SUMMARY

• 7 (Seven) years of experience as Network Engineer which includes in routing, switching, firewall technologies, installation and analysis for a broad range of LAN / WAN communication systems.
• Involved in troubleshooting of DNS, DHCP and other IP conflict problems.
• Hands on experience in installing, configuring, and troubleshooting of Cisco routers and switches.
• Proficient in resolving Connectivity and Troubleshooting issues and hardware problems on Cisco networks of configuring and troubleshooting of Layer 3 Routing protocols RIP, EIGRP, OSPF, ISIS and BGP and layer 2 protocols, VTP, STP and RSTP.
• Knowledge of implementing and troubleshooting complex layer 2 technologies such as VLAN Trunks, VTP, Etherchannel, STP and RSTP. Implementation of HSRP, VRRP for Default Gateway Redundancy.
• Strong work experience on MPLS, QoS, VPN, and WLAN technologies.
• Hands - on experience in Tier II ISP Routing Policies, Network Architecture, IP Subnetting, VLSM, TCP/IP, NAT, DHCP, DNS, Firewalls.
• Designing and developing cost effective network solutions for enterprise customers based on the business requirements.
• Experience in Designing and assisting in deploying enterprise wide Network Security and High Availability Solutions for ASA.
• Ability to Install, Operate, & Manage Large Networks & Security for the Co-located Servers, Production, Development, Staging & Lab Environments.
• Troubleshooting connectivity issues and application problems.
• Adept in preparing Technical Documentation and presentations using Microsoft Office.
• Experience in installing and configuring DHCP server.
• Troubleshooting server workstations, network monitoring, and upgrading systems.
• Experience in configuring Site-to-site and remote access VPN solutions.
• Experience testing Cisco routers and switches in laboratory scenarios and deploy on site for production.
• Excellent customer management/resolution, problem solving, debugging skills and capable of quick learning, implement and delivering solutions as an individual and as part of a team.

TECHNICAL SKILLS

Network Configuration: Advanced switch/router configuration (Cisco IOS access list, Route Redistribution/propagation)

Routing Protocols: RIPv1, RIPv2, EIGRP, OSPF, BGP, IBGP, EBGP

Switching Protocols: VTP, 802.1Q, Spanning Tree Protocol, RSTP, VLANs

LAN Technologies: Ethernet, Fast Ethernet, Gigabit Ethernet, Wireless (802.11 a/b/g/n)

WAN Technologies: OC-192, OC-48, FRAME RELAY, PPP, T1/E1, HDLC, MPLS, DS3, Leased Lines, DSL Modems, ISDN (PRI/BRI), Fiber technology, Copper Cabling Technology

Security Technologies: ACL, IPSec, DMVPN, dot1x, IKE, SSL.

Cisco Routers: 1800, 2600, 2800, 3600, 3700, 3800, 3900, 6500, 7200

Switches: 2900XL, 2950, 2960, 3500, 3550, 3560, 3750, 4500, 6500, Nexus 4k, Nexus 5k, Nexus 2k, Nexus 1k, Nexus 7k

Miscellaneous: DHCP, DNS, TFTP, POP3, FTP, SMTP, TCP/IP, ARP

Operating Systems: Microsoft XP/Vista/7/8, Linux, Windows Servers 2003/2008, and OS X

PROFESSIONAL EXPERIENCE

Confidential, Fort Meade, MD

Network Engineer

Responsibilities:

