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Sr. Network Engineer Resume

Lees Summit, MO

SUMMARY

  • Over 8 years of experience in IP network design, network integration, deployment and troubleshooting.
  • Extensive knowledge in configuring and troubleshooting Layer 3 Interior Gateway Routing protocols such as Link - State routing protocols (OSPF and IS-IS) and Distance Vector routing protocols (RIPv1, RIPv2 and EIGRP).
  • Good knowledge in configuring and troubleshooting Exterior Gateway protocols such as BGPv4 including internal BGP (iBGP) and external BGP (eBGP).
  • Extensive knowledge of WAN technologies such as T1, T3, DS3, OCx, SDH, SONET, LTE, Fiber and Frame relay.
  • Worked on configuring the Nexus 5K Aggregation Switch and Nexus 2K Fabric Extenders.
  • Implemented VDC, VPC, VRF and OTV on the Nexus 5505 and 7009 switches.
  • Hands on experience in configuring high end routers like GSR 12000 series, 7500 series and Catalyst Switches like 7600, 6500, 4500 series.
  • Extensive experience in upgrade, backup and password recovery of Cisco IOS.
  • Experience in working with Cisco Nexus Switches like 5000 and 7000 series and Virtual Port-Channel configuration.
  • Knowledge and configuration of redundant router protocols like HSRP, VRRP and GLBP.
  • Substantial knowledge, including the configuration, of Spanning Tree Protocol (STP), Per VLAN Spanning Tree (PVST), Rapid STP (RSTP) and Rapid per VLAN Spanning Tree (PVST+).
  • Thorough experience in configuring Virtual Local Area Networks (VLAN) with IEEE 802.1Q, VLAN trunking protocol (VTP), shortest path bridging, Multiple VLAN Registration Protocol and VLAN Cross Connect (CC).
  • Experience in troubleshooting both connectivity issues and hardware problems on Cisco based networks.
  • In-depth knowledge and hands-on experience in Tier 2 ISP Routing Policies and Firewalls.
  • Experience in testing Cisco routers and switches in lab scenarios and deploy on site for production.
  • Good knowledge of IPv4 and IPv6 Addressing, Fixed Length and Variable Length Subnet Masking (VLSM), OSI and TCP/IP models.
  • Experience in migration of IPv4 addresses to IPv6 addresses using mechanisms like Tunnel Broker, Transport Relay Translation (TRT), NAT64, DS-Lite and DNS64.
  • Experience in installing and configuring NAT, DHCP server and DNS in large networks.
  • Experience in configuration of LAN protocols such as Ethernet and Fiber Distributed Data Interface (FDDI) on Cisco Switches.
  • Worked on Cisco Firewalls Cisco ASA 5500(5510/5540) Series and Checkpoint R75, 76 Firewalls.
  • Experience in installing and configuring Checkpoint NGX R70.
  • Implemented traffic filters using standard and extended access-lists, distribute-lists and route maps.
  • Provided support that included resolving day-to-day operational issues with tickets generated by a server.
  • Experience with F5 load balancers - LTM, GTM series like 6400, 6800, 5000 ad 2000 for the corporate applications and their availability.
  • Experience in documenting and preparing the process related operational manuals.
  • Wide exposure to LAN/WAN setup, installation, configuration and commissioning of network devices.
  • Good understanding of SNMP, IP SLA and Network Monitoring with experience in tools like PRTG.
  • In-depth knowledge and hands-on experience in Tier II ISP Routing Policies, Network Architecture, IP Sub netting, VLSM, TCP/IP, NAT, DHCP, DNS, FT1 / T1 / FT3 / T3, SONET POS OCX/ GigE circuits, Firewalls.
  • Good knowledge on implementing F5 BIG-IP load balancer.
  • Experience in implementation of F5 GTM based on topology load balancing methods
  • Having experience in deploying BIG-IP F5LTM Load Balancers for load balancing and traffic management of business application.
  • Experience in troubleshooting a variety of problems. Streamlined and improved process to be quicker to market, ensured compliance and optimized operational efficiency. Identified opportunities for continued improvements of process to ensure maximum output.

