Linux system administrator with over 10 years of experience:
* managing high traffic sites (load balancing, clustering and high availability)
* application scalability and performance tuning (apache/php, lighttpd, nginx, mysql clustering and replication, etc.)
* virtualization and cloud computing (vmware, xen, kvm, amazon ec2)
* security (linux, routers and firewalls) and monitoring (nagios, cacti, etc).
* various linux distributions including Debian/Ubuntu, RedHat/Centos/Fedora, SuSE, Slackware, Gentoo, etc.