PROFESSIONAL SUMMARY:

• 8 years of Professional Experience in Network Engineer/ Administrator.
• Expert Level Knowledge in TCP/IP and OSI model.
• Configured Routing protocols such as RIP, EIGRP, OSPF, BGP, static routing and policy based routing.
• Knowledge of implementing and troubleshooting complex layer 2 technologies such as VLAN Trunks, VTP, Ether channel, STP and RSTP.
• Switching related tasks included implementing VLANS, VTP, RSTP and Port security.
• Performed EIGRP, OSPF & BGP routing protocol administration.
• Maintain and configure HSRP & VRRP for consistency on all VLAN's across a redundant Core.
• Maintain a thorough understanding of the basics behind the Internet and its workings (DNS, Security, IP Routing, HTTP, VPN, Email Routing etc.).
• Configure and setup Cisco Router, Switches and VPN Concentrators and Security appliances for access to vital business applications.
• Design, setup and configure complex switching environments.
• Design, setup and configure complex wireless networking that supports open or secured access and the ability to support voice and video applications.
• Maintain a thorough understanding of Local Area Networking.
• Assist in the design of multi - server environments including IP address schemes, DNS, DHCP, WINS, Ether-Channel (Bonding), etc.
• In-depth expertise in the analysis, implementation, troubleshooting & documentation of LAN/WAN architecture and good experience on IP services.
• Configuring and installing client and server network software for upgrading and maintaining network and telecommunication systems.
• Maintaining multi-site network operations and software applications, operating systems and regular maintenance with both private and public facilities.
• Managing assigned projects and program components to deliver services in accordance with established objectives.
• Configured HSRP and VLAN trucking 802.1Q, VLAN Routing on Nexus 7k, 5k and Catalyst 6500 switches.
• Responding to inquiries from staff, administrators, service providers, site personnel and outside vendors and etc. to provide technical assistance and support.
• Supervising the administration of systems and servers related network to ensure availability of services to authorized users
• Performing IOS upgrades for Cisco switches and configure.
• In-depth knowledge and hands-on experience on IP Addressing, Sub netting, VLSM and ARP, reverse & proxy ARP, Ping Concepts.
• Experienced in troubleshooting various network related problems by using sniffing tools.

TECHNICAL SKILLS:

HARDWARE FIREWALL & SNIFFERS: Cisco Switches (2900, 2924, 2950, 3550, 5500, 6500, 6509, 6513) Cisco PIX, Cisco routers (2600, 2800, 3640, 3700, 3825, 7200, 7204, 7206) FWSM, Cisco PIX 500 series ASA,CSU s/DSU s Check point, Catalyst 6500, 7600, 4500 OPNET, Juniper M320 Wire Shark, T640 routers.

Servers: AD/DC, DHCP, DNS, VPN, NAP, WSUS, Email Server, Software Deployment Server, BHS, GC Server, Windows Deployment Service, Proxy Servers, Print Servers, Application servers, FTP Servers.

Operating Systems: Windows 2000/2003/2008 , windows XP/7, LINUX, Redhat, UNIX, Macintosh

Protocols: RIP, RIP2, PPP, OSPF, EIGRP, IS: IS, BGP, SNMP, HTTP, FTP, TFTP, HTTP, DHCP, SMTP, ICMP

WAN Protocols: HDLC, PPP, ATM, FRAME RELAY, IDSN, Metro Ethernet

LAN Technologies: Ethernet, TCP/IP, CDP, STP, RSTP, VTP, VLAN, Trunks, Ethernet channel, MPLS.

Redundancy Protocols: HSRP, VRRP, GLBP, RPR, RPR+, NSF-SSO.

