Leanpub Header

Skip to main content

Senior Android Developer Interview Prep Track

Senior Android interviews test real understanding, not memorized answers. This track goes beyond “how to use Kotlin” into how Kotlin and Android actually work under the hood, including compiler behavior and internal concepts. With hands-on playgrounds and 400+ quiz and interview-style questions, it helps you practice reasoning through problems and confidently tackle senior-level technical interviews.

Minimum price

$249.00

$299.00

You pay

$299.00
$

...Or Buy With Credits!

You can get credits with a paid monthly or annual Reader Membership, or you can buy them here.
These courses have a total suggested price of $507.00. Get them now for only $249.00!
About

About

About the Track

Senior Android developer interviews rarely test memorized answers. They test whether you truly understand how things work under the hood. This track takes you beyond “how to use Kotlin” into “how Kotlin and Android actually work,” exploring internal implementations, bytecode and compiler behavior, and the system-level concepts that shape modern Android development.

With hands-on Code Playgrounds for immediate practice, more than 400 quiz and interview-style questions, and practical follow-up discussions with full answers, the course focuses on deep understanding rather than rote memorization. The goal is simple: help you reason about problems, explain concepts clearly, and confidently handle the kind of technical discussions senior Android interviews are built around.

Manifest Android Interview Course

Manifest Android Interview Course presents practical challenges framed as interview questions and offers a structured roadmap for learning and refreshing Android and Jetpack Compose knowledge. It spans the core Android framework, system internals, UI architecture, Jetpack libraries, data and business logic, and Jetpack Compose from fundamentals and runtime behavior to state management, UI composition, and design practices.

This course goes beyond surface-level APIs by diving into Android's internals: it walks through how the Activity lifecycle is managed by the system, how the Compose compiler transforms your code, how the Snapshot system drives recomposition, and how performance optimizations actually work under the hood. Every question is followed by a step-by-step walkthrough that not only explains how to solve it but also explores why the solution works, connecting concepts to their underlying mechanisms and design rationale.

This balance ensures that you strengthen your knowledge of both classic Android and modern declarative development, understanding not only how to use these tools effectively but also why they were designed the way they are.

To simulate real hiring conditions, many lessons end with follow-up challenges that mirror on-site interview tasks, helping you practice deeper problem-solving and technical reasoning. The course includes over 370 practical and follow-up questions with full answers across 8 chapters, each designed to build the kind of analytical thinking that interviewers look for.

The 60+ "Pro Tips for Mastery" sections go beneath the surface, covering internal API design, performance trade-offs, and architectural decisions that matter in real-world projects. Senior engineers will find thought-provoking details to sharpen their expertise, while mid-level developers gain a toolkit for leveling up their Android skills and building a stronger analytical mindset.

Unlike passive reading, this course challenges you to actively engage with the material through over 250 interactive assessments. The assessments include exercises that test your understanding, quizzes that reinforce core concepts, and advanced challenges that analyze real code scenarios. Each chapter concludes with a comprehensive recap of key terms and concepts, followed by assessments designed to solidify your knowledge before moving forward.

Whether you're preparing for an interview, transitioning to Compose, or deepening your Android expertise, this course challenges you to go beyond memorizing APIs. Learn to reason about design choices, understand internal mechanisms, and approach Android development with clarity, curiosity, and confidence.

Upon successfully completing this course, you will receive a Manifest Android Interview Certificate, a digital certificate that validates your comprehensive understanding of Android and Jetpack Compose.

This course has been built on top of the same content of the Manifest Android Interview book, with the same ISBN number (979-8285926436)

Practical Kotlin Deep Dive Course

Practical Kotlin Deep Dive Course unpacks the "how" and "why" behind Kotlin from core language fundamentals and internal mechanisms to the design of its APIs. It spans Kotlin basics, the standard library, coroutines, kotlinx libraries, compiler internals, and Kotlin Multiplatform.

This course goes beyond surface-level APIs by diving into Kotlin's internals: it walks through real Kotlin function implementations, demystifies generated bytecode, and explains how the Kotlin compiler interprets the language. It also draws directly from KEEP proposals, JetBrains YouTrack discussions, and compiler source code to connect concepts to their origins and design rationale. The result is an approach that helps you reason about Kotlin instead of simply memorizing APIs.

