Dialog Axiata PLC is Sri Lanka’s largest telecommunications service provider, which operates Dialog Mobile, Dialog Broadband and Dialog TV. Dialog is a subsidiary of Axiata Group Berhad (formerly TM International.) Dialog Broadband provides L2/L3 VPNs, VOIP, internet leased lines, Broadband services, Virtual mail server services, Hosted firewall services, Hosted PBX services, Web hosting services etc.Key responsibilities• Worked as an Engineer at the Dialog’s Network Operation Centre (NOC), responsible for maintaining MPLS based IP Core and Wireless based Access Network.• Leading a team of technical staff at the Dialogs’ Technical Assistance Center (TAC) to rectify issues of corporate customer in their Data/Voice/Wi-Fi solutions within SLAs• Monitor network nodes such as P/PE Routers, Core Network Switches, Customer's Data Circuits, Wireless Base-stations , WiFi Hotspots etc.• Service provisioning of corporate customers’ MPLS VPN Solutions• Configure PE routers according to customer site changes and changes of access network infrastructure (Base-Station changes/Transmission Link changes, etc.) ensuring the redundancies of the solutions are maintained.• Update configuration documents of the customers’ networks with the above changes.• Optimize MPLS VPN solutions provided to the customers (Inter-vrf route redistribution using export maps, PE-CE routing protocol changes, route filters, etc.)• Configure CE routers according to new requirements of the customers. (ACL, URL filtering using Cisco IOS, vrf-lite, VLAN, and QOS configurations, etc.)• Configure Monitoring and security template for critical MPLS customer networks using Nagios and Solarwind software with the managed CE methodology.• Configure services on point to multi point Base stations, • Analyze network behavior and provide recommendation for improvements• Preparing TAC SLA achievement reports for the Senior Management.