Hi, I'm

Konrad
Szewczuk

Mobile Software Engineer with 5+ years of commercial Android experience, focused on building Kotlin Multiplatform and Flutter applications for Android and iOS. Passionate about clean architecture and practical engineering.

GitHub Google Play LinkedIn Medium Mail

Technology stack

Tools I work with

Android

Kotlin

iOS

Flutter

Dart

Kotlin Multiplatform

Compose Multiplatform

Coroutines

Ktor

Firebase

Git

What I do?

- Native Android applications with Kotlin and Jetpack Compose
- Clean Architecture, MVVM/MVI, Coroutines and StateFlow
- Production debugging, automated testing, CI/CD and releases
- Shared domain, data, presentation and Compose Multiplatform UI
- Ktor, Room KMP, kotlinx.serialization and expect/actual
- Android and iOS integration with cross-platform tests and CI
- Cross-platform mobile applications for Android and iOS with Flutter and Dart
- BLoC, GoRouter, Firebase and maintainable feature-based architecture
- Platform-specific debugging, automated testing, CI/CD and store releases
- Task decomposition and implementation with Codex and OpenCode
- Manual diff review and ownership of architectural decisions
- Verification through tests, static analysis and platform builds