PROFESSIONAL SUMMARY:

• Over all 8 years of experience in routing, switching, system design, implementation and troubleshooting of complex network systems as well as understanding on firewall technologies.
• Switching tasks include VTP, ISL/ 802.1q, IPSec VPN Tunneling, VLANs, Ether Channel, Trunking, Port Security, STP and RSTP.
• Experience working with Nexus 7010, 5020, 2148, 2248 devices.
• Good knowledge with the technologies VPN, WLAN and Multicast.
• Well Experienced in configuring protocols HSRP, GLBP, ICMP, IGMP, PPP, PAP, CHAP, and SNMP.
• Experience in configuring Site - to-site and remote access VPN solutions.
• Has very strong experience on Cisco routers (800, 1700, 1800, 2600/2600XM, 2800, 3600/3600XM, 3700, 3800, 7200), switches (2950, 2960, 3550, 3570, 4510R, 6500, MDS 9000 SAN, 5000 NX-OS), VPN concentrators 3000 series, ACS 4.1, Cisco PIX (501, 506E, 515/515E, 525, 535) firewalls, ASA (5505, 5510, 5520), IDS and IPS (4235, 4250).
• Oversee maintenance and support of all network infrastructure using Cisco switches, routers, ASA,F5 load balancers, and other typical network vendors.
• Experienced in Cisco Unified Communications (CUCM), Messaging and Telepresence Cisco Unity/Express (CUC), Call Manager v4.x, Cisco Media Convergence Servers 7800 series, IPCC, Fax gateways integrating VoIP, voice/analog, fax, IP Fax and web-based interfaces.
• Extensive experience in configuring and troubleshooting of routing protocols RIP v1/v2, EIGRP, OSPF and BGP.
• Worked on network topologies and configurations, TCP/IP, UDP, Frame Relay, Token ring, ATM, bridges, routers, hubs and Switches.
• Implemented routing protocols (RIPv1/2, IGRP, EIGRP, OSPF, BGP), switching (VLANS, VTP Domains, STP, and trunking), security on devices hardening (authentication, authorization, and accounting).
• Involved in design and deploying various network security & High availability products like Cisco ASA and other security products.
• Good understanding of windows and VMware server automation using scripting language Power shell, VB Script, Power CLI.
• Understanding the JUNOS platform and worked with OS upgrade of Juniper devices
• Excellent communication skills, Enthusiastic, motivated and a team player
• Experience with Change management process and Project documentation tools like Excel and VISIO
• Played various customer interaction roles in various capacities, across projects in different areas.
• A highly organized individual who adopts a systematic approach to problem solving, effectively analyzes results and implements solutions
• Highly motivated with the ability to work independently or as an integral part of a team and Committed to highest levels of professional.
• Knowledge on Cisco Firewalls, Cisco PIX (506E/515E/525/) & ASA 5500(5510/5540) Series.
• In depth understanding of IPV4 and implementation of Sub netting.
• Configured Security policies including NAT, PAT, VPN, Route-maps, prefix lists and Access Control Lists.
• Extensive Experience in WAN Technologies, Switching Technologies along with Failover Mechanisms & Inter VLAN Routing types.

TECHNICAL SKILLS:

Cisco Routers: Cisco L2 & L3 Switches (1700, 1800, 2500, 2600, 3600, 3800, 7200,7600 and ASR1004)(2900, 3560, 3750, 4500, 4900, 6500, Nexus 5K/7K)

LAN Technologies: Ethernet, Fast Ethernet, and Gigabit Ethernet, SMTP, VLAN, Inter-VLAN Routing, VTP, STP, RSTP, Light weight access point, WLC

WAN Technologies: Frame Relay, PPP, HDLC, T1/T3, DS3, OC192

Firewalls: Cisco ASA

OS products/Services: DNS, DHCP, Windows (2000/2003, XP), UNIX, LINUX.

Protocols/Services: Gateway Load Balancing

Routing Protocols (RIP v1 & v2, OSPF, EIGRP, BGP),: HSRP, GLBP

Network Maagement Tools: Wireshark, Netflow Analyzer, NetScout, IBM Netcool, Cisco Works, Ethereal. OPNET Modeler.

