androidengineers.Book a session LEARN WITH A CLEAR DIRECTION
Design scalable, reliable, and high-performance Android apps—from OS internals and concurrency to modular architecture, offline sync, performance, security, and real-world case studies.
A complete 30-module roadmap that moves from Android OS architecture and app lifecycle to modern patterns (MVVM/MVI, Clean Architecture), robust networking and caching, offline-first sync, performance & battery optimization, modularization and CI/CD, platform services, Compose system design, and production-grade security. Finish with case studies (messaging, streaming, ride-share, e-commerce) and interview frameworks to reason about trade-offs like a staff engineer.
THE CURRICULUM
177 lessons across 30 modules. Open a module to explore its lessons and practical work.
Android OS layers, processes, memory, IPC, Zygote, and ART vs Dalvik.
Activities, Fragments, Services, BroadcastReceivers, ContentProviders, and intents.
Main thread rules, Handler/Looper, coroutines, Rx/Flow, executors, WorkManager.
MVC, MVP, MVVM, MVI, UDF, repositories, use cases, and DI trade-offs.
ViewModel, LiveData vs StateFlow, Room, Navigation, Paging, DataStore, App Startup.
SSOT, state hoisting, UDF, sealed state, process death, and Compose state.
REST design, Retrofit/OkHttp tuning, GraphQL, WebSockets, gRPC, TLS/pinning.
Memory/Disk caches, HTTP caching headers, Room as cache, invalidation, offline-first.
Delta vs full sync, conflict resolution, real-time sync, WorkManager scheduling, consistency models.
Leak patterns, bitmaps, pooling, churn reduction, profiling with LeakCanary/Profiler.
Startup (cold/warm/hot), lazy init, layout & RecyclerView tuning, 60fps rendering, systrace.
Doze/App Standby, batching, compression, image formats, background work strategy.
Feature vs library modules, dynamic delivery, dependency graph, build times, multi-module nav.
Microservices integration, multi-tenant concerns, feature flags, config & dynamic content.
Package structures, SOLID, GOF patterns, codegen (APT/KSP), separation of concerns.
Advanced Room (converters, migrations, FTS, views), SQLite tuning, multi-DB strategies.
Encryption, Keystore, biometrics, Play Integrity, obfuscation, secure coding, OAuth/OIDC.
ExoPlayer, CameraX, image pipelines, custom views/canvas, rendering performance, AR basics.
Compose architecture, recomposition, side-effects, custom layouts/modifiers, performance.
Test pyramid, doubles, JUnit/Mockito, Espresso, Robolectric, screenshot tests, DI for tests.
Infinite scroll, interactions, realtime updates, image/video feed optimization.
Queues, E2E encryption, multi-device sync, offline storage, notifications.
Realtime location, maps rendering, routing, matching, geofencing, battery-aware updates.
Catalog/search, cart, payments, order tracking, inventory sync, analytics.
Notifications, widgets, accessibility, sharesheet, shortcuts, PiP.
KMM, Flutter, React Native—shared logic, native bridges, trade-offs.
GitHub Actions/Jenkins, automated tests, beta distribution, versioning, rollout.
Crashlytics/ANR, performance traces, custom analytics, funnels, remote config.
Upload pipeline, feed generation, stories, realtime interactions, DM & search.
Tweets, timelines, hashtags/trends, notifications; interview approach & trade-offs.