• Configure Router RIP, OSPF, BGP routing.
• Upgrading and Backing up Router IOS
• Register, Add or Delete the IP addresses to the IP Plan.
• Worked extensively on MPLS, HSRP and VRRP environment.
• Negotiate VPN tunnels using IPSec encryption standards and also configured and implemented site-to-site VPN, Remote VPN.
• Excellent troubleshooting knowledge on T1, T3, OC-3 and OC-12.
• System testing with PPP, L2TP, STP, and ACLs enabled.
• Involved in Installing and Configuring a Cisco secure ACS server for AAA authentication (RADIUS and TACACS+).
• Performed OSPF, BGP, DHCP, and Ethernet implementation.
• Worked extensively on network testing and troubleshooting.
• Adding the extra blades to Distribution Switches.
• Configuring and troubleshooting type of routing to route traffic flow per customer requirement as primary, backup/load balanced, and load splitting.
• Designing network plan of routing policies with route maps, distribution lists, access-list.
• Experience with implementing and maintaining network monitoring systems and experience with developing complex network design documentation and presentations using VISIO.
• Used DHCP to automatically assign reusable IP addresses to DHCP clients.
• Implemented the Cisco Secure Access Control Servers (ACS) to offer centralized command and control for all user authentication, authorization and accounting (AAA).
• Performed Switching Technology Administration including creating and managing VLANS’s, Port security, Trunking, RSTP, Inter VLAN routing, LAN security etc.
• Worked on Inconsistent VLAN issues and removed the VLAN across the trunks and implemented Rapid Spanning tree from STP.

Environment: Cisco Routers, Cisco Switches, Routing Protocols, LAN, WAN, TCP/IP, Tunneling, Firewall, VPN, MPLS, Wireshark, VLAN, VTP, RSTP, ACL, Monitoring Tools (Solar winds).

Confidential, Florham Park, NJ

Network Engineer

Responsibilities:

• Installed and configured routers along with Cisco switches including 3750 and 6500.
• Performed configuration and troubleshooting of EIGRP and BGP.
• Dealt with upgrading the Cisco hardware and migration of the router and switches.
• Designed new enterprise MPLS VPNs, as needed for policy and security reasons.
• Worked with Network Administrator in the installation and configuration of ASA firewall.
• Implemented Site-to-Site IPSec VPN connecting to branch offices and the corporate office.
• Configured Remote access IPSec VPN for remote users to communicate with the corporate office.
• Installed and configured DHCP server.
• Involved in troubleshooting of DHCP and other IP conflict problems.
• Designed QoS policies for critical applications based on business requirements and traffic patterns.
• Performed switching technology administration including VLANs, inter-VLAN routing, Trunking, STP, RSTP, port aggregation & link negotiation.
• Configuration of Access List to allow users all over the company to access different applications and blocking others.
• Participated in on call support in troubleshooting the configuration and installation issues.
• Other responsibilities included Support other teams, change control.

Environment: Cisco Routers, Cisco Switches, Routing protocols (EIGRP, BGP), MPLS VPN, HSRP, GLBP, PBX, IP Telephony, ASA firewall, IPSEC VPN Tunnel, Load Balancer CSS, QoS, ACL, VLANs, VTP, STP, RSTP, DNS, DHCP

Confidential, Edison, NJ

Network Engineer

Responsibilities:

• Configuring and troubleshooting inter VLAN routing with 802.1Q trunking and L3 switches, VTP, Spanning tree,
• Configuring, Implementing and Troubleshooting (MHSRP) on Cisco Nexus 7000 Series devices
• Configuring, maintaining and troubleshooting Cisco layer 3/ layer 2 switches.
• Configuring IP RIPv2, OSPF and BGP in routers. Routing related tasks includes, providing Cisco router configuration and troubleshooting the configuration and installation issues.
• Designing rules (ACL, security policies) to ensure better security.
• Hands on experience in configuring QoS on Cisco Routers/Switches.
• Monitoring and maintaining LAN/WAN networks using Snort and sniffer trace.
• Configuring VLAN and enabling IP routing in order to allow restricted connections from some resources.
• Integrate VoIP with PSTN and setup voice Gateway ensuring QOS for Cisco based Voice over IP and CDR for voice call Accounting.
• Installing and configuring Checkpoint and ASA firewalls, VPN networks and redesigning customer security architectures.
• Design and Implement Remote access VPN server using Cisco ASA.
• Creating a rule on the checkpoint firewall for a NAT (used ACLs to block unauthorized users) to the VLAN IP and allowing the IPSec traffic.
• Recommend designs to ensure consistency within networks.
• Day-to-day activities involved maintenance, upgrading, and troubleshooting of Ethernet, Fast Ethernet, and Gigabit Ethernet LANs.
• Used DHCP to automatically assign reusable IP addresses to DHCP clients.
• Created extensive architecture and design documents such as (site network diagrams, logical LAN/WAN diagram, network device list (servers/routers/switches), server information sheets) that will be used in the hand off from engineering to operations.

