In 1997, Klaus joined the IAKS headquarters in Cologne as a scientific staff member and was appointed IAKS Managing Director in 2003. In 2015, Klaus became IAKS Secretary General.
Klaus holds a diploma in landscape architecture after having visited universities in Hanover (Germany) and Tours (France) from 1988 to 1995. From 1995 to 1997, he was a technical officer at the German Association of Landscape Architects in Bonn and Berlin.
Besides his general tasks for IAKS, Klaus is responsible for the programming of the biannual IAKS Congresses as well as for the IOC IPC IAKS Architecture Prizes.