SUMMARY

• 7 + years of experience in Network design, deployment and operations of both Cisco and Juniper Networks
• 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.
• Very sound knowledge IPV4/IPV6, implementation of Subletting, VLSM and ARP, reverse & proxy ARP, Ping Concepts.
• Experience in installing, configuring and troubleshooting of Checkpoint Firewall and Juniper SSG series.
• Experience in adding Rules and Monitoring Checkpoint Firewall traffic through Smart Dashboard and Smart View Tracker applications.
• Design and configuring of OSPF, BGP on Juniper Routers and SRX Firewalls
• Implemented traffic filters using Standard and extended access - lists, Distribute-Lists, prefix lists and Route Maps.
• Design, develop, and document comprehensive test plans to setup of test scenarios, both hardware and software components, and Executes and update test cases with TCL/TK scripting.
• Moderate 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.
• Hands on experience on Up-gradation of Cisco IOS of different Cisco devices & modules.
• Well Experienced in configuring protocols HSRP, GLBP, VRRP, ICMP, IGMP, PPP, HDLC, PAP, CHAP, and SNMP.
• Strong hands on experience in installing, configuring, and troubleshooting of Cisco Nexus 7k, 5k, 2k, Cisco 7600, 7200, 3800, 3900, 2800, 2900 series Routers, Cisco Catalyst 6500, 4500, 2960 and 3750 Stack Switches.
• Designed and deployed new Cisco catalyst 6513 and 6509 with dual Supervisor Engine 720 at both Distort and Core layer.
• Experience working with OTV & FCOE on the Cisco Nexus 7010/5548 between the datacenters
• Responsible for Cisco ASA firewall administration across our global networks
• Worked on F5 LTM, GTM series like 6400, 6800, 8800 for the corporate applications and their availability.

TECHNICAL SKILLS

Operating Systems: Windows (Server 2003/2008, Vista, Windows 7), Basic Linux OS, Sun Solaris OS

Routers: Cisco GSR12016, ASR1001, 2900, 3900, 7200, 7600 & ASR9000.

Switches: Cisco 3750, 4507, 4510 & 6500 series switches, Nexus 7010, 5548, 2448

Routing Protocols: MPLS, OSPF, EIGRP, BGP, RIP-2, PBR, IS-IS, Route Filtering, Redistribution, Summarization, Static Routing.

Switching Protocols: LAN, VTP, STP, PVST+, RPVST+, Inter VLAN routing & Multi-Layer Switch, Multicast operations, Layer 3 Switches, Ether channels, Transparent Bridging.

Network security: Cisco (ASA, PIX) 5510, ACL, IPSEC VPN, GRE VPN, Check point

Load Balancer: F5 Networks (Big-IP) LTM Module, Cisco ACE 30 load balancer

LAN: Ethernet (IEEE 802.3), Fast Ethernet, Gigabit Ethernet.

WAN: Leased lines 128k - 155Mb (PPP / HDLC), Channelized links (T1/DS3/OC3/OC12), Fiber Optic Circuits, Frame Relay, ISDN, Load Balancing.

Various Features & Services: IOS and Features, HSRP, GLBP, IRDP, NAT, SNMP, SYSLOG, NTP, DHCP, CDP, TFTP and FTP Management.

AAA Architecture: TACACS+, RADIUS, Cisco ACS

Network Management: SNMP, Solar Winds, HP open view, and Wire shark

Reports: Microsoft (Visio pro.)

