10 years experienced unix admin my total experience with ISP's and Software House
my key responsibility are as follows
Transparent squid using ipfilter along with qmail as outgoing smtp server on FreeBSD,Centos,Ubuntu,
LAMP environment (mysql database creation, backup/restore, php extensions management and up-gradation).
Domain management php and ruby on rails project
SVN for easy software project repository
Management of Amazon elastic cloud instances i.e. creation and termination of instances using auto scaling.
Xen and vmware deployment for running multiple operating systems
Deployed instant messaging service usicng jabber protocol to replace msn messenger.
Msn chat interception for monitoring suspicious employees activities using perl.
Mysql configuration and tuning
Apache webserver configuration and optimization
Working with cisco,Juniper Switches and Routers as well as Microsoft Server,Linux Server