Summary:

• Over 7+ years of experience in design, development, implementation, trouble shooting and maintenance of complex network systems
• Extensive experience in Layer 3 routing and Layer 2 switching and dealt with router configurations like 7200,3800, & 2800 and switches 6500, 4500, 3750,2900 and 3500XL series
• Experience testing Cisco routers and switches in laboratory scenarios and deploy on site for production
• Proficient in configuration of routing protocols like RIP, IGRP, EIGRP,OSPF multiple areas and BGP
• Involved in designing L2VPN services and encryption system and other VPN with IPSEC based services
• Dealt with F5 Local traffic managers, F5 Global Traffic managers of the series like 2400, 3400, 1500, 6900, 8900, 8800, and 6400
• Extensive experience in configuring LTM devices during the migration process of pools, members, virtual servers (VIP), nodes, SNAT
• Worked on firewall Pix525, and other tools like SNMP, AAA, RADIUS and designed VPN with IPSEC and GRE VPN
• Hands on experience on Firewalls like Cisco ASA, Checkpoint, Sonicwall, Juniper, Netscreen, Aruba
• Expertise in IP subnetting and worked on various designing and allocation various classes of IP address to the domain
• Involved in troubleshooting of IP conflict problems and worked on Gigabit Ethernet and Fast Ethernet connection and applied QoS for the bandwidth delay
• Extensive experience taking copy of Cisco IOS on TFTP server and loading on back on routers and knowledge on HP openview software
• Extensive Troubleshooting experience in ISDN and telephony circuits CSU/DSU connections
• Hands on experience on NAT (Network address translation ) configurations and it’s analysis on troubleshooting issues related access lists (ACL)
• Involved in monitoring network traffic and its diagnosis using performance tools like Snort, Snortsnarf, ping tools, and packet player
• Good knowledge on VOIP protocols like H.323, SIP, MGCP and SS7 and interfacing of TDM to VOIP system.
• Hands on experience with the usage of diagnosis tools like F5 Qkview, TCPDUMP for analyzing the real time statistics during the packet flow
• Worked on Avaya Voice gateways for VOIP implementation using Cisco Catalyst switches
• Excellent communication and documentation skills and is able to work individually and team member.

Technical Skills

• Networking: Familiar with Windows, Cisco, UNIX & Linux internetworking
• Protocols & Software’s: OSI,TCP/IP, DHCP, UDP, DNS, RIP v1, RIP v2, IGRP, EIGRP, OSPF, IS-IS, BGP, HSRP, VRRP, and QoS
• Operating Systems: Windows NT/200/2003, UNIX
• Routers: Cisco 2811, Cisco 6509-E(Multi layer Switch), Cisco7200, Cisco3800, Cisco 3640, and Cisco 3745
• Switches: Cisco Multi-layer Switch 6500, Catalyst 4500, Catalyst3750, Catalyst2900 and Catalyst3500XL
• VOIP: SIP,H.323, MGCP,TDM,SS7, Avaya Voice gateways
• Network Monitoring tools: HP openview, Cisco Works, Netscout, Ethereal, tcpdump, netcat, Sniffer, snort & snortsnarf, MRTG
• Hardware Platform: Cisco Routers, Ethernet Switches
• LAN/WAN technologies: T1, DS3,OC3, SONNET, MPLS, DSU/CSU

Professional Experience:

Confidential, Warren, NJ Oct\'11 – Till Date
Network Engineer
Responsibilities:

• Involved in migration of IPSEC/GRE VPN connections from Old data centers to new Datacenters located in SWDC and MWDC
• Involved in troubleshooting Trunks links , adding and removing VLAN over the trunks, implementation of spanning-tree protocol
• Implemented OSPF/BGP protocol , stub areas, routing redistribution issues over routers and switches
• Worked on SFP, Twin-gig link issues and fiber optic cabling like single mode and multi-mode for trunk link connectivity between IDF and MDF devices
• Hands on experience with creating Access lists for controlling data traffic, route injection in the enterprise routing domain
• Dealt with Internet service providers with demarcation issues, T1, OC3 links, loop back testing of the circuits during the flapping over the production
• Proficient in using HPopenview, TFTP, Ethereal, TCPDUMP and sniffer tools for the troubleshooting of Data Networks
• Worked on upgrading the F5 LTM and F5 GTM boxes from TMOS version 9.x to10.x for the local traffic managers
• Worked on F5 LTM, GTM series like 6400, 6900, 8800 for the corporate applications and their availability
• Involved in iRule management like loading rules, writing iRule syntax using TCL language and iRule extension to TCL
• Worked with Juniper Netscreen firewalls

Confidential,Wayne, PA Mar\'11 – Sep’11
Data & Telecom Network Engineer
Responsibilities:

