Jul 2015 – Aug 2020 · 5 yrs 1 mo · Bengaluru Area, India

• Architected, Designed & built Openstack private cloud for the organization.
• Proficient in setting up & managing >200 computenodes
• Experience in debugging & troubleshooting Openstack.
• Successfully migrated more than 600 machines between datacenters.
• Managed and operated more than 7000 virtual machines in Openstack.
• Efficiently reduced public cloud footprint.
• Provide on-call support for production machines/servers
• Installing, configuring & troubleshooting Linux production servers.
• Enabled monitoring (internal & external) of production machines using various tools like: Nagios, Thousand Eyes, NewRelic, Sikuli etc.
• Integrate alerts from various tools like: Nagios, Thousand Eyes, NewRelic, Sikuli into PagerDuty. Create escalation policies for on-call support.
• Get into war rooms on regular basis for solving customer facing and production issues.
• Involve & escalate production issues to stake holders & resolving on-time.
• Planned & migrated more than 5000 virtual machines (VM) during acquisition.
• Identify/tune Scale & Performance issues on production servers/machines and fix them.
• Communicating with team spread across geographical locations.
• Initiate technical discussions within team, mentoring & guiding team members.

Apr 2007 – Jun 2015 · 8 yrs 2 mos · Bengaluru Area, India

• Installing, configuring & troubleshooting ESX servers, Virtual Center.
• Configuring & troubleshooting storage devices like Dell PowerVault, NetApp arrays.
• Performance testing of vCloud Application Services & CodeStream (Devops)
• Setup test rig involving various components for performance testing of CodeStream (Devops) like artifactory, Jenkins Server, Jenkins Slave.
• Setup test rig involving various components for performance testing of Appplication Services like vCAC, Puppet.
• Tuning the product for performance, scalability & increasing/changing the footprint of the product.
• Developed automation framework & maintained it by regularly fixing bugs.
• Owned & implemented various features in the automation framework using Object Oriented Perl & delivered it on time.
• Developed testplan, automated & executed them.
• Successfully handled setting-up the entire test rig remotely.
• Communicating with team spread across geographical locations.
• Providing training for the new comers & guiding them in solving the problems.
• Mentoring team members.

Nov 2004 – Mar 2007 · 2 yrs 4 mos · Bengaluru Area, India

• Designing & developing the enhancement requests from the customers & implementing it in the product.
• Handling bugs from business critical customers across the globe.
• Fixing customer bugs depending on the criticality of the bug.
• Providing timely update to the customers by following the Service Level Agreement (SLA).

Nov 2003 – Nov 2004 · 1 yr · Bengaluru Area, India

• Installing, configuring & trouble-shooting Indigo servers, Sun Blade 150/250 servers, StorageTek L180, L700 tape libraries & RAID arrays.
• Writing Linux Kernel modules for white box testing.
• Automating test setup using Expect & Shell Scripting.
• Setting up the test rig for the entire team which involved configuring SAN environment, FC switches and Storage arrays.
• Involved in different testing phase like: White box testing, system testing, and peer acceptance testing using Veritas Netbackup.
• Involved in writing High Availability (HA) resource scripts for a 2 node cluster.
• Came out with product installation scripts for the customers for beta testing of the product.
• Was involved in kernel dump analysis using kdb.
• Mentoring the team members by providing training & helping them in troubleshooting the problems.

Nov 2001 – Nov 2003 · 2 yrs · Bengaluru Area, India

• Installing, configuring & maintaining the servers.
• Generating internet usage report on a monthly basis & sending to the higher management.
• Reverse engineering & developing features for various components.
• Developed a monitoring program for Mass Spectrometer. The task was to sniff the data that Mass Spectrometer puts on 2 different ports, providing scientific computing support, reverse-engineering & writing many test programs. The program has to align the incoming packets, check for proper headers & put the decoded values in ASCII form.
• Developed a utility program for LM520 bar code reader. The task was to implement all the commands & generalizing the code.
• Developed a parser program for storing the configuration data. The parser was similar to an XML parser since it has to parse multiple sections, multiple definitions, handling duplicate sections etc.