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Sr. Network Engineer Resume

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Chicago, IL

PROFESSIONAL SUMMARY:

  • CCNP and CCNA certified with 7+ years of professional experience in Network Planning, Implementing, Configuring, Troubleshooting and testing of networking system on both Cisco and Juniper Networks.
  • Experience with the escalation problems & point - of-contact for Routing, Switching and WAN connectivity issues using ticketing system Remedy.
  • Strong knowledge in Cisco Routing, Switching and Security with Cisco hardware/software (heavy Cisco shop) experience.
  • Experience of routing protocols like EIGRP, OSPF, RIP, and BGP and setup of Access-Lists, and RIP, EIGRP, and tunnel installations.
  • Proficiency in configuration of VLAN setup on variousCiscoRouters and Switches.
  • Experienced in trouble-shooting both connectivity issues and hardware problems on Cisco based networks.
  • Hands on experience in configuring and supporting site-to-site and remote access Cisco, IPSec, VPN solutions using ASA/PIX firewalls, Cisco and VPN client.
  • Knowledge of implementing and troubleshooting complex layer 2 technologies such as VLAN Trunks, VTP, Ether channel, STP, RSTP and MST. Implementation of HSRP, VRRP for Default Gateway Redundancy
  • Involved in troubleshooting of DNS, DHCP and other IP conflict problems.
  • Responsible for Check Point and Cisco ASA firewall administration across global networks.
  • Experience in working with Cisco Nexus Switches and Virtual Port Channel configuration.
  • Worked on F5 LTM, GTM series like 6400, 6800, 8800 for the corporate applications and their availability.
  • Experience working with Nexus 7K, 5K, 2K devices.
  • Profound knowledge on various WAN technologies like E1/T1/E3/T3, HDLC, Frame-Relay and PPP.
  • Expertise in implementing, maintaining and troubleshooting L2 switching tasks such as VLANs, VTP, VLAN Trunking using ISL and 802.1Q, STP, RSTP, PVST+, Ether channel using LACP and PAgP, Inter-Vlan routing.
  • Experience with the implementation of multicast/MPLS/l2vpn.
  • Experience in Network Management Tools and sniffers like SNMP, HP-Open view, Wireshark and Cisco works to support 24 x 7 Network Operation Center.
  • Experience in installing, configuring and troubleshooting of Checkpoint Firewall and Juniper SRX series.
  • Experience in managing security policies with CSM, integrated with ASA 5500 devices.
  • Access control server configuration for RADIUS & TACAS+.
  • Expertise with 802.11x wireless technology.
  • Ability to Install, Manage & Troubleshoot Large Networks & Systems Administration on Windows & Linux platforms in Development, Lab & Production Environments.
  • Good knowledge of virtual firewalls like checkpoint VSX, IDS, IPS as well as encryption techniques.
  • Good Knowledge on Juniper SRX configurations on various platforms of Junos.
  • Installed and configured firewalls, IPS, IPSec VPNs and various screens for intrusion prevention on Juniper SRX equipment.
  • Support for Juniper M120 & J series, Cisco 3745, 6500, Extreme Summit, GPRS CGSN, and Memotec switch.
  • Upgrade network equipment, software and hardware components and system configuration.
  • Maintain technical detailed documentation of LAN and WAN systems and applications.
  • Juniper firewall rules deployments.
  • Expertise on Cisco IOS, Cisco IOS-XR, Cisco CatOS, Cisco NX-OS, JUNOS.
  • Installation and configuration of VMWare ESXi 4.x/5.0.
  • Installation and Configuration of new Citrix Server builds via Powershell automation scripts.
  • Good working knowledge of Powershell for routine Citrix server management, configuration and application management tasks.
  • 24/7 On-call production support.
  • Good working knowledge of Active Directory and Group policy management, designing GPOs for server farms and workstations to optimize Citrix end user experience and server performance.
  • MS Active Directory, Microsoft App-V, VMware Virtual Infrastructure - VMware ESX/esxi, Virtual centre 1.3/2, P2V Assistant 2.0, Power convert 6.5
  • Expertise with monitoring tools like Solar Winds & network packet capture tools like Wire-shark.
  • Experienced working on network monitoring and analysis tools like SolarWinds, CISCO works and Wireshark.
  • Designed, configured and implemented LAN/WAN/Wirelessnetworksin 30 remote offices domestic and globally consisting of Cisco 4510R-E and 3850X Core switches, Cisco 2921 WAN router,Aruba Mobilitycontroller, and Palo Alto firewalls.
  • Worked on MPLS-VPN designs and MPLS-Qos for the migration of frame relay to MPLS system.
  • Experience in working with IPSEC Site to Site, Remote VPN using different encryption methods.
  • Experience in Configuring DNS and DHCP servers.
  • Multicastrouting/switching, Rosen draft, mLDP, IPTV solutions.
  • Hands on Knowledge/experience on F5 load balancers, its methods, implementation and troubleshooting on LTMs and GTMs.
  • Worked extensively on Palo Alto, Juniper Net screen and SRX Firewalls.
  • Experience with design and deployment of MPLS Layer 3 VPN, MPLS Traffic Engineering, MPLS QOS.
  • Experience in Physical cabling, IP addressing, configuring and supporting TCP/IP.
  • Efficient at use of Microsoft VISIO/Office as technical documentation and presentation tools.
  • Excellent customer management/resolution, problem solving, debugging skills and capable of quickly learning, effectively analyses results and delivering solutions as an individual and as part of a team.

