SUMMARY:

• A Network Engineer with over 5+ years of practice experience in the plan, design, implementation and support of LAN/WAN, VLAN, VPN networks. Skilled in Juniper, Cisco and Microsoft network environment.
• Experience in configuration of multiple Citrix Access Gateway and Enterprise Citrix Netscaler SSL/VPN solutions.
• Extensive knowledge of Citrix Netscaler content switching configuration.
• Experience in Citrix Netscaler version 10.x with configuration of virtual servers, services, health probes and access gateway policies.
• Dealt with Netscaler Load Balancers i.e, 5550, 5650,7500, 8200, 8400, 8600 models.
• Dealt with configuration and Implementation of Citrix NetScaler features including: Load Balancing, Content Switching, SSL Offloading, URL Rewriting, Responder, Global Server Load Balancing (GSLB), GSLB Routing Methods, Content Filtering, Coaching/Compression, Application Firewall and version upgrades.
• Experience in testing F5 BIG IP LTM & GTM devices in laboratory scenarios and deploy on site for production
• Dealt with Local traffic managers, Global Traffic managers of the series like 1000, 2400, 3400, 1500, 4200, 4000, 4480, 6900, 8900, 8800, and 6400 and F5 APM,ASM application security
• Extensive experience in configuring LTM devices during the migration process of pools, members, virtual servers (VIP), nodes, SNAT
• Hands on experience with the usage of diagnosis tools like Qkview, TCPDUMP for analyzing the real time statistics during the packet flow
• Worked on updating the SSL s on the LTM boxes for new URL sites and their DNS entry with GTM boxes and configured F5 ASM security policies and HTTP classes
• Worked on upgrading the 3DNS hardware modules to high end version Global traffic managers (GTM) for load balancing across the multiple data centres
• Proficient with the usage of BIGPIPE, BIGTOP utility commands and usage of command line interface during script configuration
• Installed SSL s on F5 LTM for the all the URL with encryption 1024 and 2048 bit encryption systems
• Worked on updating the WIDE IP for the various applications located on our server farm and their respective VIP, Pool, pool members and node information on the GTM
• Worked on SSL s and installation for the Farm URL for the secured transactions through CERT Director from Venafi
• Worked on upgrading the LTM and GTM boxes from TMOS version 9.x to10.x for the local traffic managers
• Knowledge on iControl and the scripting of TCL in writing the iRules to control the traffic across the F5 LTM boxes
• Managing and monitoring Access lists and monitoring firewall, dealing with Malware, Spy ware. Expertise in medium/large sized LAN/WAN design/configuration & implementation with CISCO, Juniper and Foundry equipments, wireless network design/configuration & implementation, strong working knowledge on Wide Area Networks (WANs) e.g. T1, ISDN, Frame Relay, PPP, ATM, HDLC, Traffic Shaping and Load Balancing etc., support of multi - vendor routers and switches.
• Strong hands on experience in configuring CISCO based routing e.g. RIP, EIGRP, IGRP, OSPF, BGP, HSRP, VRRP, route redistribution etc., and switching e.g. VLAN implementation, STP, VTP, NBAR, RSTP and wireless connectivity. Access lists.
• Professional hands on experience in designing cable and wireless networks, structured network cabling such as STP, UTP, coaxial etc., installation and configuration of LAN, WAN and wireless networks with active components such as routers, switches, firewalls, modems, access points, repeaters etc. break / fix engineering
• Quality of Service: Congestion Management and Avoidance, Policing, Shaping, and Link Efficiency.
• Network monitoring and testing from Operation Center (NOC) from a network management perspective.
• Developed IT strategies, policies and procedures consistent with the businesses strategies and vision while effectively protecting: data integrity, security and limiting liability.
• Extensive Experience of Operating Systems including UNIX, Windows 95/98/ME/2000/NT/XP, Linux and Novell.

TECHNICAL SKILLS:

Operating Systems: Windows (Xp/vista/2003/7 and server 2008), Linux, Unix, Macintosh OSX, Cisco IOS, NX-OS

Languages: C, Perl, TCl

Hardware: Cisco Routers 17xxs/25xxs/26xxs/37xxs, Cisco Switches 19xx, 29xx, 35xx, 37xx, 45xx, 65xx, Nexus 7k, 5k, 2k etc.

