Hi, I'm Casper Zielinski
Web Developer
Mobile Software Development student at FH Joanneum passionate about creating innovative web applications using Next.js and React
About Me
I am a dedicated Mobile Software Development student at FH Joanneum with a passion for web and app development. I enjoy creating responsive applications with robust functionality—from building full-stack features and database integration to implementing APIs and routing systems.
Most Used Languages
Programming languages I use the most
My Projects
SmartKassa
RKSV-compliant cash register and ride management system for Austrian taxi companies. With JWT authentication, receipt generation, and a native mobile app via Capacitor.
Social Media App with AI
Interactive social platform with real-time posts, comments, nested replies, and live like updates. Features authentication and guest login
Issue Tracker
Project management tool for tracking issues, bugs, and tasks with status management, priority levels, and user assignments
My Skills
TypeScript
Programming Languages
Java
Programming Languages
Python
Programming Languages
SQL
Query Languages
React
Libraries
Next.js
Frameworks
Express.js
Frameworks
Node.js
Runtime
Capacitor
Mobile
Certificates & Badges
AI Fluency for Builders
Claude Academy · Issued October 1, 2026
This course enables builders to develop AI fluency and so increase impact and efficiency, while staying true to owning the whole arc from problem to shipped solution. It covers the 4D model (Delegation, Description, Discernment, Diligence), what current AI does well and where it reliably reaches its limits, writing acceptance tests before any code exists, turning a user need into a precise AI instruction, judging AI-generated work through five lenses (correctness, quality, fit, experience and responsibility), and deciding whether to ship, fix or stop.
Claude Code 101
Claude Academy · Issued October 16, 2026
An agentic coding tool that lives in your terminal. This course covers the fundamentals of Claude Code: the agentic loop, context window management, tools and permissions, effective prompting with Plan Mode, and the Explore → Plan → Code → Commit workflow. It also covers CLAUDE.md for persistent project memory, custom subagents, MCP server integration, and hooks for deterministic control over formatting and notifications.
Google Developer Program: Jetpack Compose Essentials
Google Developer Program
My Google Developer Program profile, featuring the Jetpack Compose Essentials badge. It is earned by completing the Google learning path for building Android user interfaces with Jetpack Compose. Besides this one, I have earned other badges as well, which you can find on my profile.
GitHub Activity
Contribution Activity
Visual representation of my GitHub contributions displayed as an interactive snake animation
GitHub Statistics
Comprehensive overview of my GitHub activity including commits, streaks, and contribution metrics
Top Repositories
Featured repositories showcasing my most significant contributions and projects
Contact Me
casper.zielinski.work@gmail.com