TECHNICAL SKILLS:

Cisco & other vendor Equipment: Nexus 7K, 5K, 2K & 1K, Cisco routers (7600, 7200, 3900, 3600, 2800, 2600, 2500, 1800 series) & Cisco Catalyst switches (6500, 4500, 4900, 3750, 3500, 4500, 2900 series). PIX Firewall (506/515/525/535 ), ASA (5505/5510/5580 ), Cisco ACE Load Balancers and Checkpoint (IP Series/NGX R65/IPSO).

Routing Protocols: RIP, IGRP, EIGRP, OSPF, IS-IS, BGP, HSRP,VRRP&GLBP

Network Management: Solar Winds, SNMP, Cisco Works, Wireshark

Infrastructure services: DHCP, DNS, SMTP, FTP, and TFTP

LAN Technologies: Ethernet, Fast Ethernet, Gigabit Ethernet, & 10 Gigabit Ethernet

Network Security: NAT/PAT, Ingress & Egress Firewall Design, VPN Configuration

Platforms: Cisco IOS-XR, Cisco Cat OS, Cisco IOS (11.x, 12.x), PIX IOS (6.7.x), CAT-OS UNIX, LINUX, Windows XP, NT, 2000, 2003, Windows server 2008/2012R2 X86 & X64, Citrix Streaming Profiler 6.5, Vmware ESX3.5/4.0 and Esxi 4.1/5. Management.

Juniper: Juniper ISG-2000 firewalls, Juniper, Cisco content server switch (load balancer), Juniper EX switches, Juniper JunOS, Juniper ScreenOS, Juniper M10i, Juniper M7i. Brocade VDX/VCS 6720, 6730, Brocade MLX-4, MLX-8, MLX-16

PROFESSIONAL EXPERIENCE:

Confidential, Chicago, IL

Sr. Network Engineer

Responsibilities:

  • Responsible for implementing, supporting, and maintaining 24x7 network services.
  • Coordinated efforts with Engineer's to ensure all network devices conformed to defined network standards.
  • Designing and Configuration of Corporate network which include configuration network Equipment such as Cisco ASA Firewall, network Switches and Router.
  • Experience in Ethernet Layer 2 devices (switches) and Layer 3 devices (routers).With full Command on Cisco IOS and Administration of Cisco IOS 11.x and 12.1 versions.
  • Experience with moving data center from one location to another location, from Cisco 6500 based data center to both Cisco 6500 & Nexus based data center.
  • Responsible for entire LAN and WAN maintenance and troubleshooting of the company network.
  • Experience in Configuring, upgrading and verifying the NX-OS operation system.
  • Worked extensively in Configuring, Monitoring and Troubleshooting Cisco's ASA 5500/PIX security appliance, Failover DMZ zoning & configuring VLANs/routing/NATing with the firewalls as per the design.
  • Experience working with BGP attributes such as Weight, Local-P, MED and AS-PATH to influence inbound and out bound traffic
  • Involved in Switching Technology Administration including creating and managing VLANs, Port security, Trunking, STP, InterVlan routing and LAN security.
  • Installing and configuring Cisco Security Manager in the server and adding firewall modules to the manager.
  • Ability to perform deep packet inspection by differentiating packet flow with size, protocols, ports and flags and tweak different countermeasures to stop malicious traffic.
  • Performing security audits of perimeter routers, identifying missing ACL’sand experience with Ticket Tools like Remedy, ServiceNow.
  • Configuration & Management of VLANs, 802.1q trunks, VTP, Security policiesand implementing inter VLAN routing.
  • Configured Juniper MX480s, EX8200s, EX4500s, EX4200s, from scratch to match design.
  • Experience in negotiating VPN tunnels using IPsec encryption standards, configuring and implementation of site-to-site VPN and Remote VPN.
  • Involved in complete LAN, WAN, Extranet redesign (including IP address planning, designing, installation, pre-configuration of network equipment, testing, and maintenance) in both Campus and Branch networks.
  • Performing network monitoring, providing analysis using various tools like Wireshark, Solar winds, Cisco Prime within environment.
  • Configured and implemented Remote Access VPN using Cisco's VPN client via IPSEC.
  • Working on Active Directory to add users to new groups and change user's policies.
  • Development of test framework using thePython.
  • Involved in Installing and Configuring a Cisco/Microsoft secure ACS server for AAA authentication (RADIUS/TACACS+).

