SUMMARY:

• CCNP Certified with 7+ Years of experience working as a Network Engineer in planning, implementation, configuration, network designing, troubleshooting, maintenance and management involving LAN and WAN wireless Technologies.
• In - depth experience/ knowledge in implementation, administration, and support of Cisco/Juniper devices for both networking and security.
• Expertise in network protocols, Firewalls and Communication Network design.
• Designing, implementing and troubleshooting Cisco 3750, 3550, 3560, 2924, 6509-V-E, 6513, 6504, 6503, 6506, 6500 series switches.
• Experience with design and implementation of Virtual Switching System (VSS) on 6500 Switches.
• Implementing 3750 Stackable switches using Cisco StackWise technology. Experience to review and evaluate current and future design issues as required for maintaining network integrity, efficient data flow.
• Designing, implementing and troubleshooting Cisco routers (800, 2800, 2600, 3800, 7600) using Static, RIP, IGRP, OSPF, EIGRP & experience with Cisco PIX & ASA devices.
• Experience in Cisco security: Telnet, SDM, NAT/ACLs, AAA, Layer 2 Security, Layer 3 Security, IPS/IDS, Cisco (ASA, PIX) 5510, Cryptography, VPN, IPsec.
• Configuring security policies including NAT, PAT, VPN’s and Access Control Lists.
• Implementing security policies using ACL, PIX firewall, ASA and Routers.
• Knowledge in configuring and troubleshooting Cisco Wireless Networks: LWAPP, WLC, WCS, Standalone APs, Roaming, Wireless Security Basics, IEEE 802.11 a/b/g, RF spectrum characteristics.
• Working knowledge of frame relay, MPLS services, OSPF, BGP and EIGRP routing protocols, NAT’ing, sub-netting, also including DNS, WINS, LDAP, DHCP, http, HTML, HTTPS, TCP/IP, UDP, SNMP, OSPF, RIP, IPSEC, PPTP, VLAN, STP (Spanning tree Protocol), RTSP & Multicasting protocols.
• Experience working with High performance data center switch like Nexus 7000 series.
• Experience working with Nexus 7010, 5000 and 2000 Series.
• Dealt with the escalation problems for Routing, Switching and WAN connectivity issues using ticketing system like Remedy Ticketing System.
• Experience working with F5 Load Balancer LTM and GTM module.
• Expertise in IP Addressing, Sub-netting, VLSM and CIDR.
• Experience in configuration of VLANS, Trunks and VTP.
• Installing, configuring and troubleshooting DNS and DHCP servers.
• Experience with Troubleshooting tools for example protocol analyzers, load generators & network traces.
• Expertise in network protocols, firewalls and communication network design.
• Experience with installing and managing IT services such as Active directory, site replication, DNS, SSH, DHCP, DNS, NAT and Terminal service.
• In depth understanding of IPV4, implementation of Subletting, VLSM and ARP, reverse & proxy ARP, Ping Concepts.
• Experience in Network Management Tools and sniffers like SNMP, HP-Open view, Wireshark and Cisco works to support Network Operation Center.
• Provides technical leadership forproblem escalation and resolution.
• Highly motivated with the ability to work independently or as an integral part of a team and Committed to highest levels of professional.
• Efficient at use of Microsoft VISIO/Office as technical documentation and presentation tools.
• Excellent verbal, written communication skills and interpersonal skills with ability to work with large team as well as independently with minimum supervision & Team Player.

TECHNICAL SKILLS:

Routing Protocols: RIP, RIPV2, IGRP, EIGRP, OSPF, BGP, TCP/IP, Static And Dynamic Routing, IPv4, IPsec.

CISCO Routers: 1700, 1800, 2500, 2600, 2800. CISCO High End Routers 3600, 3800, 7200, 12010, 12404.

CISCO Switches: 1900, 2950, 2950, 2960G. CISCO Campus Switches 3550XL, 4948 Core Catalyst 4503, 4507 RE, Catalyst 6500/6503/6507 , Nexus 5000 series.

Antivirus & Endpoint protection: Cisco CSA, Symantec Enterprise Edition, MacAfee Enterprise Edition.

Security & VPN: PIX 500 Firewall, ASA 5505 Firewall, AIP SSM, CSC, SSM, FWSM, FortiGate, Cisco CSM, ACL-Access Control List, IPS/IDS, NAT, PAT, Cisco ACS, and Juniper Netscreen firewall, Windows Patch Management (WSUS).

LAN Technology: Workgroup, Domain, HSRP, DNS, DHCP, Static, VLAN, STP, VTP, Ether Channel, Trunks.

WAN Infrastructure: Leased Line, ISDN/Dial Up, and Frame Relay circuits, Metro Ethernet.

WAN Technologies: HDLC, PPP, ATM, SONET, MPLS, VPN, IPsec-VPN.

