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Sr. Network Engineer Resume

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Houston, TX

SUMMARY:

  • 8 years of experience in Networking, including hands - on experience in IP network design providing network support, installation and analysis.
  • Expert level knowledge of troubleshooting, implementing, optimizing and testing of static and dynamic routing protocols such as EIGRP, OSPF, BGP ability to interpret and resolve complex route table problems.
  • Worked on Cisco 7200, 3800, 3600, 2800, 2600, 1800 series Router andCisco 2900, 3500,4500, 5500, 6500 series switch.
  • Extensive working knowledge in wireless technologies like EAP,802.11x, Wireless Lan Controller and Cisco PRIME
  • Sound knowledge of Routing and Switching concepts and MPLS design.
  • Proficient in Cisco IOS for configuration & troubleshooting of routing protocols: MP-BGP, OSPF, LDP, EIGRP, RIP, BGP v4, MPLS
  • Configured and monitored different monitor modules F5 big-ip LTM and GTM 1600 and 3400 load balancers.
  • Design, implementation, operations, testing and analysis for wireline (TDM) and wireless (GSM, CDMA) telecommunicationsnetworks
  • Regularly monitoring the network for scalability and performance and Wireless Roaming Issues
  • Updating, maintain and providing technical support on allSS7related elements in the Network.
  • Familiar with Cisco firewalls PIX 515, ASA 5500 series and Check Point Firewalls.
  • In-depth expertise in the analysis, implementation, troubleshooting & documentation of LAN/WAN architecture and good experience on IP services.
  • Hands-on experience with Ether Channel, Spanning Tree, Trunking, ACLs, Syslog.
  • Knowledge of implementing and troubleshooting complex layer 2 technologies such as VLAN Trunks, VTP Ether channel, STP, RSTP and MST.
  • Deploy Nexus 7700 switches at new data center as new core layer. Migrated IOS code toNX-OS, use multiple VRFs to separate edge, core, database, and management zones. Use VPC to connect to downstream devices, including Nexus 2200/5500 for extended fabric connection to chassis switches and other devices.
  • Experience with design and implementation of Virtual Switching System (VSS) for both User segment and server segment using 6509-V-E catalyst switches
  • Knowledge on security attacks like DoS, DDoS, Spoofing, Nessus & Cisco IOS, Cisco Works.
  • Involved in designing L2VPN services and encryption system and other VPN with IPSEC based services.
  • Hand-on experience with the following technologies such as Cisco Nexus - Switches - F5, Net scaler - Load Balancers
  • In-depth knowledge of deploying and troubleshooting LAN, WAN, Frame-Relay, Ether-channel, Routing Protocols - (RIPV2, OSPF, EIGRP & BGP), ACL's, NAT, VLAN, STP, VTP,DOT1x, HSRP & GLBP
  • Understanding the JUNOS platform and worked with IOS upgrade of Juniper devices
  • Installing and configuring F5 Load balancers and firewalls with LAN/WAN configuration.
  • In-depth understanding of IPV4, IP Sub netting, VLSM and ARP, Ping Concepts.
  • Worked on network topologies and configurations, TCP/IP, UDP, Frame Relay, bridges, routers, hubs and Switches.
  • Hands-on configuration and experience in setting up Cisco routers to perform functions at the Access, Distribution, and Core layers.
  • Experienced on different network monitoring and administrative tools like HP node manager, Cacti, Net flow, Netscout, splunk and wireshark
  • Configured HSRP and VLAN trucking 802.1Q, VLAN Routing on Catalyst 6500 switches.
  • In-depth knowledge and hands-on experience on IP Addressing, Sub netting, VLSM and ARP, reverse & proxy ARP, Ping Concepts.
  • Providing support and troubleshooting for Business VOIP clients
  • Configured and troubleshoot F5 LTM, GTM series like 6400, 6800, 8800 for the corporate applications and their availability and A10 load balancer based on different load balancing.
  • Experience in the setup of Access-Lists, and RIP, EIGRP, and tunnel installations.
  • Experience on ASR routers like 1k, 9K series as a core and configured HSRP for active-active redundancy.
  • Involved in migration of WLAN segment on the LAN Core. Also, involved in configuring wireless VLANS
  • Well experienced in configuring gateway redundancy protocols like HSRP, GLBP and VRRP.
  • Enhanced level of experience with OSPF, BGP, and TCP/IP.
  • Excellent leadership with good written and oral communication.
  • Great team player and able to work under pressure 24x7 duty rotation.
  • Experience with redesigning Juniper Firewall with Cisco and Fortinet

TECHNICAL SKILLS:

Routers: (1800, 2500, 2600, 2800, 3600, 3800, 7200).

