Hello, I'm Willem.
I build robust software for business and create independent apps used by millions.
Explore my work
I build robust software for business and create independent apps used by millions.
Explore my workAs a technical partner, I build the digital backbone for growing companies, combining strategic thinking with robust and secure software.
Lemmid B.V.Your trusted partner in technology
→ See my Expertise & ServicesAs an independent creator, I build with apps that people keep using with pleasure, with millions of downloads worldwide as a result.
Snake '97Millions of downloads worldwide
→ Discover my Independent AppsWhether architecting a backend or designing a simple game, my approach is the same: discipline, endurance, and a clear focus on the end goal. It's a mindset shaped on the road as a marathon runner and at home as a father. I build things that are simple, strong and made to last.