Waternet
Sem Keijsper is a skilled software development professional with experience in various programming languages and roles. Sem has held positions as a C# Developer, AutoLISP Developer, and Web Developer at Waternet, as well as a Web Developer at BuildingInfo. Additionally, Sem worked as a Java Developer at Prodity Services and as a Software Engineer at Craftimize. Earlier in Sem's career, IT Support Specialist duties were performed at Studentaanhuis. Sem holds a VWO degree with a focus on Nature and Technology from Leiden, completed in 2016.
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Waternet
We zuiveren afvalwater en maken drinkwater. Ook houden we het oppervlaktewater op peil en schoon. Dat doen we namens Amsterdam en ons waterschap.