Cisco Switches: (2900, 3500, 4000, 4500, 5000, 6500, 3750, Nexus 5k, 7k, 2k, 3k).

Routing Protocol: (BGP, OSPF, EIGRP, IGRP, IS-IS, RIP), Routed Protocol TCP/IP, Multicasting.

Management tools: SNMP, Syslog, Sniffer, and Wireshark.

LAN Protocol: VLAN, VTP, RAS, Inter-Vlan routing, ISL, dot1q, STP, RSTP, PVST, HSRP, GLBP, Ethernet, Port security.

WAN Technology: Frame Relay, X.25, PBR, E1/T1/DS1/DS3, ATM, MPLS, VPNs, LDP, L3VPN, VRF, and MPBGP.

WAN Optimization: Cisco WAAS, PPP Multilink

Firewall: Juniper (Netscreen/JUNOS), SonicWALL, WatchGuard, Cisco ASA/PIX, Check point, Palo Alto.

Juniper: E series, J series and M series. MX960, M10i, T1600, T640.

Network Management: SNMP v2, Cisco Works, 3Com Network Analyzer, MRTG, SolarWinds, TACACS

Network Security: Knowledge of Firewall, ASA, IPSec, IPS/IDS,& VPN

Application Protocols: DHCP, DNS, FTP, TFTP, SNMP, HTTP, FTP, ICMP, SMTP, SSL,IP,IPV6.

Documentation: Microsoft Office, Visio

PROFESSIONAL EXPERIENCE:

Confidential, Houston, TX

Sr. Network Engineer

Responsibilities:

  • Working experience with Cisco 3750, 3800, 7200, 7301, 7600, 12410, ASR 1000 and nexus series devices.
  • WAN router configuration that include, ATM frame relay, MPLS AVPN, EIGRP and EGB routing protocol.
  • Configuring routing protocols BGP, OSPF, EIGRP, RIP
  • Performed Network Security Assessment and implemented security improvements such as network filtering, SSH, AAA, SNMP access lists, VTY access lists, EIGRP MD5 authentication and HSRP authentication.
  • Experience in network testing tools such as solarwinds, wireshark and netflow.
  • Implementing LAN technologies such as VLAN, HSRP, VSRP and security protocol such as IPsec, SSL etc.
  • Worked with application protocol such as SSL, RTMP, RTSP and DNS.
  • Worked with L2 and L3 routing protocols such as VSTP, MSTP, LACP, GVRP, VLT, UDLD, RSPAN, SPAN.
  • Experience in working with Nexus 7010, 5020, 2148, 2248 and catalyst 6509, 4507 series devices.
  • Troubleshoot L2 and L3 problems and co-ordinate with others staffs to find network issues.
  • Configuring various advanced features of different routing protocols including BGP, OSPF, EIGRP.
  • Create and testCisco router and switching operations using OSPF routing protocol, ASA Firewalls, and MPLS switching for stable VPNs.
  • Managed the network using SNMP v2, Cisco Works, SolarWinds, Netflow and TACAS
  • Professional experience with demonstrated success in network administration, maintain and troubleshooting JuniperEX Series Switches, RoutersM10i, MX960and Firewalls
  • Design and implement Catalyst/ASAFirewallService Module for various LAN's.
  • CiscoASA/CheckpointFirewalltroubleshooting and policy change requests for new IP segments that either come on line or that may have been altered during various planned network changes on the network.
  • Working knowledge with Load BalancersF5LTM like 3900, 6900 for various application
  • Experience in installing, configuring and troubleshooting ofCheckpointFirewall
  • Experience in adding Rules and MonitoringCheckpointFirewalltraffic through Smart Dashboard and Smart View Tracker applications
  • Configuration and troubleshooting link state protocols like OSPF in single area and multiple areas.
  • Redesign of Internet connectivity infrastructure for meeting bandwidth requirements.
  • Configured HSRP and VLAN trucking 802.1Q, VLAN Routing on Catalyst 6500 switches.
  • Optimized performance of the WANnetworkconsisting of Cisco 3550/4500/6500 switches by configuring VLANs.
  • Configured VLANs with 802.1q tagging. Configured Trunk groups, ether channels, and Spanning tree for creating Access/distribution and core layer switching architecture.
  • Provide support for migration of data resources toAWScloud. This includes connectivity toAWScloud .The migration consists of designing security groups, network ACLs, internal and external ELBs and providing VPN connectivity to customer edge network.
  • 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.
  • Experience in working with theCitrixNetscalar.
  • ConfiguredWANtrafficoptimizationusing Riverbed
  • Interacted with different teams - on developing/ implementing the Onsite Offshore model for 24X7 supports.
  • Experience in Pythonscriptingfor network automation purposes