TECHNICAL SKILLS

Cisco Routers: Cisco ASR9k, GSR 12000, 7600, 7500, 7200 VXR, 3800, 3700, 2800, 2600

Cisco Catalyst Switches: Catalyst 6500, 4000, 3550, 2900

Nexus Switches: Nexus5548, 5596, 6000, 7009, 7018; Cisco Catalyst: 6506, 6509, 4928, 4948, 4507,4510, 3750,3560,and 2960

IP Routing Protocols: BGP, OSPF, EIGRP, IGRP, RIP v1 & v2, IS-IS

MPLS: LDP, MPLS L3 and L2 VPN

Load Balancing: Cisco ACE 4700 series, F5 LTM

Firewalls: Cisco ASA 5500, Cisco PIX 500, checkpoint r60, checkpoint r65

LAN Switching: STP, IEEE 802.1Q, VTP, VLAN & Inter-VLAN routing, QoS

WAN/core: ATM, Frame-Relay, ISDN, PPP, HDLC

Optical infrastructure: SONET OC3-OC192, SDH, POS, PDH

IP Telephony: SIP, H.323, RTP, Voice Gateways, CCM, QoS

VoIP Devices: Cisco IP phones, Cisco 5500, 6500 series controller, Avaya 3000, 6000, 7200 series Controllers

Quality of service: CBWFQ, RED/WRED

Wireless Technology: Cisco AP, LWAP, Access Points, WCS

Ticketing software: ConnectWise, Remedy system

Management software: HP openview, Solar winds, PRTG Network Monitor

IPSEC/VPN Configuration: PIX to Router, Router to Router, PIX to VPN wildcard client, Router to VPN wildcard client, PIX to PIX, fully meshed configurations

Cabling: CAT 5, CAT 5e, CAT 6, CAT 6a

Operating Systems: Windows Server/8/7/Vista/XP, Nexus OS, Cisco IOS-XR, Linux, Unix (Mac OS)

Microsoft Office: Visio, Excel, PowerPoint, Word

PROFESSIONAL EXPERIENCE

Confidential, Lees Summit, MO

Sr. Network Engineer

Responsibilities:

  • Experience with design and implementation of Data center migration
  • Experience with manipulating various BGP attributes such as Local Preference, MED, Extended Communities, Route-Reflector clusters, Route-maps and route policy implementation.
  • Deploying and decommission of VLANs on core ASR 9K, Nexus 7K, 5K and its downstream devices.
  • Performed OSPF, BGP, DHCP Profile, HSRP, IPV6, Bundle Ethernet implementation on ASR 9K redundant pair.
  • Configured CIDR IP RIP, PPP, BGP, MPLS and OSPF routing.
  • Assisted in MPLS migrations, implemented a backup for the existing WAN connection using site-to-site IP sec VPN tunnels.
  • Involved in the activity of DATA-Center migration of regular Cisco catalyst switches with the new Nexus2148, 2224T, 5548, 6018, 7010using F3/M3 line-cards with 10GE & 40GE interfaces and Supervisor 2E.
  • Configuring and installing 6500, 4500 in Campus networks.
  • Switches Replace branch hardware with new 2851 routers and 2960 switches.
  • Conversions to BGP WAN routing. Which will be to convert WAN routing from OSPF to BGP (OSPF is used for local routing only) which involves new wan links.
  • Convert Branch WAN links from TDM circuits to MPLS and to convert encryption from IPSec/GRE to GetVPN.
  • As part of Data Center fabric remediation/refresh project, deployed Cisco Nexus switches and implemented features like FEX Links, VPC and VDC.
  • Lead Engineer for Network refresh project for Multinational insurance company. Providing remote assistance for replacing exiting switches with new Cisco switches.
  • Configuring routing protocols OSPF, EIGRP,RIP, MPBGP, LDP and BGPV4
  • Configuring HSRP between VLANs, Configuring Ether-Channels, Port Channel on 6500 catalyst
  • Build Logical design and Implementation of Wireless Solution
  • Worked on F5 LTM, GTM series like 6400, 6800, 8800 for the corporate applications and their availability
  • Involved in the configuration & troubleshooting of routing protocols: MP-BGP, OSPF, LDP, EIGRP, RIP, BGP v4. Configured IP access filter policies.
  • Deploying and decommissioning Cisco switches and their respective software upgrades.
  • Performing the ACL requests change for various clients by collecting source and destination information from them.
  • Maintained complex LAN/WAN networks with several VLANS and provided support for routing protocols and also providing secure sessions over internet using IPSec and SSL encryption.
  • Worked extensively on Cisco ASA 5500(5510/5540) Series, experience with convert PIX rules over to the Cisco ASA solution.
  • Supporting EIGRP and BGP based on the network by resolving level 2 & 3 problems of internal teams & external customers of all locations
  • Performing troubleshooting on slow network connectivity issues, routing issues that involves OSPF, BGP and identifying the root cause of the issues.
  • Worked on migration of existing PIX firewall to ASA firewall, PIX OS upgrade from 6.3 to 7.0.
  • Design and Implement DMZ for FTP, Web and Mail Servers with CISCO PIX 506, PIX515
  • Building the VPN tunnel and VPN encryption.
  • Involved in Configuration of Access lists (ACL) on ASA firewall for the proper network routing for the B2B network connectivity.
  • To secure configurations of load balancing in F5, SSL/VPN connections, Troubleshooting CISCO ASA firewalls, and related network security measures.
  • Provided proactive threat defense with ASA that stops attacks before they spread through the network.
  • Designed and implemented DMZ for Web servers, Mail servers & FTP Servers using Cisco ASA5500 Firewalls.
  • Troubleshoot the Network Issues onsite and remotely depending on the severity of the issues.
  • Performed Break Fix support through driving to different buildings, identifying the root cause of the hardware issues with switches, routers.
  • Design, implementation and operational support of routing/switching protocols in complex environments including BGP, OSPF, EIGRP, Spanning Tree, 802.1q, etc.
  • Worked with creating VIP (virtual servers), pools, nodes and applying iRules for the virtual servers like cookie persistency, redirection of the URL.
  • Created Visio Dean / Visio Documentation to give complete picture of network design for each building.
  • Experience in Configuring, upgrading and verifying the NX-OS operation system.

