HOW ONLINE PAYMENTS ACTUALLY WORK? - A Talk with Willem Pino, Founding Engineer of Rootline

​What if one of the most important parts of the internet is the one you never see? 🌐

​Every ride you book, subscription you start, or product you order relies on payment systems quietly running in the background. Most founders only realise how complex this really is when things start breaking at scale.👨‍💻

​In this session, we’ll lift the curtain on how online payments actually work - where things go wrong, why “just adding a checkout button” is never that simple, and what it really takes to build systems that scale.🚀

​Willem Pino, founding engineer of Rootline - a startup building systems behind online payments, will share lessons from helping platforms make sense of money movement in the digital economy. 💳

​Whether you’re exploring startup ideas or just curious about fintech, this session will change how you look at every “Pay” button you click. 👀

​📅 Wednesday, 14th January 2026
🕔 17:00 - 18:30
📍 Roeterseiland Campus REC A - ROOM A2.06