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Sr Network System Engineer Resume

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Tucker, GA

SUMMARY

  • Certified Network Engineer having Eight years expertise across designing, deploying, administrating, maintaining and supporting enterprise Cisco Network Platforms..
  • Experience in Cisco Routing, Switching and Security with strong Cisco hardware/software experiences with Cisco Routers such as 1900,2900, 3900,Cisco ASR - 1k/9k, Cisco Multilayer Switches 4500,6500, Cisco Nexus 2k/5k/7k/9k and Juniper: M320, MX80, MX480, MX960 and EX4200, EX8200 switches.
  • Experience in set up, configuration and management of Cisco ASA Firewall in various domain such as Internet, DMZ, Business-Partner and Remote-Access VPN etc.
  • Experience in creating DAP Policies on Cisco ASA for Remote-access users and Creating IPSEC tunnel on ASA with Business Partner Firewall.
  • Experience in configuring and Troubleshooting BIG-IP F5 load balancer LTM
  • Creating Virtual Servers, Nodes, Pools and iRules on BIG-IP F5 in LTM module.
  • Experience in Layer 3 Routing protocol configurations: RIP, EIGRP, OSPF, BGP, & MPLS.
  • Experience in Layer 2 Routing protocol configurations: ATM/FRAME RELAY,IP services such as QoS and VPN technologies: IPSec & SSL.
  • Implemented MPLS/VPN services for various customers
  • Experience in configuring and troubleshooting vPC on Cisco Nexus-5k for downstream FEX and Servers.
  • Experience in configuring VLANs, STP, VTP, PVST and 802.x authentication in access layer switches.
  • Strong knowledge of HSRP, VRRP Redundancy Protocols in high availability environment.
  • Experience with different Network Management Tools and Sniffers like SNMP, HP-Open view, and Cisco works to support 24 x 7 Network Operation Center.
  • Worked extensively in Designing, Implementing & Managing LAN, WLAN & WAN solutions for different client setups. In-depth knowledge and experience in WAN technologies including T1, T3, ISDN, HDLC, Point to Point, ATM & Frame Relay.
  • Experience in Physical cabling, IP addressing & subneting with VLSM, configuring and supporting TCP/IP, DNS, installing and configuring proxies.
  • Access Control Server configuration for RADIUS & TACACS+.
  • Ability to Install, Manage & Troubleshoot Large Networks & Systems Administration on Windows & Linux platforms in Development, Staging, Lab & Production Environments.
  • Strong Experience in using various tools for management, analyzing, and troubleshooting, monitoring & process automation in Lab & Production environment.
  • Highly valuable Project Management and Operations Planning skills.
  • F5 Load balancer LTM and GTM

TECHNICAL SKILLS

Hardware: Cisco Catalyst Switches (6500, 4500, 3750 PoE series), Cisco Routers (12000, 7600, 7200, 3800, 2900, 1900 series), Cisco 7500/5500/2500 Wireless LAN Controllers, Cisco ASA 5500.

IP Routing: RIP, BGP, OSPF, IGRP, EIGRP, Static Routing, IP Addressing and Subneting, VLSM.

Communication Protocols: TCP/IP, UDP, DHCP, DNS, ICMP, SNMP, ARP, RARP, PPPRedundancy Protocols GLBP, HSRP, VRRP

Topologies: Frame Relay, ATM, Ethernet, Cable Modem, and Wireless.

Switch Technologies: VLANs, VTP, STP, DTP, MLPPP, MPLS, ISL and dot1q.

Cisco Nexus Switches: (2248,2232,5548,5596,7010,7718), Cisco routers (1900, 2900, 3900, 7200, AS, Cisco ASA 5500 series, CSU/DSU’s, network cards, Modems and F5 Network Load Balancer.

Operating System: Windows 2000, 2003, 2008 R2, 2012 Servers, Windows 7, Windows XP, Windows VistaWindows 2000 Professional.

