Senior WordPress Engineer
My name is Koenraad Koster and I am Senior WordPress Engineer. I have successfully completed the necessary education and courses and I have passed the exams with excellence to be recognized as:
- Microsoft Certified Professional,
- W3schools.com Certified Web Developer,
- Interplein Academy Certified WordPress Expert,
- Interplein Academy Certified WordPress en SEO Expert,
- Interplein Academy Certified Adobe Design Expert.
Learning Management System
Implementing a Learning Management System on my personal WordPress website. Then write the WordPress courses and add them to the Learning Management System.
“Koenraad built the website for Haus Sonnheim for our Bed and Breakfast pension in Kirchberg in Tirol (Austria). I am very satisfied with this beautiful and super fast multilingual website. Thanks to Koenraad, Haus Sonnheim is fully booked all year round.”

John Stolk
Owner of Haus Sonnheim https://haussonnheim.eu
“Wow… what a professional is Koenraad Koster and what awesome webshop he has built for my company. The contact went well and I am very satisfied with the end result. I have recommended Koenraad to multiple people in the business world to have a website built.”

Sandra Vermeer
Owner of Vermeer B.V.