I have more then 7 years experience in Linux and BSD System Administration.
Also, I have 4 years of Project Management experience.
Linux & BSD system administration and tuning
Networking and security.
PHP, MySQL, Apache, DNS, SSH, VPN, FTP, SAMBA, RAID, LVS etc. - installation and configuration.
Mail (SMTP/IMAP/POP3, anti-spam, anti-virus solutions); solving mail deliverability issues.
Virtualization - Xen, Citrix.