SUMMARY

• Over all 7+ years of experience in routing, switching, system design, implementation and troubleshooting of complex network systems as well as understanding on firewall technologies.
• Switching tasks include VTP, ISL/ 802.1q, IPSec VPN Tunneling, VLANs, Ether Channel, Trunking, Port Security, STP and RSTP.
• Experience working with Nexus 7010, 5020, 2148, 2248 devices.
• Good knowledge with the technologies VPN, WLAN and Multicast.
• Well Experienced in configuring protocols HSRP, GLBP, ICMP, IGMP, PPP, PAP, CHAP, and SNMP.
• Experience in configuring Site - to-site and remote access VPN solutions.
• Has very strong experience on Cisco routers (800, 1700, 1800, 2600/2600XM, 2800, 3600/3600XM, 3700, 3800, 7200), switches (2950, 2960, 3550, 3570, 4510R, 6500, MDS 9000 SAN, 5000 NX-OS), VPN concentrators 3000 series, ACS 4.1, Cisco PIX (501, 506E, 515/515E, 525, 535) firewalls, ASA (5505, 5510, 5520), IDS and IPS (4235, 4250).
• Oversee maintenance and support of all network infrastructure using Cisco switches, routers, ASA,F5 load balancers, and other typical network vendors.
• Experienced in Cisco Unified Communications (CUCM), Messaging and Telepresence Cisco Unity/Express (CUC), Call Manager v4.x, Cisco Media Convergence Servers 7800 series, IPCC, Fax gateways integrating VoIP, voice/analog, fax, IP Fax and web-based interfaces.
• Extensive experience in configuring and troubleshooting of routing protocols RIP v1/v2, EIGRP, OSPF and BGP.
• Hands on Control and setup all video conferences, utilizing the MGC Bridge, Polycom and Tandberg video conferencing equipment connecting major city site.
• Hands on Video conferencing modes such as VAS, continuous presence and cloud -based video conferencing.
• Worked on network topologies and configurations, TCP/IP, UDP, Frame Relay, Token ring, ATM, bridges, routers, hubs and Switches.
• Implemented routing protocols (RIPv1/2, IGRP, EIGRP, OSPF, BGP), switching (VLANS, VTP Domains, STP, and trunking), security on devices hardening (authentication, authorization, and accounting).
• Involved in design and deploying various network security & High availability products like Cisco ASA and other security products.
• Experience withPaloAltoNetworksNext Gen firewalls.
• Understanding the JUNOS platform and worked with OS upgrade of Juniper devices
• Hands on security technologies like McAfee and citrix in mobilizing data delivery. worked on ADVA, Aruba and infoblox that include network controls with secure DNS, DHCP and IP.
• Excellent communication skills, Enthusiastic, motivated and a team player
• Experience with Change management process and Project documentation tools like Excel and VISIO
• Played various customer interaction roles in various capacities, across projects in different areas.
• A highly organized individual who adopts a systematic approach to problem solving, effectively analyzes results and implements solutions
• Highly motivated with the ability to work independently or as an integral part of a team and Committed to highest levels of professional.
• Knowledge on Cisco Firewalls, Cisco PIX (506E/515E/525/) & ASA 5500(5510/5540) Series and Cisco CSR.
• Hands on OSPF, TCP/IP, BGP, RIP protocols using quagga.
• In depth understanding of IPV4 and implementation of Sub netting.
• Configured Security policies including NAT, PAT, VPN, Route-maps, prefix lists and Access Control Lists.
• Extensive Experience in WAN Technologies, Switching Technologies along with Failover Mechanisms & Inter VLAN Routing types.

TECHNICAL SKILLS

Switches: Cisco catalyst 2900,2960,3560,3750,4500,4900,6500 Nexus 2000,5000,6000 and 7000 series

Switching: ARP, GARP, 802.1q, VLAN, VTP, STP (802.1d), RSTP (802.1w), PVST, RPVST and Ether-channels.

LAN Technologies: VLAN, VTP, STP, RSTP, PVST, IGMP, Inter-Vlan routing

WAN Technologies: Frame Relay, ISDN, PPP, ATM, MPLS, Channel & Leased lines, SES

Routing Protocols: OSPF, RIP, EIGRP, BGP, HSRP, PIM, and IPv6.

Routed Protocols: TCP/IP, IPX/SPX

Infrastructure Services: DHCP, DNS, POP3, FTP, TFTP, HTTP, Syslog

Network Managements: Cisco works, Telnet, SNMP, SSH, ICMP

IP Telephony: VOIP, FXO/FXS/E&M/T1/ISDN/ PRI, Call manager Express.