Security Server Protocols: TACACS+, RADIUS

Facilities: DS0, DS1, DS3, OCX, T1/T3

Load Balancers: Cisco CSM, F5 Networks (Big-IP)

PROFESSIONAL EXPERIENCE:

Confidential, St. Louis, MO

Sr. Network Engineer

Responsibilities:

• Working on Cisco Catalyst 2960 Switches, ASA (5505/5510) Firewalls.
• Implementing security policies using ACL, Firewall, IPSEC, SSL, VPN, IPS/IDS, AAA (TACACS+ & RADIUS).
• Dealing with monitoring tools like Orion Solar Winds and network packet capture tools like Wire-shark, etc.
• Installation, Configuration and Administration of Windows Servers 2000/2003, Active Directory, FTP, DNS, DHCP, TFTP, Linux OS under various LAN and WAN environments.
• Migration of existing IPSEC VPN tunnels from Pre-Shared key to Certificate.
• Changing both the voice and data environment.
• Review and optimize firewall rules using Secure Track Tufin tool and firewall audit reports
• Configuring and installation of Cisco 2960 Switches and ASA 5505 Firewalls.
• Updating the SNMP string for various Routers and Switches in Solar Winds for monitoring purpose.
• Performing security audits of perimeter routers, identifying missing ACL’s.
• Troubleshooting of complex LAN/WAN infrastructure including routing protocols EIGRP, OSPF & BGP.
• Lab testing & validation prior to implementation of Nexus 7K, 5K & 2K connecting to blade servers.
• Accomplished migration of old F5 Big 1000 Platform to F5 LTM edge gateway 3900 and 1600 platforms.
• Settings of the networking devices (Cisco Router, switches) co-coordinating with the system/Network administrator during implementation.
• Experience in working with Windows power shell scripting to maintain and administrating server environments.
• Used BMC Remedy for creating the Change Requests (CRQ's), Work Orders, Incident Management.
• Experience in a four team on-call rotation in which the on-call engineer is the primary point of contact for all Network related issues, and any Network related change requests (CRQ's)
• Configuring Tufin secure track and network devices for monitoring network rules.
• Settings of the networking devices (Cisco Router, switches) co-coordinating with the system/Network administrator during implementation.
• Configuring network access servers and routers for AAA Security.
• Documentation and change control.
• Implemented the move of IP network ranges, domain changes, and a new VPN for McDermott Inc.
• Performed network analysis and changes on the P&G LANs, utilizing the Confidential ticketing system.
• Worked on troubleshooting of complex LAN/WAN infrastructure.
• Administration of Cisco 11.x and 12.1 versions.
• Responsible for supporting older VMware infrastructure and systems, including ESXi 4 and LabManager.
• Designed and implemented VMware 5 infrastructure, including SAN, hosts, fiber, and networking
• Monitoring all Cisco equipment’s using Cisco Works.
• Involved in SNMP Network management.
• Upgrading and backups of Cisco router configuration files’
• Implementing and maintaining backup schedules.
• Firewall Policy optimization and rule base clean up using Skybox.
• Use Tools such as SKYBOX for Firewall Policy optimization and rule base Clean up.
• Troubleshooting tickets from Service now, during VOIP Rollover.
• Setting up Jabber profiles and Creating Desk phones and DN profiles for the Users using Cisco Call Manager and Cisco Unity.

Environment: Cisco ASA 5505, Catalyst 2960, Nexus 7K, STP, RSTP, VTP, HSRP, BGP, OSPF, EIGRP, SNMP, DNS, DHCP, Cisco Call Manager, Cisco Unity, Orion Solar winds, Linux, Shell, Service now.

Confidential, Burlington, NC

Sr. Network Engineer

Responsibilities:

