SUMMARY

• 8 years of IT experience in design, development, implementation, troubleshooting and maintenance of complex Network & Security devices, Network Security, Linux Kernel Programming.
• In - depth Cisco technology experience/knowledge in design, implementation, administration and support.
• Strong hands on experience in installing, configuring, and troubleshooting of Cisco 7600, 7200, 3800, 3600, 2800, 2600, 2500 and 1800 series Routers, Cisco Catalyst 6500, 4500, 3750, 2950 and 3500XL series switches.
• Expertise in network protocols, Firewalls and Communication Network design.
• Working knowledge of frame relay, MPLS services, OSPF, BGP and EIGRP routing protocols, NATing, sub-netting, also including DNS, WINS, LDAP, DHCP, http, HTML, HTTPS, TCP/IP, UDP, SNMP, OSPF, RIP, IPSEC, PPTP, VLAN, STP (Spanning tree Protocol), RTSP & Multicasting protocols.
• Advanced knowledge of OSI model, TCP/IP, Internet technologies, system security, firewall infrastructure, network architecture and Cisco network routing / switching (Layer 2 and 3) experience, including LAN and WAN, design and implementation which includes Layer 1 to Layer 7 experience
• Designing, Implementing and Troubleshooting Cisco 3750, 3550, 3560, 2924, 6509-V-E, 6513, 6504, 6503, 6506, 6500 series switches
• Also prepared documentation for various Vlans and Voice subnet works and worked on Visio for the same
• Experience working with Cisco Nexus 2148 Fabric Extender and Nexus 5000 series to provide a Flexible Access Solution for a datacenter access architecture Expertise in installing, configuring and troubleshooting Juniper EX Switches (EX2200, EX2500, EX3200, EX4200, EX4500, EX8200 series
• Expertise in installing, configuring and troubleshooting Juniper Routers ( E,J,M and T-series)
• Experience with design and implementation of Virtual Switching System (VSS)
• Enterprise Routing experience using protocols RIP v1 & 2, EIGRP, OSPF and BGP
• Worked on Load Balancer F5 LTM, GTM series like 6400, 6800, 8800 for the corporate applications and their availability
• Proficient with network hardware and technologies including routers, switches, firewalls, Ethernet, Fast Ethernet, Gigabit Ethernet, Frame Relay and Wireless devices.
• Experience in configuring Cisco routers to perform functions at the Access, Distribution, and Core layers.
• Hands on experience on Zone Based firewall and Proventia MX 1004 firewalls.
• Proficient with Cisco ASA 5500 series firewall.
• Good domain knowledge in Linux source code 2.6x & Shell scripting
• Network security including NAT/PAT, ACL, VPN Concentrator.
• Well Experienced in configuring protocols HSRP, GLBP, VRRP, ICMP, IGMP, PPP, HDLC, PAP, CHAP, and SNMP.
• Designing, Implementing and Troubleshooting Cisco Routers (2800,2900,3900,3800,7600) using Static, RIP, IGRP, OSPF, EIGRP & experience with Checkpoint, Cisco PIX & ASA devices
• Well experienced in configuring gateway redundancy protocols like HSRP, GLBP, PPP and SNMP.

TECHNICAL SKILLS

Network Configuration: Advanced switch/router configuration (Cisco IOS access list, Route redistribution/propagation).

Cisco Routers: Cisco GSR 12416, 12418, Cisco 7200vxr, Cisco 3640, Cisco 3600

Redundancy and management: HSRP, RPR, NSF/NSR

Physical interfaces: Fast Ethernet, Gigabit Ethernet, Serial, HSSI, Sonet (POS)

Layer 2 technology: VLAN, VTP, VMPS, ISL, dot1q, DTP, Spanning-tree, PVST

Layer 3 Switching: CEF, MLS, Ether Channel

QOS: CBWFQ, LLQ, WRED, Policing/Shaping.

Switches: Catalyst 6500, MSFC, MSFC2, 7600, 3700, 3500

Routing Protocols: IGRP, EIGRP, OSPF, BGPv4, MP-BGP

WAN Protocols: HDLC, PPP, MLPPP

Circuit switched WAN: T1/E1 - T3/E3/OCX (Channelized, Fractional & full).

