- Backend
- PHP, Custom PHP architecture, Symfony, CakePHP, Node.js, MySQL, Scheduled and background jobs
- Frontend
- JavaScript, TypeScript, HTML, CSS / SCSS, Twig, Bootstrap, Vite
- APIs, integrations
- REST API, SOAP / WSDL, OAuth 2.0, Webhooks, CSV / XML import with field mapping, SFTP, Icecat, TecDoc, MNB exchange rates
- E-commerce, ERP
- Shoprenter, UNAS, Shopify, OpenCart, Octopus 8, Novodata, Cobra, Kulcs-Soft, Barion
- AI
- OpenAI API — product copy, translation, SEO text, AI-assisted development with Claude Code
- DevOps
- CI/CD, VPS operations, Docker, Fly.io, Git, Automated testing (Playwright)
- Marketing, product feeds
- Google Analytics 4, Google Tag Manager, Klaviyo, Google Shopping feed, Meta catalog, Árukereső feed
- Mobile
- Kotlin, Jetpack Compose, Android
- Real-time 3D
- Three.js, Rapier physics, WebSocket, Colyseus
- Currently learning
- C#, Game development