PROFESSIONAL EXPERIENCE:

Confidential, Santa Ana, CA

Sr. Network Engineer

Responsibilities:

• Managing and supporting large scale MPLS & Frame relay on Cisco & Juniper environment for more than 5000 Retail sites, 100 Distribution centers, 100 offices and 3 datacenters.
• Troubleshooting issues related to Layer 1/2/3 skills like switching / routing, WAN /Hardware and critical network links by coordinating with the vendor.
• Experience working with MPLS Layer 3VPN on ASR 9006 with IOS-XR
• Managing and upgrading IOS image files and taking configuration back-up.
• Configuring Static, EIGRP, RIP and OSPF Routing Protocols on Cisco 1600, 2600, 2800, 3600, 7300 series Routers.
• Design, and configuring of OSPF, BGP on Juniper Routers and SRX Firewalls.
• Designing, Implementing and Troubleshooting Cisco 3750, 3550, 3560, 2924, 6509-V-E, 6513, 6504, 6503, 6506, 6500 series switches, GSR, ASR routers with Cisco IOS and IOS-XR
• Configured Site to Site IPsec VPN tunnels to peer with different clients and each of client having different specifications of Phase 1 and Phase 2 policies using Cisco ASA 5500 series firewalls.
• Used IPSec VPN tunneling to provide access to user machines and partners in other network. Provided application level redundancy and availability by deploying F5 load balancers LTM.
• Configured VLAN Trunking 802.1Q, STP (802.1d),Port Security on Catalyst 6500 switches
• Created Visio Dean / Visio Documentation to give complete picture of network design for each building.
• Designing and implementing Wireless network in the Campus for both internal and project requirements.
• Configuring and Maintaining Cisco Wireless LAN controllers, Access points and Airtight Sensors and SpectaGuard.
• Analyzing and closing the Vulnerabilities found in the Wireless using Airtight SpectaGuard.
• Worked extensively in Configuring, Monitoring and Troubleshooting Check point security appliance, Failover DMZ zoning & configuring VLANs/routing/NATing with the firewalls per design.
• Responsible for Checkpoint firewall management and operations across our global networks.
• Working with Checkpoint Support for resolving escalated issues.
• Planned and implemented network designs, including WAN, LAN, MPLS.
• Racking, Stacking, configuring, Nexus 2K, 5K and 7K in data center environment
• Working with BGP, EIGRP protocols in MPLS Cloud.
• Remediation of firewall rules from checkpoint firewalls to Cisco ASA firewalls and their implementation
• Configured and managed VLANs, 802.1Q Trunk, RPVST+, Inter-VLAN routing, HSRP and LAN security for Layer-2 and Layer-3 switching domains as per the organization's requirement plan. IP Allocation for all applications and servers with high availability throughout the company.
• Participate in all technical aspects of LAN, WAN, VPN and security Internet Service projects including, short and long term planning, implementation, project management and operations support as required.
• Having Data Center Design Experience, installing and Configuring Network Devices in a Data Center including patching the cables in the Patch Panel. Design and implemented network
• Hands-on experience in the network management of circuits using TDM and Frame Relay network, performing configuration and provisioning management, fault management and performance monitoring
• Expertise in developing Complex Automated Script Framework, utility functions manually for HTTP(S) Protocol.
• Configuring Virtual Chassis for Juniper switchesEX-4200,Firewalls SRX-210
• Deploying Layer 2 security in Server Farms by configuring switch for 802.1x port based authentication.
• Replaced old 6500 and WAN routers from DR testing site and Installed Nexus 7K and ASR 1006 routers.
• Implemented, configured BGP WAN routing, converting OSPF routes to BGP (OSPF in local routing).
• Packet capturing, troubleshooting on network problems with Wireshark, identifying and fixing problems
• Performing network monitoring, providing analysis using various tools like WireShark, Solarwinds etc.
• Implementation and configuration of F5 Big-IP LTM-6400 load balancers
• Deployments for use cases such as SaaS, IaaS, and data center migration.

Environment: Cisco 1600/2600/2800/3600/7300 Routers,Cisco 2948/3560/4500/3560/3750/3550/3500/2960 Switches, RIP, OSPF, BGP, EIGRP, VLAN, MPLS, ASA 5500, F5 Load Balancer 6400, STP, RPVST, LAN, WAN and HSRP

Confidential, LA, CA

Senior Network Engineer

Responsibilities:

