Nuwan is Technical Service Manager for the L2 system engineer team and provides service support for worldwide ISP-grade critical solution projects.He is also an experienced System Engineer/Principal Engineer for multiple carrier-grade various solutions with high-scale Linux-based DNS/DHCP and AAA solutions across combinations of WiFi, 3G/4G, and broadband networks. Data analytics solutions with ELK. SI project for Linux server and integration.He has widespread technical knowledge in end-to-end High-Speed Internet Access (HSIA) services (Solution Architect, Implementation, Troubleshooting) and experience in worldwide product support operations. (Wifi network, Integration with external Authentications systems (social media, PMS, Credit card…), Hotel guest services)From 2006 to 2015 (09 years), he works for SLT and gain solid experience in ISP-grade network Operation, Maintenance & Management in the Sri Lank Telecom Metro Ethernet network. Which deliver Island wide critical customer and backbone for broadband L2 services over MPLS.Nuwan is still in good touch in hands-on experience in Linux base server & product appliances operation and maintenance, AWS cloud platform services, KVM/VMware virtualization platform, PHP/Perl/Bash based application and services, Mysql/MariaDB database administration, DRBD/PCS clustering, Dell server hardware maintenance, F5 & FortiGate network appliances, Cisco/HP Switches and routers, carrier-class IP+TDM platforms such as Alcatel ESS 7450, Alcatel 7250 Service Access Switches, Maipu, Tellabs, HUAWEI and ZTE ADSL 2+ access network and SHDSL, ADSL CPE.