Job Description*7+ years experience *Configure and install various network devices and services in the Cisco Application Centric Infrastructure (ACI) environment*Perform network maintenance and system upgrades which includes Cisco Nexus 9k,7k,3k and 2k Switches, Cisco Catalyst Switches, and Cisco ASR Routers*Configure and Maintenance of Firewall's , other Security appliance which Includes VPN, URL Filtering and Threat Defense*Configuration of Load balancing and F5 Big-IP Administration including algorithms and health check option*Implementation and maintain of Cisco Unified Communications systems includes CUCM, CUC, UCCE, CUPS, CUBE, CER, IM&P and Jabber*Monitor performance and ensure system availability and reliability*Provide Level-2/3 support and troubleshooting to resolve issues* Select and implement tools, policies, and procedures in conjunction with the company's Network Security Team*Patching Of the Windows and Linux Servers On Call Support over the Weekends* Liaise with vendors and other IT personnel for problem resolution