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Network Engineerresume

Warren, NJ

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

NOC Engineer

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

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