Android Developer - Micro Business Department

5+ years of professional experience in Android development using Kotlin. Solid understanding and hands-on experience with clean architecture. Experience working with modular architecture and large-scale projects. Strong knowledge of Kotlin Coroutines and structured concurrency for async operations. Strong knowledge of Android networking (REST APIs, authentication, WebSocket). Experience with real-time systems and bidirectional communication. Experience with ProGuard/R8 configuration and SDK obfuscation strategies. Understanding of binary compatibility and semantic versioning for public APIs. Experience managing transitive dependencies and resolving version conflicts. Strong debugging skills and problem-solving abilities. Excellent communication and collaboration skills. Security Requirements: Experience implementing certificate pinning (OkHttp CertificatePinner, Network Security Config). Knowledge of end-to-end encryption implementation patterns. Experience with secure local storage (EncryptedSharedPreferences, Android Keystore). Understanding of secure token management and session handling. Familiarity with secure logging practices (preventing sensitive data leakage). Knowledge of input validation and sanitization techniques.