Hi, I'm Konrad Szewczuk

Mobile Developer

I build reliable mobile applications with Flutter, Dart and Kotlin, focusing on clean architecture, automated testing, offline-first experiences and maintainable code.

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Technology stack

Tools I work with

Flutter Flutter
Dart Dart
Android Android
Kotlin Kotlin
iOS iOS
Firebase Firebase
SQLite SQLite
Git Git
Astro Astro
TypeScript TypeScript
Tailwind CSS Tailwind CSS
Cloudflare Cloudflare

Expertise

What I do

  • Cross-platform applications with Flutter and Dart
  • Native Android development with Kotlin
  • BLoC, clean architecture and modular application design
  • REST API integration and offline-first data storage
  • Unit, widget and integration testing
  • Firebase, analytics, crash reporting and app distribution
  • Responsive landing pages and developer portfolios
  • Astro, TypeScript and Tailwind CSS
  • Static deployment with Cloudflare Pages
  • SEO metadata, Open Graph and structured data

My work

Projects

MoviesForDevs

MoviesForDevs

Deployed
StockIn

StockIn

On Development
Svgl.app

Svgl.app

Contributor
Rifas Velez Web

Rifas Velez Web

Deployed
More projects on

Let's talk

Contact

Have a question or a project in mind? Feel free to reach out.

Location: Colombia, Valle del cauca