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Network Engineer Resume

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Milwaukee, Mi

SUMMARY:

  • In - depth expertise in the analysis, implementation, troubleshooting & documentation of LAN/WAN architecture and good experience on IP services to meet network requirements in Enterprise and Data Center Network.
  • Implementation traffic filters on Cisco routes using Standard, dynamic and extended Access list.
  • Design, configuration, and support of Cisco Nexus Platforms (Nexus 2000/5000/7000 ).
  • Experienced in Configuring CISCO ASA firewalls as Standard and Distribution deployment to have the network secure and maintained Site-to-Site VPN connection through the Firewalls.
  • Deployed Cisco ASA firewalls and Configured DMZ on Cisco ASA firewalls.
  • Extensively worked on Juniper models EX-2200, EX-4200, EX-4500, MX-480, M Series, SRX210 and SRX240.
  • In-depth knowledge and hands-on experience on IP Addressing, Sub netting, VLSM and ARP, reverse & proxy ARP, Ping Concepts.
  • Knowledge of implementing and troubleshooting complex layer 2 technologies such as VLAN Trunks, VTP Ether channel, STP, RSTP and MST.
  • Performs complex Network installations, upgrades and patches following established guidelines under broad direction .
  • Performs advanced network tuning and troubleshooting.
  • Experience in configuring HSRP and redistribution between routing protocols troubleshooting them.
  • Implementation of HSRP, VRRP and GLBP for Default Gateway Redundancy.
  • Worked on F5 Load Balancers to configure Load Balancing servers and applications.
  • Configured LTM (Local Traffic Manager) and GTM (Global Traffic Manager) using F5 Load Balancers.Worked on Load Balancer F5 LTM, GTM series like 6400, 6800, 8800 for the corporate applications.
  • Worked on Wireless Controllers and wireless access points to setup wireless network across the organization.
  • Worked extensively with customers to troubleshoot firewalls, VPN and Wireless access points.
  • Expert Level Knowledge about TCP/IP and OSI models.
  • Expert knowledge of cable connectors and replacement as RJ-11, RJ-45, V.35, RS-449.
  • Excellent communication skills to interact with team members and support personnel and also can act as a mentor to less experienced personnel.
  • Captured and Monitored Packets using Wireshark for F5 and other systems.

TECHNICAL SKILLS:

Routers: Cisco 17XX, 18XX, 26XX, 28XX, 37XX, 38XX, 39XX &72XX series.

Switches: Cisco Nexus 7k, Nexus 5K, Nexus 2K, 3550, 3750, 45XX, 65XX series.

Firewalls: Cisco ASA 5510, 5550, 5585

Load Balancer: Cisco CSS, F5 Networks (Big-IP)

WAN Optimization: Cisco WAAS, PPP Multilink

Routing: OSPF, EIGRP, BGP, RIP-2, PBR, Route Filtering, Redistribution, Summarization, Static Routing

Switching: VLAN, VTP, STP, PVST+, RPVST+, Inter VLAN routing &Multi-Layer Switching, Multicast Operations, Layer 3 Switches, Ether channels, Transparent Bridging

LAN: Ethernet, Fast Ethernet, Gigabit Ethernet, FDDI, CDDI, Token Ring, ATM LAN Emulation

WAN: Leased lines 64k - 155Mb (PPP / HDLC), Channelized links (E1/T1/E3/T3), Fiber OpticCircuits, Frame Relay, ISDN, Load Balancing.

Wireless Devices: Motorola Wing NX-9500-100R0-WR, AP-US Features & Services IOS and Features, HSRP, GLBP, IRDP, NAT, SNMP, SYSLOG, NTP, DHCP, CDP, DNS, TFTPand FTP Management

AAA Architecture: TACACS+, RADIUS, Cisco ACS.

