SUMMARY

• Network Engineer with Over 7 + years of experience in implementing, design, troubleshooting, migration, optimizing and maintaining of complex network systems.
• Sound knowledge of Routing and switching concepts and MPLS design.
• Worked on Cisco Catalyst Switches 6500/4500/3500 series.
• Extensive understanding of networking concepts, (IE. Configuration of networks, router configuration and wireless security, TCP/IP, VPN, VLANs, and routing in LAN/WAN, Ethernet Port, Patch Panel and wireless networks.)
• Proficient in Cisco IOS for configuration & troubleshooting of routing protocols: MP - BGP, OSPF, LDP, EIGRP, RIP, BGP v4, MPLS
• Knowledge of implementing and troubleshooting complex layer 2 technologies such as VLAN Trunks, VTP, ISL/ 802.1q, Ether channel, Port Security, STP, RSTP and MST.
• In depth understanding of IPV4, implementation of Subnetting and VLSM.
• Implementation, Configuration and Support of Checkpoint (NGX R65, R70 and R71), Juniper Firewalls (SRX5400, SRX5600, and SRX5800), Cisco Firewalls (ASA 5505, 5506-X, 5585), Palo Alto Networks Firewall models (PA-2k, PA-3k, and PA-5 k).
• Implemented traffic filters using Standard and Extended access-lists and Route Maps.
• Well Experienced in configuring protocols HSRP, ICMP, IGMP, PPP, PAP, CHAP, and SNMP.
• Experienced in DNS, DHCP, SMTP, FTP, HTTPS Standardizations and Implementations.
• Familiar with different Wireless standards 802.11 a/b/g and 802.3 standards.
• Extensive experience in upgrade, backup and password recovery of Cisco IOS.
• Experience in troubleshooting both connectivity issues and hardware problems on Cisco based networks.
• Good Knowledge on Blue coat Proxy servers, reverse proxy deployment, LAN & WAN management and performance tools like Wireshark, Solar winds, Opnet, etc.
• Worked on Cisco Firewalls Cisco ASA 5500(5510/5540) Series and Checkpoint R75, 76 Firewalls.
• Experience in documenting and preparing the process related operational manuals.
• Good knowledge on implementing F5 BIG-IP load balancer, F5 GTM based on topology load balancing methods and LTM, GTM series like 6400, 6800, 5000 ad 2000 for the corporate applications and their availability
• Cisco ASA 5510 and 5585-X Series Firewalls, VPNs (Site-to-Site, Remote user), RADIUS, LDAP, and TACACS+
• Proficient in installing and configuring Windows Server 2003, 2008, 2012 and Windows XP, 7 & 8 Professional Client Operating Systems.
• Excellent interpersonal, communication and organizational skills with the ability to interact effectively with employees at all levels within the organization.
• Outstanding analytical ability for new technologies and Internet applications and Able to manage multiple tasks /projects and resolve problems
• 24 x 7 on call support.

TECHNICAL SKILLS

Network Hardware: Cisco routers (1900, 2600, 2800, 2900, 3600, 38003900, 7200, and 7600), Cisco L2 & L3, Juniper routers & firewalls, Cisco ASA, Cisco Checkpoints, Catalyst Switch (2900XL, 2950, 2960, 3560, 3750, 4500, and 6500), Nexus switch (2248, 5548 &7010), Cisco Firewalls and Blue Coat Proxy Servers.

Protocols: Routing (RIP, EIGRP, OSPF, OSPFv2, BGP, Static Routing), MPLS, Summarization, RedistributionSwitching (VLANS, Trunking, Inter-VLAN, STPRSTP), NTP servers, DNS, TFTP server, IEEE 802.1Qand Multi-layer switching.

LAN/WAN Technologies: Ethernet, NAT, PAT, SMTP, DNS, DHCP, Frame-Relay, SNMP, ATM, Metro-Ethernet, ISDN, PPP, HDLC and VPNs.

Wireless standards: 802.11 a/b/g/n, 802.3 standards, WEP.

Security: ACL, address filtering, TACACS+/Radius, port Security, IPsec, SSH and Cisco Access Points.

Load balancer: F-5 BIG-IP LTM (3900 and 8900), F-5 GTM, and Palo Alto- 3060/2050.

