SUMMARY

• 8.5 years of experience in Network Engineering and Maintenance Experience in designing, installing, configuring and maintenance of Enterprise Networks using Cisco and Juniper routers and Switches.
• Expertise in implementing and troubleshooting complex layer 2 technologies such as VLAN Trunks, VTP, Ether channel, STP & RSTP.
• Experience in installing and maintaining network monitoring tool IBM Tivoli & network analyzers like Wire shark.
• Experience in Configuration and Support of Cisco Switches (Layer 2, Layer 3 and Multilayer).
• Implementation Engineer of Large Scale Networks / LAN & WAN Technologies.
• Network Design, Integration and Troubleshooting Specialist.
• Advanced TCP/IP and its related routing protocols (RIPv1, RIPv2, IGRP, EIGRP, OSPF & BGP).
• Cisco Router Configuration, Installation and Maintenance.
• Cisco 1900, 2900, 3560, 4000, 4500 and 6500 switching platforms using Cisco IOS and CATOS.
• Cisco 1600, 1700, 1800, 2500, 2600, 2800, 7200, 7500, 10000, 12000 router platforms using Cisco IOS.
• ATM - Frame Relay Internetworking MPLS (AVPN & NVPN) and VRF.
• Circuit Test & Turn-Up of T-1, DS-x, Frame Relay to ATM Service (FRATM) and VCC/VPC circuits.
• Juniper Network and Security Manager (NSM) and NetScreen-5GT Routers.
• Network Management Systems Net view 6000, HP Open view, Cisco Works, What’s up Gold.
• Microsoft Windows OS - WIN 95, 98, ME, NT, 2000, XP, Windows 7.
• Microsoft Office Suites - Office 97, Office 2007, Office 2010, Visio 2010.
• Network Operations and Data Center support experience with nationwide user base for major oil company.
• Strong hands on experience in installing, configuring, and troubleshooting of Cisco Catalyst 6500, 4500, 3750, 2950 series switches, Cisco 7600, 7200, 3800, 2600, 2500 and 1800 series Routers.
• Having Knowledge working with Juniper: EX4200, EX4500, MX480, MX240, MX960, M Series Routers and SRX Firewall.
• Expertise in configuring Big-IP F5 LTMs (virtual servers, I Rules, pools, SNATs, health monitors) and Citrix NetScaler’s for managing the traffic and tuning the load on the network servers.
• Experience on load balancing strategies/techniques, expertise in application switching/traffic management, knowledge of persistence and SSL certificates.
• Having Knowledge working with Nexus 7010, 5020, 2148, 2248 devices.
• Experience in designing IP addressing structure, subnetting, VLSM.
• Implementation of HSRP, VRRP for Default Gateway Redundancy.
• Worked on Securitypolicy review and configuration in Palo Alto, Cisco ASA & Juniper SRX.
• Extensive experience on Static Routing, RIP, EIGRP, OSPF, BGP.
• Experience in QOS and MPLS VPNs.
• Experience with Putty & Securecrt.
• Highly motivated to solve problems, interests in R&D work areas.
• Expertise in mentoring, one-on-one training and customer interaction skills.
• Excellent communication and interpersonal skills.

TECHNICAL SKILLS

Routed Protocol: (TCP/IP).

Layer2 switching technology: LAN, VTP, Spanning Tree Protocol, PVST, PVST+, 802.1q trunking, Ether channel, Q-in-Q tunneling, Private VLAN, SPAN/RSPAN.

Switches: (3750, 3550, 3560, 2900, Cat6500, Nexus 7K, 5k, 2k, EX4200, EX4500).

IPv4 Routing Protocol: (BGP, OSPF, EIGRP, IGRP, RIP, IS-IS, Default Routing, Static Routing).

Routers: (Juniper MX series, M Series, Cisco 12000, 7600, 7200, Terminal Servers 2511, 2509).

Juniper: EX2200, EX4200, EX4500, MX480, M Series, SRX240, SRX1500, SRX3600.

Network Security: Juniper SRX, FWSM, Cisco ASA 5540, Palo Alto, checkpoint, ACL, IPSEC

Load Balancer: F5 Networks (Big-IP) LTM 6400, 1600, GTM, Citrix Netscalers.

LAN: Ethernet, Fast Ethernet, Gigabit Ethernet

WAN: PPP, HDLC, Channelized links (E1/T1/E3/T3), Fiber Optic Circuits, Frame Relay.

AAA Architecture: TACACS+, RADIUS, Cisco ACS Network Management Wireshark, SNMP.

Monitoring Tools: IBM Tivoli, HP open Map.

Operating Systems: Windows (98, ME, 2000, X P, Server 2003/2008, Vista).