This progression ensures that you understand not only how to use Kotlin effectively, but also why the language was designed the way it is, giving you insights that translate directly into better code.

For continuous growth, the course includes curated references and additional resources so you can keep exploring beyond its modules. Complex or less common terms are explained with accessible context, making advanced material approachable for newcomers while offering fresh insights to seasoned developers.

The advanced sections go beneath the surface, covering internal structures of Kotlin functions, algorithms, how the Kotlin compiler behaves, and implementation details that matter in real-world projects. Senior engineers will find thought-provoking details to sharpen their expertise, while mid-level developers gain insights for leveling up their Kotlin knowledge and building a stronger analytical mindset.

Unlike passive reading, this course challenges you to actively engage with the material through 158 interactive assessments and hands-on Code Playgrounds. Each lesson features a Code Playground with ready-to-run Kotlin examples, step-by-step explanations, and open-ended challenges that let you practice concepts immediately after learning them. The assessments include coding exercises that test your understanding, quizzes that reinforce core concepts, and advanced challenges that analyze real code scenarios. Each chapter concludes with a comprehensive recap of key terms and concepts, followed by assessments designed to solidify your knowledge before moving forward.

Whether you're optimizing performance-critical code, handling complex coroutine tasks, exploring multiplatform development, or writing your own compiler plugins, this course challenges you to go beyond tutorials. Learn to reason about language design, understand internal mechanisms, and approach Kotlin development with clarity, curiosity, and confidence.

Upon successfully completing this course, you will receive a Kotlin Deep Dive Certificate, a digital certificate that validates your comprehensive understanding of Kotlin.

This course has been built top of the same content of the Practical Kotlin Deep Dive book, with the same ISBN number (979-8243872744)

Certificates

After completing this track, you will get 2 certificates, which include:

  • Official Recognition: A professionally designed digital certificate image.
  • Personal Signature: Signed by Jaewoong Eum (skydoves), Google Developer Expert for Android, Kotlin, and Firebase.
  • Completion Verification: Demonstrates that you have passed all quizzes and exercises throughout the course.
Share this track

Certificate

Verified Certificate

When you successfully complete the Track, you will receive a verified Certificate of Completion from Leanpub, certifying that you have completed the entire Track.

Courses

Courses Included

Manifest Android Interview Course

The ultimate guide to cracking Android & Compose technical interviews.

Manifest Android Interview Course presents practical challenges framed as interview questions and offers a structured roadmap for learning and refreshing Android and Jetpack Compose knowledge. It spans the core Android framework, system internals, UI architecture, Jetpack libraries, data and business logic, and Jetpack Compose from fundamentals and runtime behavior to state management, UI composition, and design practices.

This course goes beyond surface-level APIs by diving into Android's internals: it walks through how the Activity lifecycle is managed by the system, how the Compose compiler transforms your code, how the Snapshot system drives recomposition, and how performance optimizations actually work under the hood. Every question is followed by a step-by-step walkthrough that not only explains how to solve it but also explores why the solution works, connecting concepts to their underlying mechanisms and design rationale.

This balance ensures that you strengthen your knowledge of both classic Android and modern declarative development, understanding not only how to use these tools effectively but also why they were designed the way they are.

To simulate real hiring conditions, many lessons end with follow-up challenges that mirror on-site interview tasks, helping you practice deeper problem-solving and technical reasoning. The course includes over 370 practical and follow-up questions with full answers across 8 chapters, each designed to build the kind of analytical thinking that interviewers look for.

The 60+ "Pro Tips for Mastery" sections go beneath the surface, covering internal API design, performance trade-offs, and architectural decisions that matter in real-world projects. Senior engineers will find thought-provoking details to sharpen their expertise, while mid-level developers gain a toolkit for leveling up their Android skills and building a stronger analytical mindset.

Unlike passive reading, this course challenges you to actively engage with the material through over 250 interactive assessments. The assessments include exercises that test your understanding, quizzes that reinforce core concepts, and advanced challenges that analyze real code scenarios. Each chapter concludes with a comprehensive recap of key terms and concepts, followed by assessments designed to solidify your knowledge before moving forward.