• Troubleshooting several VoIP issues like bandwidth, call quality, one way audio, registration issues and QoS.
• Integrate VoIP with PSTN and setup voice Gateway ensuring QOS for Cisco based Voice over IP and CDR for voice call Accounting.
• Troubleshooting several scenario based and complex networking as well as VoIP related issues.
• Configuring VoIP customers on MEDIACORE VoIP SBC server as well as Multiprotocol Signaling Switch (MSW).
• Maintaining and taking regular backup of several servers including CUCM.
• Worked on 4500 Catalyst switches for the purpose of LAN requirement and for troubleshooting LAN issues.
• Involved in Troubleshooting of DHCP and other IP conflict problems.
• Performing health checks on F5 load balancers and monitoring the status of the application servers.
• Installing upgrades or hotfix to further F5 load balancing versions.
• Configured SNATS on F5 load balancer to solve several routing problems.
• Performed Switching Technology Administration including VLANs, inter-VLAN Routing, Trunking, STP, RSTP and Port Aggregation.
• Deployed a large-scale HSRP solution to improve the uptime of collocation customers, in the event a core router became unreachable.
• Configured RSTP, LACP and VTP on Nexus devices.
• Network consists of Heavy Cisco equipment such as Cisco 2500, 2600, 3640, 3945, 7200 series Routers, Cisco 6500, 4500, 3560, 2950, 2924 Switches, Cisco Pix firewall 500 series and Wireless Access points Cisco 1230.
• Performed RIP & OSPF Routing Protocol Administration.
• Experience in deploying EIGRP/BGP redistribution and the changing the metrics for the primary and backup paths for the packet prioritization and EIGRP tuning.
• Involved in Troubleshooting IP Addressing Issues and Updating IOS Images using TFTP.
• Handling network devices such as Switches (Cisco Catalyst 2900 and 3500 series), Routers (Cisco 2600, 2800 and 7200 series), Firewalls, Load balancers etc.
• Maintaining Checkpoint security policies including NAT, VPN and Secure Remote access
• Configuring IPSEC VPN (Site-Site to Remote Access) on SRX series firewalls.
• Maintained Corporate Firewalls & Analysis of firewall logs using various tools. Configured and troubleshooting of HSRP on Cisco routers.
• Designed and configured the commands for QoS and Access Lists for Nexus 7K and 5K.
• Involved in New Branch Network Systems. Resolved Network Issues and Prepared Network Documentation.
• Monitored performance of Network and Servers to identify potential problems and bottleneck.

Environment: Cisco 6500/4500/3560/2950/2924 switches, Cisco 7200/3945/3640/2600/2500 routers, EIGRP, RIP, VTP, RSTP, OSPF, TFTP, VOIP, Nexus 5k and 7k switches

Confidential, Auburn Hills, MI

Network Security Engineer

Responsibilities:

• Worked on 2600, 3500, 7613Cisco Routers and 4500 and 6500 series Cisco Switches.
• Played responsible role for implementing, engineering, & level 2 support of existing network technologies / services & integration of new network technologies / services.
• Configured and managed Cisco access layer routers and switches
• Provided support for troubleshooting and resolving customer reported issues
• Worked on F5 BIG-IP LTM 8900, configured profiles, provided and ensured high availability.
• Worked on F5 and CSM load balancers deploying many load balancing techniques with multiple components for efficient performance.
• Configured and managed OSPF redistribution and authentication with type 3 LSA filtering and to prevent LSA flooding and also configured OSPF over frame relay networks.
• Designing, configuring, implementing and troubleshooting (LAN) VLAN’s, VTP, Spanning Tree (STP), Trunking (dot1q and ISL) and Ether channel.
• Experience with convert Checkpoint VPN rules over to the Cisco ASA solution. Migration with Cisco ASA VPN experience
• Implemented site to site VPN in Juniper SRX as per customer.
• Implemented various EX, SRX & J series Juniper devices.
• Implementing and managing traffic engineering on top of an existing Multiprotocol Label Switching (MPLS) network using Frame Relay and Open Shortest Path First (OSPF).
• Configuring HSRP for network redundancy and High availability.
• Involved in designing of LAN (Ethernet) and WAN infrastructure for the new Data Centre Using MS Visio.
• Configuring VPN for site-site and remote access.
• Designing and configuring IP address schemes.
• Maintaining Cisco hardware and Cisco IOS upgrade.
• Configured Cisco 1231 Access points with 5959 and 4941 antennas (802.11/a/g).
• Designing, configuring, implementing and troubleshooting (LAN) VLAN’s, VTP, Spanning Tree (STP), Trunking (dot1q and ISL) and Ether channel.
• Implementing and managing traffic engineering on top of an existing Multiprotocol Label Switching (MPLS) network using Frame Relay and Open Shortest Path First (OSPF).
• Configuring and implementing F5 BIG-IP, LTM, GTM load balancers to maintain global and local traffic
• Planned, tested and evaluated various equipment’s, systems, IOSs and procedures for use within the Network/ security infrastructure.
• Upgrading IOS, troubleshootingnetworkoutages.
• Configuring RIP, OSPF and Static routing on JuniperM and MX series Routers.
• Having Data Center Design Experience, installing and Configuring Network Devices in a Data Center including patching the cables in the Patch Panel. Design and implemented network.
• Hands-on experience in the network management of circuits using TDM and Frame Relay network, performing configuration and provisioning management, fault management and performance monitoring.
• Configured HSRP and VLAN trucking 802.1Q, VLAN Routing on Catalyst 6500 switches.
• Extensively worked on Nexus 5k and 7k, configured and troubleshooted.
• Expertise in developing Complex Automated Script Framework, utility functions manually for HTTP(S) Protocol as per CMMI level 5 standards using Network Sniffers like HTTT Watch, and Firebug.