• Responsible for entire LAN and WAN maintenance and troubleshooting of the company network. Involved in the Team of Data Center Operations to perform duties like administration and deployment of Cisco Routers and Switches according to the organization requirements.
• Performed network administration tasks such as creation and management of VLANS, Port security, Trunking, RPVST+, Inter-VLAN routing, and LAN security
• Worked with ASA Firewall configuration and Participated in Migration of PIX to ASA for hardware devices.
• Worked 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.
• Design and implementation of Networks using TCP/IP
• Configuring RIP, OSPF and Static routing on JuniperM and MX series Routers.
• Experience configuring Virtual Device Context in Nexus 7010.
• Worked on commissioning and decommissioning of the MPLS circuits for various field offices.
• Worked on Confidential open view map for Network Management System and Ticketing.
• Worked on a broad range of topics such as routing and switching, dedicated voice access, planning and implementation, large-scale high-visibility outages, change management coordination, proactive monitoring and maintenance, disaster recovery exercises, and core network repairs.
• Involved in L2/L3 Switching Technology Administration including creating and managing VLANs, Port security, Trunking, STP, InterVlan routing, LAN security.
• Supporting EIGRP and BGP based company network by resolving level 2 &3 problems of internal teams & external customers of all locations.
• Working on Confidential Networks division, making both pre-sales and delivery activities, consulting customers and partners.
• Managed Users for AIX, Solaris, Confidential -UNIX and Linux Servers and assigned rights to access network resources.
• Supported VMware infrastructure environment that supports virtual machines across distributed Development, Test and Production environments.
• Perform and implement CRQ on adding network devices to the environment.
• Created work orders and change of the request (CRQ) to report incidents, outages, changes, and modification to the network using Remedy.
• Installed/updated patches on VMware ESXi hosts using VMware Update Manager tool.
• Responsible for Cisco ASA firewall administration across our global networks.
• Establishing VPN tunnels using IPSec encryption standards and also configured and implemented site-to-site VPN, Remote VPN.
• Utilize skybox to review all shadowed rules to reduce all acls for cleanup .
• Experience in Monitoring network access rules usage on Tufin Secure Track.
• Attend all meetings for new products such as Skybox to help generate usage traffic on the firewalls
• Implementation of MPLS VPN Networks.
• Experience working on Network design and support, implementation related internal projects for establishing connectivity in various field offices and Datacenters
• Writing and developing from scratch Windows Power Shell/PowerCLI scripts for automating procedures within VMware vSphere environment.
• Ensure Network, system and data availability and integrity through preventive maintenance and upgrade.
• 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.
• Experience with different Network Management Tools and Sniffers like SNMP, Confidential -Open view, and Cisco works to support 24 x 7 Network Operation Center.
• Worked on the security levels with RADIUS, TACACS+.
• Use Tools such as Tufin secure track for Firewall Policy optimization and rule base Clean up.
• Configuring VLAN, Spanning tree, VSTP, SNMP on EX series switches
• Providing daily network support for national wide area network consisting of MPLS, VPN and point-to point site.
• Upgrading WAN link using PPP Multilink and by implementing Cisco WAAS
• Configuring HSRP between the 3845 router pairs for Gateway redundancy for the client desktops.
• ConfigureGLBP, VLANTrunking802.1Q, STP, Port Security on Catalyst 6500 switches.
• Experience working with Cisco Nexus2148 Fabric Extender and Nexus5000 series to provide a Flexible Access Solution for data center access architecture.

Environment: Cisco ASA 5540, BIG-IP LTM 8900, QOS, Policy-maps, Class-maps, Nexus, Vlans, STP, RSTP, PVSTP, VTP, HSRP, Ether Channel, BGP, OSPF, EIGRP, MPLS, ATM, PPP, HDLC. SNMP, TACACS+, DNS, DHCP, Shell, Basics of WLA, Linux.

Confidential, Atlanta, GA

Sr. Network Engineer

Responsibilities:

• Worked along with the team in ticketing issues.
• Assisted in troubleshooting LAN & WAN connectivity and hardware issues in the network of 10000 hosts.
• Studied and analyzed client requirements to provide solutions for network design, configuration, administration, and security.
• Troubleshoot problems on a day to day basis & provide solutions that would fix the problems within their Network.
• Deployed VMware VCenter operations manager in the production environment to monitor
• Support customer with the configuration and maintenance of PIX and ASA firewall systems.
• Assisted with various duties that will arise including: implementation, configuration, management, rules definition, problem solving, design advice, troubleshooting, updating, maintenance, etc.
• Implemented Perl scripts for network monitoring tasks.
• Maintenance and Troubleshooting of LAN connectivity problems using Ping, Trace route.
• Worked on F5 BIG-IP LTM 8900, configured profiles, provided and ensured high availability.
• F5 & CSM load balancers deploying many load balancing techniques with multiple components for efficient performance.
• Created several CRQ for configuration change, decommission and installation purpose.
• Managed the IP address space using subnets and variable length subnet masks (VLSM).
• Involved in troubleshooting IP addressing issues and Updating IOS images using TFTP.
• Strong ability to use packet tracing technologies to troubleshoot network issues.
• Experience with configuring BGP, OSPF on 7609 router.
• Maintained redundancy on Cisco 2600, 2800 and 3600 router with HSRP.
• Monitor performance of network and servers to identify potential problems and bottleneck.
• Performed RIP & OSPF routing protocol administration.
• Interacted with support services to reduce the downtime on leased lines.
• 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 issues.