• Worked on the CatOS to IOS conversation of enterprise IDF Cisco switches and MDF ‘s upgrades of IOS image to a news 12.2 version
• Dealt with configuration, migration of VLAN from old to new VLAN domain and worked on the allocation of Class A IP address range to infrastructure devices
• Involved in setting up supervisor engine 32, sup720, sup 2 and installing IOS/CATOS codes for the boot-up process
• Worked on the Cisco devices like 6509, 6513, 7200, 2811, 5500 and worked on all line cards and port configuration for the VLAN
• Used Avaya MSA (Multi Site Administrator) for the Avaya Phone and for the Pre and Post configuration check-ups for the IDF- IOS conversion project
• Worked on dealing with 6509/6513 Chassis problems and troubleshooting of Err-disabled ports and re-setting to normal port status
• Worked on PIX firewalls for building the ACL rules for the extranet connectivity and implementation of the rules on the corporate firewalls and monitored logs for the issues
• Responsible for managing the TFTP logs for the VPN and firewall services and troubleshoot the VPN tunnel issues like SA, RSA, ISAKMP encryption and cleared/refresh VPN tunnel issues
• Setup sniffer traces for the error ports on switches and monitor the issues by mapping them onto sniffer ports and logs on the sniffer
• Used Cisco-Works/solar winds for the tracing of IP address, mac-addresss, ports, servers attached to the various switches
• Troubleshoot the BGP neighbor flapping issues and configures RIP/BGP redistribution, implemented OSPF metric tuning for the internal routing of the vanguard
• Worked on Inconsistent VLAN issues across the IDF 6504/6509 Cisco switches and removed the VLAN across the trunks and implemented Rapid Spanning tree from STP

BIP-IP F5 Implementation

• Worked on F5 LTM, GTM series like 6400, 6800, 8800 for the corporate applications and their availability
• Involved in iRule management like loading rules, writing iRule syntax using TCL language and iRule extension to TCL
• Hands on Experience testing iRules using Browser(IE), HTTP watch, curl, Scripts(shell/batch file/perl) and host files
• worked on content routing requests, generate a SSL certificates, load configurations and creating DNS entries
• Dealt with creating F5 VIP(virtual servers), pools, nodes and applying iRules for the virtual servers like cookie persistency, redirection of the URL
• Proficient knowledge in (TMOS) Traffic management operating system of BIP IP followed by Packet-by-packet architecture to full proxy architecture

Confidential,Warren, New Jersey Jan\'10 –Mar’11
Network Engineer
Responsibilities:

• Worked on MPLS architecture and its implementation for the Citi Financial branches all over the US and Canada and worked on their IP subnet issues
• Designed MPLS VPN and QoS for the architecture for the CitiFI group using Cisco multi layer switches
• Cisco IOS experience on 3600/7200 class hardware in complex WAN environment and experience on Cisco OS and IOS on CAT6500 in a complex data centre environment
• Hands on experience installing Sup720 for Cisco 6509-E series and its Gigabit Ethernet port deployment in the core network
• Experience in configuring routing protocols like EIGRP,RIP v2, OSPF & BGP and Cisco ACS protocols like RADIUS and TACACS
• Coordinated with senior engineers with BGP/OSPF routing policies and designs, worked on implementation strategies for the expansion of the MPLS VPN networks
• Involved in IP Quality of Service (QoS) implementation including Priority and Class-Based Weighted Fair Queuing, IP Precedence, DiffServ
• Hands on experience with Cisco 3500, 3750, 4500, 6500 series equipment and configuring and deploying from the scratch and fixing them with various modules like Gig card ,VPN SPA Card,T1-WIC card and other modules
• Experience in deploying EIGRP/BGP redistribution and the changing the metrics for the primary and backup paths for the packet prioritization and EIGRP tuning
• Experience on a mesh 6500 and 5500 series routes and switches to support the core trading system. Involved in designing data communications and networks utilizing that utilize a mixture of frame relay, point to pointT1, T3 & OC3 lines
• Involved in designing and applying QOS and policy MAP QOS to WAN to 2800 series routers for all the branches
• Worked on Riverbed devices for WAN bandwidth Optimization in the data centers for the sensitive market data applications
• Worked on Netscout and Sniffer traces of the packets for finding the loop holes in the network and improved the resources like bandwidth, Round trip time, and availability
• Understanding of IPSEC & GRE tunnels in VPN technology implementation using Cisco IOS and have checkpoint firewall /VPN

Confidential, Jersey city, NJ Sep’09- Dec’09

Responsibilities:

• Involved in Cisco router and switch administration, familiar with enterprise level Cisco switches such as 6500, 4500, 3750,2900 series Catalyst and 7200,3800, & 2800 routers
• Experience in routing protocols like OSPF, BGP, and standby protocols like HSRP and VRRP application in the routers
• Designed VLAN’s, access lists (ACL), troubleshooting IP addressing issues and Updating IOS images and other hardware installations
• Experience in troubleshooting VLAN, STP (Spanning tree protocol), & Switch Trunk and IP subnet issues
• Dealt with NAT configuration and it’s troubleshooting issues related access lists and DNS/DHCP issues within the LAN network
• Involved in Configuration of Access lists (ACL) on checkpoint firewall for the proper network routing for the B2B network connectivity
• Provisioning and troubleshooting Ethernet services, Gigabit networks and Connectivity issues with WAN types (T1, E1, DS3, and Frame relay) data circuit debugging

