SUMMARY

• Over 8+ years of IT work experience in Network Engineer, Network Administrator, Data and Network Security Engineering.
• Has very strong experience on Cisco routers (1700, 1800, 2600/2600XM, 2800, 2900, 3600/3600XM, 3700, 3800, 7200), switches (2950, 2960, 3550, 3570, 4510R, 6500, MDS 9000 SAN, 5000 NX - OS), VPN concentrators 3000 series, ASA Firewalls (5505, 5510, 5520, 5545, 5585 Series), IDS and IPS (4235, 4250).
• Experience in implementation, configuration & troubleshooting of Ether-channel, STP, RSTP, HSRP, VLAN, VTP and Access Control Lists (ACL).
• Understanding ofLANand WAN Internetworking Devices: Functions of Internetworking, Linking Devices (Repeaters, Bridges, Routers, and Gateways. Configuring, Routing IP Addresses, Subnetting and knowledge of Frame Relay and ATM Switches
• In-depth knowledge and hands-on experience in Tier II ISP Routing Policies, Network Architecture, IP Subnetting, VLSM, TCP/IP, DHCP, DNS.
• In-depth expertise in the analysis, implementation, troubleshooting and documentation of LAN/WAN architecture and good experience on IP services.
• Implemented routing protocols (RIPv1/2, EIGRP, OSPF, BGP), switching (VLANS, VTP Domains, STP) security on devices hardening (authentication, authorization, and accounting).
• Architecture and maintained network security policies on firewalls, VPN devices and remote access technology (client IPsec and SSL VPN).
• Experience in SAN storage and data networks and implemented Fiber Channel and Internet SCSI protocols.
• Strong interpersonal, organizational communication, customer service & presentation skills.
• Excellent customer management/resolution, problem solving and debugging skills with good verbal/written communications and presentation skills.

TECHNICAL SKILLS

Hardware: Cisco Routers 1700, 1800, 2500, 2600, 2800, 3600, 3800, 7200, ASR 1000 series. Cisco Switches 2900, 3500, 4500, 6500, nexus 2K,5K, 7K series.

Routing: BGP, OSPF, EIGRP, IGRP, RIPv2, BGPv4, MP-BGP, Static Routing, Redistribution, Route Summarization

Switching: Ether-channel, STP, RSTP, VTP, VLANs.

Firewalls: ASA (5510,5520,5540,5550,5585)

Redundancy: HSRP, VRRP, RPR, NSF/NSR.

Security: ACLs, NAT, PAT, VLAN, Cisco FWSM/PIX/ASDM/ASA, Palo Alto.

Various Features & Services: TCP/IP, IP Sec VPN, LAN, WAN, IP Subnetting, VLSM, VLAN, Inter-VLAN Routing, Frame-Relay, PPP, HDLC, DHCP, DNS, ICMP, UDP, SNMP.

Operating Systems: CISCO IOS, CAT OS, WINDOWS.

Network Tools: Wireshark, cisco NCM, Zenoss, Netscout, Packet sniffer.

Network Simulators: Packet tracer, GNS3

Documentation: MS Word, Excel, PowerPoint, Outlook, Visio

PROFESSIONAL EXPERIENCE

Confidential, Nashville, TN

Sr. Network Engineer

Responsibilities:

• Responsible for Crossroads rollout LAN/WAN problem determination and diagnosis, provide project leadership (onsite, offsite).
• Working with local IT personnel on troubleshooting, problem determination, diagnosis of performance issues, bandwidth issues, throughput traffic prioritization to improve overall application response time across WAN.
• Install and monitor application traffic using network protocol monitoring tools such as NTOP or wireshark to analyze network usage and bandwidth and run diagnostic programs to resolve problems.
• Participating in the design and planning aspects of the network infrastructure that is installed in the new building and testing of the internal network infrastructure in the new building, and troubleshooting and remediating any issues.
• Worked on MPLS for redirecting data from one network node to another network node based on the shortest paths.
• WAN optimization POC utilizing Riverbed steelhead, silverpeak appliances. Configured and installed devices into pilot sites and production data center.
• Configuration and installation of LAN switches and wireless network infrastructure equipment and cabling all uplink and user network connections.
• Working with the DIRM Networking team and NC FAST IT staff to review current VLAN configuration, IP routing and firewall access control for existing networks, and applying the necessary network and security access rules to the installed equipment.
• Worked withnetwork services like DNS, DHCP, DDNS, IP4, IP6, IPSec, VPN etc.
• Worked with F5 network-Load balancers in configuring VIPs AND POOLS.
• Deployed Cisco Catalyst 6500, 4500, 3750, 3850, 3560, 2960 (Layer 2 through 7).
• Deployed and configured Cisco ASR 1000, 7000 series routers and ISR 2800, 3800 series routers.
• Experience in working with Nexus OS, IOS, CATOS and Nexus 7K, 5K & 2K Switches .
• Have experience and worked with configuring session persistence and web services..
• Worked with Cisco ASA 5500 series firewalls with current and demonstrated expertise with ACL security in a multi-VLAN environment.
• Worked with Firewall DMZ zones and configuring them.
• Worked and performed troubleshooting, implementing, optimizing and testing of static and dynamic routing protocols such as EIGRP, OSPF, and BGP. Ability to interpret and resolve complex route table problems.
• Experience with Security- Firewalls, NAT / PAT, IPSEC, S2S.
• Good working knowledge of providing high level support for different firewall and IPS platforms.
• Provided support for the infrastructure of various firewall and IPS platforms and also be able to help with the good documentation help for those platforms.
• Knowledge of with API’s for troubleshooting Network issues using Wireshark and NTOP.
• Configuration of static NAT, dynamic NAT and dynamic NAT overloading.
• Configured and perform trouble shooting on Dell Power Connect Switch 5548 used to connect VM Servers and Flex Systems.
• Worked with Infoblox for secure DNS, DHCP and IPAM.
• In-depth expertise in the implementation, optimization, troubleshooting and documentation of LAN/WAN networking systems.