Whether you're preparing for an interview, transitioning to Compose, or deepening your Android expertise, this course challenges you to go beyond memorizing APIs. Learn to reason about design choices, understand internal mechanisms, and approach Android development with clarity, curiosity, and confidence.

Upon successfully completing this course, you will receive a Manifest Android Interview Certificate, a digital certificate that validates your comprehensive understanding of Android and Jetpack Compose. This certificate includes:

Official Recognition: A professionally designed digital certificate image.

Personal Signature: Signed by Jaewoong Eum (skydoves), Google Developer Expert for Android, Kotlin, and Firebase.

Completion Verification: Demonstrates that you have passed all quizzes and exercises throughout the course.

This course has been built on top of the same content of the Manifest Android Interview book, with the same ISBN number (979-8285926436)

Manifest Android Interview Course

The ultimate guide to cracking Android & Compose technical interviews.

Manifest Android Interview Course presents practical challenges framed as interview questions and offers a structured roadmap for learning and refreshing Android and Jetpack Compose knowledge. It spans the core Android framework, system internals, UI architecture, Jetpack libraries, data and business logic, and Jetpack Compose from fundamentals and runtime behavior to state management, UI composition, and design practices.

This course goes beyond surface-level APIs by diving into Android's internals: it walks through how the Activity lifecycle is managed by the system, how the Compose compiler transforms your code, how the Snapshot system drives recomposition, and how performance optimizations actually work under the hood. Every question is followed by a step-by-step walkthrough that not only explains how to solve it but also explores why the solution works, connecting concepts to their underlying mechanisms and design rationale.

This balance ensures that you strengthen your knowledge of both classic Android and modern declarative development, understanding not only how to use these tools effectively but also why they were designed the way they are.

To simulate real hiring conditions, many lessons end with follow-up challenges that mirror on-site interview tasks, helping you practice deeper problem-solving and technical reasoning. The course includes over 370 practical and follow-up questions with full answers across 8 chapters, each designed to build the kind of analytical thinking that interviewers look for.

The 60+ "Pro Tips for Mastery" sections go beneath the surface, covering internal API design, performance trade-offs, and architectural decisions that matter in real-world projects. Senior engineers will find thought-provoking details to sharpen their expertise, while mid-level developers gain a toolkit for leveling up their Android skills and building a stronger analytical mindset.

Unlike passive reading, this course challenges you to actively engage with the material through over 250 interactive assessments. The assessments include exercises that test your understanding, quizzes that reinforce core concepts, and advanced challenges that analyze real code scenarios. Each chapter concludes with a comprehensive recap of key terms and concepts, followed by assessments designed to solidify your knowledge before moving forward.

Whether you're preparing for an interview, transitioning to Compose, or deepening your Android expertise, this course challenges you to go beyond memorizing APIs. Learn to reason about design choices, understand internal mechanisms, and approach Android development with clarity, curiosity, and confidence.

Upon successfully completing this course, you will receive a Manifest Android Interview Certificate, a digital certificate that validates your comprehensive understanding of Android and Jetpack Compose. This certificate includes:

Official Recognition: A professionally designed digital certificate image.

Personal Signature: Signed by Jaewoong Eum (skydoves), Google Developer Expert for Android, Kotlin, and Firebase.

Completion Verification: Demonstrates that you have passed all quizzes and exercises throughout the course.

This course has been built on top of the same content of the Manifest Android Interview book, with the same ISBN number (979-8285926436)

Practical Kotlin Deep Dive Course

Unlocking the 'How' and 'Why' behind Kotlin fundamentals and internal mechanisms.

Practical Kotlin Deep Dive Course unpacks the "how" and "why" behind Kotlin from core language fundamentals and internal mechanisms to the design of its APIs. It spans Kotlin basics, the standard library, coroutines, kotlinx libraries, compiler internals, and Kotlin Multiplatform.

This course goes beyond surface-level APIs by diving into Kotlin's internals: it walks through real Kotlin function implementations, demystifies generated bytecode, and explains how the Kotlin compiler interprets the language. It also draws directly from KEEP proposals, JetBrains YouTrack discussions, and compiler source code to connect concepts to their origins and design rationale. The result is an approach that helps you reason about Kotlin instead of simply memorizing APIs.

