Networking ( BGP , Inter-VLAN routing ) Switching ( VLAN , TRUNK , ETHER CHANNEL , MLAG , Mac-Security ) Security -Firewall Installation and Administration / Rule Creation Knowledge about the SDWAN Knowledge and hands on on Load Balancers configuration , Farm Creation , Health check creation and so on. Should have good troubleshooting skills on above technologies. Should have worked on Radius /TACACS ( AAA) tools. Should have exposure to the monitoring tools and configuration. Responsible for hardware and software installation, maintenance, and upgrading. Respond to inquiries and requests for assistance. Investigate hardware/software problems and perform repairs. Install, configure, and support internal organization s and customer organization s LAN, WAN, and Internet system or segments thereof.