Hardware: error troubleshooting and repair
Software: Windows desktop and server, Linux ( Debian, Ubuntu, Centos, etc. ) administration and implementation, Mail server ( Zimbra, Postfix ), error troubleshooting and repair
Networking: Implementation and administration complex enviroment, vlan, VPN, multiple subnet and gateways, wireless implementation, kiosk, hotspot, firewall troubleshooting, pfSense administration, Unifi Administration, Ubiquiti devices administration
Virtualization: Vmware ESXi, Proxmox, KVM, XenServer administration, Qnap, Synology NAS
Languages: Python, Golang, HTML5, Php
Google G Suite and Office 365 implementation