Confidential, Oakland, CA

Sr. Network Engineer

Responsibilities:

  • Configure / Troubleshoot CISCO 12000, 7500, 3800 series routers and 3560 series switch for LAN/WAN connectivity.
  • Involved in design and implementation of Data Center Migration, worked on implementation strategies for the expansion of the MPLS VPN networks
  • Experience configuring VPC, VDC and ISSU software upgrade in Nexus 7010
  • Experience in Configuring, upgrading and verifying NX-OS operation system with OSPF, BGP
  • Actively involved in Switching technology Administration including creating and managing VLANS, Port security- 802.1x, Trucking 802.1Q, RPVST+, Inter-VLAN routing, and LAN security on Cisco Catalyst Switches4507R+E, 6509-E and Cisco Nexus Switches 2232, 5596, 7009.
  • Troubleshooting of complex LAN/WAN infrastructure that include routing protocols EIGRP, OSPF & BGP, MPLS
  • Experience with deploying PIM Sparse-mode/Dense-mode multicasting in Campus locations.
  • 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 enterprisenetworkinfrastructure utilizing Juniperrouters like Juniper MX80, MX 480 and MX960.
  • Installing and configuring Juniper firewall devices on the network.
  • Troubleshooting and configuring access lists on Juniper firewall.
  • Experienced implementing and configuring Checkpoint firewall on the network.
  • Involved in Configuration of Access lists (ACL) on checkpoint firewall for the proper network routing for the B2B network connectivity.
  • Worked onF5LTM/GTM, Big-IP and load balancing.
  • Experience in working with theCitrixNetscalar.
  • Managed the network using 3Com Network Analyzer, MRTG, SolarWinds and TACAS
  • 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.
  • Experience working with ASR 9000 series switches with IOS-XR
  • ConfiguredWANtrafficoptimizationusing Riverbed
  • Provide support for migration of data resources toAWScloud.
  • Provided Layer-3 redundancy by implementing HSRP and GLBP for High availability
  • Implementation and Configuration ( Profiles, I Rules) of F5 Big-IP LTM-6400 load balancers
  • Implemented Access lists and policy mapping onJuniperrouter installed in each branch across all the states.
  • Worked on configuration commissioning and upgradation of the MPLS circuits for various branch offices.
  • Experience in Pythonscriptingfor network automation purposes

Confidential, Princeton, NJ

Sr Network Engineer

Responsibilities:

