I have more than 10 years of expertise working with deployments of VoIP Systems and IT Solutions, Setting up IP PBX gateways based on Asterisk and FreeSwitch, integrated Systems like ViciDial/ViciBOX, FreePBX, A2Billing, ASTPP, Elastix/Isabel, 3CX, OpenVBX and Kazoo, also SMS Systems Like PlaySMS, Jazmin and Kannel.
also got good knowledge about:
PHP
MYSQL
HTML
CSS
WORDPRESS
NODEJS
JAVASCRIPT
VPN
VPS
CLOUD COMPUTING
UNIX/LINUX ADMINISTRATION
WINDOWS ADMINISTRATION
FORTINET
UBIQUITI
MIKROTIK
CISCO