Confidential, Dallas, Tx

Network Engineer

Responsibilities:

• Hands on technical experience configuring, installing, maintaining and troubleshooting Cisco routers, switches, Load Balancers and F5.
• Proficient in troubleshooting F5 load Balancer related issues.
• Strong technical experience in configuring, maintaining of complex LAN/WAN infrastructure and troubleshooting various routing protocols including BGP, EIGRP, and OSPF.
• Provided complex technical consulting with clients, which identified and specified business requirements and processes that would affect their day-to-day tasks.
• Design, installation, and configuration of Cisco routers and Switches
• Configuration of layer-2 Spanning tree protocol and layer-3 dynamic routing protocol like OSPF, EIGRP, and BGP.
• Experience with Layer 2 network concepts including spanning tree, VPC, and VLAN design.
• Configured MPLS L3 & L2 VPNS for Customer Connectivity.
• Worked with static NAT, dynamic NAT, TCP overload distribution, Overlapping Address Translation
• Configuration of VLAN, VTP Domain, Root Bridge on various Catalyst switches like 3500, 4500, 6500 series.
• Enhanced performance and better security on network by statically assigning STP Root Bridge, implemented port-fast and bpdu-guard configuration across entire network.
• Designed network connectivity between various offices and data center. Installed and configured routers including 1800, 2600 series along with Cisco switches including 3750 and 6500 series.
• Configuring and troubleshooting Cisco 1800, 1900, 2800, 3800, 3900 series routers and Cisco 2900 and 3500 series catalyst switches.

Confidential, Herndon, VA

Network Engineer

Responsibilities:

• Hands on technical experience configuring, installing, maintaining and troubleshooting Cisco routers, switches, Load Balancers and F5.
• Strong technical experience in configuring, maintaining of complex LAN/WAN infrastructure and troubleshooting various routing protocols including BGP, EIGRP, and OSPF.
• Designed network connectivity between various offices and data center. Installed and configured routers including 1800, 2600 along with Cisco switches including 3750 and 6500.
• Configuring and troubleshooting Cisco 1800, 1900, 2800, 3800, 3900 series routers and Cisco 2900 and 3500 series catalyst switches.
• Thorough understanding of advanced datacenter technologies such as Fabric Path.
• Configuration of layer-2 Spanning tree protocol and layer-3 dynamic routing protocol like OSPF, EIGRP, and BGP
• Creating of Health Monitor and associating them to Pool Members, configuring Virtual Server.
• Creation of Persistence profile and associating it to the pool and Creation of client and server SSL Profile, SSL certificate upload and installation on F5 Load Balancer.
• Getting TCP Dump files from the Load balancer and analyzing them using Wireshark to get to the root cause of the issue.
• Worked on Advanced F5 server and global server load balancing request fulfillment and troubleshooting and correlate detectednetworkevents to identify potential problems or root causes.
• Experience with Layer 2 network concepts including spanning tree, VPC, and VLAN design.
• Configured MPLS L3 & L2 VPNS for Customer Connectivity.
• Worked with static NAT, dynamic NAT, TCP overload distribution, Overlapping Address Translation.
• Designed and implemented an IP addressing scheme with subnets for different departments.
• Managed the LAN Switching Environment including creating and maintaining VLANs, STP, Trunking, Port Security, VLAN Security etc.
• Key contributions include troubleshooting of complex LAN/WAN infrastructure that include routing protocols EIGRP, OSPF & BGP
• Provided complex technical consulting with clients, which identified and specified business requirements and processes that would affect their day-to-day tasks.
• Design, installation, and configuration of Cisco routers and Switches
• Configuration of layer-2 Spanning tree protocol and layer-3 dynamic routing protocol like OSPF, EIGRP, and BGP.
• Creating extensive architecture anddesigndocuments and well aware of and follow existingnetworkmanagement change procedures
• Implementnetworkchange in the context of incident resolution, problem management and service requests.