PROFESSIONAL EXPERIENCE

Confidential, Addison, TX

Senior Network Engineer

Responsibilities:

• Worked on WAN connectivity requests on a regular basis both Tickets and Incidents through Change Management system(CMS)
• Experience in setting up Juniper routers like MX960, Mx480 and Nexus 7k. Also worked on JUNOS/IOS/IOS-XR software upgrades.
• Managed cutovers of multiple store locations each night with the installation of ASA 5525, 3560 & 2960 switches.
• Providing instruction to technicians, configuration and network device validation, troubleshooting and tracking outstanding issues for each store.
• Turn-Up and Validate of enhanced Cisco Wireless utilizing 2951 Router with integrated WLC and AIR-CAP3602 APs.
• Provided several key validation steps and input to processes for development.
• Worked as Company Wide Area Network On call support.
• Experience worked on Load balancers (F5). Setting up VIPs to load balance multiple web applications, certificate bindings.
• Worked on managing Carrier based MPLS WAN Network build using Sprint, Verizon and AT&T circuits TACACS Server Migration.
• EOL router/switch replacements. Traffic migrations from old layer 2 ATM, Frame Relay circuit to layer 3 MPLS circuits. Also worked on replacing oc3, oc12, oc36 with 1Gig and 10GMPLS circuits.
• Experience in building Service provider grade MPLS network using layer 2 VPLS service from Level 3/TW and Verizon, P-nodes, PE’s, Route reflectors builds.
• Experience in building layer 3 VPN, layer 2 pt-2-pt and VPLS instance build on the company’s MPLS cloud and worked on Customer/Vendor connectivity to NAT and FW based on the requirement.
• Implemented WAN router migrations from Cisco 3945 to Juniper MX5’s.
• Extensive Knowledge on troubleshooting Network issues like asymmetric routing, Network latency and FW related issues.
• Planning WAN capacity based on the traffic patterns pulled from HPNA, CA Spectrum.
• Conducting training sessions for NOC and handing over responsibility and assisting them when needed.
• Tracked spare, bulk project inventory used to support networking environment.

Confidential, Merrimack, NH

Network Engineer

Responsibilities:

• Tested various BGP features like local-preference, MED, Weight and replicated customer issue problems in the testing environment lab.
• Create modifyswitch and router configurationsfor variety of Cisco platforms.
• Provide daily Network Support for medical staff, medical equipment and vendors.
• Configuring access servers to perform reverse telnet & configuring AAA.
• Experienced with implementing VOIP over wide area networks.
• Designed, developed and managed the NVT (Network validation Testing) plan document.
• Deployed and managed circuits ranging from T-1s and E-1s (MLPPP bundles) to DS-3 and OC-48. Provided support for migration issues on the links from 1G to OC48 and CE-PE link upgrade from OC48 to 10G.
• Responsible for setting up the lab environment for testing the new technology insertions in Voice Aware Network Environment for Voice over IP Service. Provided lab validation environment to recreate field problems.
• Attended Juniper training as WAN design is moving on to Juniper platform. This training enhanced my understanding of Juniper Platform.
• Worked with IXIA test equipment / traffic generator to reproduce problems in the lab, test fixes, etc.
• Experience in Installation and configuring of Cisco 12000, 7613, 7200vxr, 6513 series routers.
• Experience in setting up Juniper routers like M320, MX960. Also worked on JUNOS software upgrades.
• Provided VAN IP address management, aggregation and Subnetting for PEs and VoIP element connectivity’s.
• Experience in writing Deployment Guidelines for CE-PE network connectivity.
• Segregating users into VLANS and configuring trunk links, ether channels, VTP, Tuning STP.
• Implementing Basic / Advance Quality of Service (QOS) features for mission-critical / delay-sensitive traffic, Queuing (FIFO, Weighted Fair Queuing, Priority Queuing, Custom Queuing).
• Class-Based Weighted Fair Queuing (CBWFQ), Weighted Random Early detect (WRED), LLQ, Class-based Policing/Shaping/Marking.
• Worked on Route-Reflectors to troubleshoot BGP issues related to customer route prefixes, BGP route filtering policy problems, ORF etc.
• Worked on troubleshooting issues like Asymmetric routing, load balancing to provide short time and longtime solutions for field escalations.
• Experienced in implementation and troubleshooting knowledge of protocols and technologies, especially in the following: BGP4, OSPF, IPv4, Ethernet and MPLS.
• Worked on troubleshooting customer issues related to MPLS VPN related issues involving PE configuration issues, PE-CE link issues such as routing protocol configuration, Layer1 / Layer2 issues, BGP4 address-family related issues, MP-BGP etc.
• Implemented traffic filters using access-lists.

