Kaj has worked for Netnod since 2002. He holds a Master of Science in Systems and Computer Science from Uppsala University. Before this he was the Technical Director for KPNQwest Sweden. He has also worked as a programmer at Ericsson Data and as a Technical Support Engineer at the International Atomic Energy Agency (IAEA) in Vienna. 

Kaj is part of the operations team and works with peering and operations. In addition to the work Kaj does at Netnod, he also runs his own company on the side.