Confidential, Pleasanton, CA

Mid-level Network Engineer

Responsibilities:

• Design and deployment of Large scale SONET, ATM, and BGP network architecture design.
• Migrated distribution Switches 6509 to Nexus 7010.
• Configuring and troubleshooting MP-BGP Session Between PE Routers
• Installed and configured f5 BigIp to provide Load Balancing for server.
• Working knowledge of leveraging F5 devices for web acceleration and caching.
• Strong understanding of Web traffic load balancing function and manipulation procedures along with sizing and capacity planning based on a high availability.
• Installed and Configured Cisco Routers 1800, 2700, ASR 1K series.
• Actively participated in upgrading fast Ethernet, Layer 3 switched/routed LAN infrastructure from Cisco 3640 to Cisco 2811 ISR routers and switches at access level to 2960, 3750. This project also involved configuring and testing EIGRP and BGP protocols.
• Testing for Functionality and convergence of the network.
• Provided Tier 3 support
• Troubleshoot multi area OSPF and OSPF scale issues
• Configured and Worked on ASA 5510, 5520, 5550, 5585 series firewalls.
• Ability to work independently and also as part of a team, following established guidelines.
• Switches standardization- Includes replacing old switches with standard Cisco 3500 switches, upgrading Cisco IOS/Cat OS on Cisco 3500, modifying switch configuration, adding authentication, logging and SNMP configuration parts.
• 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.
• Worked on routing protocol related issues such as static, RIP, EIGRP(Variance and un equal cost load balancing)
• Worked on issues related to customer access-lists and various security feature

Confidential, South Portland, ME

Network Engineer

Responsibilities:

• Configuring, managing and troubleshooting networks using routing protocols like BGP, RIP, EIGRP and OSPF (Single Area and Multi Area).
• High availability - HSRP, VRRP, ether channel creation on Cisco, switches and routers.
• Worked on Datacenter build and support.
• Install and manage CiscoASA firewall, ASR routers as part of new circuit deployment.
• Primary responsibilities include but not limited to design, implementation and troubleshooting of all LAN/WAN solutions offered by LAN/WAN Professional
• Monitoring alerts and reporting to Global Foundation Services and Microsoft Operation Center
• Involved in migration from Frame-Relay/ATM network to MPLS-based VPN for customer’s WAN infrastructure.
• Configured and resolved various OSPF issues in an OSPF multi area environment.
• Troubleshoot latency and throughput issues on MPLS and Dedicated Internet Access circuits.
• Involved in CiscoIOS XRcode up gradation.
• Transitioned as Network Project Manager and participated in kick off meetings, gathered data from stake holders to create Network design template.
• Worked on Network Acceptance to comply with Microsoft design standard and delivered projects in time after quality check.
• Weekly and daily meetings with clients to understand their network requirements discuss these with management and come up with an action plan.
• Quickly resolve all IP network issues to reduce waste and downtime of a Network infrastructure.
• Experience in ordering new modules and SFPs for the devices to support network expansion.
• Helping Tier I engineers in any of the issues related to various aspects and concerns.
• Interacted with different teams - on developing/ implementing the Onsite Offshore model for 24X7 supports.

Confidential

Network Engineer

Responsibilities:

• Installation and Configuration of LAN/ WAN.
• Worked as an operational support engineer for various WAN problems.
• Supporting an enterprise network for Data Center LAN.
• Implementing fabric path, spine and leaf Data center.
• Design, configuration and Installation of Cisco routers 1800 and 2900 series and catalyst switches 2960 and 4500 series.
• Routing related tasks included providing Cisco router configuration, providing technical support for Cisco Router configurations and installation for Customer.
• Configuring routing protocols like RIP, EIGRP, OSPF and configured HSRP for first hop redundancy and load balancing.
• Switching related tasks includes implementing VLANS, Fast- Ethernet channel between switches.
• Physical cabling, IP addressing, Wide Area Network configurations.
• Validating the forward & backward DNS lookup zones.
• Worked on IPAM request in assigning the IPs to servers and Collect MAC address on production servers.