This progression ensures that you understand not only how to use Kotlin effectively, but also why the language was designed the way it is, giving you insights that translate directly into better code.

For continuous growth, the course includes curated references and additional resources so you can keep exploring beyond its modules. Complex or less common terms are explained with accessible context, making advanced material approachable for newcomers while offering fresh insights to seasoned developers.

The advanced sections go beneath the surface, covering internal structures of Kotlin functions, algorithms, how the Kotlin compiler behaves, and implementation details that matter in real-world projects. Senior engineers will find thought-provoking details to sharpen their expertise, while mid-level developers gain insights for leveling up their Kotlin knowledge and building a stronger analytical mindset.

Unlike passive reading, this course challenges you to actively engage with the material through 158 interactive assessments and hands-on Code Playgrounds. Each lesson features a Code Playground with ready-to-run Kotlin examples, step-by-step explanations, and open-ended challenges that let you practice concepts immediately after learning them. The assessments include coding exercises that test your understanding, quizzes that reinforce core concepts, and advanced challenges that analyze real code scenarios. Each chapter concludes with a comprehensive recap of key terms and concepts, followed by assessments designed to solidify your knowledge before moving forward.

Whether you're optimizing performance-critical code, handling complex coroutine tasks, exploring multiplatform development, or writing your own compiler plugins, this course challenges you to go beyond tutorials. Learn to reason about language design, understand internal mechanisms, and approach Kotlin development with clarity, curiosity, and confidence.

Upon successfully completing this course, you will receive a Kotlin Deep Dive Certificate, a digital certificate that validates your comprehensive understanding of Kotlin. This certificate includes:

  • Official Recognition: A professionally designed digital certificate image.
  • Personal Signature: Signed by Jaewoong Eum (skydoves), Google Developer Expert for Android, Kotlin, and Firebase.
  • Completion Verification: Demonstrates that you have passed all quizzes and exercises throughout the course.

This course has been built top of the same content of the Practical Kotlin Deep Dive book, with the same ISBN number (979-8243872744)

Instructor

About the Instructor

The Leanpub 60 Day 100% Happiness Guarantee

Within 60 days of purchase you can get a 100% refund on any Leanpub purchase, in two clicks.

Now, this is technically risky for us, since you'll have the book or course files either way. But we're so confident in our products and services, and in our authors and readers, that we're happy to offer a full money back guarantee for everything we sell.

You can only find out how good something is by trying it, and because of our 100% money back guarantee there's literally no risk to do so!

So, there's no reason not to click the Add to Cart button, is there?

See full terms...

Earn $8 on a $10 Purchase, and $16 on a $20 Purchase

We pay 80% royalties on purchases of $7.99 or more, and 80% royalties minus a 50 cent flat fee on purchases between $0.99 and $7.98. You earn $8 on a $10 sale, and $16 on a $20 sale. So, if we sell 5000 non-refunded copies of your book for $20, you'll earn $80,000.

(Yes, some authors have already earned much more than that on Leanpub.)

In fact, authors have earned over $14 million writing, publishing and selling on Leanpub.

Learn more about writing on Leanpub

Free Updates. DRM Free.

If you buy a Leanpub book, you get free updates for as long as the author updates the book! Many authors use Leanpub to publish their books in-progress, while they are writing them. All readers get free updates, regardless of when they bought the book or how much they paid (including free).

Most Leanpub books are available in PDF (for computers) and EPUB (for phones, tablets and Kindle). The formats that a book includes are shown at the top right corner of this page.

Finally, Leanpub books don't have any DRM copy-protection nonsense, so you can easily read them on any supported device.

Learn more about Leanpub's ebook formats and where to read them

Write and Publish on Leanpub

You can use Leanpub to easily write, publish and sell in-progress and completed ebooks and online courses!

Leanpub is a powerful platform for serious authors, combining a simple, elegant writing and publishing workflow with a store focused on selling in-progress ebooks.

Leanpub is a magical typewriter for authors: just write in plain text, and to publish your ebook, just click a button. (Or, if you are producing your ebook your own way, you can even upload your own PDF and/or EPUB files and then publish with one click!) It really is that easy.

Learn more about writing on Leanpub