Juniper: EX2200, EX4200, EX 4500, MX-480, M Series, SRX210, SRX240 Wireless & Wi Fi

Canopy Wireless: Device (point to point/point to Multipoint), DLink Wireless (point to point), DLink Access Point, CISCO 1200 series Access Point, and Linksys Wireless/Wi-Fi Router.

Operating Systems & Tools: Cisco IOS, Windows NT 4.0 (Desktop/Server), Windows 2000/2003/2008 Server, Windows XP/Windows 7/8, LINUX, Solaris, Active Directory, Apache Server, MS Exchange server, Veritas Volume Manager.

Network Security: ACL, IPSec, VPN, Port security, AAA, Zone-Based Firewalls, IOS based router security firewalls, IDS/IPS, Palo Alto firewalls.

Network Technologies: MANET, SONET, TDMA, FDMA, CDMA. DSL, POP3

Documentation: MS Office, MS Visio

PROFESSIONAL EXPERIENCE:

Confidential, Chicago, IL

Sr. Network Engineer

Responsibilities:

• Designed, validated and implemented LAN, WLAN & WAN solution to client’s needs.
• Project involves testing of Wi-Fi Certification Features like WPA2, WMM and WMM-PS, Wi-Fi WPA2.
• Configured and designed LAN networks with Access layer switches such as Cisco 4510, 4948, 4507 switches.
• Design OSPF Areas for reliable Access Distribution and for Core IP Routing.
• Rolled out existing flat structure of branch site with Cisco 3640, 3600, 3800, 7200 routers and used Cisco PIX510 to provide firewall security.
• Implementing, Monitoring, Troubleshooting and Convergence in Frame-Mode MPLS inside the core.
• Worked with LAN protocols like STP, RSTP, MST, VTP, VLAN and Port Channel Protocols like LACP, PAGP.
• Troubleshooting and monitored routing protocols such RIP, OSPF, EIGRP & BGP.
• Designing and Implementation of (LAN) VLANs, VTP, Spanning Tree (STP), Trunking (dot1q and ISL) and Ether channel.
• Provided Load balancing towards access layer from core layer using F5 Network Load Balancers.
• Upgraded load balancers from Radware to F5 BigIP v9, which improved functionality and scalability in the enterprise.
• Managed the F5 BigIP GTM/LTM appliances to include writing iRules, SSL offload and everyday task of creating WIP and VIPs.
• Segmented traffic into different classification using access control list (ACL).
• Create and maintain security and disaster prevention policies and procedures on Juniper M and E series routers.
• Detect and repair potential provisioning and configuration issues on Juniper Routers.
• Implemented TCP/IP and related services like DHCP/DNS/WINS.
• Experience with moving data center from one location to another location, from 6500 based data center to Nexus based data center.
• Configured and troubleshooting of HSRP on Cisco routers.
• Implemented Layer 2 security policies to mitigate attacks by hard coding access port, Port-security violation policies, configuring all unused port in Black hole VLAN.
• Responsible for turning up BGP peering and customer sessions, as well as debugging BGP routing problems.
• Implemented SNMP on Cisco routes to allow for network management.
• Worked extensively in designing, Configuring, Monitoring and Troubleshooting in connecting vendors to Morgan’s network, cisco's 2921, 1841, 395E with ACL, NAT, Prefix list, Community, Failovers.
• Experience in providing solutions as working along with the circuit’s team for upgrading the bandwidth for campus locations.
• Experience working with Cisco Nexus3000 for deploying the OOB network for the data center.
• Write & review test plans for IEEE 802.11a/b/g, 802.11e, 802.11D+H, 802.11R, 802.11n etc. as well as proprietary features.
• Implement ATM/Frame Relay between data centers utilizing Cisco routers & switches.
• Design Layer 2/Layer 3 network for cloud hosting data centers and enterprise networks.
• Experience of VMware ESXi and VMware Infrastructure.
• Experience in vSphere Infrastructure.
• Reviewing, analyzing, approving and executing all changes in the network. All Configurations of Cisco Routers and Switches. Participated in a rotating 24x7 support schedule for the Network operation Center.
• Deployed a large-scale HSRP solution to improve the uptime of collocation customers, in the event a core router became unreachable.
• Experience in Configuring, upgrading and verifying NX-OS operation system with OSPF, BGP.
• Key contributions include troubleshooting of complex LAN/WAN infrastructure that include routing protocols OSPF & BGP.
• Responsible for managing activities, Upgrading IOS - Upgrading hardware and installing new devices, Tuning (Configuration), make standardization for the topology.

Environment: In Corporate office architecture with highly reliable & secured network including Cisco routers (ASR, 6500, 3800, 2800) and Cisco switches (6500, 3700, 4500, 2900), Nexus(3k) Routing Protocols (RIP, OSPF, BGP), Switching protocols (VTP, STP, GLBP,HSRP), Juniper firewalls 5GT, 208, SSG 5, 140, 550, 550M, NSM, IDS/IPS.

