Karthik P

F* Load Balancer Engineer

ac0250@r.postjobfree.com

+1-908-***-****

SUMMARY

Network Engineer &Security Analyst with 6+ years of working experience in Network Infrastructure, Security which includes designing, deployment and providing network support, installation and analysis for a broad range of LAN / WAN protocols, routing, switching, configuring, implementation, troubleshooting of complex networking system.

Experience in design, Deploying & Troubleshooting F5 Load Balancer Includes BIGIP Series 5050V, 10000V, 8900, 6900, and 3900.

Hands on Experience in configuring F5 objects, components and provisioning various modules like LTM. GTM, ASM, APM

Experience in dealing with iRules, TMSH CLI which includes TMOS 10.2.4V - 11.6.0V and various troubleshooting tools like View, I dump and health diagnostic tool

Experiences dealing with OS upgrading/Patching for various vendors like F5 (TMOS), CISCO (IOS, NX-OS), PANOS, JUNOS, Web sense, Bluecoat.

Working experiences with Routers, Switches, Load Balancers, Firewalls and Proxies.

Excellent hands on experience in configuring Cisco Nexus 2248T, 2224T, 5548P, 5596T, 6000, 7010, 7018, 7710 switches. Also, implemented VDC and VPC on the Nexus 5505, 7010, 7710 switches.

Hands on experience in performing various configurations on Access, Distribution and Core layer switches like Cisco Catalyst 2960, 3750, 4507, 4010, 6506, 6509 switches.

Hands-on experience in implementing and troubleshooting Switch technologies such as STP, VTP, 802.1q, VLAN and MPLS.

Experienced in configuring, deploying, maintaining, and troubleshooting of routing protocols like RIP, OSPF, EIGRP and BGP on Cisco 1800, 2600, 3600, 7200 and 7600 routers. And also, performed Policy based routing.

Expert level knowledge on IP Addressing, Subnetting, VLSM, OSI model, TCP/IP model.

Using IP Address Manager (IPAM) provides a centralized management of the IP address space, including IPv4 and IPv6 Address Management.

Proficient in implementing first hop redundancy protocols like HSRP, VRRP, and GLBP.

Understand the JUNOS platform and worked with IOS upgrade of Juniper devices

Hands-on experience in creating security zones and security policies on branch Juniper SRX 240 and SRX 100 firewalls.

Proficient in implementing Security policies like NAT, PAT & Access lists.

Experience in administration and designing web proxies which includes Bluecoat.

Experience in design, installation, configuration, maintenance, migration and administration of Check Point Firewall R55 up to R77.

Experience in supporting and troubleshooting Unix/Linux Networking services and protocols like OSPF, LDAP, DNS, DHCP, FTP, SSH and Monitoring tasks on Linux server services.

Good knowledge on IP address management (IPAM) applications for planning, tracking, and managing the Internet Protocol address space used in a network.

Experience in Policy based filtering using Palo Alto Firewalls.

Experience working with Palo Alto GUI Panorama.

Experience in migrating Check point to the Cisco ASA Devices. Also, migrating from Cisco to Palo Alto.

Extensively used the packet capture tools like TCP dump, Wireshark and snoop on the devices to identify the potential network issues.

Proficient in using MS Visio for documentation purposes.

Hands on experience in configuring VoIP phones using asterisk.

Work Experience

American Greetings, Cleveland, OH April 2015 to Till now

F5Load Balancer Engineer

Responsibilities:

Working with the internal users and clients to determine the network requirements and application functionality.

Working with the sales and Project management teams to setup expectations and design requirements.

Design & Installations from ground up of the F5 appliances and the solution delivery.

Upgrades and Migration from old infrastructure to new infrastructure.

Work also included the Rack and Stack, wiring, printers UPS installs, cisco css.

Take care of the Logging issues of the F5 load balancer and how it works with the syslog servers making sure the communications through the switches and routers and firewall hops work as expected.

Resolving certificate related issues like chain, ca, san, ica etc. and client training with documentations.

Perform network engineering, design, planning LTM & GTM, APM load balancing implementation and scheduling infrastructure related tasks by coordinating with other teams.

Production and new implementation support in the environment both within the Datacenter and remotely for test, lab and production.

Configuration of remote syslog server functionality and collection of data setting up snmp traps, setting alerts using the EMs, eg. Certificate expiry etc.

Troubleshooting the issues with the application owners hosted on the F5 environment in the 3- tier environments.

Perform product installation and cabling in the Datacenter, determining communications.

Support and trouble shoot with various networking tools such as TCP-DUMP, ssldump, ping, telnet etc. Provide data backups.

Maintaining the SSL certificates for various applications hosted on the F5s and servers on the hardware.

Installing the F5 TMOS upgrades/downgrades, Hot-fix installations depending on Business need.

Prepare test plans for checking the configuration on the CLI, and GUI. writing basic, iRules, scripts

Resolving routing issues and timing issues along with, developers, weblogic and data-power teams supporting various applications.

Determining the functionality with the DNS naming conventions and migrations from old loadbalancing environments to the F5 environment.

