•Management and troubleshooting of the Network applications, equipments infrastructure installed at Data centre.•Manages IP Network operations of Company, which includes monitoring and administration of Multi-Vendor Environment of Juniper Networks®, Cisco Systems®, Alcatel Lucent®, Fortinet® and Patton®.•Administration of overall secure enterprise design of the NCCPL internal and external infrastructure serving more than 1000 nodes.•Administration of wide area network design of the NCCPL internal network serving more than 500 nodes for Karachi, Lahore and Islamabad Stock Exchanges.•Implemented Wide Area Connectivity (DXX, Frame Relay circuit, ISDN Lines, Two Internet Circuits, DSL lines and Dark Fiber) between 4 sites in Karachi, Lahore and Islamabad offices.•Designed and implemented NMS Softwares (WhatsUp Gold and Cacti) for the monitoring of Business Machines, Back Office Machines, Wireless LANs, Network Devices and WAN Links.•Re-engineering of enterprise network designs to optimize and to ensure network security.•Troubleshoot, identify and solve technical issues in the implementation & live operation of the network, scanning, intrusion detection.•Implementation and administration of daily operational procedures for effective and efficient operation of hardware/software, VPN, virus protection and other security measures for 150+ Desktop PCs, notebooks over Wireless based LAN infrastructure.•To define and implement Network Security and Network Management policies and procedures.•To communicate and liaison with web hosting and internet connectivity (bandwidth) provider(s) for reliable, smooth and stabilized web hosting of company websites.•Experience/understanding of common Layer2 WAN technologies.•Preparation of MIS report of different links and network equipment.