Sr.Devops Engineer

• Feb 2017 - Present

principal engineer

• Jun 2014 - Feb 2017

Principal Engineer

• Jun 2014 - Feb 2017

Customer : Appdynamics , an sass based APM product company . Role: Devops Installing , configuring ,managing sass environment for Apdynamics company. Managing datacenter with 400+ physical servers Support services included : Datacenter management , application deployment , configuration management , application loadbalancing (F5 ),database management & backup sloution , shell coding , etc Truble shooting performance related issues & server hardning . Installing configuring,managing mysql master-master replication for SAAS application. F5 load balancer for configuring saas with active-passive high availablity Configure & run ansible configuration manager for deployment & configuration changes Automation of build activity using jenkins & gerrit infrastructure monitoring using icinga & pingdom Technology used : cobbler ,F5 , Mysql , Ansible, linux , Girrit , Jenkins ,apache, ha-proxy shell program etc . Customer : Ericsson Role : Devops Deployment support for openstack private cloud environment . Configuration management using ansible to automate routine manual work & hot-fix for openstack cloud environment. Various open source software case studies and implementation : Log management using Elasticsearch, Automation of openstack installation using ansible configuration .(https://github.com/venkatesun/openstack-ansible , https://www.youtube.com/watch?v=mdJnBczj280) Redhat virtualization manager. Redhat IPA server . Continuous integration solutions . Show less

Consultant

• Jan 2012 - Jun 2014

Web Consultant for NBCUniversal customer - Leading a team of 24/7 support for day-to-day running of client web application for NBC Universal company .Support model includes change management & problem management . Directly dealing with the client , analyzing and reviewing proposals from the customer , providing appropriate solutions to problems, and making decisions Providing operation support for 300 + Linux server running with open source application jboss, tomcat, apache , drupal , memcache,solr etc ... Supporting day to day l2, l3 request for dev, stage & production's high availability web, application servers Designing infrastructure layout based on customer requirement for new application. Creating process flow map for new applications. Developing shell program to automate day to day activities & administrating functions. Analyzing jboss memory performance & tune the configuration for better memory management . Work with development team, perform application testing , capture the server performance & suggest the hardware/software changes Up-gradation and migration support for NBC internal and public web application . Automation of deployment procedure using continuous integration tools. Analyzing performance issue using , Opnet application performance analyzer. Show less

Assistant Manager

• Apr 2010 - Dec 2011

Leading IT ServerTeam - managing open source application & providing data center support for 500+ physical/virtual linux servers.Planning installation of open source tools , software & hardware sizing for customer specific request .Participate in customer call and update operation statics,enhancement & addressing day to day issues . Migration of web server from customer location to our on-premise data center.Migrated csscorp data center from redwood city to boston data center. Running with 50+ business critical application . Hands on SAN configuration in eva 4000 series.Designed VMware infrastructure with HA & 25% FT mode . Master-Master Mysql replication between different sites .Consultation work for web application performance tunning , penetrating testing , hardening etc Show less

Team Lead

• Apr 2008 - Apr 2010

Leading l2 & l3 linux support team .Designing,installing and implementing VMware ESX server, VMware virtual center, setting up V-Motion, HA, DRS, and related VMware products such as VM Workstation, VMware converter.Managed internal data center hosted with more then 50+ web servers running with apache ,mysql & 100+ linux servers for other various functions .Web application support for jboss & tomcat .Hands on san administration (hp eva 4000 series )Penetration Testing for Linux Distributions using Nessus .Load balancing of application & web server using different open source web proxy server .(mod_proxy,mod_jk, ha_proxy) Centralized log server using php-ng Planing DRS for business critical application.Open source ldap administration .Manging DNS service with HA mode & connected with more then ten operation center located in India,US,PH Show less

Senior System Engineer

• Apr 2007 - Apr 2008

Installing Configuring linux system & l2 support for data center servicesConfiguring software RAID and LVMCompiling and installing modules with insmod dynamically into the running kernel.Compiling kernel for specific functionalityInstalling new software, patching software, update software, compiling the source code for specific programs.Hardening of linux server visualization of linux server using zen and kvm kernel modules.Apache web server management .

System Administrator

• Jan 2005 - Apr 2007

Linux system administrator Linux system administrator