Environment: Cisco 3640/1200/7200/3845/3600/2800/2600/3500/7613 Routers, Cisco Wi-Fi routerISP, 800, MSE, Cisco 3750/3550/3500/2960/4500/6500 Switches,LAN,WAN,EIGRP,OSPF,RIP,BGP,F5 Load Balancer,VTP,VLAN,HSRP,HTP,IPV4,Nexus 5K,7K,LTM,GTM

Confidential

Network Engineer

Responsibilities:

• Work includes getting faulty cables/modules/GBICs/Xenpac replaced, shifting bad ports, and opening trouble cases with peering ISPs for major core or edge backbone link down incidents, etc.
• Handling high priority escalations along with other teams in cases of edge and core devices going offline, redundancy loss, high latency in the network, high discards in network segments, etc.
• Working with vendors such as Cisco, Juniper, F5, Brocade, etc. for root cause analysis of problems with the respective devices.
• Handling over 4000 network incidents every month along with team members.
• Troubleshot Cisco hardware: Inspected devices, Read device LEDs, loose connections, interior IOS upgrade, switch port configuration, port monitoring, watch over Flooding Control/Network port.
• Strategies include operating systems, virus protection, mail systems and Internet services.
• Updated the anti-virus, spam blockers, and other security software so that the systems are always secured
• Resolved all computer related problems, monitored and maintained system functionality and reliability by identifying ways to prevent system failures
• Installed and configured DHCP, DNS Server.
• Identifying technical problems and debugged hardware and software related to LANs/ WANs.
• Switching related tasks included implementing VLANS, VTP and configuring ISL trunk on Fast - Ethernet channel between switches.
• Upgrading IOS, troubleshootingnetworkoutages.
• Develop and implement strategies to support the current and future needs of the company.
• Configured Cisco Routers 2600 series using RIP, OSPF, and EIGRP.
• Configured Cisco Switches 2900.

Confidential

Network Engineer

Responsibilities:

• Configuring and troubleshooting multi-customer ISP network environment.
• Involved in network monitoring, alarm notification and acknowledgement.
• Implementing new/changing existing data networks for various projects as per the requirement.
• Troubleshooting complex networks layer 1, 2(frame relay, ATM, Point to Point, ISDN) to layer 3 (routing with MPLS, BGP, EIGRP, OSPF and RIP protocols) technical issues.
• Providing support to networks containing more than 2000 Cisco devices.
• Performing troubleshooting for IOS related bugs by analyzing past history and related notes.
• Carrying out documentation for tracking network issue symptoms and large scale technical escalations.
• Managing the service request tickets within the phases of troubleshooting, maintenance, upgrades, fixes, patches and providing all-round technical support.
• Commissioning and Decommissioning of the MPLS circuits for various field offices.
• Preparing feasibility report for various upgrades and installations.