Roger Nobel is a customer support engineer at the Cisco Systems Technical Assistance Center (TAC) in Switzerland. He joined Cisco in 2000 as a project engineer. He owns a Swiss-Engineer degree from the University of Applied Sciences Winterthur/Zurich with specialization in software engineering and transmission technologies. He holds CCIE Wireless (#23679), CWNA, and CWSP (#400138).
Fabian Riesen is technical leader at the Cisco Systems Technical Assistance Center (TAC) in Switzerland. He joined Cisco in 1999 as a project engineer. He owns a Swiss-Engineer degree from the University of Applied Sciences Winterthur/Zurich with specialization in software engineering and transmission technologies. He holds CCIE ISP-Dial and CCIE Wireless (#6268). Fabian was a reviewer for the Cisco Press book Deploying and Troubleshooting Cisco Wireless LAN Controllers and is the author of one of the CCIE Wireless Written and Lab examinations.
Federico Ziliotto joined Cisco in 2007 as a customer support engineer (CSE) at the Technical Assistance Center (TAC) in Belgium, where he specialized in solving high severity issues for worldwide customers with particular focus on wireless networks, network admission control (NAC) setups, identity-based networking (IBN), and 802.1X, AAA solutions, and Cisco TrustSec. Federico owns an engineering degree from the University of Padova, Italy, with specialization in telecommunications. He is double CCIE #23280 in Wireless since January 2009 and Routing & Switching since April 2011. In June 2011 he moved to a new position as systems engineer in Cisco France, in the Solution and Technology Practice (STEP) team, where he currently collaborates with the pre-sales teams in security- and mobility-related projects.
Federico Lovison is a customer support engineer at the Cisco Systems Technical Assistance Center (TAC) in Belgium. He joined Cisco in 2007 as a CSE. He owns an engineering degree from the University of Padova with specialization in telecommunications. He holds CCIE Wireless (#23307).
Erik Vangrunderbeek is CCIE wireless product manager within Learning@Cisco. Based out of Brussels, Belgium, he is responsible for the exam design and content development process for both the CCIE Wireless written and lab exams. Erik joined Cisco in 1999 and holds CCIE #9145.