F5 BIG IP hardware: LTM/3DNS/GTM/ASM/APM: 6900, 6800,6400, 5100, 3400, 4000, 4200 and 2400, 4480

Citrix NetScaler: MPX 5550, MPX 8015 and 11XXX, MPX17550, MPX19550 series ADC appliances.

Network Services: Server Administration, Network Protocols such as TCP/IP, Ethernet, token ring, routers, switches, hubs, network cabling, firewall, network security, DHCP, DNS, troubleshooting network connectivity, Routing and Remote Access configuration, VPN configuration, Remote Desktop, LAN/WAN management,VoIP.

Routing protocols: Routers, Routing Protocols (EIGRP, OSPF, RIP, ISIS, IGRP); Route Optimization using (summarization, Redistribution); IP Addressing, IP Sub netting, VLSM, CIDR.

PROFESSIONAL EXPERIENCE:

Confidential, NJ

Senior Network Engineer

Responsibilities:

• Worked on F5 LTM, GTM series like 3600, 4000, 4200 and Viprion series 2400 and 4480 for load balancing the corporate applications across multiple datacenters.
• Worked extensively on Viprion system Active/Standby high availability LTM clusters running on 11.4 version for creating the VIPS, pool, pool members.
• Worked closely with Application teams to understand their requirement and develop the code accordingly. Also help migrating code from different stages like from, Dev to QA and QA to Prod.
• Involved in writing iRule syntax using TCL language and iRule extension to TCL for complex business requirement.
• Worked on writing iRules for pool redirection based on unique uri, session persistence using JSESSIONID, URL redirect, http to https redirect for standard and non standard ports, for SNAT etc.
• Worked on migration from Cisco ACE configuration to F5 compatible configuration for the corporate applications in prod and non-prod environments.
• Also worked on configuring Citrix NetScaler for creating NSIP, VIPs, GSLBIP, MIPs for application server load balancing.
• Worked on handling SSL s on Citix Netscaler.
• Hands on Experience testing iRules using Browser(IE), HTTP watch, curl, Scripts(shell/batch file/perl) and host files
• Worked on content routing requests, generating SSL s and keys, creating SSL profiles for ssl offload at F5 LTMs.
• Also involved in enforcing and configuring virtual servers not to use SSLv3 as a cipher due to POODLE vulnerability.
• Dealt with creating F5 VIP(virtual servers), pools, nodes, monitors, iRules, persistence profiles.
• Involved in creating health monitors from simple (TCP, Half TCP) to advance (HTTP, HTTPS) to check the status of members and the services offered by them.
• Worked on implementing OneConnect and Universal persistence profiles to maintain and manage the persistence connection for user sessions.
• Proficient knowledge in (TMOS) Traffic management operating system of BIP IP followed by Packet-by-packet architecture to full proxy architecture
• Worked also in troubleshooting the TCP packet based on fiddler, tcpdump and httpwatch.
• Also worked on Nexus 7000, 5000, and 2000 series L2/L3 switches for migrating production server’s management ports (iLO and NIC ports) from legacy switches to 2K fabric extenders and 5K.

Confidential

Network Engineer

Responsibilities:

• Implementation and management of Cisco, UNIX network on a daily basis for DSL /Wireless subscribers; Provide high level technical support, including identifying and resolving problems on Cisco supported products for e-Commerce infrastructure
• Work with the data center planning groups, assisting with network capacity and high availability requirements.
• Review all changes to network configuration for technical accuracy and impact and provide Multi-Protocol Network problem resolutions
• Worked on migrating the LTM 5100 version 9.2 to 5100 LTM version 9.4 and F5 ASM configurations
• Worked on updating pools, members and nodes using the GUI interface for the local traffic managers
• Involved in writing iRules for the LTM and updating the existing rules based on the Engineering team’s guidance.
• Dealt with creation of VIP’s, creation of Pool members and allocation of multiple application to the various pool slots implemented F5 APM using the HTTP basic Auth, HTTP NTLM Auth and kerberos
• Experience in dealing with Bigpipe commands, Bigpipe configurations, and command line tools like Tcpdump, Qkview, Bigtop and Bigstart
• Worked on updating the SSL s to the application URL using the F5 LTM and F5 ASM
• Provide senior technical leadership, as required, for high severity problems.
• Maintain wireless access points Backhauls as required and provide continuing strategy and innovation opportunities.
• Routing related tasks included providing Cisco router configuration and change management, providing technical support for Cisco Router configurations and installation for Customer.
• Configuring IP RIPv2, EIGRP, OSPF and BGP. Deploying QOS for Network.
• Worked On WAN accelerators of Riverbed products to integrate the branch sites for better performance
• Configuring routing policy for BGP. Switching related tasks included implementing VLANS and configuring ISL trunk and 802.1Q on Fast-Ethernet channel between switches, Configuring CGMP, IGMP and PIM.
• Setting-up of ISP branch network VPN, DSL, and E1s; managing and monitoring of the WAN of Frame Relay, HDLC, X25 connections to multiple locations utilizing Cisco 7200 VXR, 3745 with BGP; monitoring of Swift DLCI in Frame Relay for Banks.
• Modifying of latest configuration to Telenet network devices such as Cisco switches, routers, PIX Firewalls; maintaining of the corporate infrastructure, which consists of redundant ISP connections.