Environment: Cisco 2948/3560/4500/3560/3750/3550/3500/ switches and Cisco 3640/12000/7200/ 3845/3600/2800 routers, Cisco Nexus 7K/5K, Cisco ASA 500, F5 BIGIP LTM, RIP, OSPF, BGP, EIGRP, LAN, WAN, VPN, HSRP

Confidential, Vernon, CA

Sr. Network Engineer

Responsibilities:

  • Configured Routing protocols such as RIP, OSPF, EIGRP, static routing and policy based routing.
  • Team member of Configuration ofCisco7206 router with VPN and Configuration of Catalyst switches.
  • Configuration 7500, 7200 with OSPF and catalyst 6505, 4500, 3550 switches with various VLAN.
  • This global role helped expand my expertise into other areas such as Cisco UCS, Checkpoint Firewalls, Cisco ASA, and VMware NSX.
  • Deploying Site to Site VPN’s, Cisco Any Connect VPN Clients and SSL based Citrix Clients is part of my daily activities.
  • Worked on merging network of Newmont and its IT partner Infosys by deploying Site to Site VPN’s.
  • Extensively worked with different senior engineers in troubleshooting SAN/VMware related issues.
  • Use and maintain routing protocols EIGRP, OSPF and BGP on the ISR Router models like 2951, 3845, 3945, 7206 in the network & also worked on BGP Route Reflectors, Confederations.
  • Configured a large-scale HSRP solution to improve the uptime of collocation customers, in the event a core router became unreachable.
  • Installed and configured firewalls, IPS, IPSec VPNs and various screens for intrusion prevention on Juniper SRX equipment.
  • Install, turn-up and configured Juniper hardware for Matrix & CPA test labs; routers, switches and test equipment.
  • Test network resilience & failover by oversubscribing links, capacity planning, apply vendor software updates.
  • Write MoPs to configure Juniper and Tellabs interfaces 10Ge Trunks, OSPF, CoS, QoS, VPLS, EVPL, RSVP.
  • Juniper hardware support of MX960e, MX480e, M10, M120, M320, T1600, T640, and Tellabs 8860.
  • Managed Datacenter of F5 load balancers, Cisco 4500, Juniper M120 and Extreme switches.
  • Support for Juniper M120 & J series, Cisco 3745, 6500, Extreme Summit, GPRS CGSN, Memotec switch.
  • Devised and Implemented procedures for configuration and management of up to 400 Juniper Ex3300 access switches, including planning and development of a standard configuration template.
  • Upgrade network equipment, software and hardware components and system configuration.
  • Maintain technical detailed documentation of LAN and WAN systems and applications.
  • Install and configure two new Juniper switch environments. The new models; Juniper EX4200 & EX4550 switches. The EX4200s to become their new CORE switches and the EX4550 for customer's new Storage environment.
  • Configuring & managing around 500+ Network &Security Devices that includes Cisco Routers & Switches, Nexus Switches, Juniper and Palo Alto Firewalls, F5 Big IP Load balancers, Blue Coat Proxies.
  • Security policy review and configuration in Palo Alto and Juniper SRX Firewall in Datacenter.
  • Deploying Layer 2 security in Server Farms by configuring switch for 802.1x port based authentication.
  • Involved setting up the TFTP server for backing up the IOS images and configuration files of Cisco Routers and Switches and troubleshooting the file servers.
  • Generating RCA (Root Cause Analysis) for critical issues of layer1/layer2/layer3 problems.
  • Configured QOS parameters in Nexus 9k (9500) Switches.
  • Hands on experience with ticketing tools such as Service now and Toro.
  • Participated in quality system implementation project.

