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Sr. Network Engineer Resume

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Montville, NJ

SUMMARY:

  • 7 years of experience in Networking, including hands - on experience in providing network support, installation and analysis for a broad range of LAN / WAN/ MAN communication systems.
  • Proficient in Cisco IOS for configuration & troubleshooting of routing protocols: MP-BGP, OSPF, EIGRP, RIP, BGP v4, MPLS.
  • Hands on experience in configuring Cisco Catalyst 2960, 3750, 4500, 6500 and Nexus 3000, 5000, 6000, 7000 series switches and Cisco 2600, 2800, 3600, 3800, 7200, 7600 series routers, Load Balancers & Cisco Firewalls
  • 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.
  • 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.
  • Configuring, Administering and troubleshooting the Checkpoint, Palo Alto, and ASA firewall.
  • Configuration of Network and Security devices such as Cisco routers and switches (Cisco
  • 7600/3500/Nexus 7K/5K), Firewall (Checkpoint R75/Gaia and Cisco FWSM), Load Balancers and DNS and IP Manager (Infoblox)
  • Experience in working with Nexus 7K, 5K, 2K devices.
  • Experience in testing Cisco routers and switches in laboratory and deploy them on site production.
  • Cisco UCS, switching and routing equipment. F5 3900 and Viprion load balancers
  • In-depth knowledge and hands-on experience in Tier II ISP Routing Policies, Network Architecture, IP Subnetting, VLSM, TCP/IP, NAT, DHCP, DNS, FT1 / T1 / FT3 / T3 SONET POS OCX / GigE circuits, Firewalls.
  • Strong knowledge of TACACS+, RADIUS implementation in Access Control Network.
  • Experience in Designing and assisting in deploying enterprise wide Network Security and High Availability Solutions for ASA.
  • F5 Viprion/LTM load balancers
  • Configuration of F5's Big IP for Application Load Balancing.
  • Worked extensively in Configuring, Monitoring and Troubleshooting Cisco's ASA 5500/PIX security appliance, Failover DMZ zoning & configuring VLANs/routing/NAT with the firewalls as per the design.
  • Knowledge in preparing Technical Documentation and presentations using Microsoft VISIO/Office.
  • Worked with F5s Big-IP 6900 Series Platform and the Viprion 2400.
  • Excellent customer management/resolution, problem solving, debugging skills and capable of quickly learning, effectively analyses results and implement and delivering solutions as an individual and as part of a team.
  • Experience in designing MPLS VPN and QoS for architecture using Cisco multi-layer switches.
  • Configuring BGP/OSPF routing policies and designs, worked on implementation strategies for the expansion of the MPLS VPN networks.
  • Excellent customer management/resolution, problem solving, debugging skills and capable of quickly learning, effectively analyzing results and implement and delivering solutions as an individual and as part of a team.
  • Expertise in creating groups and pruning traffic flow using VLAN, VTP, ISL, 802.1Q.
  • Working experience with REMEDY, HP OPENVIEW for ticket change management process.
  • Excellent in documentation and updating client’s network documentation using VISIO.

TECHNICAL SKILLS:

Routers: Cisco 7600, 7200, 3800, 3600, 2900, 2800, 2600,1800,1700

Routing: OSPF, EIGRP, BGP, RIP v1/v2, PBR, Route Filtering, Redistribution, Summarization, and Static Routing.

Switches: Nexus 2K/5K/7K, Cisco Catalyst 2900, 3500, 3700,6500, 4500, 3850,3560, 3750, 2960

Switching: LAN, VTP, STP, PVST+, RPVST+, Inter VLAN routing & Multi-Layer Switch, Ether channel, Transparent Bridging.

Network Security: Cisco ASA 5540, ACL, IPSEC,F5 Load Balancer, Checkpoint, Palo Alto

Load Balancer: F5 Networks (Big-IP) LTM 8900 and 6400.

LAN: Ethernet (IEEE 802.3), Fast Ethernet, Gigabit Ethernet

WAN: PPP, HDLC, Channelized links (T1/T3), Fiber Optic Circuits, Frame Relay, VOIP

Gateway Redundancy: HSRP and GLBP

Various Features & Services: IOS and Features, IRDP, NAT, SNMP, SYSLOG, NTP, DHCP, CDP, TFTP, FTP.

AAA Architecture: TACACS+, RADIUS, Cisco ACS.

Network Management: Wireshark, SNMP, Solarwinds

PROFESSIONAL EXPERIENCE:

Confidential, Montville, NJ

Sr. Network Engineer

Responsibilities:

  • 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, 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.
  • Configuring and installing 6500, 4500 in Campus networks.
  • Experience with WCS predictive maps and RF Engineering Planning.
  • 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.
  • 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.
  • Deployment and support of F5 LTM/GTM 1600, 3600, 6900 and Viprion Chassis running OS versions 9.x through 11.x.
  • 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.
  • Managed IP address DNS and DHCP for the network using InfoBlox.
  • 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.
  • Operating F5 Big IP and VIPRION systems.
  • Installed high availability Big IP F5 LTM and GTM load balancers to provide uninterrupted service to customers.
  • 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.
  • 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.
  • 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.
  • Created new DHCP scopes and reserved DNS entries for IPs using InfoBlox
  • 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/ 0/ 3845/3600/2800 routers, Cisco Nexus 7K/5K, Cisco ASA 500, Juniper, Checkpoint, windows server 2003/2008: F5 BIGIP LTM, RIP, OSPF, BGP, EIGRP, LAN, WAN, VPN, HSRP

