Frontend Developer from Cracow, Poland, passionate about modern web and mobile technologies. I specialize in building scalable web and mobile applications with a focus on code quality, architecture, and developer experience. I develop enterprise solutions, developer tools, and experiment with AI and computer vision.

Beyond coding, I'm interested in:

• 🎣 Fishing – relaxation by the water and patience in angling
• 🎨 Miniature Painting – precision and attention to detail in modeling hobby

Specializations:

• ⚛️ Advanced React patterns (Hooks, Context API, Custom Hooks, Compound Components)
• 🏗️ Enterprise application architecture with Next.js (SSR, SSG, ISR, App Router)
• 🎨 Design systems and component libraries
• ♿ Accessibility (WCAG 2.1, ARIA) and performance optimization
• 🔄 State management (React Context, Zustand, Redux)

React Native Development:

• 📱 Implementing cross-platform mobile applications with React Native + Expo
• 🚀 Leveraging Expo SDK for rapid prototyping and development
• 🔧 Integration with native APIs (camera, geolocation, push notifications)
• 🎯 Mobile app performance optimization
• 📦 Build and distribution process (EAS Build, OTA Updates)

Code Quality:

• 🔍 Static code analysis and linting (ESLint, TypeScript)
• 💅 Automatic formatting (Prettier)
• ✅ Type-safe data validation (Zod)
• 🤖 Semantic versioning and release automation
• 📦 Shareable configurations for teams

Next.js Template for Enterprise Projects – Production-ready template with best practices that accelerates new project setup. Includes pre-configured tools, structure for scalable applications, and performance optimizations.

Tech: Next.js, TypeScript, Tailwind CSS, ESLint, Prettier

React Native Template with Expo – Modern mobile app template built with React Native and Expo. Features pre-configured navigation, state management, and development tools to jumpstart cross-platform mobile projects.

Tech: React Native, Expo, TypeScript, React Navigation

Hand Gesture Control System – Innovative application using AI and computer vision to control mouse cursor through gestures. Combines machine learning with practical user interface application.

Tech: Python, OpenCV, MediaPipe, Jupyter Notebook

Extension for Zod – Library enabling dynamic modification of validation schemas. Adds additional validation rules (e.g., notEqual) without rewriting existing schemas, increasing code reusability.

Tech: TypeScript, Zod

• eslint-config – Shareable ESLint config compliant with Szum-Tech standards for JavaScript/TypeScript/React
• prettier-config – Prettier configuration for consistent code formatting across projects
• semantic-release-config – Release automation and versioning with semantic-release and GitHub Actions

• 📱 Developing React Native skills with Expo - building cross-platform mobile apps
• 🔨 Expanding developer tools ecosystem for teams
• 📚 Exploring advanced AI and machine learning techniques in web application context
• 🎯 Perfecting enterprise application architecture and design patterns
• 🌐 Sharing knowledge through open source and community

const myApproach = {
  codeQuality: "Type-safe, tested, maintainable",
  architecture: "Scalable, modular, SOLID principles",
  userExperience: "Accessible, performant, delightful",
  learning: "Continuous improvement, sharing knowledge",
  collaboration: "Open source, community-driven"
};

If you'd like to talk about projects, technology, React Native, or just discuss the best fishing rods and miniature painting techniques – feel free to reach out!