Position: Network Security Enginner
Category: Sysadmin
English level: intermediate
Years of experience: 9


I am responsible for maintaining a multi-state, multi-site environment. Including network 
infrastructure support, maintenance and upgrade.
LAN/WAN/MAN networks. Client and tunnel VPN, MPLS, SIP, VoIP, site to site and client wireless.
SNMP network monitoring design and implementation.
Software and Hardware support and maintenance.
Implemented and maintained (NGFW Palo alto, FirePower 2000) firewalls , (ISR 4400, ASR 1000) routers, (2960, 3560, 9200, 6500 series) switches, Meraki cloud Wireless, ISA, ESA and Big Ip f5 WAF series security appliances. Reviewed logs for all networking devices for unresolved abnormalities and problems. Troubleshoot and maintained all networking devices and infrastructure across the enterprise including switches, routers and firewalls. Communicated with vendors to resolve network outages and periods of reduced performance. Upgraded and expanded network systems and their components. Diagnosed system hardware and software problems using advanced root-cause analysis. Monitored system logs for all company computers and devices to maximize uptime. Built server systems and installed into racks.