* Advanced knowledge:
- Operating systems: Windows 95/98/NT/2000/XP, Mac OS X, VMware ESX, Windows Server 2003 / 2008
- Mail Software: Lotus Notes 6.0 /6.5 and Outlook XP / 2003
- Ticketing: Corporate Associates Unicenter Servicedesk.
- Deployment: Ghost, Columbus, DeployCenter, ImageCast, WinINSTALL
- Remote Control: Dameware, pcAnywhere, VNC, Remote Desktop, MSTSC
- VPN: IPSec, Business Everywhere, Cisco VPN
- Server: DNS, DHCP, Print Server, Active Directory, Samba, NFS, FTP, Mac OS XServer
- Virtual machine: VMware ESXi, VMware Virtual center

* Good working knowledge:
- Systems: Ubuntu, Debian, Unix systems, Blackberry server
- Servers: CIFS, Apache, Tomcat, Postfix, SMTP
- Languages: HTML, PHP, MySQL, Ada, Python, C, ...
- Virtual machine: Citrix, KVM