Confidential, Austin, TX

Network Engineer

Responsibilities:

• Assisted the network team in maintaining the campus network.
• Maintained a network lab with more than 30 routers (3600 series), 50+ switches (2900 series), firewall and other network devices like DHCP, DNS servers and VPN concentrators.
• Designed ACLs, VLANs, troubleshooting IP addressing issues and taking back up of the configurations on switches and routers.
• Experience working with ASR 9000 series switches with IOS-XR.
• Provided testing for network connectivity before and after install/upgrade.
• Switching related tasks included implementing VLANS and configuring ISL trunk on Fast-Ethernet and Gigabit Ethernet channel between switches.
• Experience in vSphere Infrastructure.
• Helped the network team to install new switches and routers and configure the IOS according to the requirement which included VLAN, OSPF, Subnetting, EIGRP, BGP, VTP, PaGP, spanning - tree, IP Subnetting, wireless access points, T1 circuits and PIM-SM using auto RP.
• Assisted in backing up, restoring and upgrading the Router and Switch IOS.
• Assisted campus for VOIP network management and troubleshoot.
• Set up network connectivity for Cisco training. This involved connecting the routers, switches and firewall physically and loading them with a base configuration. It also involved connecting the PCs to the network and providing Internet connectivity.
• Worked on Data, VoIP, security as well as wireless installations and technologies.
• Implemented Site-to-Site VPNs over the Internet utilizing 3DES, AES/AES-256 with ASA Firewalls.
• Experience with migrating from Cisco ASA 8.2 version to Cisco ASA 8.4 Version.
• Experience with convert PIX rules over to the Cisco ASA solution.
• Responsible for Cisco ASA firewall administration across our global networks.
• Attended team meetings and provided comments on existing network and the recommendation to improve the current network performance.
• Worked with new installations, upgrades, and maintenance of the LAN/WAN, Network Security, Internet, and set up and repair desktop PCs using Windows 2000/XP/MAC/Linux for 350 users.
• Maintained the health of 40+ wireless devices throughout the campus.
• Worked with LAN protocols like STP, RSTP, MST, VTP, VLAN and Port Channel Protocols like LACP, PAGP.
• Desktop support for users including, MS Office, Windows 2000/XP, MAC, Linux, Operated and staffed help desk support for more than 500 users and 5 computer Laboratories.
• Design and configuring Overlay Transport Virtualization (OTV) on Cisco NX-OS devices like Nexus 7000.
• Experience working with migration from 6500 series devices to 4500 Series switches in Campus deployments at Core, Distribution and Access Layers.
• Interface effectively with other departments and staff to ensure satisfactory and timely resolution of their issues or problems.
• Experience of VMware ESXi and VMware Infrastructure.
• Upgrading IOS - Upgrading hardware and installing new devices, Tuning (Configuration), make standardization for the topology.
• Installation & configuration of Microsoft Proxy Server 2.0 & Blue Coat Proxy.
• Configured, installed, & managed DHCP, DNS, & WINS servers.
• Provided front-end on-call network support 24x7x365 for all network infrastructures in the co-operation.

Environment: In Corporate office architecture with highly reliable & secured network including Cisco routers (7200, 3800, 2800) and Cisco switches (6500, 3700, 4900, 2900), Nexus (7K, 5K & 2K) Routing Protocols (EIGRP, OSPF, BGP), Switching protocols (VTP, STP, GLBP, HSRP), Cisco PIX (525, 535), ASA (5505, 5510), FortiGate Firewall 80C, 100d, 1240b on Forti OS5.2.

Confidential, Germantown, MD

Network Engineer

Responsibilities:

• Worked in Configuration and extension of VLAN from one network segment to other segment between different vendor switches (Cisco, Juniper).
• Provided Technical support in terms of upgrading, improving and expanding the network.
• Providing technical security proposals, detailed RFP responses, and security presentation, installing and configuring ASA firewalls, VPN networks and redesigning customer security architectures.
• Configured VLANS to isolate different departments.
• Key contributions include troubleshooting of complex LAN/WAN infrastructure that includes routing protocols EIGRP, OSPF & BGP.
• Worked in setting up inter-vlan routing, redistribution, access-lists and dynamic routing.
• Configure switch VLANs and inter-switch communication. Build and setup network Laboratory.
• Involved in customer escalations and troubleshooting issues related to connectivity, STP, VLAN, Trunking, VTP, Layer 2/3 switching, Ether channels, Inter-VLAN routing, log messages, high CPU utilization and parameters that can degrade performance of network.
• Configured VLANS on multiple catalyst switches performed troubleshooting on TCP/IP network problems, Administered Frame-Relay and networks.
• Provided technical support and problem resolution for the LAN and its environment by analyzing the problem, identifying the cause and circumstances of the problems and finding a solution to the identified problem.
• Actively involved in troubleshooting on network problems with Wireshark, identifying and fixing problems.
• Time to time upgrade network connectivity between branch office and regional office with multiple link paths and routers running HSRP, EIGRP in unequal cost load balancing to build resilient network.
• 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.
• Involved in configuring and implementing of Composite Network models consists of Cisco 3750, 2620 and, 1900 series routers and Cisco 2950, 3500 Series switches.
• Implemented various Switch Port Security features as per the company’s policy.
• Configured RIP, and EIGRP on 2901 and 3925 Cisco routers.
• Troubleshoot issues related to VLAN, VLAN Trunking, HSRP failovers, related issues.
• Data center to newJuniperM120.
• Manage and coordinate all infrastructures related moves, ads, and changes.
• Implement, and maintain Local/Wide Area Network over 13 branches.
• Configured RIP, OSPF and Static routing on JuniperM and MX series Routers.
• Configuration of NAT.
• Design and implement Catalyst/ASA Firewall Service Module for various LAN’s.

Environment: Router series (2800, 3800, 7200) and switch series (3750, 3550, 4509E, 6509E), Cisco PIX (525, 535), ASA (5505, 5510) firewall, Routing Protocols (EIGRP, OSPF, BGP), Switching protocols (VTP, STP), Site to Site VPN, Remote Access VPN.

Confidential

Network Engineer

Responsibilities:

• Installation and Configuration of wide variety of Cisco Routers such as 3600 series and Layer 2 switches such as 1900, 2900
• Configuration and Troubleshooting of Routing protocols like OSPF and BGP.
• Configure and Troubleshooting FortiGate firewall Appliances to Restrict Inbound Traffic from Untrusted Sources as endpoint security.
• Configure the access policies and VPN policies in checkpoint firewall.
• Implementing and Troubleshooting VLANS, Trunks, VTP & STP.
• Coordinating with Local (sify and Reliance) and Global ISPs (CNW and TATA) to trouble shoot routing issues.
• Experience with protocols such as Frame Relay, IEEE 802.11 and VLAN, OSPF and BGP, DNS, DHCP, FTP, NTP, SNMP, SMTP and TELNET.
• Trunking, VTP, Layer 2/3 switching, Ether channels, Inter-VLAN routing, log messages, high CPU utilization and parameters that can degrade performance of network.
• Configured VLANS on multiple catalyst switches performed troubleshooting on TCP/IP network problems, Administered Frame-Relay and networks.
• Provided technical support and problem resolution for the LAN and its environment by analyzing the problem, identifying the cause and circumstances of the problems and finding a solution to the identified problem.
• Configured ACL & NAT through CLI.
• Installed, configured (through CLI & SDM) and managed CISCO routers and Catalyst switches.
• Set up Internet, implementing Networking products like Servers, Proxy servers, Switches, Firewalls, Routers.
• Taking configuration backups of all the Firewalls Routers and Switches on monthly basis.
• Providing node up time reports to customer on monthly basis.
• Coordination of Engineers at various located across the world.
• Providing 24x7 supports.

Environment: CISCO 2600, 2800 and 3200, 3600 series routers, CISCO 1900, 2900, 3300 and 2950 switches, Routing Protocols (Frame Relay, IEEE 802.11 and VLAN, OSPF and BGP, DNS, DHCP, FTP, NTP, SNMP, SMTP and TELNET).

Confidential

Network Administrator

Responsibilities:

• Network Administrator at Serco Global Services, which entailed applying encryption to other branch routers as well as core switches (6500s). Worked with CitiFinancial’s Network Support Group to coordinate branch migrations.
• Implemented an IP telephone network with 100+ IP phones and 4 Alcatel 7000 L3 switch. Configured data network to support voice including VoIP VLAN, interVLAN routing and QoS tagging. Included 4 PCX systems, voice mail server, my teamwork server and a management server. This project included 7 wireless AP and LAN bridging through a wireless link.
• Created the foundation for the dynamic and automated data center with VMware ESX and ESXi.
• Analyzed the circuit using Spectrum Analyzers, Oscilloscopes, Power Meters, Monitored network traffic via network monitoring tools and sniffers in an attempt to troubleshoot network outages and intrusions by tracing their origin and destination.
• Migration to MPLS from other protocols
• Established and administered periodical testing of network backup and recovery procedures to protect corporate data and system assets.
• Monitoring and updating trouble tickets on Clarify CRM tool in a timely manner based on Customer’s contractual SLAs and responding to incidents or service requests from both live and system-generated sources.
• Maintained documentation and database of customer’s environment as per security standards with monthly Excel reports. Good understanding of Designing network diagram solutions for clients using VISIO and PowerPoint.