Confidential, San Francisco, CA

Sr. Network Engineer

Responsibilities:

  • Configured RIP, PPP, BGP and OSPF routing.
  • Involved in the configuration & troubleshooting of routing protocols: MP-BGP, OSPF, LDP, EIGRP, RIP, BGP v4. Configured IP access filter policies.
  • Identify, design and implement flexible, responsive, and secure technology services
  • Created standard access lists to allow SNMP, NTP and logging servers.
  • Documented new VPN enrollments in a database and create standard procedures for further improvement.
  • Troubleshoot traffic passing managed firewalls via logs and packet captures
  • Managed fast Layer 3 switched/routed LAN/WAN infrastructure as a part of Network team. The LAN consisted of Cisco campus model of Cisco 3550 at access layer, Cisco 6513 at distribution/core layer.
  • ConfigureVRRP & GLBP andVLANTrunking802.1Q & ISL, STP, Port Security on Catalyst 6500 switches.
  • Negotiate VPN tunnels using IPSec encryption standards and also configured and implemented site-to-site VPN, Remote VPN.
  • 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.
  • Experience deploying BIG-IP F5LTM Load Balancers for load balancing and traffic management of business application.
  • Configuring F5 LTM 8950, 6900, VIPRION 2400 models.
  • Modified internal infrastructure by adding switches to support server farms and added servers to existing DMZ environments to support new and existing application platforms.
  • Responsible for Checkpoint and Cisco ASA firewall administration across global networks.
  • Generating RCA (Root Cause Analysis) for critical issues of layer1/layer2/layer3 problems.
  • Co-ordinated with the Data Network and Security team and came up with possible solutions.
  • Work on Physical site Inventory verification, gather information of various Cisco Network devices and Security Devices to develop Run book and Spec Book.
  • Configuration of F5's Big IP for Application Load Balancing.
  • 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.
  • BIG-IP products and VIPRION Chassis. Network planning of the racks and the devices along with assigningd
  • Configuration and troubleshooting of Cisco catalyst 6509, 7613 with supervisor cards.
  • Experience with implementing and maintaining network monitoring systems (Cisco works and HP Open view) and experience with developing complex network design documentation and presentations using VISIO
  • Estimated Project costs and created documentation for project funding approvals.
  • Monitoring and troubleshooting network issues between client site and 85 remote sites with legacy switches and routers
  • Performed and presented network analysis as a part of network migration. Involved in knowledge transfer to vendors and provided them network support as required
  • Worked as a single point of contact for the whole migration
  • Configuration and maintenance of EIGRP and BGP network on router 7200 and 6500 MLS.
  • Configuration and maintenance of 3750 stack and 6500 VSS for improved efficiency of the data plane.
  • Configuration and management of NEXUS network in the existing network infrastructure.
  • Created LAB setup with 7k and 5K NEXUS switches for application testing.

Environment: Cisco 3750/3550/3500/2960 switches and Cisco 3640/ 0/ 3845/3600/2800 routers, Cisco ASA5510, Checkpoint, Palo Alto, Cisco Nexus7K/5K, 2248/3560/5020/6509, ASA, Checkpoint, LAN, OSPF, BGP, RIP, EIGRP

Confidential, Jersey City, NJ

Network Engineer

Responsibilities:

  • 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.
  • Upgrade Cisco Routers, Switches and Firewall (PIX) IOS using TFTP
  • Performed basic security and ACL administration on Juniper SRX firewalls. That includes day to day rule deployment, troubleshooting using data flow analysis and packet capture.
  • 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.
  • 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.
  • 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.
  • Handled Tech Support as it relates to LAN & WAN systems.

Environment: Net Flow,TACACS,EIGRP,RIP,OSPF,BGP,VPN,MPLS,CSM,SUP720, Channels, Cisco 3845/3600/2800 routers,Cisco 6509/ 3750/3550/3500/2950 switches

Confidential

Network and System Engineer

Responsibilities:

  • Provided estimated bandwidth requirements for data replication, to best determine adequate timing for migration service levels
  • Configuring HSRP between VLANs, Configuring Ether-Channels, Port Channel on 6500 catalyst
  • Switches Replace branch hardware with new 2851 routers and 2960 switches.
  • Implemented WLAN Aruba Wireless Access Points and its Controllers at various corporate sites fort 11n Infrastructure and its legacy technologies.
  • Experience in working with Cisco Nexus 5000 series switches for data center.
  • Configured OSPF on CISCO devices with multiple routing processes and redistributed them. Tested and hands on experience in multi area OSPF topologies.
  • Configuring RIP, OSPF and Static routing on JuniperRouters.
  • Hands on experience with Juniper EX-Series Ethernet Switches.
  • 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 ( 4500, 1700, 2600 and 3500 series), to include: bridging, switching, routing, Ethernet, NAT, and DHCP, as well as assisting with customer LAN /MAN, router/firewalls.
  • Wrote IOS and CAT OS upgrade procedures and Pre/Post checks for customer production upgrades.
  • Excellent Troubleshooting Skills and Customer Centric approach.
  • 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 VLANs, VTP’s, enabling trunks 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.
  • 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.

Environment: Cisco routers, J TACACS, EIGRP, RIP, OSPF, BGP.

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