PROFESSIONAL EXPERIENCE

Confidential - Tucker, GA

SR Network System Engineer

Responsibilities:

  • Secure, manage, and document the local area network consisting of a Cisco 2811 router, an FTP Server running Windows Server 2012, multiple wireless routers, and all cisco access switches.
  • Configure network devices including routers, switches, and servers to accommodate company growth and demand while maintaining a high level of security and availability.
  • Apply knowledge of the TCP/IP suite, Cisco IOS, and satellite theory to solve complex networking issues including IP routing protocols, ACLs, VLANs, VPNs, and AAA.
  • Utilize in depth testing procedures to update firmware, apply current security patches, verify functionality of all devices, and test configurations for equipment such as Cisco routers, ASA firewalls, switches, and Windows OS computers.
  • Review, modify, and test advanced network configuration files during the development process of prototype systems to ensure proper functionality before presenting it to the customer for purchase.
  • Designed, validated and implemented LAN, WLAN & WAN solution to suite client’s needs.
  • Migration of servers from one datacenter to another, providing switch connections to the new servers, updating Check point Firewall rules for the new servers, F5 to A10 load balancers Migration.
  • Design OSPF Areas for reliable Access Distribution and for Core IP Routing.
  • Implementing, Monitoring, Troubleshooting and Convergence in Frame-Mode MPLS inside the core.
  • Ethernet network designincluding routing, switching, configuration, performance, and fault tolerance of Servers, Switches, Storage hardware and software architectures.
  • Performed Troubleshooting and monitored routing protocols such RIP, OSPF, EIGRP & BGP.
  • Designing and Implementation of (LAN) VLANs, VTP, Spanning Tree (STP), Trunking (dot1q and ISL) and Ether channel.
  • Provided Load Balancing towards access layer from core layer using F5 Network Load Balancers.
  • Implemented TCP/IP and related services like DHCP/DNS/WINS.
  • Configured and troubleshooting of HSRP on Cisco routers.
  • Working with customers Site-to-Site and Remote Site VPNs using Cisco routers to Cisco routers, ASA Firewall to ASA Firewall, Cisco Router to ASA Firewall and troubleshoot and modify existingVPN.
  • Windows 2000, 2003, 2008 R2, 2012 Servers

Confidential, Bloomington, IL

SR Network Engineer

Responsibilities:

  • Configuring routing protocols OSPF, RIP, MPBGP, LDP and BGPV4
  • Configuring HSRP between VLANs, Configuring Ether-Channels, Port Channel on 6500 catalyst
  • Experience with VPN rules over to the Cisco ASA solution. Migration with both PIX and Cisco ASA VPN experience
  • Network surveys and assessments
  • Design network for upgrades
  • Windows 2000, 2003, 2008 R2, 2012 Servers
  • Logs monitoring, auditing and reporting using IBM QRadar and Splunk.
  • Experience with migration Hybrid based Cisco CatOS and Native Cisco IOS on 6500 switches.
  • Technical Support of Cisco Nexus Switch and Cisco router using different Troubleshooting protocol. Manage Cisco routers and switches, including performing installations, upgrades, configurations and management.
  • Configured OSPF on CISCO devices with multiple routing processes and redistributed them. Tested and hands n experience in multi area OSPF topologies.
  • Experience with design and implementation of Data center migration
  • Data center migration was involved in Access, Distribution and Core layers.
  • Configured various BGP attributes such as Local Preference, MED, Extended Communities, Route-Reflector clusters, Route-maps and route policy implementation.
  • Switches Replace branch hardware with new 2851 routers and 2960 switches.
  • Convert Branch WAN links from TDM circuits to MPLS and to convert encryption from IPsec/GRE to GetVPN.
  • Responsible for Securing networks with Cisco ASA 5500 series firewalls and transitioning networks from Cisco PIX series firewalls.
  • 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 2950, 3550.
  • Configuring Vlan’s, VTP’s, enable trunk between switches.
  • Configured VLANs with 802.1q tagging. Configured Trunk groups, ether channels, and Spanning tree for creating Access/distribution and core layer switching architecture.
  • Configuring and troubleshooting CISCO catalyst 6509, 7609, 7613 with Supervisor cards, Cisco 3640, Cisco GSR 12416,21418(with PRP and RPR processors)
  • Wrote IOS and CAT OS upgrade procedures and Pre/Post checks for customer production upgrades.
  • Excellent Troubleshooting Skills and Customer Centric approach
  • F5 Load balancer LTM and GTM