Columbia Sports Wear, Portland, OR February 2014 to Mar 2015

F5 Load Balancer Engineer

Responsibilities:

Worked on F5 BIG-IP LTM 8900, configured profiles, provided and ensured high availability

Knowledge in implementing and configuring F5 Big-IP LTM-6400 load balancers

Used load balancers ACE and load balancing technique with multiple components for efficient performance and to increase reliability through redundancy

Designed perimeter security policy; Implemented Firewall ACL's; Allowed access to specified services; Configured Client VPN technologies including Cisco's VPN client via IPSEC

Configured Firewall logging, DMZs and related security policies and monitoring

Provided engineering and support expertise on Cisco Unified CM Administration to include Cisco Call Manager version 9.1, CUCE, Cisco Unified Call Manager (CUCM), Cisco Unity Connection, Cisco IM and Presence, Jabber 10.5, and UCCX.

Worked with interfacing SIP trunks for call termination and perform all software, patch upgrades to voice network devices including IOS upgrades for Cisco 4500 L3 series POE switches.

Established and maintained maintenance logs for all voice network devices.

Served as SME for Cisco Unified Contact Center Express and associated peripheral devices including Cisco IP Communicator.

Worked on solving logging issues of the F5 load balancer and how it works with the syslog servers making sure the communications go through the switches and routers.

Performed network engineering, design, planning LTM & GTM load balancing implementation and scheduling infrastructure related tasks by coordinating with other teams

Provided technical support and training to end-users and participated in special projects depending on the requirement.

Successfully provided preventative maintenance, troubleshooting, and administrative support for the Tandberg VTC (teleconferencing) network and 24x7 Network Operations Center.

Efficiently provided support for all integrated audio systems and ancillary equipment • Implementation of F5 BIGIP on A-VDGS (Aircraft Visual Docking Guiding System), ELV Systems such as FIDS(Flight Information Display System) PA (Public Addressing) and MC (Master Clock) for proper load balancing

Blue Cross BlueShield, Jackson, MS April 2013 to January 2014

F5 Load Balancer Engineer

Responsibilities:

Worked as F5 load balancer engineer involving complete support day in and out work on the F5 loadbalancers LTMs, GTMs, EMs, ASM, and Firepass in Datacenter and remote functions.

Working with the client to determine the network diagram and application functionality drawing the network diagrams using Visio.

Take care of the Logging issues of the F5 load balancer and how it works with the syslog servers making sure the communications through the switches and routers.

Perform network-engineering, design, planning LTM & GTM load balancing implementation using service now ticketing system.

Production and new implementation support in the environment both within the Datacenter and remotely for test, lab and production.

Configuration of remote syslog server functionality and collection of data setting up SNMP traps, setting alerts using the EMs, eg. Certificate expiry etc.

Troubleshooting the issues with the application owners hosted on the F5 environment in the 3- tier environments.

Perform product installation and cabling in the Datacenter, determining communications.

• Support and trouble shoot with various networking tools such as TCP-DUMP, ping, telnet etc. Provide data backups.

Maintaining the SSL certificates for various applications hosted on the F5s and servers on the hardware.

Installing the F5 TMOS upgrades, Hot-fix installations depending on Business need.

Prepare test plans for checking the configuration on the CLI, and GUI. writing iRules, scripts

Johnson & Johnson, New Brunswick, NJ Feb 2011 – Mar 2013

F5 Network Engineer

Responsibilities:

Configuring of Virtual Servers, Pools, Nodes and load balancing methods on F5 LTM.

Worked on device series like Chs402762s, chs403931s and models likev2400,4200,5200,3400,8900, 6400, 6800, 8800 and Versions like 11.5.x(11.5.1,11.5.3,11.5.4),10.1.0,10.2. x.

SSL offloading, Cert management and Troubleshooting experience on F5 using TCP and SSL dumps and Wireshark analysis.

Working experience with Load Balancers F5 LTM like 3900, 6900, 4200V over various environments.

Technical support for improvement, up-gradation & expansion of the network architecture as per business requirement.

Capable enough to work independently with minimal supervision and multitasking.

Worked on upgrading F5 device from 11.4 to 11.5.3 to remediate HTTP classes and profiles and Upgrading and relicensed F5 LTM.

Configuration, migrations, upgrades of F5 Big IP LTM 3400, 6400, 8900 running v4.x to 10.2.x, Active/Standby.

Worked on SSL handshake proxied to a Big-IpViprion to do all the hardware SSL work dealing with layer 4 throughput work, to upgrade the SSL license limits.

Comfortable working with both command line interface and the GUI access of an F5.

Configuring Cisco 3750, 6500 catalyst switches and Nexus 5000,7000 and routers 2600, 2900, 3600, 3900, 7200 series

Security policy configuration including NAT, PAT, VPN, Route-maps and Access Control Lists.

Configured F5 GTM Wide IP, Pool Load Balancing Methods, probers and monitors recreating Http and https redirect VIP's to client from data servers.

Worked on F5 issues using packet capture like TCP dump, Wireshark and SolarWinds and curl commands.

Experience on 2400 Viprion model, creating Guest's, upgrading new F5 hardware, installing, licensing, configuring and upgrading.

when required Teaming up with the app teams, setting of new applications on the F5 as per requirement.

Worked on DNS using vital QIP application for DNS related work to provide domain resolution for VIP on both LTM and GTM.

Design and deployed F5 LTM and GTM load balancer infrastructure per business needs from the ground up approach.

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