Environment: Cisco 2948/3560/4500/3560/3750/3550/3500/ switches and Cisco 3640/ 00/3845/3600/2800 routers, Cisco Nexus 7K/5K, Cisco ASA 500, Checkpoint, windows server 2003/2008: F5 BIGIP LTM,RIP,OSPF,BGP,EIGRP,LAN,WAN,VPN,HSRP

Confidential, Sunnyvale, CA

Network Engineer

Responsibilities:

  • Performed network implementation that includes configuration of routing protocols, leased lines, ISDN lines, VLANs and IOS installations.
  • Troubleshot the network issues onsite and remotely, depending on the severity of the issues.
  • Deployed and decommissioned the VLANs on core ASR 9K, Nexus 7K, 5K and its downstream devices.
  • Had hands-on experience with WAN (ATM/Frame Relay), Routers, Switches and IP addressing.
  • Configured and deployed VPC, OTV, FABRIC PATH between Nexus 7010 and Nexus5596,5548 switches along with FEX2248
  • Worked with layer 2 switching technology architecture. Implemented L2 and L3 switching functionality, which includes the use of VLANS, STP, VTP and their functions as they relate to networking infrastructure requirements including internal and external treatment, configuration and security.
  • Supported core network consisting of Cisco 7200 series routers running multi area OSPF.
  • Configured EIGRP and OSPF as interior gateway protocols with route filtering and route redistribution. Troubleshot complex LAN/WAN infrastructure that include routing protocols EIGRP, OSPF and BGP.
  • Responsible for all aspects of TCP/IP functionality across multiple enterprise environments.
  • Performed OSPF, BGP, DHCP Profile, HSRP, IPV6, Bundle Ethernet implementation on ASR 9K redundant pair.
  • Involved in Implementation and Configuration ( Profiles, I Rules) of F5 Big-IP C-4400 load balancers
  • Configured ASA 5500-X Series firewalls to provide highly secure and high performance connectivity between the site locations.
  • Configuring Big-IP F5 LTMs (virtual servers, pools, SNATs, health monitors, irules) for managing the traffic and tuning the load on the network servers.
  • Worked on Juniper SRX 5800 firewalls to create policies using J-Web User Interface.
  • Performed Network Address Translation on Cisco ASA 8.2 and 8.3
  • Used DHCP to automatically assign reusable IP addresses to DHCP clients.
  • Performed the ACL request changes for various clients by collecting source and destination information from them.
  • Troubleshoot the BIG-F5 1600 LTM through constant contact with the vendor.
  • Created MOPS (Method of procedures) and sought the approval of peers to perform configuration changes.

Environment: Cisco Routers, Cisco Switches,Nexus 7k/5k/2k Routing protocols,F5, Load Balancer HSRP, VRRP, IPSEC VPN, VPN, QOS, ASA firewall, Load balancer, MPLS, VLANS, VTP, RSTP, ACL, NAT, IDS/IPS, Monitoring tools(PRTG, HP OpenView), SIP, RTP, RADIUS, TACACS+, Cisco Wi-Fi technologies, Juniper SRX, ASR 9000, Catalyst 6500, CRS, Cisco ASR Firewall, IPV6, Cisco IP phones

Confidential, Aurora, CO

Network Engineer

Responsibilities:

