 Tools used: ServiceNow, Net-Brain, SevOne Troubleshooting BGP, DMVPN and link failures on IL, VPN links and coordinating with vendors. Switch configurations & modification on Cisco 3850 Switches. Router configurations & modification on Cisco ISR 4431 series routers. GNAC configuration on ports. Security overlay Implementation on ports. IOS upgradation on switched and routers. Coordinating with problem mgt team as problem coordinator to root analysis for problem tasks. Maintain production network according to company SLAs and ITIL ITSM processors. (Incident / Change / Configuration / Problem Management) Respond to user support calls regarding network issues, correcting those problems whenever possible,ensuring resolution to problems when other assistance is required, and document issue. Collaborate with other technology and groups within the organization to provide and Support new networkand cross-team functional solutions aligning with business strategies. Diagnose and resolve complex network problems.

+++++++++++++ Technical Skills ++++++++++++++++++++++++++# Network Management: SysLog, SNMP, IP SLA, NetFlow, SPAN, RSPAN, Kiwi Syslog Server, Wireshark Solarwinds Real-time NetFlow Analyzer, Packet Sniffering tools such as SmartSniff # Cisco Platforms: Cisco IOS 12.x & 15.x# Windows Server Platforms: 2003, 2008, 2012# Infrastructure Services: DHCP, DNS, SMTP, FTP, TFTP, POP, SSL/TLS, IMAP# WAN Technologies: MPLS, Dedicated Leased lines, P2P Leased Lines, IPVPN Links # Routing Technologies: EIGRP, OSPF, RIP, RIPv2, ISIS, BGP, PBR, Route Redistribution, Distribute-Lists and Route Maps, Prefix Lists# Switching Technologies: VLAN, VTP, STP, RSTP, Trunk, ISL, Etherchannels, HSRP, VRRP, GLBP, SVI# Security Technologies: Port Security, VLAN map, DHCP Snooping, IP Source Guard, DAI# Tunneling Technologies: P2P GRE VPNs with IPSec , DMPVPN, mGRE# Cisco Switches: Catalyst 2960 / 3650 / 3850 / 4500 Series # Cisco Routers: 800 / 1751 / 1921 / 2900 / 3900 / 4000 Series Routers# Firewalls: Juniper SRX 220H/ FortiGate 60 / Sonicwall TZ190 / FortiGate 90D# Spam Filers: Fortimail 100C / Barracuda Spamwall 300

Key Responsibilities Handled # Upgraded Network infrastructure with redundant ISP links to have high availability with BGP multihoming. Configuring and troubleshooting tunneling technologies such as P2P GRE VPNs with IPSec, DMVPNs with multipoint GRE & IPSec over public network.# Configuring and troubleshooting MPLS L3 VPN with VRFs, RouteLeaks, CE & PE routers span over HO & ROs.# Configuring and troubleshooting L2 Technologies such as VLANs, VTP, STP, Etherchannels & L3 Switching technologies such as L3 Etherchannels & SVI.# Configuring and troubleshooting routing using RIP, OSPF, EIGRP, BGP and policy based routing using Route-maps , Distributed Lists, IP Prefix Lists.# Implementing L2 security policies using Port Security, VLAN map, DHCP Snooping, IP Source Guard, DAI against Mac-address flooding, VLAN Hopping, DHCP, ARP, IP Spoofing and APR Poisoning & AAA with RADIUS.# STP optimization with BPDU Filter, BPDU, Root & Loop Guards, Portfast, UplinkFast & BackboneFast.# Network monitoring & performance measuring using SysLog, SNMP v2c, IPSLA, NetFlow v5, SPAN/RSPAN. Dealt with monitoring, packet capturing tools such as Wireshark, Kiwi Syslog Server, Solarwinds Real-time NetFlow Analyzer, SmartSniff.# Providing access for branch users to corporate network through site-to-site VPNS using Fortigate & SonicWALL firewalls.# Installed & configured and maintaining corporate Firewalls on Fortigate 90 D/ Juniper SRX 220H / FortiGate 60 / SonicWALL TZ190.# Installed & configured and maintaining corporate Spam Filters on Fortimail 100C / Barracuda Spamwall 300.# Installed & configured and maintaining corporate email servers on Suse Linux POSTFIX with TLS & SASL Authentication & MS Exchange 2003 & 2013 Servers.# Configured and maintaining Linux based services such as DHCP/ FTP/ Apache Web Server/ SQUID Proxy / Send Mail / Squirrel mail Webmail on all-in-one servers based on Red Hat Enterprise.

* In General, responsible for managing the ICT division, planning and implementing all the ICT needs within the group.* Managing all the data communications needs such as internet and emails of the company. * Ensuring the smooth run of the physical network infrastructures with all the IT related equipment in wired & wireless local area networks (LAN) while ensuring the information security. * Managing & approving the purchasing of new hardware, software & software systems as required.* Approving & renewing H/W & S/W Annual Maintenance Agreements and maintaining good relationship with H/W & S/W vendors as well as coordinating with them on renewing same.* Managing the IT staff, assuming duties, supervising them on their tasks * Providing guidance, instructions to the staff in their tasks to archive utmost result.* Forecast annual ICT budget & manipulate annual ICT spending within budgetary allocations.* Ensure to maintain fixed assets registry & cover up with annual insurance policies.* Define data backups & recovery standards on data prioritization & overseeing automated data backups process DR/ remote sites.* Maintain good IT compliance management across the business and corporate sectors.* Managing branch offices, located at Kelaniya, Galle & Hambantota.