Packet Switched WAN: ATM, FRAME RELAY, MPLS VPNs

Security Technologies: Cisco FWSM/PIX/ASDM, Nokia Checkpoint NG, Juniper SRX

Operating Systems: Microsoft XP/Vista/7, UNIX, Linux(Redhat, OpenSuse, Fedora) Windows Servers 2003/2008, Windows MS-Office.

PROFESSIONAL EXPERIENCE

Confidential, Sterling, VA

Sr Network Engineer

Responsibilities:

• Configuring RIP, OSPF and Static routing on Juniper M and MX series Routers
• Configuring VLAN, Spanning tree, VSTP, SNMP on EX series switches
• Design and configuring of OSPF, BGP on Juniper Routers and SRX Firewalls.
• Responsible for turning up BGP peering and customer sessions, as well as debugging BGP routing problems.
• Dealt with implementation of deployment related to Cisco devices and applying security policies on it.
• Troubleshoot issues related to VLAN, VLAN Trunking, HSRP failovers, related issues.
• Planning for upgrade of IOS on devices and performing the upgrade.
• Assisted in the architecture, evaluation and recommendations related to purchasing and installing hardware, software related to IP Networking.
• Responsible for maintaining the entire Routing and switching domain across the campus / Branch to head office and also the Layer-2 campus network across the remote branches which included configuring VLANs And Trunks, Spanning Tree protocol, Port-Security, VLAN-MAPs and DOT1X for Switches and Wireless.
• Monitored network traffic and developed capacity planning initiatives, making necessary recommendations additional resources or hardware.
• Network security including NAT/PAT, ACL on ASA Firewalls.
• Understand the JUNOS platform and worked with IOS upgrade of Juniper devices
• Worked on Juniper devices like SRX 240 and 550.
• Installation and trouble-shooting of LAN, WAN & Multilayers Switching.
• Ensure all devices are running with latest IOS/ JUNOS along with tacacs passwords.
• Good knowledge with the technologies VPN, WLAN and Multicast.
• Worked on ACE load balancers. Experience with F5 load balancers - LTM, GTM series like 6400, 6800, 8800 for the corporate applications and their availability.
• Involved in design and deploying various network security & High availability products like Cisco ASA and other security products.
• Experience working with Nexus 7010, 5020, 2148, 2248 devices.
• My responsibilities also include writing and executing Test Plan, Desk level procedures and Test Case
• Documents for smooth network operations.
• Configured Juniper MX480s, EX8200s, EX4500s, EX4200s, and SRX5800s from scratch to match design.
• Has a good experience working with the Trouble Tickets on F5 Load balancers.
• Switch experience includes Cisco Catalyst switches: CISCO 3750, 4500, 6500 series switches.
• Managing enterprise BGP setup by configuring and troubleshooting BGP related issues.
• My responsibility was also to add new BGP peers for remote branch offices and business partners. Scaling of IGP and BGP in the core.
• Worked on checkpoint provider R71, R75, R77.1, R77.30 GAIA and secured policies and blocked websites using URL filtering, application identification and threat prevention.
• Experienced with Juniper: EX-2200, EX-4200, EX-4500, MX-480 and M Series, SRX210 and SRX240.
• Has done the Configuration on BIG IP (F5) Load balancers and also monitored the Packet Flow in the load balancers.
• Extensive experience taking copy of Cisco IOS on TFTP server and loading back on routers and switches.
• Best practice implemented on Cisco & Juniper routers and switches.
• Worked as part of a team to manage Enterprise Network Infrastructure as a Tier 3 Support Engineer.
• Involved in Configuring and implementing of Composite Network models consists of Cisco7600, 7200, 3800 series and ASR 9k, GSR 12K routers and Cisco 2950, 3500, 5000, 6500 Series switches.
• Configured networks using routing protocols such as RIP, OSPF, BGP and manipulated routing updates using route-map, distribute list and administrative distance for on-demand Infrastructure.
• Designing and Implementation of (LAN) VLANs, VTP, Spanning Tree (STP), Trunking (dot1q and ISL) and Ether channel
• Administration of ASA firewalls in the DMZ and FWSM in the Server Farm to provide security and controlled/restricted access.

