Infrastructure Monitoring expert. Zenoss Guy
Server Security
Performance Tuning
Benchmarking Servers
Securing,Tuning Apache and MySql for better performance,
Server Monitoring Tools/Utilities: Zenoss (snmp and zenoss plugin over ssh), Monit,Kickstart, Webmin, Awstats, Fabric Yum, RPM, GIT, memcache, Curl-loader.