  • Assisted in troubleshooting LAN connectivity and hardware issues in the network of 500 hosts.
  • Studied and analyzed client requirements to provide solutions for network design, configuration, administration, and security.
  • Involved in troubleshooting IP addressing issues and Updating IOS images using TFTP.
  • Maintained redundancy on Cisco 2600, 2800 and 3600 router with HSRP.
  • Installed and configured Cisco equipment including Cisco catalystswitches6500,Nexus7010,Nexus5548 andNexus2k as per business requirements.
  • Installing and configuring Juniper firewall devices on the network.
  • Extensive hands-on experience in Palo Alto and Juniperdeployment and troubleshooting.
  • Created a backup and recovery policy for software application and verified peripherals are working properly.
  • Monitor performance of network and servers to identify potential problems and bottleneck.
  • Performed RIP & OSPF routing protocol administration.
  • Successfully installedPaloAltofirewallsto protects Data Center and provided support
  • Responsible for configuring policies inPaloAltodevice.
  • Implement and troubleshoot changes requested by network & system engineers onPaloAlto, Juniper Firewalls
  • Interacted with support services to reduce the downtime on leased lines.
  • Troubleshoot problems on a day to day basis & provide solutions that would fix the problems within their Network.
  • Maintenance and Troubleshooting of connectivity problems using Ping, Trace route.
  • Daily responsibilities included monitoring remote site using network management tools, assisted in design guidance for infrastructure upgrade & help LAN administrator with backbone connection and connectivity issue Other responsibilities included documentation and support other teams
  • Configured OSPF over frame relay networks for NBMA and point to multipoint strategies
  • Implementing traffic engineering on top of an existing Multiprotocol Label Switching (MPLS) network using Frame Relay and Open Shortest Path First (OSPF).
  • Provided redundancy in a multi homed Border Gateway Protocol (BGP) network by tunings AS-path
  • Hand on experience the configuration and implementation of various Cisco Routers and L2 Switches.
  • Designed and implemented VLAN using Cisco switch catalyst 1900, 2900, 5000 & 6000 series.
  • Modified internal infrastructure by adding switches to support server farms and added servers to existing DMZ environments to support new and existing application platforms.
  • Built site-to-site IPSec VPNs over Frame-relay & MPLS circuits on various models of Cisco routers to facilitate adding new business partners to new and existing infrastructures.
  • Analyzed customer application and bandwidth requirements, ordered hardware and circuits, and built cost effective network solutions to accommodate customer requirements and project scope.
  • Configured routers and coordinated with LD Carriers and LECs to turn-up new WAN circuits. Configuring, Maintaining the Routers and Switches and Implementation of RIP, EIGRP, OSPF, BGP routing protocols and trouble shooting.
  • Possess good experience in configuring and troubleshooting WAN technologies like MPLS, T1, T3, DS3 and ISDN.
  • Responsible for implementing QOS parameter on switching configuration.
  • Involved in Design and Implementation of complex networks related to extranet clients.
  • Troubleshooting the Network Routing protocols (BGP, EIGRP and OSPF) 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.
  • Managed the network using 3Com Network Analyzer, SolarWinds
  • Worked towards the key areas of the project to meet SLA’s and to ensure business continuity. Involved in meetings with engineering teams to prepare the configurations according to the requirement.
  • Creating change tickets according to the scheduled network changes and implementing the changes.
  • Experience in Pythonscriptingfor network automation purposes.

Confidential

Junior Network Engineer

Responsibilities:

  • Implementing new/changing existing data networks for various projects as per the requirement.
  • Troubleshooting complex networks layer 1, 2to layer 3 (routing with MPLS, BGP, EIGRP, OSPF protocols) technical issues.
  • Providing support to networks containing more than 2000 Cisco devices.
  • Performing troubleshooting for IOS related bugs by analyzing past history and related notes.
  • Carrying out documentation for tracking network issue symptoms and large scale technical escalations.
  • Ensure Network, system and data availability and integrity through preventive maintenance and upgrade.
  • 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.)
  • Managing the service request tickets within the phases of troubleshooting, maintenance, upgrades, fixes, patches and providing all-round technical support.
  • Commissioning and Decommissioning of the MPLS circuits for various field offices.
  • Preparing feasibility report for various upgrades and installations
  • 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.
  • Configured switches with port security and 802.1 xs for enhancing customer’s 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
  • Configuring and troubleshooting multi-customer network environment.
  • Involved in network monitoring, alarm notification and acknowledgement.
  • Subnetting networks. Troubleshooting DHCP and DNS Servers.
  • Experience in Pythonscriptingfor network automation purposes.

Network Engineer

Responsibilities:

  • Upgrade Cisco 7200, 3600 Router IOS Software, backup Routers and Catalyst 3560, 4500 switch configurations
  • Support 24x7 operations and answer calls from the customers on network emergencies and resolve issues
  • Install and manage Cisco Catalyst 3500XL, & 2960 series Switches and Cisco 1800, 3900 series routers
  • Hands on Experience in Inter-Vlan routing, redistribution, access-lists and dynamic Natting
  • Experience in installing, configuring and troubleshooting ofCheckpointFirewall
  • Experience in adding Rules and MonitoringCheckpointFirewalltraffic through Smart Dashboard and Smart View Tracker applications
  • Log messages using Syslog server and analyze the issues related to high CPU utilization and parameters that can degrade performance of the network
  • Involved in all technical aspects of LAN and WAN projects including, short and long term planning, implementation, project management and operations support as required
  • Conduct through analysis, problem solving, and infrastructure planning
  • Provide assistance to Network Manager and serve as Secondary Network support.
  • Troubleshoot and fix any backup and monitoring systems related issues in conjunction with Systems team and external vendors
  • Implemented Checkpoint firewall and configured rulesEDUCATIONAL QUALIFICATION: Bachelor’s degree from BVBCET, Hubli, India.

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