Confidential, Houston, TX

Network Engineer

Responsibilities:

• Experience with moving data center from one location to another location, from Cisco 6500 based data center to both Cisco 6500 & Nexus based data center
• Experience with configuring Nexus 2000 Fabric Extender (FEX) which acts as a remote line card (module) for the Nexus 5000
• Dealt with creating VIP(virtual servers), pools, nodes and applying I Rules for the virtual servers like cookie persistency, redirection of the URL
• Successfully installed Palo Alto PA 3060 firewalls to protect Data Center and provided L3 support for routers/switches/firewalls.
• Configured and maintained IPSEC and SSL VPN's on Palo Alto Firewalls
• Configuration & troubleshooting L3 switches with VLAN, STP, SPAN, ETHERCHANNEL, HSRP, VRRP & GLBP.
• Configured and maintained IPSEC and SSL VPN's on Palo Alto Firewalls.
• Implement changes in configuration as per task assigned within scheduled change window and ensure backups of device before and after the change.
• Co-ordinates with Vendors to replace the faulty hardware like power supply, fans, modules, cables, sfp & access points
• Dealt with monitoring tools like (Solar Winds, Cisco Works), network packet capture tools like Wireshark.
• Demonstrated topics of CISCO switching & routing to team as per training sessions.
• Implemented configuration scripts and necessary changes on switches & routers as per the requirements.
• Extended support on access layer, distribution layer and core layer devices as assigned.
• Extending end to end network support on L2 and L3 switches.
• Implementation and Configuration ( Profiles, I Rules) of F5 Big-IP LTM-6400 load balancers
• Installation and Configuration of Cisco Catalyst switches 6500, 3750 & 3550 series and configured routing protocol OSPF, EIGRP, BGP with Access Control lists implemented as per Network Design Document Experience configuring VPC, VDC and ISSU software upgrade in Nexus 7010
• Experience in Configuring, upgrading and verifying NX-OS operation system with OSPF, BGP
• Troubleshooting of complex LAN/WAN infrastructure that include routing protocols EIGRP, OSPF & BGP, MPLS
• Configure / Troubleshoot CISCO 12000, 7500, 3800 series routers and 3560 series switch for LAN/WAN connectivity.
• Implemented Access lists and policy mapping onJuniperrouter installed in each branch across all the states.
• Experience in working with TCL/TK scripting
• Involved in design and implementation of Data Center Migration, worked on implementation strategies for the expansion of the MPLS VPN networks
• Experience working with ASR 9000 series switches with IOS-XR
• Experience with configuring F5 LTM 8950, 6900, VIPRION 2400 models.
• Experience working with design and deployment of MPLS Layer 3 VPN cloud, involving VRF, Route Distinguisher(RD), Route Target(RT), Label Distribution Protocol (LDP) & MP-BGP
• Responsible for Checkpoint firewall management and operations across our global networks.
• Using TL1 language to manage optical (SONET) and broadband access infrastructure
• Worked on different phases of testing such as Sanity Testing, Functionality Testing, Smoke Testing, System Testing, Installation Testing, Compatibility Testing, Regression Testing, Stress Testing and UA Testing.
• Experience converting Cat OS to Cisco IOS on the Cisco 6500 switches
• Actively involved in Switching technology Administration including creating and managing VLANS, Port security- 802.1x, Trucking 802.1Q, RPVST+, Inter-VLAN routing, and LAN security on Cisco Catalyst Switches 4507R+E, 6509-E and Cisco Nexus Switches 2232, 5596, 7009.
• Tested various networks which works on the protocols like of TCP/IP (IP, TCP, UDP, SNMP, DNS, DHCP, FTP, HTTP, HTTPS, ICMP, SMTP, ARP, IPSEC, NAT).
• Writing Test cases & Test scripts for the application functionality
• Testing routers and modems, troubleshot issues related to broadband technologies for Residential and Business Customers.
• Serve as part of a team of network engineers responsible for base wide network upgrade from Cisco Layer 3 Catalyst switches to Juniper Layer 3 EX4200 & EX3200 switches.
• Design, implement and administer IPv4/IPv6 enterprisenetworkinfrastructure utilizing Juniperrouters.
• Worked on Juniper MX 480, MX960.

