NET Core, Oracle Database, and other backend-specific skills from the original JD are excluded.