Duration: 44 weeksModules: 20Topics: 100+Content: 180+ hoursDifficulty: Beginner → Principal Engineer

Android Engineering — The World-Class Curriculum

This is the most comprehensive, production-focused Android curriculum on the internet. It covers every layer of a modern enterprise app — from the Kotlin language, through Compose and architecture, to the parts most curricula ignore: Gradle at scale, modularization, security hardening, CI/CD pipelines, observability, enterprise UX, and career progression.

✦Why this is different

Other courses stop at "how to build an app." This curriculum teaches you to ship, scale, and operate apps that serve millions of users. Every module is written with the patterns used at Google, Square, Airbnb, Meta, Cash App, and every serious Android engineering shop — not toy demos.

Why learn Android in 2026?

Android runs on 3+ billion active devices worldwide. With the rise of Kotlin Multiplatform, Compose Multiplatform, Wear OS, foldables, AI-powered on-device experiences, and Android XR, Android engineering is more relevant — and more rewarding — than ever.

Modern Android is also far more pleasant than it used to be. Java is gone. XML layouts are giving way to declarative Compose. Coroutines make async code readable. Hilt removes DI boilerplate. Baseline profiles slash cold start by 40%. This curriculum teaches you that modern stack from the ground up — and the enterprise engineering around it.

🎯

Production-focused

Every example mirrors patterns used in shipping enterprise apps — not toy demos.

🧠

Concept-first

You learn the model behind each tool so you can adapt when libraries change.

🏢

Enterprise-ready

Gradle at scale, modularization, security, CI/CD, observability — the whole operations stack.

🛠️

Hands-on projects

5 end-to-end apps reinforce architecture, networking, persistence, and publishing.

📈

Career-minded

Leveling, interview prep, system design, portfolio strategy, negotiation.

🌍

World-class UX

Accessibility, i18n, large-screen, foldables, motion — build for everyone.

How the curriculum is organized

The 20 modules are grouped into five phases. Each builds on the previous.

1. 01

   Phase 1 — Foundations (Modules 01-04)

   Kotlin mastery, Android platform, Jetpack Compose, architecture & design patterns. The mental models underneath everything else.

2. 02

   Phase 2 — Data & Services (Modules 05-08)

   Room, DataStore, Retrofit, GraphQL, WebSocket, gRPC, Firebase, advanced components (services, WorkManager, CameraX, Glance).

3. 03

   Phase 3 — Quality & Performance (Modules 09-13)

   Testing pyramid, profiling, baseline profiles, R8, publishing, KMP, Wear OS, accessibility, Git workflows.

4. 04

   Phase 4 — Enterprise Engineering (Modules 14-19)

   Gradle at scale, modularization with 30+ modules, OWASP security, CI/CD pipelines, observability with SLOs, design systems at scale, i18n, foldables.

5. 05

   Phase 5 — Career (Module 20)

   Leveling expectations, system design interviews, Android question bank, portfolio strategy, negotiation.

The complete module map

Phase	Module	Focus
Foundations	01	Kotlin Foundation — language, coroutines, advanced patterns
Foundations	02	Android Fundamentals — platform, Activities, Fragments, Views
Foundations	03	Jetpack Compose — UI, performance, custom layouts & gestures
Foundations	04	Architecture & Patterns — MVVM, MVI, offline-first, DI
Data & Services	05	Data & Persistence — Room, DataStore, migrations, encryption
Data & Services	06	Networking & API — REST, GraphQL, WebSocket, gRPC, SSE
Data & Services	07	Firebase & Cloud — Auth, Firestore, FCM, Analytics, Remote Config
Data & Services	08	Advanced Components — Services, WorkManager, CameraX, Glance
Quality & Perf	09	Testing & Quality — JUnit, MockK, Turbine, Compose tests, CI
Quality & Perf	10	Performance — LeakCanary, R8, baseline profiles, macrobenchmark
Quality & Perf	11	Publishing — Play Console, App Bundles, IAP, AdMob, ASO
Quality & Perf	12	Advanced & Trending — KMP, ML Kit, Wear OS, TV, BLE, IoT
Quality & Perf	13	Version Control — Git, branching, PRs, conventional commits
Enterprise	14	Gradle & Build Systems — convention plugins, version catalog, perf
Enterprise	15	Modularization at Scale — 30+ modules, API/impl, dynamic delivery
Enterprise	16	Security & Compliance — OWASP MASVS, cert pinning, Play Integrity
Enterprise	17	CI/CD & DevOps — GitHub Actions, Fastlane, staged rollouts
Enterprise	18	Observability — Crashlytics, Performance, distributed tracing, SLOs
Enterprise	19	Enterprise UX — design systems, a11y, i18n, foldables, motion
Career	20	Career & Interview — leveling, system design, portfolio, negotiation