Confidential, Buffalo grove, IL

Network Engineer

Responsibilities:

• Configured STP for loop prevention on Cisco Catalyst Switches
• Configured VTP to manage VLAN database throughout the network for Inter-VLAN Routing.
• Worked in setting up inter-vlan routing, redistribution, access-lists and dynamic routing.
• Involved in configuring and implementing of Composite Network models consists of Cisco 3750, 2620 and, 1900 series routers and Cisco 2950, 3500 Series switches.
• Implemented various Switch Port Security features as per the company’s policy
• Configured RIP, and EIGRP on 2901 and 3925 Cisco routers.
• Configured VLANS to isolate different departments
• Troubleshoot issues related to VLAN, VLAN Trunking, HSRP failovers, related issues.
• Configured IPSEC VPN on SRX series firewalls
• Design, installation and troubleshooting networks with hand-on experience with OSPF, ISIS, BGP, VPLS, Multicast, VPN, MPLS, & Traffic engineering.
• Provided technical support for expansion of the existing network architecture to incorporate new users.
• Worked on Juniper MX240 and MX480
• NetworkSecurities withJuniperSRX firewalls.
• Network layer tasks included configuration of IP Addressing using FLSM, VLSM for all applications and servers throughout the company
• Involved in Local Area Network (LAN) design, troubleshooting, and maintenance as per company’s requirements.
• Involved in implementation of trunking using Dot1Q, and ISL on Cisco Catalyst Switches
• Worked with snipping tools like Ethereal (Wireshark) to analyze the network problems.
• Maintenance and troubleshooting of network connectivity problems using PING, Trace Route.
• Performed replacements of failed hardware and upgraded software
• Performed scheduled Virus Checks & Updates on all Servers & Desktops.
• Implementing Routing and Switching using the following protocols; IS-ISOSPG, BGP onJuniperM series routers.
• Used TFTP server to backup Cisco configuration files.

Confidential, MC Lean, VA

Network Engineer

Responsibilities:

• Worked in Configuration and extension of VLAN from one network segment to other segment between different vendor switches (Cisco, Juniper)
• Provided Technical support in terms of upgrading, improving and expanding the network.
• Hands-on experience on Checkpoint Firewall R77 and Cisco ASA 5520 firewalls.
• Providing technical security proposals, detailed RFP responses, security presentation, installing and configuring ASA firewalls, VPN networks and redesigning customer security architectures.
• Project to migrate/re-design 700+ customer connections (MPLS & Frame) out of retired
• Data center to newJuniperM120.
• Manage and coordinate all infrastructure related moves, adds, and changes.
• Implement, and maintain Local/Wide Area Network over 13 branches.
• Configured RIP, OSPF and Static routing on JuniperM and MX series Routers.
• Configuration of NAT.
• Design and implement Catalyst/ASA Firewall Service Module for various LAN’s.
• Key contributions include troubleshooting of complex LAN/WAN infrastructure that include routing protocols EIGRP, OSPF & BGP.
• Experience in creating multiple policies and pushing them in to Checkpoint Firewall (Gateways) and hands on experience in managing the Checkpoint Management Server.
• Configured Client VPN technologies including Cisco’s VPN client via IPSEC.
• Experience deploying BIG-IP F5LTM Load Balancers for load balancing and traffic management of business application.
• Configure switch VLANs and inter-switch communication. Build and setup network Laboratory.
• Actively involved in troubleshooting on network problems with Wireshark, identifying and fixing problems.
• Time to time upgrade network connectivity between branch office and regional office with multiple link paths and routers running HSRP, EIGRP in unequal cost load balancing to build resilient network.
• Configured network using routing protocols such as ISIS, RIP, OSPF, BGP and troubleshooting L2/L3 issues.
• Configuring ACL to allow only authorized users to access the servers.
• Maintain effective communications with vendors, peers and clients in resolution of trouble-tickets, equipment
• RMAs, and support requests.
• Troubleshoot Hardware,CiscoIOS, install and configureCiscorouters and switches.
• Participated in on call support in troubleshooting the configuration and installation issues.
• Installation, Maintenance, Troubleshooting Local and Wide Areas Network by using ISDN, Frame relay, DDR, NAT, DHCP and TCP/IP.