Firewall Technology: Cisco ASA 5580 series, Juniper SRX3600 and PA-5050, MCAfee, citrix, Palo Alto Firewall 7k, 5k series

Languages/ Tools: C, C++, MATLAB, Visual Studio 2008, Python

Operating Systems: Windows 7/ 8.1 /Vista/XP/NT/2003, MS DOS,IOS, UNIX, Linux

PROFESSIONAL EXPERIENCE

Confidential, Nashville, TN

Sr Network Engineer

Responsibilities:

• Routing Protocols, Networking Layer1, 2, 3 Switching concepts, LAN/WAN technologies, Wireless Networking, TCP/IP concepts.
• Managed network device configurations, logical names and addresses, network design and implementation.
• Team member of Configuration of Cisco 7206 router with VPN and Configuration of Catalyst switches.
• Configuration 7609, 7606 with OSPF and catalyst 6505, 4500, 3550 switches with various VLAN.
• Configuration and troubleshooting of Cisco 2500, 2600, 3000, 6500, 7500, 7200 Series routers.
• Create and test Cisco router and switching operations using OSPF routing protocol, ASA Firewalls, and MPLS switching for stable VPNs. Cisco CLI, Cisco works, Network Security, Network Analysis Tools .
• Configured Cisco IOS-XR Engineer Feature Set, NAT and Simple Network Management Protocol (SNMP) for Network Security implementation.
• Planning and implementation of OSPF protocol and internet IBGP and EBGP peering relationship with other ISP.
• Configuring of IP Allocation and sub netting for all applications and servers and other needs throughout company using FLSM, VLSM addressing.
• Use and maintain routing protocols EIGRP, OSPF and BGP on the Routers in the network & also worked on BGP Route Reflectors, Confederations.
• Modified router configurations with additional VLANs, port assignment.
• Configured Routing protocols such as RIP, OSPF, EIGRP, MPLS static routing and policy base routing.
• Configured HSRP and VLAN trucking 802.1Q, VLAN Routing on Catalyst 6500 switches.
• Provided Technical Support and solutions for Network Problems.
• Dedicatedly Improved OSPF convergence by controlling SPF algorithm.
• Configuration and troubleshooting link state protocols like OSPF in single area and multiple areas
• Highly skilled in TCP/IP tool like TELNET for remote login to the routers and SSH for secure login.
• Responsible for Checkpoint firewall management and operations across our global networks.
• Hands on security technologies like MCAfee and citrix in mobilizing data delivery.
• Extensively worked on Checkpoint Support for resolving escalated issues.
• Extensively worked on Nexus 5k and 7k, troubleshooting and configuration.
• Configured and managed Cisco IDS/IPS, Cisco secure Intrusion Prevention System (IPS/IDS)
• Having Data Center Design Experience, installing and Configuring Network Devices in a Data Center including patching the cables in the Patch Panel.
• Design and implemented network Provided Load Balancing towards access layer from core layer using F5 Network Load Balancers.
• Upgraded load balancers from Radware to F5 BigIP v9 which improved functionality and scalability in the enterprise.
• Worked on UTB and Wireless Networks Configuration, maintenance, management and Data Backup.
• Selected to assist Personal Wireless Communications work center during critical manning shortage to provide expertise and assist with repairs of pagers, cell phones, and radio equipment.
• Experience converting Cat OS to Cisco IOS-XR on the Cisco 6500 switches
• Managing a TACACS server for VPN user authentication and network devices authentication
• Planned, tested and evaluated various equipments, IOSs and procedures for use within the Network security infrastructure, upgraded IOS, troubleshoot network outages.
• Migration of Check Point to Palo Alto Firewalls.
• Installation, upgradation and troubleshooting of Palo Alto firewalls.
• Participated in all technical aspects of Internet security Service projects including, short and long term planning, implementation, project management and operations support as required.
• Validate existing infrastructure and recommend new network designs.
• Estimated Project costs and created documentation for project funding approvals.
• Managed various teams involved in site surveys, cabling specifications, Network equipment installation and configuration.

Environment: CISCO routers and switches, Access Control Server, VLAN, Trunk Protocols, CISCO ASA, DHCP, DNS,SAN, MCAfee, citrix, Spanning tree, Windows Server, Windows NT.