Confidential, Pittsburgh, PA

Firewall Engineer

Responsibilities:

  • Designed, installed and maintained a complex routed LAN/WAN infrastructure in West Virginia supporting Dial-up, T1, Frame Relay, ISDN and 802.11b.
  • Configured and installed routers, switches and LWAP at the client’s data center and different IDFs.
  • Configured 3500 series routers with EIGRP and BGP for the Internet facing router and as well as for the core switches.
  • Working experience with Cisco 3750 and 6500 layer 3 switches. New switches installed to make network scalable and manageable. Reconfigured the STP for placing the Root at the center of the network and guarding the root against unwanted topology changes.
  • Redesigned network infrastructures and proposed new changes for existing layer-2 network to improve bandwidth utilization and segregating the group traffic.
  • F5 Load balancer LTM and GTM
  • Created and maintained network maps for the Network Operation Center (NOC) using VISIO.
  • Managed IP addressing and subneting using INFOBLOX.
  • Configured switches with port security and 802.1x for enhancing customer’s security.
  • Monitored network for optimum traffic distribution and load balancing using Solar winds.
  • Implemented security measures to keep networks running and secure. Configured extended ACLs to filter traffic and gave restricted access to certain users.
  • Supervised call center and technician routine maintenance and up-gradation of network device.
  • Provided network and workstation support.
  • Interfaced with customers and senior management for problem resolution and project planning.

Environment: • Cisco Routers: 1800, 2500, 2600, 3640, 7200 series Routers.

Confidential, GA

JR Network Engineer

Responsibilities:

  • Worked onCiscoLayer 2 & 3 switches (spanning tree, VLAN).
  • WAN Infrastructure running OSPF as core routing protocol.
  • Support various Routers like 2600/3600/7200 series routers.
  • Configured authentication in OSPF and BGP.
  • Configured and troubleshoot OSPF and EIGRP.
  • Troubleshooting IOS related bugs based on past history and appropriate release notes.
  • Work on different connection medium like Fiber and Copper Connectivity.
  • In-depth expertise in the implementation of analysis, optimization, troubleshooting and documentation of LAN/WAN networking systems.
  • F5 Load balancer LTM and GTM
  • Planning and configuring the routing protocols such as OSPF, RIP, and Static Routing on the routers.
  • Performed and technically documented various test results on the lab tests conducted.
  • Planning and configuring the entire IP addressing plan for the clients'network.
  • Assist the certification team and perform configuration of LAN/WAN technologies such as Ethernet, Fast Ethernet, and Gigabit Ethernet.
  • Supported networks, which are comprised of 2000+Ciscodevices.
  • In-depth expertise in the implementation of analysis, optimization, troubleshooting and documentation of LAN/WAN networking systems.
  • Follow process & procedures for change & configuration management.
  • Supported nationwide LAN infrastructure consisting ofCisco4510 and catalyst 6513.
  • Configured port-fast, uplink fast and other spanning tree features.
  • Support Complex 0 Series Switches.
  • NetworkMonitoring-using tools likeCiscoWorks 2000.
  • Created Lab demonstrations for new technology deployments with loaner equipment from various vendors and presented the findings to upper management.
  • Troubleshootnetworkproblems using Packet Analysis tools like Ethereal.