Protocol Analyzer: Wireshark

PROFESSIONAL EXPERIENCE:

Confidential, Milwaukee, MI

Network Engineer

Responsibilities:

  • Perform network protocol analysis and develop protocol specific performance tests and test methodologies for Cisco products .
  • Develop automated processes to; execute performance tests, record, collect and present result data from the test runs .
  • Worked on the configuration and implemented different kind of Cisco Switches and Routers.
  • Extensive experience in configuring and implementing OSPF and BGP
  • Supported core network consisting of Cisco 7200 series routers running multi area OSPF
  • Worked and solved EIGRP, OSPF and BGP related issues on different KOHL's EFC locations
  • Configuration of EIGRP and OSPF as interior gateway protocol with route filtering and route redistribution, installed and maintained Cisco 3600, 2600 and 7200 backbone routes with HSRP
  • Worked on setup redundancy enabled network for better performance using Cisco Nexus 7k environment. Upgraded network from Nortel to Cisco Nexus environment using nexus 5K FEXs.
  • Worked on Cisco VNMC (Virtual Network Management Center) for ASA 1000v Virtual (VMware) Firewall management.
  • Implemented stub/Totally stub areas. Implemented various OSPF features like route-summarization and SPF throttling
  • Configured and installed multi-protocol (IP, IPX) multi-interface Cisco routers
  • Demonstrated the migration benefits from HSRP to GLBP. Successfully upgraded the existing network to GLBP for high availability and load balancing between distribution layer switches.
  • Performed configuration of SNMP, RADIUS, and TACACS along with other standard global configurations on existing client production routers and switches.
  • Managed Cisco ASA firewalls and IPS systems using CSM and ASDM.
  • Configured DMZ for clients on Cisco ASA firewalls.
  • Implemented firewall rules for users and vendors using Checkpoint R71 firewall.
  • Responsible for service request tickets generated by the helpdesk in all phases such as troubleshooting, maintenance, upgrades, patches and fixes with all around technical support
  • Supporting EIGRP and BGP based PwC network by resolving level 2 & 3 problems of internal teams & external customers of all locations.
  • Providing daily network support for national wide area network consisting of MPLS, VPN and point-to point site.
  • Worked on DHCP to automatically assign reusable IP addresses to DHCP clients
  • Upgrading WAN link using PPP Multilink and by implementing Cisco WAAS
  • Negotiate VPN tunnels using IPSec encryption standards and also configured and implemented site-to-site VPN, Remote VPN.
  • Worked on commissioning and decommissioning of the MPLS circuits for various field offices.
  • Support and lead implementation of Joint Task Force (JTF) growing network infrastructure.
  • Used DHCP to automatically assign reusable IP addresses to DHCP clients
  • 24X7 network support for wireless access-points national wide consisting of all 1100+ Kohl's departmental stores.
  • Configured and maintained Wi-Fi access points (AP) for stores using Motorola Access Point Controllers.
  • Implemented VPN tunnels using IPSec encryption standards and also configured and implemented site-to-site VPN, Remote VPN for various Call centers and Vendors of Client.
  • Used Anue-Nexthop and Gigastore Observer devices for expert traffic analysis including brief packet summary.
Confidential, Plano, TX

Network Engineer

Responsibilities:

  • Installs, supports, and manages the hardware/software/network components; responds to and develops solutions for component failures and complex technical problems in all of these areas to deliver a sound and stable computing infrastructure.
  • Tests and evaluates network systems to eliminate problems and make improvements
  • Provide high-level support and rapid resolution to network problems
  • Designed secure data architectures for remote monitoring health sensor network
  • Engineered innovative framework that will secure data in process, in motion, and at rest
  • Designed algorithms, cryptographic models, and requirements for a secure sensor network
  • Researched mobile systems/pervasive computing on the data passage for sensor networks
  • Gathered security requirements for efficient cloud data storage
  • Designed test plans on various routing, switching, IP networks, and MPLS
  • Migrated from legacy catalyst 6500 to ASR 9k
  • Performing troubleshooting on slow network connectivity issues, routing issues involves OSPF, BGP, black box and identifying the root cause of the issues.
  • Design, implementation and operational support of routing/switching protocols in complex environments including BGP, OSPF, EIGRP, Spanning Tree, 802.1q etc.
  • Configure Corporate, Wireless and Lab Devices which includes Bandwidth Upgrade, Adding New Devices, Decom the Devices, Testing (Pilot).
  • Serves as a technical resource for the Network Operations group
  • Performed support by identifying the root cause of the hardware issues with switches, routers.
  • Performs own work and provides assistance to others as directed
  • Worked on Aruba Wireless LAN Implementation for 11n Infrastructure Across the Corporate Network.
  • Implementation of network, which includes configuration of routing protocols, Leased lines, ISDN lines, vlans, IOS installations.
  • Have experience in a complex network environment
  • Troubleshoot the Network Issues onsite and remotely depending on the severity of the issues
  • Familiar with various MSIT Tools to check Networking Connectivity, Testing, Configuration and Adding or Removal of IP address blocks.
  • Requires extensive knowledge of data networks
  • Deploying and decommissioning the VLANs on core ASR 9K, Nexus 7K, 5K and its downstream devices.
  • Designed and implemented secure data architectures for remote monitoring health sensor network
  • Engineered innovative framework that will secure data in process in motion and at rest
  • Research on using mobile systems as the data passage for sensor networks
  • Gathered security requirements for efficient cloud data storage
  • Proposed an effective in memory data management solutions
  • Performed OSPF, BGP, DHCP Profile, HSRP, IPV6, Bundle Ethernet implementation on ASR 9K redundant pair.
  • Performing the ACL requests changes for various clients by collecting source and destination information from them.
  • Experience in creating MOPS (Method of procedures) and get approved from peers for performing configuration changes.
  • Created Visio Documentation to give complete picture of network design for each building.