Management tools: Cisco works, Wireshark, OPNET Modeler, Putty,Telnet, VMware, Solar winds, MS Office and Visio

PROFESSIONAL EXPERIENCE

Confidential, Mclean, VA

Sr. Network Engineer

Responsibilities:

• Working as Sr. Network Engineer supporting Cisco router, Switches, Firewalls and Blue coat Proxy Servers.
• Responsible for entire LAN and WAN/WLAN 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.
• Mentor and educate team members on various network technologies and equipment
• Configuring and resolving various OSPF issues in an OSPF multi area environment.
• Provide solutions to Tier 1/2 escalated issues, tickets and assessing cabling issues such as Token Ring, Ethernet, and Fiber Optic.
• Configuration was running and completed in timely manner. Configure policies and enabled rules to alerting on intrusion events.
• Involved in IOS and CAT OS upgrade procedures and Pre/Post checks for customer production upgrades.
• Configured various Router interfaces like ATM interface, T3 interface, and Channelized T1 interfaces.
• Day-to-day work involves scheduling firewall policy provisioning and working with users to identify connectivity related issues and troubleshoot using CLI.
• Providing security awareness by training people to ensure system security and also to improve network efficiency.
• Troubleshooting Network Connectivity issues in Local Area Networks (LAN) using Packet Capturing Methods (Wireshark).
• Analyzed and tested network protocols (Ethernet, TCP/IP) using Wireshark tool.
• Research into Multiple 802.11 standards for possible vulnerabilities within security.
• Worked with blue coat proxy to actively utilized and monitor the web security and WAN optimization.
• Configuration and troubleshooting of Cisco Routers such as Cisco 3640, Cisco GSR 12416,21418(with PRP and RPR processors), Cisco catalyst 6509,7613 with supervisor cards
• Configuring, Monitoring and Troubleshooting Cisco’s ASA 5500 security appliance.
• Worked with multiple customers over a period of time to enhance their network, resolve and create work around for known IOS issues.
• Expertise in maintenance of layer2 switching tasks which advocate VLAN, VTP, STP, RSTP, PVST, RPVST, configuring of ether channel along with troubleshooting of inter-VLAN routing.
• Experience working with NCM and Infoblox
• Managing Network Performance Monitor, and Network Configuration Manager through network application tool Solar winds.
• Creating network designs using the Microsoft Visio and Creating Virtual Servers, Nodes, Pools and irules on BIG-IP F5 in LTM module.
• Installation and management of overall administration of LAN, WAN, systems involving design of network layouts, configuration and maintenance, Commissioning Routers & Switches, firewalls, IPS and ensuring maximum uptime during site deployment to VoIP.
• Configured PVSTP+ for loop prevention and VTP for Inter-VLAN Routing.
• Commissioning and decommissioning, configuring, URL and Web filtering, monitoring, SNMP traps, logging, blocking on Palo Alto devices, migrating from one network to other.
• Experience in configuring and Troubleshooting BIG-IP F5 load balancer LTM.
• Implemented, configured BGP WAN routing, converting OSPF routes to BGP (OSPF in local routing).
• Implemented redundancy for Routers, Switches and Firewalls.

Environment: Cisco 7200, 7204, and 7206 Routers, Switches: Cisco Distribution layer switches such as 4510, 4948, 4507, 7k, 5k and 2k series. Firewalls 5GT, BIG IP F5 LTMBlue coat proxy, EIGRP, RIP, OSPF, CISCO ASA, DHCP, DNS, Spanning tree and 802.11 wireless standards.

Confidential, Bloomington, IL

Network Engineer

Responsibilities:

• Installation and Configuration of various types of Personal Computers and Printers. Installation of different operating systems on Intel based PC's.
• Configuring/Troubleshoot issues with the following types of routers Cisco (7200, 6500, 4500, 1700, 2600 and 3500 series), to include: bridging, switching, routing, Ethernet, NAT, and DHCP, as well as assisting with customer LAN /MAN.
• 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.
• Troubleshoot Frame Relay; T1, T3, IP and OSPF related router and circuit issues.
• Configuring Vlan’s, VTP’s, enabling trunks between switches.
• Monitor, troubleshoot, test and resolve Frame Relay, ATM and PPP.
• Documenting and Log analyzing the Cisco PIX series firewall.
• Configured OSPF on CISCO devices with multiple routing processes and redistributed them. Tested and hands on experience in multi area OSPF topologies.
• Plans, coordinates, implements and supports the LAN / WAN hardware, software and Internet /Intranet integration network connectivity, diagnose network failures and resolve any problems.
• Excellent Troubleshooting Skills and Customer Centric approach.
• Configuring Big-IP F5 LTMs (virtual servers, pools, SNATs, health monitors, irules) and GTM’s for managing the traffic and tuning the load on the network servers.
• Co-ordinated and Upgraded F5 LTM’s and Cisco ASA’s IOS images during window time.
• Coordinated with other team members to order new circuits for connecting to MPLS ring.
• Worked on commissioning and decommissioning of the MPLS circuits for various field offices & POPs.
• GRE tunneling & Site-to Site VPN configuration between other two sites in USA.
• Configuring, managing and troubleshooting networks using routing protocols like RIP, EIGRP and OSPF (Single Area and Multi Area).
• 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.
• Troubleshoot Frame Relay; T1, T3, IP and OSPF related router and circuit issues.

Environment: Cisco 2990/3550/6550 switches, Cisco 7200/3845/3600/2800 routers, EIGRP, RIP, OSPF, BGP, MPLS, VPN, F5 LTM, GTM and Ether Channels.