  • Designed and implemented Cisco VoIP infrastructure for a large enterprise and multi-unit office environment. Met aggressive schedule to ensure a Multi-office reconfiguration project which was successfully delivered
  • 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.
  • Configuring Big-IP F5 LTMs (virtual servers, pools, SNATs, health monitors, irules) for managing the traffic and tuning the load on the network servers.
  • Upgrade Cisco Routers, Switches and Firewall (PIX) IOS using TFTP
  • Updated the HP open view map to reflect and changes made to any existing node/object.
  • Handled SRST and implemented and configured the Gateways, Voice Gateways.
  • Configuring HSRP between the 3845 router pairs for Gateway redundancy for the client desktops.
  • Configuring STP for switching loop prevention and VLANs for data and voice along with Configuring port security for users connecting to the switches.
  • Ensure Network, system and data availability and integrity through preventive maintenance and upgrade.
  • Implementation and Configuration ( Profiles, I Rules) of F5 Big-IP C2400 load balancers
  • Involved in L2/L3 Switching Technology Administration including creating and managing VLANs, Port security, Trunking, STP, Inter-Vlan routing, LAN security.
  • Worked on the security levels with RADIUS, TACACS+.
  • Completed service requests (i.e. - IP readdressing, bandwidth upgrades, IOS/platform upgrades, etc.)
  • Identify, design and implement flexible, responsive, and secure technology services
  • Modified internal infrastructure by adding switches to support server farms and added servers to existing DMZ environments to support new and existing application platforms.
  • Performed load balancing and application level redundancy by deploying F5 BIG-IP LTM 3900.
  • Configured switches with port security and 802.1x for enhancing customers security.
  • Monitored network for optimum traffic distribution and load balancing using Solar winds.
  • Validate existing infrastructure and recommend new network designs.
  • Created scripts to monitor CPU/Memory on various low end routers in the network.
  • Installed and maintained local printer as well as network printers.
  • Handled installation of Windows NT Server and Windows NT Workstations.
  • Handled Tech Support as it relates to LAN & WAN systems

Environment: Net Flow,TACACS,EIGRP,RIP,OSPF,BGP,VPN,MPLS,CSM,SUP720, Ether Channels, Cisco 7200/3845/3600/2800 routers, Fluke and Sniffer, Cisco 6509/ 3750/3550/3500/2950 switches, Checkpoint firewalls(SPLAT).

Confidential, Rochester, MN

Network Engineer

Responsibilities:

  • Configured OSPF on CISCO devices with multiple routing processes and redistributed them. Tested and hands on experience in multi area OSPF topologies.
  • Configuring, managing and troubleshooting networks using routing protocols like RIP, EIGRP and OSPF (Single Area and Multi Area).
  • Assisted with troubleshooting all network issues with routers and switches when necessary and consulted with on call tech as needed for client.
  • Monitor, troubleshoot, test and resolve Frame Relay, ATM, MLPPP, PPP, and Dial-up.
  • Configuring/Troubleshoot issues with the following types of routers Cisco (7200, 6500, 4500, 1700, 2600 and 3500 series), to include: bridging, switching, routing, Ethernet, NAT, and DHCP, as well as assisting with customer LAN /MAN.
  • 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.
  • Installation and Configuration of various types of Personal Computers and Printers. Installation of different operating systems on Intel based PC's.
  • Configuring Vlan’s, VTP’s, enabling trunks between switches.
  • Assisted in network engineering efforts consistent with the infrastructure of an Internet Service Provider and support of such network services. Helped in designing and implementation of VLAN for the new users.
  • Plans, coordinates, implements and supports the LAN / WAN hardware, software and Internet /Intranet integration network connectivity, diagnose network failures and resolve any problems.
  • Troubleshoot Frame Relay; T1, T3, IP and OSPF related router and circuit issues.
  • Documenting and Log analyzing the Cisco PIX series firewall.
  • Excellent Troubleshooting Skills and Customer Centric approach.

Environment: Cisco 2990/3550/6550 switches, Cisco 7200/3845/3600/2800 routers, EIGRP, RIP, OSPF, BGP, VPN, Ether Channels, and Sniffer.

Confidential

Network Engineer

Responsibilities:

  • Provide high level technical support, including identifying and resolving problems on Cisco supported products for e-Commerce infrastructure. This included external routing and internal/intranet routing for DMZ servers.
  • Implemented cable multi-service operator (MSO) to capture traditional Telco subscribers with IP telephony and provide relevant QOS.
  • Configured EIGRP, BGP, and MPLS.
  • Configure Firewall, QOS by SDM and provide security by Prefix list, Access- List and By Distribution List.
  • Moved Core switches and several non-Cisco devices under strict deadlines to maintain network functionality
  • Implemented new ultra secure networks in multiple data centers that included Cisco, Juniper security devices.
  • Designed VLAN’s and set up both L2 and L3 logical to have it communicate to the Enterprise network.
  • Scheduled preventive maintenance for fire-protection systems, including new protocols. Utilize MS Windows, Word, and Excel for reporting/documenting process.
  • Satisfactorily Resolved Problems in timely manner with focus on providing a high level of support for all customers.

Environment: Cisco 2950 switches and Cisco 3825 Routers, EIGRP, BGP, MPLS, VLAN, QOS

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