Confidential, NY

LAN/WAN Network Engineer

Responsibilities:

  • LAN Switching - VLAN, VTP, STP, Ether Channel, Stacking & cascading - stack wise plus technology.
  • Working knowledge of Cisco’s MQC - QOS and Nexus 5K
  • WAN - MPLS, MPLS/VPN, MPLS-BGP, PPP, Frame Relay, and Multilink & Multilink Frame Relay.
  • Network Security - IPSec VPN, CBAC, AAA Architecture, TACACS+, RADIUS
  • Wireless technologies - Cisco 5500, 4400 Wireless controllers, Wireless access-points.
  • Application protocols - HTTP, HTTPS, FTP, SMTP, SNMP, SSL etc
  • Network Management & Troubleshooting - Wireshark, Span.
  • Platforms - Cisco Catalyst 2900, 3500, 3750, 4000, 4500, 6000, 6500, 5K. Cisco Routers 2800, 2900, 3600, 3700, 3800, 7200
  • Troubleshooting the Network Routing protocols (BGP, EIGRP and RIP) during the Migrations and new client connections.
  • Manage operational monitoring of equipment capacity/utilization and evaluate the need for upgrades; develop methods for gathering data needed to monitor hardware, software, and communications network performance.
  • Configuring and Troubleshooting Layer 3 devices in MPLS domain. Assigning Ip Addresses, updating Firewall rules, configuring switches connected to servers in Test and Production Environment.
  • Ensures the project will achieve targeted dates to ensure business continuity.
  • Configured and troubleshoot OSPF, BGP, and EIGRP.
  • Worked on projects like BGP Route Reflectors deployment, Removal of BGP from the core
  • Configuration and troubleshooting of Cisco Routers such as Cisco 3640, Cisco GSR 12416,21418(with PRP and RPR processors), Cisco catalyst 6509,7613 with supervisor cards
  • Configured IP RIP, PPP, BGP and OSPF routing
  • Worked on security features such as authentication, authorization, accounting, access control, and secure protocols for Cisco high-end routing platform ( IOS-XR)
  • Involved in the configuration & troubleshooting of routing protocols: MP-BGP, OSPF, LDP, EIGRP, RIP, and BGP v4.
  • Configured IP access filter policies.
  • Implemented network redesign of enterprise security infrastructure, including firewalls, IDS/IPS VPN solutions (trusted site to site, DMVPN, multiple factor authentication remote access systems, log consolidation and monitoring).
  • Configured and played with various BGP attributes such as Local Pref, MED, Extended Communities, Route-Reflector clusters, Route-maps and route policy implementation.
  • Created and delivered internal trainings for BGP.
  • Configuring, Monitoring and Troubleshooting Cisco’s PIX firewall, ASA 5500 security appliance ad Checkpoint NG Firewall. Designing and Implementation experience in building DMZ, and integration of firewalls with Gateway Anti-Virus and web Filtering applications from Trend Micro and Web sense.

Confidential

System Network Engineer

Responsibilities:

  • Extensive Management of Data Centre For Existing Deployed Network. Deployed Various types of Cables Including Straight, Crossover, Rollover, and Fiber along with connecting the fiber onto EMC2 Connectrix Switch etc
  • Worked in Heterogeneous Cross Platform Networks for Cabling of UNIX, REUTERS, SUN, MICROSOFT enabled Machines and connectivity
  • Deployed Cabling, Troubleshooting of Network connectivity related issues for SUN, REUTERS, UNIX, and MICROSOFT based machines
  • Successfully Implemented Expansion Module Chassis (Blades) on 4507 Series Catalyst Switch along with installation of Midspan which Provided Power over Ethernet to Avaya VOIP Phones.
  • Being In-charge of Data closet, Performed Cross wiring Analog Lines, Programming the ports and providing Voice feed for VOIP Phones
  • Data Closet Activity included Monitoring & Troubleshooting of Voice Jacks/Ports and Data Jacks/Ports.
  • Implemented and Supported Cisco pix firewall (515E, 525,535, 5520, 5510 Series Adaptive Security Appliance)
  • 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.
  • Administration of ASA firewalls in the DMZ and FWSM in the Server Farm to provide security and controlled/restricted access.
  • 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.
  • Configuration of NAT.
  • Maintain effective communications with vendors, peers and clients in resolution of trouble-tickets, equipment RMAs, and support requests.
  • 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.
  • Monitored network traffic and developed capacity planning initiatives, making necessary recommendations for additional resources or hardware.
  • My responsibilities also include writing and executing Test Plan, Desk level procedures and Test Case Documents for smooth network operations.

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