Environment: Cisco 2948/3560/4500/3560/2960/6500 switches and Cisco 3640/ /3845/3600/2800/ ASR 9001, Catalyst 3850/4500/6K/9K switches, OSPF, BGP, EIGRP, LAN, WAN, VPN, Cisco ASR 1001/ISR 7206/3845/3945/2951 routers, NEXUS 7010,5020, 2248/6500/4500/3750/3850 switches, TACACS, ASA 5580/5505/5520 , VMware NSX Edges, Cisco ACE.

Confidential, Edison, NJ

Sr. Network Engineer

Responsibilities:

  • Working with Network Design and implementation teams on various projects across North America and South America.
  • Experience with manipulating various BGP attributes such as Local P, MED, Extended Communities, Route-Reflector clusters, Route-maps and route policy implementation.
  • Experience with design and implementation of Data center migration.
  • Deploying and decommission of VLANs on core ASR 9K, Nexus 7K, 5K and its downstream devices.
  • Performed OSPF, BGP, DHCP Profile, HSRP, IPV6, IPV4 Bundle Ethernet implementation on ASR 9K redundant pair.
  • Assisted in MPLS migrations, implemented a backup for the existing WAN connection using site-to-site IP sec VPN tunnels.
  • Configuring RIP, OSPF and Static routing on Juniper M and MX series Routers.
  • Experience working with Cisco IOS-XR on the ASR9000 devices for MPLS deployments.
  • Experience with migrating from OSPF to BGP WAN Routing protocol.
  • Installation and Configuration of Cisco Catalyst switches 6500, 3750 & 3550 series and configured routing protocol OSPF, EIGRP, BGP with Access Control lists implemented as per Network Design Document and followed the change process as per IT policy It also includes the configuration of port channel between core switches and server distribution switches.
  • Experience with setting up MPLS Layer 3 VPN cloud in data center and working with BGP WAN towards customer.
  • Configuration 7609, 7606 with OSPF and catalyst 6505, 4500, 3550 switches with various VLAN.
  • Create and testCisco router and switching operations using OSPF routing protocol, ASA Firewalls, and MPLS switching for stable VPNs.
  • 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 BPDU Guard, port-fast, uplink fast and other spanning tree features.
  • Configuration and troubleshooting of Cisco 2500, 2600, 3000, 6500, 7500, 7200 Series routers.
  • Experience in WAN technologies like T1/T3, DS3, STM1 and STM4 circuit types.
  • Configured Security policies including NAT, PAT, VPN, Route-maps and Access Control Lists.
  • Worked on F5 LTM, GTM series like 6400, 6800, 8800 for the corporate applications and their availability.
  • Worked on Cisco Routers, Active /Passive Hubs, Switches, Cisco PIX Firewall, Nortel VPN Concentrators TCP/IP, NAT and Checkpoint ESX/GSX firewall.
  • Responsible for all routing, switching, VPN, network security, and server load balancing.
  • Using PBR with Route Maps for route manipulation/filtering. Troubleshooting routing issues like suboptimal routing and asymmetric routing.
  • Have created lot of site to site IPSEC VPN tunnel with Checkpoint, Juniper Netscreen firewalls and Cisco ASA firewalls.
  • Configuring HSRP between VLANs, Configuring Ether-Channels, Port Channel on 6500 catalysts.
  • 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 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.
  • Worked on migration of existing PIX firewall to ASA firewall, PIX OS upgrade from 6.3 to 7.0.
  • Purchased, built, configured, managed and maintained DOCSIS cable modem ISP in two markets in NY and NJ.
  • Transformed data for migration in different forms like XLS/XML/database tables using Perl and Python
  • Hands-on experience of Python scripting, automation using Python, string parsing, libraries etc.

Environment: 6500/3750/3550/3500/2950 switches, Juniper (M320, T640), Cisco 7200/3845/3600/2900 routers, TACACS, EIGRP, RIP, OSPF, BGP, VPN, MPLS, Ether Channels. ASR 9001/ASR 1006 routers, Catalyst 3850/4500/6K/9K switches, Cisco Nexus 7K/5K/9K, Cisco ASA 500, Checkpoint, F5 BIGIP LTM.