Environment: Switching, Routing, Nexus, Access-lists, Sub netting, STP, RSTP, VTP, Perl, HSRP, Port-Channel, EIGRP, RIP, PPP, HDLC. SNMP, DNS, DHCP

Confidential, Houston, TX

Sr. Network Engineer

Responsibilities:

• Configuring EIGRP, OSPF and Static Routing on Cisco Routers
• Design implementation and support of Networks using TCP/IP
• Upgraded SMUs (Software Maintenance Units) on ASR9K routers.
• Replaced EOL cisco 6509 with cisco 7609 under LDOS Project
• Configured BGP, MPLS, OSPF on 7609 router
• Configured various protocols on E911 routers
• Worked on E911 routers for various regions
• Swapped Cisco 7206VXR with Cisco ASR1004
• Upgraded IOS code on cisco 4900 boxes to newer code
• Upgraded Nexus-OS on Nexus7000 series routers and as well as Nexus 5000 series routers
• Upgraded SUP cards on Nexus 7000 routers
• Have written MOPs and tech-reviewed the MOPs for various platforms
• Worked as On-Call Engineer in the team.

Environment: TCP/IP, Racking, Stacking, VLSM, IP addressing, Sub netting, Routing Protocols.

Confidential

Sr. Network Engineer

Responsibilities:

• Designing solutions for corporate requirements using Cisco Routers and Switches.
• Deploying the network infrastructure to meet the requirements
• Created VLAN and Inter-Vlan routing with Multilayer Switching.
• Completed service requests (i.e. - IP readdressing, bandwidth upgrades, IOS/platform upgrades, and etc)
• Providing technical consultancy for better application response using QoS
• Performed RIP, OSPF, BGP EIGRP routing protocol administration.
• Installed wireless access points (WAP) at various locations in the company.
• Maintained redundancy on Cisco 2600, 2800 and 3600 router with HSRP.
• Migration of RIP V2 to OSPF, BGP routing protocols.
• Developed several Pythonadministrative scripts to automate project deployment process.
• Configured EIGRP for Lab Environment.
• Implemented ISL and 802.1Q for communicating through VTP.
• Working with Client teams to find out requirements for their Network Requirements
• Monitor performance of network and servers to identify potential problems and bottleneck.
• Real time monitoring and network management using Cisco Works LMS.
• Provided technical support on hardware and software related issues to remote production sites.
• Other responsibilities included documentation and support other teams.

Environment: TCP/IP, RIP, Access-lists, LAN/WAN, Trunking 802.1, ISL,Python.

Confidential

Network Engineer

Responsibilities:

• IOS upgrades on Catalyst 1900, 2900, 3500 series switches and 2500, 2600, 3600 series routers.
• Racking, stacking, and cabling network-based, IT systems
• Configuration of Access List ACL (Std., Ext, Named) to allow users all over the company to access different applications and blocking others.
• Configuring of IP Allocation and sub netting for all applications and servers and other needs throughout company using FLSM, VLSM addressing.
• Troubleshot the issues related to routing protocols.
• Perform routine network maintenance checks as well as configure and manage printers, copiers, and other miscellaneous network equipment.
• Installing operating systems, software and hardware on computers.
• Responsible for Data Backup, System Update, Recovery and Restore, and Spyware removal.
• Assisting Junior and Senior Engineers, on-site management of cable-wiring technicians
• Troubleshot problems on a day to day basis and documented every issue to share it with design teams.

Environment: TCP/IP, Racking, Stacking, VLSM, IP addressing, Sub netting, Routing Protocols