Single-handedly built a backend for a point of sale system combined with order processing and a CMS. The system runs in a scalable and fault-tolerant cluster and processes orders of tens of thousands of customers throughout Europe. It handles all aspects including serving dynamic websites, processing orders, email communication, credit card payments, stock control, and statistics. It also has a separate app for restaurant managers to handle their orders and see traffic in real time.
- Ranked 10th, 17th in Central-European, and 19th in International Informatics Olympiad Selection Contest (Hungary)
- Made official English translation for Chinese Github projects Luban 鲁班 (6K+ stars) and CircularAnim (1.5K+ stars)