PROFESSIONAL EXPERIENCE:

Confidential, Phoenix, AZ

Senior Network Engineer

Responsibilities:

• Experience with deploying the Layer 3 MPLS VPN in all the Branches and Campus locations.
• Implement and configured GLBP (on core switching and also for VPN redundancy), HSRP on different location of office on the switched network and managing the entire multilayer switched network
• Configuration and troubleshooting on HSRP, VRRP, GLBP, RSTP, MST related issues coming in network environment
• Configuring, troubleshooting routing and switching issues and related protocols associated with packet networks including MPLS and traffic engineering (QoS)
• Implemented upgraded firewall platform built on Checkpoint Firewall Technologies.
• Key contributions include troubleshooting of complex LAN/WAN infrastructure that include routing protocols EIGRP, OSPF & BGP
• Provide consultancy services to customers on a variety of network security products including firewalls, VPNs, authentication, load-balancing, data loss prevention, security information and event management
• Configuring Virtual Chassis for Juniper switches EX-4200,Firewalls SRX-210
• Involved in configuring Checkpoint firewall and applying rules to pass servers and switches through firewall.
• IOS upgrade in Nexus 7010 through ISSU (In service software upgrade)
• Configuring numerous LAN/WAN technologies including leased point-to-point circuits,MPLS, ISDN, various Ethernet speeds/media
• Worked extensively in Configuring, Monitoring and Troubleshooting Cisco's AS5500/PIX security
• Appliance Failover, DMZ zoning, & Configuring VLANs/routing/NaTing with the Firewalls as perthe design.
• Enabled STP attack mitigation (BPDU Guard, Root Guard), using MD5 authentication for VTP, disabling all unused ports and putting them in unused VLAN and ensuring DHCP attack prevention where needed
• Provided redundancy in a multi homed Border Gateway Protocol (BGP) network by tuning AS-path.
• Worked on Juniper J series j230, M 320 routers and EX 3200 series switch.
• Designing, configuring, implementing and troubleshooting (LAN) VLAN’s, VTP, Spanning Tree (STP), Trunking (dot1q and ISL) and Ether channel.
• Replace Campus Cisco 6509 End of Life hardware with new 4507/4510 devices.
• Experience with layer 2 securities which was implemented using a dedicated VLAN ID for all trunk ports, setting the user ports to non-trucking, deployed port security when possible for user ports
• Experience with migrating all the Partner IPSEC VPN tunnels from one data center to another data center.
• Designing and configuring IP address schemes.
• Involved in the removal of EIGRP from all devices and making OSPF the primary routing protocol.
• Involved in the modification and removal (wherever necessary) of BGP from the MPLS routers.
• Worked on Solar winds Orion for analysis and monitoring purposes
• Deployed the Cisco 3500 Access Points using Cisco Wireless controllers 5500 and 2500 and WCS System
• Configured and supported Cisco firewall PIX 500 series.
• Configuring AAA using Tacacs+ and ACS server.
• Key contributions include troubleshooting of complex LAN/WAN infrastructure that include routing protocols EIGRP, OSPF & BGP
• Involved in the redistribution into OSPF on the core ASA firewall.
• Configured and maintained f5 load balance

Confidential, Englewood, CO

Network Engineer

Responsibilities:

• 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
• Supporting EIGRP and BGP based PwC network by resolving level 2 &3 problems of internal teams & external customers of all locations.
• Configuring STP for switching loop prevention and VLANs for data and voice along with Configuring port security for users connecting to the switches.
• 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
• Network Cabling, dressing, labeling and troubleshooting various network drops onsite
• Involved in troubleshooting of DHCP and other IP conflict problems
• Working on Network design and support, implementation related internal projects for establishing connectivity between the various field offices and data centers.
• Configuring HSRP between the 3845 router pairs for Gateway redundancy for the client desktops.
• ConfigureVRRP & GLBP andVLANTrucking802.1Q & ISL, STP, Port Security on Catalyst 6500 switches.
• Network Cabling, dressing, labeling and troubleshooting various network drops onsite.
• Involved in L2/L3 Switching Technology Administration including creating and managing VLANs, Port security, Trucking, STP, Inter-Vlan routing, LAN security.
• Ensure Network, system and data availability and integrity through preventive maintenance and upgrade.
• Providing daily network support for national wide area network consisting of MPLS, VPN and point-to point site.
• Worked on the security levels with RADIUS, TACACS+.
• Completed service requests (i.e. - IP readdressing, bandwidth upgrades, IOS/platform upgrades, etc)
• Handled SRST and implemented and configured the Gateways, Voice Gateways.
• 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.
• Worked on commissioning and decommissioning of the MPLS circuits for various field offices.
• Complete knowledge of f5 load balance.
• Worked on paloalto (PA-7050).
• Maintained Checkpoint firewall