Confidential, Columbus, Indiana

Network Engineer

Responsibilities:

• Designing, installing, configuring and maintenance of networks using Cisco routers, Catalyst switches, Load balancers and Cisco firewalls.
• Installing, configuring and troubleshooting of Cisco Catalyst 6500 series switches, Cisco 7600, 7200 series routers.
• Performed management and leadership of remote field installation services of third party vendors.
• Worked directly with ATT MIS in turn-up of circuits prior to reconfiguration of Juniper Security devices to provide VPN connectivity via the internet.
• Executed Test and Turn-Up functions for quality control and sign-off from remote properties.
• Worked with Cisco Nexus2148 Fabric Extender and Nexus 5000 series to provide a Flexible Access Solution for data center access architecture.
• Configured VLANs with 802.1q tagging. Configured Trunk groups, ether channels, and Spanning tree for creating Access/distribution and core layer switching architecture.
• Implemented antivirus and web filtering on Juniper SRX240 on the web server.
• Key contributions include troubleshooting of complex LAN /WAN infrastructure that include routing protocols EIGRP, OSPF & BGP.
• Providing daily network support for national wide area network consisting of MPLS, VPN and point-to point site.
• Worked with uploading SSL certificates, creating F5 load balancer.
• Configuring STP for switching loop prevention and VLANs for data and voice along with Configuring port security for users connecting to the switches.
• Worked on the security levels with RADIUS, TACACS+.
• Upgraded the IOS on the 6500 switches and saving the old system configuration and running-configuration.
• Carried out Route-redistribution between different routing protocols like OSPF, BGP, and EIGRP for increased efficiency.
• Responsible for configuring Checkpoint & Cisco Firewall rules for Inbound and outbound network traffic.
• 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 enterprise network infrastructure utilizing Juniper routers.

Confidential, Columbia, MO

Network Security Engineer

Responsibilities:

• Assisted the group with the project move which includes planning, designing, restructuring, building, migrating, consolidating, rack and stack devices, hands-on configuring, upgrading and deploying projects based on the defined needs.
• Partner with technology groups in reviewing and assessing old deployment plans in the build of the new Data center from engineering design, performance, equipment analysis and layout, and cost to make sure that they comply with the budget resource needs and support of the environment.
• Process, track and monitor all Data Center Hardware (servers, storage, backup equipment, network gear) and software purchases and its deliveries.
• Work with technology groups and deployment teams to plan and document strategies of execution without interfering with the organization's day-to-day activities.
• Administer the Cisco CAT 6500/4000/3800/2800/3700 configuration of OSPF/ BGP/ Static protocols, VPN, GRE Tunnels, routing and switching, troubleshooting, reviewing and analyzing traffic flows for each system.
• Experience with Cisco ASA firewall administration, Rule Analysis and Rule Modification.
• Configuring and troubleshooting VLAN, VLAN Trunk, VTP, STP, and Ether Channel, Switch Port Security, DHCP Snooping, Implementing HSRP.
• Implement IPsec Site-to-Site VPN & SSL VPN using CISCO ASA 5500,5515,5520 Series Firewall.
• Maintained and troubleshoot of network connectivity problems using Ping, Trace route and packet analysis tool.
• ASA Configuration, Routed & Transparent mode configuration, Security context, Address Translation, Access Control Lists, Failover (Active-Active and Active-Standby), Security Contexts.
• Configuring Firewall, NAT policies, maintained IDS/IPS & monitoring of health on Palo Alto, Checkpoint, Juniper SRX (1500, 3400, 3600, 5800) firewalls & analysis of firewall logs using various tools.
• Well experienced in document creation with technical configurations,securitystandards design andnetworkdocumentation using MS Visio & office along with ITSecurityAssessments, Risk Assessments.
• NAT and Firewall policy configuration on Checkpoint (R76 Gaia, R75.40, R75 and R70), ASA and Palo Alto Firewalls. Site to site VPN configuration checkpoint firewall ASA and Palo alto Firewalls.

Confidential

System/Network Associate

Responsibilities:

• Working on troubleshooting connectivity problems using Ping, Traceroute.
• Strong knowledge on subnetting of IPv4.
• Generated report on CPU and Memory Utilizations as well as Wan Links Utilization on monthly basis and submit report to respective teams.
• Troubleshooting network connectivity issues between Servers deployed in various datacenters.
• Working and follow-up /pending incidents.
• Escalating the issues to the respective team after level 1 troubleshooting.
• Escalating circuit issues to the service provider
• Worked as part of a team to manage Enterprise Network Infrastructure as a Level 1 Support Engineer.
• Managing and upgrading IOS image files and taking configuration backup.
• Identifying, analyzing and fixing network related issue in the organization.
• Analyze the build documentation, workflow process and KPI requirements.
• Monitor/support the WAN, MAN, LAN, VPN, switches, routers.
• Working on DNS, DHCP Request.
• Having experience using in ciphering as well as cryptingRJ45 Cables.
• Configuration and Implementation of VLANs on Cisco switches.
• Document network problems.