I'm a self-taught software developer specializing in game development, full-stack web applications, and mobile development. With expertise spanning Unity game development, iOS/iPadOS/macOS native applications, web technologies, and even IBM i systems, I bring versatile technical skills to every project.

• Game Development: Creating engaging multiplayer experiences and idle RPG systems with Unity
• Mobile Development: Building native iOS/iPadOS/macOS applications with Swift and SwiftUI
• Full-Stack Web Development: Developing comprehensive web applications with PHP, JavaScript, and MySQL
• Security Systems: Implementing authentication and license management solutions
• Problem Solving: Regularly tackling algorithmic challenges on LeetCode and Codewars

Advanced multiplayer co-op survival game with up to 4 players fighting waves of enemies

• Tech Stack: Unity, C#, PHP, MySQL, Photon Networking
• Features: Complex skill tree system, various weapons and armor types, inventory system, chat and ban system, multiplayer synchronization

A relaxing idle RPG game with character progression and quest systems

• Tech Stack: Unity, C#
• Features: NPC quest system, daily quests, equipment upgrades, skill system, interactive map, multi-language support (PL/EN)

Fast-paced mobile game for Android and PC

• Tech Stack: Unity, C#
• Platform: Android & PC

Comprehensive security management system with native apps and web interface

• Tech Stack: Swift, SwiftUI, PHP, MySQL, Bootstrap
• Features: Patrol route management, real-time logging, offline capabilities, multi-platform support (iOS/iPadOS/macOS/Web)
• Highlights: RESTful API architecture, responsive web interface, native Apple platform integration

iOS application for monitoring pet health and activities

• Tech Stack: Swift, SwiftUI
• Features: Pet health tracking, weight monitoring, vet visit management, persistent local storage with UserDefaults

Complete school management system for students, teachers, and administrators

• Tech Stack: PHP, JavaScript, MySQL, HTML, CSS
• Features: Grade management, attendance tracking, internal mail system, announcements, file sharing, event calendar

Classic Minesweeper game implementation in vanilla JavaScript

• Tech Stack: JavaScript, HTML, CSS
• Features: Three difficulty levels, custom map settings, score system, bomb marking

Database-backed license management system for Unity games

• Tech Stack: Unity, C#, PHP, MySQL
• Features: Admin panel, key banning system, random key generation, secure activation

Lightweight activation system for Unity games without database requirements

• Tech Stack: Unity, C#, PHP
• Features: Simple integration, multiple backend options (FTP, PasteBin)

Classic Tic-Tac-Toe game written in RPG for IBM i systems

• Tech Stack: RPG (Report Program Generator), IBM i
• Features: Interactive 5250 terminal interface, two-player gameplay, game state persistence

Collection of algorithm problem solutions

• Tech Stack: C#
• Focus: Data structures, algorithms, problem-solving patterns

• 🌍 Portfolio Website: blazejczyk.net
• 💼 LinkedIn: Mateusz Błażejczyk
• 📧 Email: mateusz@blazejczyk.net
• 🎮 Google Play: YellowSink

⚡ Fun Fact: I started as a game developer and expanded into full-stack development, mobile apps, and even IBM i systems!