Confidential, North Quincy, MA

Network Administrator

Responsibilities:

• Provide technical support for clients with dial-up internet issues.
• Monitoring the NMS system for different Network Alerts.
• Installed and configured DNS and DHCP server.
• Checking and configuring Cisco 7613 routers at data center for remote sites’ issues.
• Configuration of Access List ACL (Std, Ext, Named) to allow users all over the company to access different applications and blocking others.
• Ensure problems are satisfactorily resolved in a timely manner with focus on providing a high level of support for all customers.
• Working on Cisco 6509 and 4507 series switches for LAN requirements, that includes managing VLANs, Port Security and troubleshooting LAN issues
• Designed and installed new Branch network systems. Resolved network issues, prepared network documentation.
• Responsibilities also include technical documentation of all upgrades done
• Attending meetings and technical discussions related to current project.
• Involved in troubleshooting of DHCP and other IP conflict problems.
• Performed switching technology administration including VLANs, inter-VLAN routing, Trunking, STP, RSTP, port aggregation & link negotiation.
• Once trouble ticket has been created keep customer informed of status of ticket and estimated time to repair.

Confidential

Network Engineer

Responsibilities:

• Understanding of IPSEC & GRE tunnels in VPN technology implementation using Cisco IOS and have checkpoint firewall /VPN
• Hands on experience on Windows server installation components like DNS,DHCP, Active directory and ISA Application for load balancing on the servers
• Installation of windows active directory for the creation of users and groups and Assigning policies based user’s application
• Experience in Configuration of ADSL (PPPoE, PPPoA), ISDN, leased lines and frame relay connections
• Using Local Management Interface (LMI) involved in monitoring VC’s (Virtual circuits) status and network
• Congestion using FECN and BECN for Frame relay topology
• Closely monitor VPN service functionality based on two Cisco PIX 525 Firewalls and VPN accelerator card For high speed services
• Responsible for managing the TFTP logs for the VPN and firewall services and the VPN Tunnel issues like SA,RSA, ISAKMP encryption and cleared/refresh VPN
• Familiar with Remedy trouble ticketing system and the escalation of issues from level 1 through level 3 assignment in the NOC operation
• Deployment of OSPF dynamic routing NOC engineering network routers, previous.
• Provide Technical support to end-user either through remote management or onsite Based on the requirement.
• Involved in designing VPN architecture with IPSEC, VPN-Services, RADIUS-Servers, IP-addressing
• Setup sniffer traces for the error ports on switches and monitor the issues by mapping Them onto sniffer ports and logs on the sniffer
• Experience on configuration of routing protocols like EIGRP, OSPF multiple areas
• Network monitoring of LAN/WAN using tools like snort, snort snarf and ping tools.
• Maintenance of Cisco AAA server database and deployed AAA authentication, Authorization and accounting to all Cisco devices
• Involved in setting up 6500 with supervisor 2 and installing IOS/CATOS codes for the Boot up process
• Worked on the Cisco devices like 6509, 6513, 7200, 2811, 5500 and worked on all line Cards and port Configuration for the VLAN.
• Worked on PIX firewalls for building the ACL rules for the extranet connectivity and implementation of the Rules on the corporate firewalls and monitored logs for the issues
• Used Cisco-Works/solar winds for the tracing of IP address, mac-address, ports, servers attached to the various switches
• Troubleshoot the BGP neighbor flapping issues and configures RIP/BGP redistribution, implemented OSPF
• Metric tuning for the internal routing of the vanguard