Confidential

Network Engineer

Responsibilities:

  • Configured Routing protocols such as RIP, OSPF, EIGRP, static routing and policy based routing.
  • Team member of Configuration ofCisco7206 router with VPN and Configuration of Catalyst switches.
  • Create and testCisco router and switching operations using OSPF routing protocol, ASA 5500 Firewalls, and MPLS switching for stable VPNs.
  • Troubleshooting the Network Routing protocols (BGP, EIGRP and RIP) during the Migrations and new client connections.
  • Configuration and troubleshooting link state protocols like OSPF in single area and multiple areas.
  • Redesign of Internet connectivity infrastructure for meeting bandwidth requirements.
  • 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.
  • Configured BPDU Guard, port-fast, uplink fast and other spanning tree features.
  • Configuration and troubleshooting of Cisco 2500, 2600, 3000, 6500, 7500, 7200 Series routers.
  • Strong working knowledge of Nexus 5K/7K /2K.
  • Deploying Layer 2 security in Server Farms by configuring switch for 802.1x port based authentication.
  • Implemented, configured BGP WAN routing, converting OSPF routes to BGP (OSPF in local routing).
  • Technical assistance for LAN/WAN management and complex customer issues.
  • Provided support for troubleshooting and resolving Customer and user reported issues.
  • Worked with Network Engineer’s in the installation and configuration of firewalls.
  • Performed route redistribution & manipulated route updates using distribute lists, route-maps & administrative distance, offset-lists.
  • Involved setting up the TFTP server for backing up the IOS images and configuration files of Cisco Routers and Switches and troubleshooting the file servers.
  • Designed and implemented DMZ for Web servers, Mail servers & FTP Servers using Cisco ASA5500 Firewalls.
  • Generating RCA (Root Cause Analysis) for critical issues of layer1/layer2/layer3 problems.
  • Provided redundancy to the network, implemented hot standby routing protocol (HSRP) and Load sharing for effective utilization of routers.
  • Cisco ASA/Checkpoint Firewall troubleshooting 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.
  • Responsible for Cisco ASA 5500 firewall administration, Rule Analysis, Rule Modification.
  • Generating RCA (Root Cause Analysis) for critical issues of layer1/layer2/layer3 problems.

Environment: Nexus 2K/5K/7K, F5 Big-IP LTM-6400 load balancer, Checkpoint R75, Cisco ASA 5500 LAN, WAN, HSRP, RIP, OSPF, BGP, EIGRP, VLAN, MPLS, STP, RSTP.

Confidential

Network Engineer

Responsibilities:

  • Migration of RIP V2 to OSPF, BGP routing protocols.
  • Configured EIGRP for Lab Environment.
  • Working with Client teams to find out requirements for their Network Requirements.
  • Designing solutions for frozen requirements using Cisco Routers and Switches.
  • Deploying the network infrastructure to meet the requirements.
  • Providing technical consultancy for better application response using QoS.
  • Monitor performance of network and servers to identify potential problems and bottleneck.
  • Performed RIP, OSPF, BGP EIGRP routing protocol administration.
  • Responsible for monitoring and reporting error incidents for remote location servers.
  • Experience in Active Directory, GPOs, DNS, DHCP, File & Print Server, IIS (Web Server), FTP, Terminal Server, RIS, RRAS, NAT, WSUS, Microsoft Clustering, Exchange Mail Server and ISA Server installation, configuration and maintenance.
  • Responsible for maintaining Active Directory applications.
  • Installation and configuration of DNS, DHCP, IIS WEB and FTP servers
  • Responsible for report generation of Daily, weekly to tape, differential and incremental, and Monthly backups of remote database servers.
  • Experience testing and troubleshooting layer1 circuit, layer 2 devices and WAN connections establishment and protocol debugging.
  • Real time monitoring and network management using Cisco Works LMS.
  • Configuring of IP Allocation and sub netting for all applications and servers and other needs throughout company using FLSM, VLSM addressing.
  • Troubleshooting multiple types of high capacity WAN links involving MPLS LSPs, MPLS VPNs and IPsec VPNs.
  • Working on network investigation tickets involving network issues that are not captured by monitoring consoles that require detailed investigation and troubleshooting.
  • Analyzing packet capture to drill down and to find the root cause of latency related and other strange application behavior.
  • Perform routine network maintenance checks as well as configure and manage printers, copiers, and miscellaneous network equipment.

Environment: Microsoft Windows servers 2003/2008, Active Directory 2003/2008, TCP/IP, WINS, DNS, DHCP, FTP, Cisco 2600/2800/3600 routers, HSRP, RIP, OSPF, BGP, EIGRP, VLAN, MPLS, STP, RSTP.

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