Environment: Cisco Routers, Cisco Switches, Routing protocols, HSRP, VRRP, IPSEC VPN, VPN, QOS, ASA firewall, Load balancer, VLANS, VTP, RSTP, ACL, NAT, IDS/IPS, RADIUS, TACACS+

Confidential

Network Engineer

Responsibilities:

• Network Engineer Design, implementation and operational support of routing/switching protocols in complex environments including BGP, OSPF, EIGRP, Spanning Tree, 802.1q etc.
• 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. Switches Replace branch hardware with new 2851 routers and 2960 switches.
• Worked extensively 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.
• Worked Extensively on Cisco Firewalls, Cisco PIX (506E/515E/525/) & ASA 5500(5510/5540) Series.
• Experience working on different monitoring tools to analyze and resolve the issues.
• Excellent Troubleshooting Skills and Customer Centric approach.
• Configuring and troubleshooting of Layer 3 routing protocols such as EIGRP, OSPF and BGP.
• Coordinated with Network Administrator regarding BGP/OSPF/EIGRP routing policies and designs, worked on implementation strategies for the expansion of the MPLS VPN networks.
• Designed QOS policies for critical applications based on business requirements and traffic patterns.
• Worked with Wireless Network Engineer in deploying and configuring Cisco 1100 Series access point for network connections.
• Work on firewall policy for the network configured on Checkpoint Firewall.
• Worked with system, network, security, and storage engineering teams to prepare and configure new servers for the environment.
• Troubleshoot network issues related to application access and performance.
• Responsible for troubleshooting day-to-day support issues and Performance related issues.
• Monitoring Circuit bandwidth utilization using NetQos and Network Devices performance using Riverbad Cascade.

Environment: Cisco 6509/3750/3550/3500/2950 Nexus 2000, 6500 switches, Cisco 7200/3845/3600/2800 routers, TACACS, EIGRP, RIP, OSPF, BGP, VPN, MPLS, and Ether Channels.

Confidential

Network Engineer

Responsibilities:

• Designed, Installed and supported Installation and configuration of office-wide LAN.
• General desktop support, assisted web development and exchange server administration, provided graphic work.
• Responsible for configuration of Cisco devices and troubleshooting. Worked on expansion and maintenance of network supporting hundreds of web hosting clients.
• Installation and configuration of DHCP and DNS servers.
• Configured CISCO ROUTERS (2500, 3000, 4000, and 7200) with RIP, EIGRP, and OSPF.
• Extensive work on creating VLANs and maintaining VLAN database throughout the network using VTP.
• Configuring and troubleshooting inter VLAN routing with 802.1Q trunking and L3 switches.
• Worked on STP to block redundant links for a loop free network
• Installation and maintenance of windows 95/98/NT/2000/2003 client operating systems, hardware/software upgrades and network administration.
• Configuring NAT, Dynamic NAT, inside Global Address Overloading, TCP, overload, and distribution, Overlapping Address Translation.
• Worked on WAN connectivity between CISCO routers using T1, T3, Frame relay and troubleshooting connectivity issues.
• Worked extensively on network testing and troubleshooting.
• Extensively worked on creating security Policies and implementation plans for an improved Security solution.
• Design and create dedicated VLANs for voice and data with QOS for prioritizing VOICE over data on catalyst switches and basic VOIP configuration.
• Testing and migrating locations from hub and spoke topology to MPLS.

Environment: Cisco routers 3700, 3800, 7200, 7604, Cisco catalyst series Switches 2960, 3750, 3560, 6500, MPLS, Frame Relay, DSLAM, RIP, OSPF, BGP, IPSEC, VLAN, STP, VTP, HSRP.