VOIP Migration Project

• Involved in migrating Lehman’s Branches to centralized VOIP platform that will replace the existing Stand alone phone system
• Cisco router 3745 series and switch series 3560 are used to support to add VLAN\'s to all the routers and switches to support the VOIP phones
• Worked on Avaya Gateway equipment is added to the network to support the ports from Cisco Switches across the network
• Assisted in migration of centralized voice mail system based on Cisco Unity connection and support interfacing of legacy TDM PBX of the sited in voice network system
• Familiar with H323 IOS gateways and SRST telephony design and implementation and call manager deployment in the voice network
• Hands on experience on implementation and troubleshooting of ACL\'s and QoS for the networks
• Involved in supporting voice infrastructure including call routing the voice gateways and its troubleshooting methods
• Worked on updating CATOS for that switches and IOS for the routers to support the VOIP stand alone system for 6500 Multi-layer switch and 3500 switch series.
• HP Openview, SNMP network node manager is used to monitor the network and in the times of green zones and DMZ zones

Confidential,London, UK Jun’07 – Aug’09
Network Design Engineer
Responsibilities:

• Experience in testing and designing with EIGRP, OSPF, IS-IS and BGP routing protocols and the multiple areas and Autonomous systems of OSPF and BGP
• Supported channelization using protocols like (PoS),PPP,HDLC, Frame relay, ATM, Inverse multiplexing over ATM and broadband support over PPPoX
• Worked on BGP multi-homing issues and HSRP routing troubleshoot for the CER routers and PER routers and involved in testing router series 6500 & 7500 for developing its features
• Experience in implementation, support and trouble shooting of VLAN’s including operational knowledge of spanning tree protocol (STP), VLAN trunking, inter VLAN routing and ISL/802.1q
• Involved in designing a MPLS network liaising with other ISP’s and part of the network team for IP deployment.
• Testing and troubleshooting of layer1 circuit and layer 2 devices and WAN connections establishment and protocol debugging
• Experience in WAN connectivity using Cisco routers by using T1, T3 and frame relay connections and the its troubleshooting issues.
• Monitor the ticket queue for incoming tickets, Update tickets in accordance to Service Level Agreement requirements and, escalate based on severity levels using Remedy
• Troubleshooting of Routers, Installing and Configuration of Cisco Multi Layer Switches like 3550
• Configuration and troubleshooting of Port Channel VLAN’s and Inter VLAN routing, CISCO, and Spanning Tree configuration and Trunking with 802.1q
• Worked and troubleshoot on the Cisco routers like 2500, 2600 and 3600
• Have knowledge and worked on switches like 1900, 2900, 2950 and 3500XL

Confidential, UK Feb’06 –May’07
Network Support Engineer
Responsibilities:

• Involved in designing VPN architecture with IPSEC, VPN-Services, RADIUS-Servers, IP-addressing and IAS log viewer of the end user
• Deployment of OSPF dynamic routing NOC engineering network routers, previously running RIP and Static routes
• Closely monitor VPN service functionality based on two Cisco PIX 525 Firewalls and VPN accelerator card for high speed services
• Monitoring the Network condition using SNMP protocol about the WAN connection, Switch status, printer server, and controlling projectors and other equipment remotely and used FIX protocol for finance transactions
• Have good theoretical knowledge on QOS with queuing like WFQ, WRR and DWRP and Multicasting
• Deployment of OSPF dynamic routing in the network routers, removal of old RIP routing and static route environment
• Worked on IGRP and EIGRP implementations for client on global locations and interacting with them about the circuit status Bet365, Stoke-on-Trent, UK Feb’05-Jan’06 Infrastructure Operations Engineer
• Provide Technical support to end-user either through remote management or onsite based on the requirement.
• Installation of windows active directory for the creation of users and groups and assigning policies based users application
• Hands on experience on Windows server installation components like DNS,DHCP, Active directory and ISA application for load balancing on the servers
• Familiar with Remedy trouble ticketing system and the escalation of issues from level 1 through level 3 assignment in the NOC operation
• Trouble Shoot routers, Testing Data Circuits E1, ISDN lines,
• Using Local Management Interface (LMI) involved in monitoring VC’s (Virtual circuits) status and network congestion using FECN and BECN for Frame rely topology
• Experience on configuration of routing protocols like EIGRP, OSPF multiple areas
• Network monitoring of LAN/WAN using tools like snort, snortsnarf and ping tools.
• Maintenance of Cisco AAA server database and deployed AAA authentication, authorization and accounting to all Cisco devices

Education:

B.E (hons) Computer Science