Confidential, Sunnyvale, CA

Sr Network Engineer

Responsibilities:

• Configured Routing protocols such as RIP, OSPF, EIGRP, static routing and policy based routing.
• Team member of Configuration of Cisco 7206 router with VPN and Configuration of Catalyst switches.
• Installed and maintained Cisco and Load Balancer and documentation.
• Implementing Cisco ISR G2 routers with BGP and Configuring VoIP Doing Gateway to Cisco migration.
• Proficient in Cisco IOS-XR Engineer for configuration & troubleshooting of routing protocols: MP-BGP, OSPF, LDP, EIGRP, RIP, BGP v4, MPLS.
• Worked on OSPF, TCP/IP, RIP, BGP routing protocols using Quagga.
• Configuration 7609, 7606 with OSPF and catalyst 6505, 4500, 3550 switches with various VLAN.
• Create and test Cisco router and switching operations using OSPF routing protocol, ASA Firewalls, and MPLS switching for stable VPNs.
• Configuration and troubleshooting link state protocols like OSPF in single area and multiple areas.
• Managed the F5 BigIP GTM/LTM appliances to include writing iRules, SSL offload and everyday task of creating WIP and VIPs.
• Redesign of Internet connectivity infrastructure for meeting bandwidth requirements.
• Configured HSRP and VLAN trucking 802.1Q, VLAN Routing on Catalyst 6500 switches.
• Experience with configuring Nexus 2000 Fabric Extender (FEX) which acts as a remote line card (module) for the Nexus 5000.
• Experience configuring VPC, VDC and ISSU Software upgrades on Cisco Nexus 7010
• Cisco IOS and Cisco CatOS configuration and backups, Uploading and download IOS and CatOS using XModem, TFTP and FTP protocols
• Optimized performance of the WAN network consisting of Cisco switches by configuring VLANs.
• Design, and configuring of OSPF, BGP on Juniper Routers and SRX Firewalls.
• Worked extensively in Configuring, Monitoring and Troubleshooting Cisco's ASA 5500/PIX security appliance, Failover DMZ zoning & configuring VLANs/routing/NATing with the firewalls as per the design.
• Upgraded, installed and supported Cisco Wireless controllers (Cisco 7500, 8500).
• Prepared action plans and schedules to identify specific wireless problems and to solve the problem, limit the number of contacts to be made.
• Configured VLANs with 802.1q tagging. Configured Trunk groups, ether channels, and Spanning tree for creating Access/distribution and core layer switching architecture.
• Configured BPDU Guard, port-fast, uplink fast and other spanning tree features.
• Configuration and troubleshooting of Cisco 2500, 2600, 3000, 6500, 7500, 7200 Series routers.
• Providing Technical Support and solutions for Network Problems.
• Implementing NAT solution's on wan applications.
• Planned, tested and evaluated various equipment's, systems, IOSs and procedures for use within the Network / security infrastructure.
• Experience in HSRP standby troubleshooting & Experience in configuring & upgrading of Cisco IOS-XR
• Configuring and implementing F5 BIG-IP, LTM, GTM load balancers to maintain global and local traffic.
• Participate in all technical aspects of LAN, WAN, VPN and security Internet Service projects including, short and long term planning, implementation, project management and operations
• Worked on Cisco Routers, Active /Passive Hubs, Switches, Cisco PIX Firewall, Cisco ASA, NOKIA Firewalls, Nortel VPN Concentrators TCP/IP, NAT and Checkpoint ESX/GSX firewall.
• Hands on Netscalar 10k & 20k load balancer.
• Worked on ADVA, Aruba and infoblox that include network controls with secure DNS, DHCP and IP.
• Having Data Center Design Experience, installing and Configuring Network Devices in a Data Center including patching the cables in the Patch Panel. Design and implemented network infrastructure.

Environment: Cisco ASA 5540, Palo Alto Firewall, BIG-IP LTM 8900, QOS, Policy-maps, Class-maps, Nexus, Vlans, STP, RSTP, PVSTP, VTP, HSRP, Ether Channel,BGP,OSPF,EIGRP, MPLS,ATM,PPP,HDLC. SNMP, TACACS+, DNS, DHCP, Quagga, Basics of WLA

Confidential - Denver, CO

Network Engineer

Responsibilities:

• Working with Network Design and implementation teams on various projects across related to Brach, Campus and Data Center.
• Implemented and maintained various WAN equipment such as Cisco 2800, 3800 and 7200 routers, ASR 1006.
• Experience working with Cisco 3750, 4948, 2811, 2600, 7200, 6500, series switches.Designing and deployment of Partner IPSEC VPN tunnels.
• Involved in the configuration & troubleshooting of routing protocols: MP-BGP, OSPF, LDP, EIGRP, RIP, BGP v4. Configured IP access filter policies.
• Deploying and decommissioning Cisco switches and their respective software upgrades.
• Experience with manipulating various BGP attributes such as Local Preference, MED, Extended Communities, Route-Reflector clusters, Route-maps and route policy implementation.
• Deploying and commission of core ASR 1K, Nexus 7K, 5K and its downstream devices.
• Experience configuring Virtual Device Context in Nexus 7010
• Experience with converting Cisco 6500 IOS to Cisco Nexus NX-OS in the data center environment.
• Provided Wireless Tier1, II support for our Federal customers.
• Experience configuring VPC, VDC and ISSU Software upgrades on Cisco Nexus 7010.
• Experience in Configuring, upgrading and verifying the NX-OS operation system.
• Performed OSPF, BGP, DHCP Profile, HSRP, IPV6, Bundle Ethernet implementation on ASR 9K redundant pair.
• Experience working Juniper T-Series, M-Series, ERX 1400, M320, MX960, J-Series Routers.
• Experience in VAS and Cloud-based video conferencing.
• Design, implementation and operational support of routing/switching protocols in complex environments including BGP, OSPF, EIGRP, Spanning Tree, 802.1q, etc.
• Performing troubleshooting on slow network connectivity issues, routing issues that involves OSPF, BGP and identifying the root cause of the issues.
• Configure Corporate, Wireless and Lab Devices which includes Bandwidth Upgrade, Adding New Devices, Decom the Devices, Testing ( Pilot)
• Implemented DHCP, DNS, IPAM configuration on the servers to allocate, resolute the ip addresses from Subnet.
• Troubleshoot the Network Issues onsite and remotely depending on the severity of the issues.

Environment: Switching, Routing, Nexus, Access-lists, Sub netting, STP, RSTP, VTP, HSRP, Port-Channel, EIGRP, RIP, PPP, HDLC. SNMP, DNS, DHCP, Palo Alto, VAS, MGC bridge.

Confidential, LA, CA

Network Engineer

Responsibilities:

• Configuring EIGRP, OSPF and Static Routing on Cisco Routers
• Design implementation and support of Networks using TCP/IP
• Upgraded SMUs (Software Maintenance Units) on ASR9K routers.
• Replaced EOL cisco 6509 with cisco 7609 under LDOS Project
• Configured BGP, MPLS, OSPF on 7609 router
• Configured various protocols on E911 routers
• Worked on E911 routers for various regions
• Swapped Cisco 7206VXR with Cisco ASR1004
• Configured RIP, OSPF and Static routing on JuniperM and MX series Routers.
• Upgraded IOS code on cisco 4900 boxes to newer code
• Upgraded Nexus-OS on Nexus7000 series routers and as well as Nexus 5000 series routers
• Upgraded SUP cards on Nexus 7000 routers
• Have written MOPs and tech-reviewed the MOPs for various platforms
• Worked as On-Call Engineer in the team.

Environment: TCP/IP, Racking, Stacking, VLSM, IP addressing, Sub netting, Routing Protocols.

Confidential

Jr. Network engineer

Responsibilities:

• Worked on network-based IT systems such as racking, stacking, and cabling
• IOS upgrading of 1900, 2900, 3500 series Cisco Catalyst switches and 2500, 2600, 3600 series Cisco routers using TFTP
• Involved in switching related tasks implementing VLANs
• Performed network troubleshooting, technical support, and recording of backup operations.
• Prepared the technical specifications in operation manuals
• Served as a main escalation point of contact for level I team
• Coordinated with higher-level support and external vendors for resolution
• Maintained all servers & network equipment with current stable firmware, IOS images & access control lists
• Implemented strategies for operating systems, virus protection, mail systems and Internet services
• Performed scheduled Virus Checks & Updates on all Servers & Desktops.
• Resolved all computer related problems, monitored and maintained system functionality and reliability by identifying ways to prevent system failures
• Network maintenance checks, configure and manage printers, copiers, and other miscellaneous network equipment.
• Involved in trouble shooting of DNS, DHCP and other IP conflict problems.

Environment: TCP/IP, RIP, Access-lists, LAN/WAN, Trunking 802.1, ISL.