SUMMARY

• 7 years of experience in Network Engineering and Administration.
• Experience in designing, installing, configuring and maintenance of network equipment such as routers, Switches, Firewalls, Wireless access points and Load Balancers.
• Expert level knowledge of troubleshooting, implementing, optimizing and testing of static and dynamic routing protocols such as EIGRP, OSPF, BGP with ability to interpret and resolve complex route table problems.
• Administration and diagnostics of LAN and WAN with in - depth knowledge of TCP/IP, NAT, PPP, ISDN and network protocols and services.
• Expertise in implementation and troubleshooting of protocols such as HSRP, VRRP, GLBP, IGMP, SNMP, MPLS.
• Strong knowledge of Cisco IOS, NX-OS and Juniper software (IOS/XR and JunOS) and hardware.
• Working knowledge of network services such as DHCP and DNS.
• Working knowledge of enterprise routing and switching (layer 2 and layer 3) includingIEEE 802.1Q, 802.3ad, configuration and maintenance of GRE and IPsec Tunnels.
• Experience with QOS on multicast VPN, site-to-site and remote access VPN solutions.
• Expertise with IPV4/IPV6, implementation of Sub-netting, Ping Concepts, VLSM & ARP, Reverse & Proxy ARP.
• Strong knowledge in implementing Layer-2 level technologies including VLAN, VTP, STP/RSTP, inter-vlan routing, and configuring security policies including IDS/IPS, NAT/PAT, VPN and ACL’s.
• Strong hands on experience in installing, configuring & troubleshooting of Cisco Nexus 9k, 7k, 5k, 2k, Cisco 7600, 7200, 3900, 2800 series Routers, Catalyst 6500, 4500, 2960 switches and 3750, 3850 Stack Switches.
• Experience in installing, configuring and troubleshooting of Juniper EX-2200, EX-4500 Switches and Juniper SRX-210, SRX-240 firewalls.
• Experience deploying BIG-IP F5 LTM/GTM Load Balancers for load balancing and traffic management of business applications.
• Experience in risk analysis, security policy, rules creation and modification of Cisco ASA, Juniper SRX, Palo Alto and Checkpoint Firewalls.
• Experience with configuring wireless infrastructure and Voice-over Internet Protocol (VoIP).
• Experience with monitoring tools such as SolarWinds and Wireshark to monitor network behavior and quickly respond to issues as they are reported and resolve them.
• Well experienced in using Microsoft Excel & Visio for documentation and creating network diagrams.

TECHNICAL SKILLS

Routing Technologies: Static Routing, RIPv2, EIGRP, OSPF, BGP, MPLS, TCP/IP, UDP, IPSec, MPLS, Route Redistribution.

Switching: LAN/WAN, VTP, STP, PVST+, Inter VLAN routing, Multicast operations, Ether Channels, Port Security.

Routers: Cisco 7600, 7200, 3900, 2800, 2600 series & Juniper MX series.

Switches: Cisco Catalyst 6500, 4500, 2960 and 3750, 3850 Stack Switches, Nexus 9k, 7k, 5k, 2k.

Firewalls: Cisco ASA, Palo Alto, Check Point, Juniper SRX.

Security: AAA, TACACS, RADIUS, IDS/IPS, IPSec VPN, GRE VPN, DMVPN, ACL’s.

Load Balancer: F5 BIG-IP LTM, GTM modules.

Monitoring Tools: SolarWinds, Infoblox, and Wireshark.

Programming Languages: C, Python.

PROFESSIONAL EXPERIENCE

Network Engineer

Confidential, Columbus, Ohio

Responsibilities:

• Responsible for Design and implementation of various routing protocols such as EIGRP, OSPF and BGP across networks in multiple locations.
• Involved in LAN, WAN, Extranet design, IP address planning, designing, installation, pre configuration of network equipment, testing, and maintenance in both Campus and Branch networks.
• Installing, configuring and troubleshooting of Cisco Routers (ASR 1K, 7200, 3945, 3845, and 2900) and cisco 6500, 4510, 3850, 3750 switches to perform functions at the Access, Distribution and Core layers.
• Responsible for Cisco ASA firewall administration across networks and support customers with the configuration and maintenance of the firewall systems.
• Configuring, Monitoring and Troubleshooting Cisco's ASA 5585 security appliance, Failover DMZ zoning and configuration of VLANs/routing/NATing with the firewalls as per the design.
• Worked extensively on Cisco ASA 5500 series firewalls and experience with deploying rules to Cisco ASA solution.
• Configuring and Maintenance of Palo Alto 5000 series Firewalls & their rules.
• Worked on F5 LTM, GTM series like 6800, 8800 for the corporate applications and their availability.
• Experience with configuring Virtual Servers and Configuring Load balancing methods in F5 LTM Modules.
• Provided Load Balancing towards Access layer from Core layer using F5 network Load balancers.
• Experience working with wireless technologies troubleshooting and configuration.
• Configuring BGP on the branch routers peering with service providers for redundancy as a part of the branch network resiliency project.
• Establishing VPN Tunnels using IPsec encryption standards and also configuring and implementing site-to-site VPN, Remote access VPN.
• Actively involved in Switching Technology Administration, including creating and managing VLANS, Port security- 802.1x, Trunking 802.1Q, RPVST+, Inter-VLAN routing, and LAN security on Cisco Catalyst 6509-E, 4509-E and Nexus 2232, 5596, 7010 switches.
• Configuring GLBP, VLAN Trunking 802.1Q, STP, Port security on Catalyst 6500 switches.
• Responsible for Checkpoint and Cisco ASA 5500 firewall administration across our global networks.
• Maintaining Checkpoint firewall security policies including NAT, VPN and Secure Remote access.
• Implemented and maintained Tipping point intrusion detection/prevention (IPS/IDS) to protect enterprise network and sensitive corporate data.
• Worked as a part of the migration team responsible for setting up new datacenter setup.
• Analyze/resolve bandwidth and slow connection issues relative to user applications using SolarWinds and Netflow.
• Enabled STP attack mitigation (BPDU Guard, Root Guard), using MD5 authentication for VTP, disabling all unused ports and putting them in unused VLAN and ensuring DHCP attack prevention where needed.
• Performed Port channeling and LACP between downstream devices for VPC configuration.
• Experience in configuring VDC, fex pinning, fex port-channel, peer keep alive, peer link.
• Experience with designing configurations for VPC, OTV, and Fabric path.
• Experience configuring VPC, VDC and ISSU software upgrade for Nexus 7010.
• Resolving network issues, running test scripts and preparing network documentation as a part of regression testing.
• Providing Level 3 support to customers, resolving issues by attending to conference calls.
• Designed, validated and implemented LAN, WLAN & WAN solution to suite client's needs.
• Deployed a large-scale HSRP solution to improve the uptime of collocation customers, in the event of core router becoming unreachable.

Network Engineer

Confidential, Columbus, OH

Responsibilities:

• Involved in the configuration of BGP as a WAN protocol, and OSPF/EIGRP as interior routing protocol.
• Responsible for turning up BGP peering and customer sessions, as well as debugging BGP routing problems.
• Configured EBGP/IBGP policies and also tested BGP attributes such as Local preference, MED, AS-PATH, Community and Weight.
• Configured and designed LAN networks with Access layer switches such as Cisco 4510, 4948, 4507 switches.
• Setting up VLANS, Port channel and configuring trunk between Switches.
• Worked on basic and advance F5 load balancer configurations and general troubleshooting of the F5 load balancers.
• Provide Tier II Load Balancer expertise on F5 Big-IP Local Traffic Managers (LTM). Designing F5 solutions/ support for migration work of applications and websites from Cisco CSS Load Balancers to the F5 Big-IP Load Balancers.
• Implemented and configured OSPF and BGP.
• Configured inter-vlan routing, redistribution, access-control lists and Network Address Translation (NAT).
• Upgraded IOS on the different Cisco ASA firewalls like 5510, 5520 and 5585.
• Experience with Juniper: EX-2200, EX-4500 and M Series, SRX210 and SRX240 firewalls.
• Experience configuring Virtual chassis for Juniper switches EX-4200 and HA pairs on Firewalls SRX-240/SRX-550.
• Experience with migrating from Cisco ASA 8.2 version to Cisco ASA 8.4 Version.
• Installed and configured Palo Alto-3060 firewalls to protect Data Center and provided L3 support for routers/ switches/ firewalls.
• Involved in Configuration of Access lists (ACL) on Juniper and Palo Alto firewall for the proper network routing for network connectivity.
• Configuring BGP/OSPF routing policies and designs, worked on implementation strategies for the expansion of the MPLS VPN networks.
• Configured IPsec and SSL VPN on Palo Alto and Juniper SRX Firewalls.
• Design and implement OSPF Areas for reliable Access Distribution and for Core IP Routing.
• Responsible for new site setup, migration of existing point to point circuits to an MPLS based solution.
• Involved in designing and applying QOS and policy map to 2800 series routers for all the branches.
• Experience on designing and troubleshooting of complex BGP and OSPF routing problems.
• Experience with configuring Nexus 2000 Fabric Extender (FEX) which acts as a remote line card (module) for the Nexus 5000.
• Implementing VoIP solutions using SIP & H.323, and designing wireless infrastructure.
• Implement Port open requests for various business units and vendors to allow or deny access to various servers/applications in our datacenters.
• 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.

