About Karol
I am a results-driven Mobile Product Builder specializing in Flutter & AI-assisted development. Based in Hamar, Norway, I help startups and established businesses turn their vision into high-quality iOS and Android applications in record time.
My unique advantage is the deep integration of AI tools like Cursor and Claude Opus into my coding workflow. This allows me to build, debug, and iterate significantly faster than traditional developers, providing my clients with a much shorter Time-to-Market without compromising on code quality.
What I bring to the table:
Expert-level Flutter & Dart development.
Clean Architecture with Riverpod for scalable state management.
Rapid MVP development from scratch to production.
Full deployment support for App Store (Xcode) and Google Play Store.
Backend integration with Firebase.
I have a proven track record of building complex, production-ready apps like K.S-Gym (a full gym management system) and Visi-app. I don't just write code; I build functional products that solve real business problems.
Ready to build your next mobile app? Let’s connect!
English
Native or bilingual
Polish
Native or bilingual
Can work on-site
Hamar (up to 50km)
Experience
- Independent Project / Visi-appFlutter Developer - Performance & UI SpecialistDIGITAL AND ITApril 2024 - Today (2 years and 4 months)Hamar, NorwayOpracowanie wydajnej aplikacji narzędziowej o nazwie Visi-app, ze szczególnym naciskiem na bezproblemową obsługę użytkownika i nowoczesną konstrukcję interfejsu.Kluczowe osiągnięcia i zestaw rozwiązań technicznych:Zarządzanie stanem: w pełni zaimplementowane w Riverpod, co zapewnia reaktywną i solidną architekturę.UI/UX: Tworzenie niestandardowych, responsywnych komponentów, które zapewniają płynne działanie zarówno na urządzeniach z wyższej, jak i niższej półki.Wydajność: Zoptymalizowano czas uruchamiania aplikacji i renderowania listy w celu uzyskania maksymalnej efektywności.Przepływ pracy oparty na sztucznej inteligencji: wykorzystano kursor i połączenie sztucznej inteligencji do szybkiego tworzenia prototypów funkcji i utrzymania dużej prędkości ich dostarczania.This project proves my ability to handle complex UI requirements and deliver a polished, production-ready mobile product independently.
- Freelance Mobile App DevelopmentAI-Empowered Flutter Developer | Product BuilderDIGITAL AND ITJanuary 2024 - Today (2 years and 7 months)Hamar, NorwayMobile Product Builder & Flutter SpecialistI specialize in end-to-end mobile app development using Flutter and Riverpod. By leveraging an AI-integrated workflow (Cursor & Claude Opus), I deliver production-ready applications significantly faster than traditional development teams.Key focus and deliverables:Rapid MVP Development: Turning ideas into functional iOS & Android apps in weeks.Clean Architecture: Using Riverpod for scalable and maintainable state management.Full Deployment: Handling the entire pipeline from VS Code to App Store (Xcode) and Google Play.Recent projects include K.S-Gym (a comprehensive gym management system) and visi-app (utility application), both built with a focus on high performance and clean UI.
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