Designing and Building Scaling Redundant Load Balanced Systems of ServersRedHat / CentOS / Ubuntu / Debian / Gentoo LinuxSolaris / AIX / HP-UXWindows Workstations and ServersTask Automation with Shell / Perl / PHP ScriptingPostgreSQL, MySQL, MSSQL, Informix, SqLite DatabasesApache HTTP Web Server & Apache Tomcat Application ServerExtract / Transform / Load - Pentaho Data IntegrationSamba / File ServersCisco & Other Routers / Switches / FirewallsDNS / Reverse DNS / DHCP / NIS / LDAPRouters / Switchs / Vlans / BGP / VPN'sOpenVPN / WireGuard / IPSec / Proxies / L2TPGIT / Mercurial / SVN / CVS / Bazaar versioning systems adminSet up system monitoring and usage softwareProvide 24x7 support for production serversBenchmark and performance tuningBuilding / Managing Development / Testing / Production Environments and DeploymentsLinux Containers and Virtual MachinesManage user accounts and allocate resourcesLinux IPTables & RoutingAutomated BackupsSoftware Installation and PatchingWebmail AdminRecommend HW/SW purchasesSet up and monitor backup scriptsCat6 cable installation and maintenanceJava, C, C++, CGI, SQL, Bourne Shell programmingx86 Assembly, Basic, Lisp, and Pascal programmingUnix and Windows programmingSome HTML, Java script, JSP, and PHP developmentMixed UNIX & Windows environmentsBuilding / Servicing computer hardwareConnect::Direct Secure+ NDM ManagementCan learn any BSD if wanted.Could learn Android/IOS development if needed...I can pick up anything that can be done with computers quickly if something else is needed...I can build inexpensive redundant linux network routers and vpns that work as well or better than expensive cisco routers