The modern Android stack at a glance

Legacy Android

What we avoid

• Java with verbose null-handling
• XML layouts + findViewById / view binding
• AsyncTask, callbacks, RxJava chains
• Manual Dagger 2 with subcomponents
• Copy-pasted Groovy build scripts
• Monolithic single-module app
• Ship-and-pray releases

Modern enterprise Android

What we teach

• Kotlin 2.x with K2 compiler, first-class null safety
• Jetpack Compose (declarative, reactive)
• Coroutines + Flow for async
• Hilt for zero-boilerplate DI
• Version catalogs + convention plugins (Kotlin DSL)
• Modular architecture with enforced boundaries
• Staged rollouts with automated halt on regression

Prerequisites

You don't need any Android experience. You do need:

• Basic programming knowledge in any language (variables, loops, functions, conditionals)
• A computer with 16 GB+ RAM running Windows, macOS, or Linux (Android Studio + emulator is heavy)
• Curiosity and willingness to build real projects

We install Android Studio together in Module 02. Bring your own machine and a willingness to break things — that's how you learn.

Projects you'll build

By the end of this program you'll have shipped five complete apps, each designed to reinforce a different layer of the enterprise stack:

🛒

E-Commerce App

Catalog, cart, payments, orders — Compose, Hilt, Room, Retrofit, MVI checkout.

💬

Social Media App

Real-time chat with WebSocket + Firestore, push via FCM, media in Cloud Storage.

🍔

Food Delivery App

Live tracking with Maps, foreground services, WebSocket status, separate courier app.

💪

Fitness Tracker

Sensors, Wear OS companion, Health Connect, offline-first, KMP shared module.

📰

News Aggregator

Offline-first reading with Room, Paging 3, WorkManager sync, Glance home widget.

How to use this curriculum

ℹRecommended pace

• Self-learner: 10–14 hours per week → finish in ~8 months.
• Student: 5–8 hours per week → finish in ~12 months alongside coursework.
• Working professional: 8–12 hours per week → finish in ~7 months.
• Team bootcamp: 40 hours per week → finish in ~12 weeks with daily stand-ups.

Don't rush. Build the projects. Reading the code is not the same as writing it. Ship at least three of the five projects to a real Play internal track.

What you'll be able to do at the end

• Build production-ready Android apps with Kotlin 2.x and Jetpack Compose
• Design modular, testable, maintainable architectures with MVVM, MVI, and Clean Architecture
• Integrate Firebase, GraphQL, WebSocket, gRPC for any backend shape
• Write unit, integration, UI, and macrobenchmark tests with confidence
• Profile and optimize apps to < 1.5s cold start on mid-tier devices
• Harden apps for OWASP MASVS L2 including Play Integrity and cert pinning
• Ship with staged rollouts, automated halt, and feature flags
• Operate apps with SLOs, distributed tracing, and structured logs
• Build accessible, internationalized, foldable-ready UIs
• Interview and negotiate at senior, staff, or principal levels

Ready to start?

✓Your path

1. Start with Module 01 — Kotlin Foundation — the language is the bedrock.
2. Pace yourself — depth beats speed.
3. Build at least two capstone projects while working through the curriculum.
4. Bookmark the Architecture Guide and Design Patterns — you'll return to them constantly.
5. When ready to interview, jump to Module 20 — Career & Interview Prep.

Head over to Module 01 — Kotlin Foundation and let's begin.