I am very experienced with:
* Magento/WordPress/HTML
* Linux maintaince/troubleshooting (RHEL, Centos, Debian, Ubuntu, FreeBSD, gentoo, Mac OS X Server),
* Virtualization: (Vmware Esxi 5.x, Openvz, Virtuozzo, Xen, KVM, vserver),
* Cloud hosting (Amazon EC2, AWS, S3, RDS, simple Cache),
* Networking (dhcp, DNS:powerdns/bind/named, vpn: openvpn/pptp, firewalls: iptables/ipfw, qos, proxies, tcpdump),
* Web servers (apache, nginx, lighttpd, tomcat, ssl installation and troubleshooting),
* Caching ( apc/xcache/memcached/varnish/nginx)
* Mail servers (exim, postfix, qmail, antispam/ antivirus: clamav/spamassassin/amavis, courier, dovecot),
* Bulk marketing (Dkim, spf, high speed/inboxing, interspire),
* Automation (puppet, perl/shell/awk scripting),
* Monitoring (nagios, zabbix, munin),
* Hosting Ccontrol Panels (Cpanel/WHM, Plesk, Directadmin, ISPconfig..).
* Mobile Application (Android / iOS / Windows Phone)* Magento/WordPress/PHP