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joohnq/README.md

Hi there, I'm João! 👋

Android Developer | Kotlin Multiplatform | Open Source Enthusiast

LinkedIn Google Play


👨‍💻 About Me

I'm a 19-year-old Android Developer from Brazil 🇧🇷 experienced in end-to-end delivery.

My work spans from architectural design and Backend/BFF integration to crafting polished interfaces with Jetpack Compose. I focus on exploring the potential of Kotlin Multiplatform (CMP) to optimize mobile development, while ensuring software quality through automated testing and cross-platform (Android/iOS) troubleshooting.

I take pride in turning ideas into published apps and actively giving back to the community through Open Source contributions.


🚀 Featured Work

📱 Moodly (Android & iOS)

Creator & Lead Developer An app focused on well-being, built from scratch to prove scalable architecture concepts.

  • Tech Stack: Kotlin Multiplatform, Clean Architecture, MVI, Jetpack Compose, SQLDelight.
  • Status: Published on Google Play Store.

🦅 Mozilla Thunderbird (Android)

Top Contributor I actively contribute to Mozilla’s legendary email client for Android.

  • Focus: Adding new features, improving usability, and fixing critical bugs.
  • Impact: Ranked among the top contributors in the repository.
  • 👉 See My Contributions

🧠 Core Skills

Category Technologies
Architecture MVVM, MVI, Clean Architecture, SOLID, OOP
UI & UX Jetpack Compose, Compose Multiplatform, XML, Material Design
Async Coroutines, StateFlow, LiveData, Flow
Networking Retrofit, OkHttp, BFF Integration
Persistence SQLDelight, Room, Encrypted SharedPreferences
Cloud Firebase (Auth, Analytics, Crashlytics), Supabase
Testing JUnit, MockK, Espresso, Compose Test
DevOps GitHub Actions, CI/CD Pipelines

💻 Tech Stack

Image Image Image Image

Thank you for visiting! 🙌

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  1. thunderbird-android thunderbird-android Public

    Forked from thunderbird/thunderbird-android

    Thunderbird for Android – Open Source Email App for Android (fka K-9 Mail)

    Kotlin

  2. moodly moodly Public

    Moodly is a personal diary that tracks mood, sleep, stress and diary, built with CMP for Android and iOS.

    Kotlin 21 3