Confidential, Cleveland, OH

Network Administrator

Responsibilities:

• Responsible for installation, configuration, as needed administration and troubleshooting on various networking applications and hardware including routers, switches and related LAN/WAN equipment.
• Interacted with WAN team for connecting at different building sites.
• Planning and management of IP addressing, Subnetting of the entire network and Responsible for monitoring and controlling the entire network.
• Configuring, maintaining, redistribution and troubleshooting routing Protocols RIP, OSPF, EIGRP, MPLS and BGP.
• Configuring Ethernet, Serial interface, static, and default routes on different series routers and also Configuring PPP, Frame Relay, ATM and ISDN.
• Working with different teams to gather info for the new request and troubleshoot for any connectivity issues by capturing traffic using smart view tracker.
• Troubleshoot connectivity issues and Monitor health of the firewall resources as well as work on individual firewall for advanced troubleshooting.
• Configure Fast Ethernet main and sub-interface assignments as required for intervlan routing and Implement NTP server, DHCP server, and TFTP server.
• Configuring access-lists, Firewall, route maps and route policy on the routers.
• Configuring Cisco catalyst Switches and making and managing VLANs.
• Worked on SNMP, syslog server for logging, and device management.
• Managing security of the network and using sniffers.
• Configuring Cisco ASA 5000 series firewalls and experience with checkpoints.
• Configure & Troubleshooting 802.3 bridging standards and Supporting media access protocols
• Conceptualized, designed and lead deployment team for a long-range wireless service offering using 802.11x products from Cisco wireless solutions.
• Working with OSPF as internal routing protocol and BGP as exterior gateway routing protocol.
• Implemented VLANS between different departments and connected them using trunk by keeping one Vlan under server mode and rest falling under client modes.
• Switching related tasks included implementing VLANS and configuring ISL trunk on Fast-Ethernet channel between switches.
• 24x7 on call support.

Environment: CISCO routers and switches, Access Control Server, VLAN, Trunk Protocols, CISCO ASA, 802.3 and 802.11 wireless standards, DHCP, DNS, Port-Channel, MPLS, BGP, OSPF, EIGRP.

Confidential

Jr. Network Engineer

Responsibilities:

• Primarily responsible in designing and maintaining the budget for the whole network.
• Preparing Client Machines for users with Operating Systems, Software, antivirus and required utilities and mailing clients etc.
• Perform daily maintenance, troubleshooting, configuration, and installation of all network components.
• Created network diagram for employees using the Microsoft Visio.
• Perform daily maintenance, troubleshooting, configuration, and installation of all network components.
• Good experience in systems administration, including analyzing, installing, maintaining, and repairing hardware, software, peripherals, and networks.
• Worked with Remedy Ticketing tool in maintaining and keep a track of logs/monitor
• TCP/IP network planning, Implementation and Management with subnets.
• Configuration of CISCO Routers (3600, 4000 Series) and 3550, 4500 series switches.
• Implementation of Virtual LANs across Routers and Switches.
• Implemented and configured LAN Protocols: Ethernet, VLANs, VTP and STP.
• Designed and implemented IP Addressing, Subnetting, Route Summarization and Route Distributions
• Implemented and Configured IP Routing Protocols: OSPF, EIGRP, and RIPv2.
• Have ability to install and maintain Microsoft Exchange and worked extensively on different applications.

Environment: LAN, WAN, Subnetting, VLAN, VTP, VPN, NAT, OSPF, BGP, EIGRP

Network Engineer

Responsibilities:

• Perform daily maintenance, troubleshooting, configuration, and installation of all network components.
• Troubleshoot and support Cisco Core, Distribution and Access layer routers and switches.
• Lead technical consultant for IT systems with Front Office Staff Corporate.
• Primarily responsible for incident and problem management.
• Creating groups, users and policies in Active Directory.
• Schedule changes and work through maintenance requests over weekends.
• Part of Network Operation Center NOC offshore support team from India supporting HP Data Center 24x7. L2 support for Cisco PIX and ASA Firewalls.
• Administration Big IP F5 LTM for all Local Load balancing and use GTM for load balancing across Data Centers.
• Optimized NTP system for operations during site isolation.
• Configuration of CISCO Routers (3600, 4000 Series) and 3550, 4500 series switches.
• Performed 802.11a/g/n Wireless Site Survey and Design for Spectra support center.
• Built IPsec based Site-to-Site VPN tunnels between various client locations.
• Debugging abilities at L1, L2, L3, and L4 protocols in an Internet-centric environment. Troubleshooting Active Directory, DNS, and DHCP related issues.
• Point-to-Point, Frame Relay, T3, ATM, WAN troubleshooting.

Environment: Cisco 7200/3845/3600/2800 routers, NTP, TACACS, EIGRP, RIP and Vulnerability Assessment tools like Nessus, Red Hat, Solaris, Juniper VPN's and SSL