Confidential

Network Engineer

Responsibilities:

• Re-engineered BGP routing (Route Maps, AS-Path prepend, MED, Local P) to load balance traffic across multiple ISP’s links
• Responsible for designing, implementing and troubleshooting temporary infrastructures for Live Webcasting Events
• Involved in F5 BIG IP LTM, APM administration, familiar with enterprise level traffic managers like 6800, 3600, 1600,3400 series
• Involved in updating the VIP’s for pools and pool members, updating iRules for the URL created in the new DNS entry
• Worked on updating WIDE IP for Global traffic managers (GTM) which are assigned for multiple data centers located across different geographical locations. worked on venafi encrption director for the ssl management
• Dealt with application owners and assigned ssl s based on the requirement
• Involved in configuring the sNMP module to Venafi director for the SSl cert alerts
• Troubleshoot OC-3, DS3, DS1, and ISDN connectivity issues
• Negotiate service contract with circuit carriers
• Interface with various Telcos for circuit testing and turn up
• Responsible for designing, implementing and monitoring customer Co-Location environment
• Configure Extreme Black Diamond Switches (layer 2, 3 and 4 switching)
• Design and implement security policies using ACL, PIX firewall (515, 520)and
• Provide intranet VPN solution using Cisco 2621 and IPSec Tunneling
• Configure f5 BiGip to provide Load Balancing for server farm
• Upgrade Cisco Routers, Switches and Firewall (PIX) IOS using TFTP
• Members of a team that designed and built Tier one infrastructure
• Configure Terminal Servers for out-of-band management
• Configure Traffic Shaping to optimize utilization on ATM Backbone
• Build and maintain Visio documentation database of network topology
• Help establish guidelines and standards for Change Procedures

Confidential

Data Network Engineer

Responsibilities:

• Experience in testing and designing with EIGRP, OSPF, IS-IS and BGP routing protocols and multi-home autonomous systems for BGP
• Worked on BGP multi-homing issues and HSRP routing troubleshoot for the CER routers and PER routers
• Experience in implementation, support and trouble shooting of VLAN’s including operational knowledge of spanning tree protocol (STP), VLAN trunking, inter VLAN routing and ISL/802.1q
• Experience in testing router series 6500 & 7500 for developed its features
• Testing and troubleshooting of circuits for layer 3 devices in WAN environment and debugging protocol issues
• Troubleshooting of Routers, installation and configuring CISCO multi-layer switches like 3550 series
• Configuration and troubleshooting of VLANs and Inter VLAN routing, Spanning Tree configuration and Trunking with 802.1q
• Worked on Cisco routers like 2500, 2600 and 3600 and worked on F5 LTM/ GTM/ASM for load balacing
• Extensive knowledge of CISCO 1900, 2900, 2950 and 3500XL series switch operation
• In depth understanding and configuration of PPP (PAP, CHAP), PPP fragmentation and ATM for LLU - use of VPI/VCI switching paths

Confidential

Network Administrator

Responsibilities:

• Worked on Windows Server administration in configuring the Active Directory, DNS server and ISA server for the corporate
• Worked on Level-2 and Level-3 network severity alerts during the on call assignments related web server and mail server issues
• Hands on experience working with SOLARIS, UNIX, and LINUX operating systems for handling Telecomm backend servers
• Deployment of OSPF dynamic routing NOC engineering network routers, previously running RIP and Static routes
• Monitoring the Network condition using SNMP protocol about the WAN connection, Switch status, printer server, and controlling projectors and other equipment remotely
• Deployment of OSPF dynamic routing in the network routers and removal of old RIP routing and static route environment
• Worked on IGRP and EIGRP implementations for client on global locations and interacting with them about the circuit status