Environment: Cisco Routers, Cisco Switches, Routing protocols, HSRP, VRRP, IPSEC VPN, VPN, QOS,ASA firewall, VLANS, VTP, RSTP, ACL, NAT, IDS/IPS, Monitoring tools (Cisco works, HP Openview), RADIUS, TACACS+, Adtran, Fortigate, ASR 9k.

Confidential, King of Prussia, PA

Network Engineer

Responsibilities:

  • Participate in Data Center Network Infrastructure Transition and Disaster Recovery Center transition for various locations.
  • Work on different networking concepts and routing protocols like BGP, EIGRP, OSPF and other LAN/WAN technologies.
  • Created standard access lists to allow snmp, ntp and logging servers.
  • Devices monitoring, syslogs, interface bandwidth utilization and devices discovery using Solarwinds NPM.
  • Replaced 6500 from access layer and Installed 3750s Switches.
  • Racking and Stacking of Cisco 3750 Switches.
  • Configured and monitored Nexus switches like 7k, 5k, 2k.
  • Co-ordinate with the Data Network and Security team and come up with possible solutions.
  • Provide solutions to Tier 1 escalated issues and tickets.
  • Knowledge of how DNS fits into the networking environment along with how to troubleshoot DNS issues.
  • Knowledge of good network troubleshooting skills.
  • Replaced old 6500 and WAN routers from DR testing site and configured Nexus 7K and ASR 1006 routers.
  • Upgraded IOS on various Cisco Routers and Switches.
  • Detailed knowledge of critical routing and switching features such as Class of Service/Quality of Service, Traffic and Performance Engineering, High Availability, and IP Services such as FTP, NAT/PAT, and NTP
  • Configuring, Installing and troubleshooting on Check Point Devices.
  • Good knowledge on Intrusion Detection and Intrusion Prevention System.
  • Policy Building using IDP.
  • Worked on FTP, HTTP, DNS, DHCP servers in windows server-client environment with resource allocation to desired Virtual LANs of network.
  • Responsible for day to day management of Cisco Devices, Traffic management and monitoring.
  • Identify additional Network operations requirement and improvement opportunity.
Confidential

Junior Network Engineer

Responsibilities:

  • Troubleshot Cisco hardware: Inspected devices, Read device LEDs, loose connections, interior IOS upgrade, switch port configuration, port monitoring, watch over Flooding Control/Network port.
  • Strategies include operating systems, virus protection, mail systems and Internet services.
  • Updated the anti-virus, spam blockers, and other security software so that the systems are always secured
  • Resolved all computer related problems, monitored and maintained system functionality and reliability by identifying ways to prevent system failures
  • Installed and configured DHCP, DNS Server.
  • Identifying technical problems and debugged hardware and software related to LANs/ WANs.
  • Switching related tasks included implementing VLANS, VTP and configuring ISL trunk on Fast - Ethernet channel between switches.
  • Upgrading IOS, troubleshooting network outages.
  • Develop and implement strategies to support the current and future needs of the company.
  • Configured Cisco Routers 2600 series using RIP, OSPF, EIGRP.
  • Configured Cisco Switches 2900.

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