Network Specialist

Confidential, Chicago, IL

Responsibilities:

• Configured and designed LAN networks with Access layer switches such as Cisco 4510, 4507 switches.
• Performed network engineering, design, planning (WAN & LAN) & implementation.
• Studied single point failures & designed WAN structure in such a way that there are no failures in network in case of any device or link failure.
• Configured VLANs on a switch for inter-VLAN communication and also Configured VLAN Trunking Protocol (VTP) on Core Switches.
• Performed switching technology administration including VLANs, inter-VLAN routing, Trunking, STP, RSTP, port aggregation & link negotiation.
• Involved in troubleshooting of DHCP and other IP conflict problems.
• Configured EIBGP load balancing and ensured stability of BGP peering interfaces.
• Working on Cisco 6509 and 4507 series switches for LAN requirements that includes managing VLANs, Port Security and troubleshooting LAN issues.
• Configuring, maintaining and troubleshooting of Net Screen, Palo Alto, and Cisco ASA Firewalls.
• Experience with Configuring ASA Firewall and accept/reject rules for network traffic.
• Making configuration change recommendation for routers, switches, and firewalls
• Involved in designing L2VPN services and VPN-IPSEC authentication & encryption system.
• Worked on installation, maintenance and troubleshooting of LAN/WAN (Frame Relay, NAT, DHCP, TCP/IP)
• Experience in HSRP standby troubleshooting & Experience in configuring & upgrading of Cisco IOS.
• Implementing & Troubleshooting of T1, MUXES and CSU/DSU and data circuits.
• Configuration of Access List ACL (Std, Ext, Named) to allow users all over the company to access different applications and blocking others.
• Dealt with NAT configuration and its troubleshooting issues and DNS/DHCP issues within the LAN network.
• Responsible for technical documentation and Visio Drawings for the implemented projects.
• Involved in attending meetings and technical discussions related to current project.
• Provide Tier 3 network support and troubleshooting with limited supervision.
• Resolved network issues, ran test scripts and prepared network documentation.

Junior Network Engineer

Confidential

Responsibilities:

• Configured Cisco Routers for OSPF, RIPv2, EIGRP, Static and default routes.
• Configured and debugged policy based routing for special traffic, route filtering with route maps, route redistribution.
• Experienced in Configuration of Cisco Routers 2500, 3000 using RIP, OSPF, EIGRP and Cisco Switches 2960 and 3560.
• Configured Access-Control Lists (ACL) to allow or block users to access different applications.
• Dealt with network layer tasks that included configuration of IP Addressing using FLSM, VLSM for all applications and servers throughout the company.
• Hands on Experience on Installation and configuration of workstations for IP based LAN's.
• Experience in Installation and configuration of DHCP Client/Server.
• Worked in Configuration and extension of VLAN from one network segment to other segment between different vendor switches including Cisco and Juniper.
• Broad Hands on Experience in Inter-VLAN routing, redistribution, access-lists and dynamic NAT.
• Implemented Spanning Tree Protocol (STP) to avoid looping in switching environment
• Efficient in cabling as per co-location contracts with loop-back testing, including all DS1, DS3, T1, T3, CAT 6 and CAT 5 connections as per defined cabling procedures.
• Hands on Experience in Configuring L2 and L3 security features on devices.
• Responsible for implementation and maintenance of customer’s network infrastructure.
• Maintenance and troubleshooting of network connectivity problems using Ping, Trace Route.