Karol Szymanski's Work | ContraWork by Karol Szymanski
Karol Szymanski

Karol Szymanski

Senior Flutter Dev | High-Speed AI-Driven Delivery

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Oslo, Norway

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Oslo, Norway

Cover image for Just shared my new Flutter
Just shared my new Flutter Legacy Code Audit & Rescue service on LinkedIn! 🚀 My mission is simple: turning technical debt into architectural stability. Currently focused on "bulletproofing" mobile projects—like fixing critical CI/CD pipeline errors in GitHub Actions to ensure seamless releases. If you're struggling with "spaghetti code" or production crashes, let's get your project back on track. High-quality engineering, delivered from Norway. 🇳🇴 #Flutter #MobileEngineer #SeniorArchitect #CodeRescue #Firebase
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Cover image for A pixel-perfect implementation of Material
A pixel-perfect implementation of Material 3 guidelines. Focused on high-contrast visuals for gym environments and intuitive data charts for user engagement
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Cover image for Focused on high-quality, maintainable codebases.
Focused on high-quality, maintainable codebases. This piece showcases my structural approach to Flutter development. Technical Highlights: Standardization: Implemented custom Cursor rules for automated code refactoring and "Spaghetti Code" prevention. Project Structure: Feature-first modular architecture for better scalability. Robust Migration: Experience in handling complex data migrations (as seen in the terminal logs).
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Cover image for A full-scale fitness management platform
A full-scale fitness management platform built with Flutter. Features include real-time workout tracking, advanced analytics, and multi-user coach/client architecture.
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Cover image for A comprehensive, production-ready fitness management
A comprehensive, production-ready fitness management system built for personal trainers and gym owners. This project showcases advanced Flutter engineering, focusing on real-time data synchronization and complex state management. Key Technical Highlights: Architecture: Scalable Clean Architecture with dedicated layers for business logic and data. State Management: Fully reactive UI powered by Riverpod (latest Generators). Backend: Real-time persistence with Firebase (Firestore, Auth, Storage). Features: Intelligent workout suggestions, automated volume tracking, 1RM analytics, and multi-client management for coaches. Design: Sleek Material 3 Dark Theme optimized for high readability in gym environments.:
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