Learn how to design production-ready Android systems with scalable architecture, offline-first data, networking, synchronization, security, performance, and real-world examples. Introduction Modern Android development is no longer only about building screens and connecting APIs. As an Android application grows, engineers need to think about: Scalability Reliability Offline support Data synchronization Networking Caching Security Performance Background processing Real-time communication Modularization Maintainability A production Android system is a combination of the mobile client, backend…