Technical Showcase
Examples of production-grade systems I've built over 9 years. These showcase the architecture, code quality, and technical approach I bring to every project. Click any item to explore implementation details.
GoOffline — Spotify to Vinyl & CD Converter
A high-performance web platform that converts Spotify playlists into vinyl and CD shopping lists — powered by a self-hosted FastAPI backend, Cloudflare edge network, and a modern React/TypeScript frontend.
▸Self-hosted infrastructure — zero cloud compute costs
Law Office Marzena Litewka-Marzęta — Full IT Solutions
End-to-end IT solutions for a law firm in Krakow — from website and domain management to encrypted communications, cloud storage, AI integrations, and office hardware setup.
▸Full IT infrastructure delivered end-to-end
Enterprise Stripe Integration for SaaS
A production-ready payment system architected for a growing SaaS platform, handling complex subscription models, usage-based billing, and multi-currency support.
▸99.9% payment processing uptime
AI-Powered Business Dashboard
An intelligent analytics platform that transforms raw business data into actionable insights using advanced AI models, reducing manual analysis time and improving decision-making speed.
▸70% reduction in analysis time
LinkedIn Feed Blocker
A privacy-focused Chrome extension that helps professionals reclaim their focus by blocking LinkedIn's endless feed while preserving access to valuable features like messages, profiles, and job opportunities.
▸5.0 star rating on Chrome Web Store