🎓 Junior Fullstack Developer based in Szczecin, Poland
Passionate about building robust web applications, REST APIs, and Open Source tools.

📌 Internship experience

Deployed GitLab & JIRA servers with Docker, integrated LDAP authentication,
configured CI/CD pipelines, implemented monitoring & backup strategies,
and delivered team training & full technical documentation.

🎓 Education

• Technical School SCI (IT Technician, bilingual program) — 2020–2025
• Ongoing: BSc in Computer Science, West Pomeranian University of Technology (ZUT) (from Oct 2025)

🚀 About me

• 🎓 IT technician with internship experience in DevOps and system setup
• 💻 Strong background in TypeScript, Node.js, Python, and modern Web APIs
• 📦 NPM Package Author & Active Open Source Contributor
• 🦀 Experience in combining Rust & WebAssembly for high-performance web solutions
• 🌱 Keen to expand my tech stack and tackle complex engineering problems
• 🔍 Looking for opportunities as a backend or full-stack developer (remote or on-site)

💡 Tech stack

• 🖥️ Backend & Core: Python (Django, FastAPI), Node.js, Rust, C++, WebAssembly (WASM)
• 🖥️ Frontend: React (TypeScript, JavaScript), Vite
• 🗄️ Databases: PostgreSQL, Firebase, Supabase
• ⚙️ DevOps & Tools: Docker, Git, GitLab CI/CD, JIRA, LDAP, NPM Publishing

🌟 Highlighted projects

• 📦 argon2-extension-mv3

  • NPM Library: Secure, WebAssembly-based Argon2id implementation compatible with Chrome Extension Manifest V3.
  • Solves critical Content Security Policy (CSP) issues by eliminating unsafe-eval in WASM glue code.

• 🔐 Cryptono

  • Password manager built as a Chrome Extension (Vite + Vanilla TS) focused on high security and clean architecture.
  • Powered by my own argon2-extension-mv3 library for secure client-side encryption.
  • Features data compression and decompression on import/export achieved with the Brotli algorithm written in Rust and compiled into WASM.

• 🤖 quote-cli (Open Source Contribution)

  • Active contributor to an open-source CLI tool.
  • Implemented a scalable, multi-provider AI agent architecture using OOP patterns in TypeScript.
  • Added seamless integration support for OpenAI, Anthropic, and GitHub Copilot APIs.

• 📝 ToDo_python

  • A decoupled full-stack ecosystem demonstrating client-server architecture.
  • Features a Django REST Framework backend serving three different clients: React Web App, Python Desktop GUI, and a CLI application.

🚀 Currently learning

• 🏗️ Software Architecture & Clean Code: Focusing on scalable code structure, Design Patterns (OOP, DDD), effective refactoring, and comprehensive Unit Testing (Python & TypeScript).
• 🦀 Rust: Deepening knowledge of memory safety, performance optimization, and advanced WebAssembly integrations.
• 📱 Mobile Development: Building cross-platform applications with Dart and Flutter.

🌍 Languages

• Polish (native)
• English (fluent, C1/C2)

📫 Contact

• Email: artur.cha@outlook.com
• 🔗 My LinkedIn
• Location: Szczecin, Poland (open to remote & stationary work)

⭐ Feel free to explore my repositories below!