SUMMARY

• Over 7 years of configuration, installation and administration experience in IT industry on cross platforms like Red hat Linux (4.x, 5.x, 6.x), Sun Solaris 8/9/10, AIX 7.1/7.2 and Windows 2000/2003 servers.
• Experienced in installing, backup, recovery and upgrades of Linux, Solaris and Windows 2003 server.
• Experience in Veritas File System (3.x/4.x/5.0), Veritas Cluster (3.x/4.x), and Logical Volume Manager for Disk management.
• Worked with Backup Team to Configure the Master and Client Backup servers Using Veritas NetBackup - 4.x,5.x,6.x
• Experienced in managing the server cluster environment including configuration, shares and permissions.
• Working Knowledge of IBM Shark / DS Storage Systems.
• Experience in using bug tracking systems like Remedy and HP Quality Center.
• Worked with VMware ESX 2.x servers, and Virtual Infrastructure client to create virtual machine.
• Experienced in tuning and maintaining the Kernel.
• Extensive experience in creating Users, Groups and Zones in Solaris10.
• Worked with Red Hat Package Manager (RPM) and YUM, Solaris Packages and Patches.
• Experience adding and configuring disks and creating new file systems using LVMs and RAID concepts.
• Installed, Configured, Troubleshoot NFS, NIS, NIS+, DNS, DHCP, Mail Server, Linux Cluster, Firewall and VPN Server along with backup.
• Server IP changes, patch management, performance tuning, NFS, SFTP, SAN, NAS storage handling.
• Extensively experienced with various methods of Red hat Linux/ Sun Solaris Migration using alternate Disk Installation, Kickstart / Jumpstart.
• Worked on Group and User administration, startup & shutdown scripts, Crontab, File system maintenance, Backup scripts and Automation.
• Also experienced in system analysis, troubleshooting and performance tuning of Operating Systems.
• Basic scripting done in KSH, Bash, CSH, Ruby and Perl for automated tasks.
• Worked with clients around the world to help with web site performance tuning, VPN configuration, server architecture recommendations, and many other tasks.
• Resolve technical problems as they happen, take ownership of problems & work on resolutions using both internal resources & third-party technical support partners like Red hat.
• Installing, configuring, and maintaining a cloud computing environment using Red Hat Enterprise Linux Amazon Web Services Platform.
• Having good Experience in Puppet and Chef for Deployment on Multiple platforms.
• Extensively worked on Jenkins and Bamboo for continuous integration and for End-to-End automation for all build and deployments.
• Experience in pushing and pulling codes from Git, creating branches and merging them with master branch.
• Experience in Installing, configuring and maintaining Apache Tomcat and Jboss Application Servers.
• Experience in setting up Nagios monitoring on both Linux and Windows systems.
• Experience in designing, configuring, maintaining, troubleshooting, and analyzing problems associated with Nagios.
• Proficient in tracing complexbuildproblems,releaseissues and environment.

TECHNICAL SKILLS

Operating Systems: Red Hat v 3.x,/4.x/5.x/6.xSun Solaris 8/9/10Windows NT/ AIX 7.1 & 7.2Ubuntu 6.10 & 9.10Virtualization VMware ESX

Languages: Shell Scripting - ksh, Bash and Csh, Perl, Python, Ruby

Volume Management: Logical Volume Manager, Veritas File System, Veritas Volume Manager Solaris Volume Manager

Networking Protocols: TCP/IP, FTP, DHCP, DNS, NIS, NIS+, NFS

Clustering: Veritas Cluster Server

Application Servers: Apache Tomcat and Jboss

Hardware: Sun Fire 25K, 20K, 15K, 12K, 6800/4800/3800 , Sun StorEdge 3910,6910,3310,6320.

Monitoring tools: Nagios, Zabbix

Automation tools: Puppet, chef, Ansible

Integration tools: Jenkins, Ant, Maven, Bamboo

Debugging tools: Jira

PROFESSIONAL EXPERIENCE:

Confidential, Austin, TX

Sr. Devops Engineer/Unix/Linux Administrator

Responsibilities:

• Installation, configuration and administration of Linux (Red Hat 4/5/6, CentOS 6/7/8/9/10) and Sun Solaris 8/9/10.
• Managing disks and disk groups using LVM (Linux logical Volume Manger) in virtual machines.
• Involved in upgrading VERITAS volume manager from 4.0 to 5.0 in the cluster environment.
• Troubleshooting the Issues in VERITAS Cluster Server.
• Applying Sun Solaris 9, 10 OS latest Patch in the cluster environment.
• Performed patching of Linux & Solaris servers on regular schedule, involved in up Network/SAN installations using kickstart and jumpstart.
• Executed several changes to extend the file system using VERITAS Volume Manager and also mirroring the root disk.
• Installing upgrades and administered new and existing SUN servers, workstations and RAID Arrays in a multi - platform and multi-vendor environment.
• Configuration and administration of Solaris Volume Manager (Root Disk Mirroring using SVM).
• Performing disk replacement which is under the control ofSVM and also VxVM Installing additional software, depot and patch management.
• Configuration of Zones on Solaris 10.
• Worked with customers to resolve problems related to OS, LVM/File System, user management, performance management, kernel tuning, patching, OS updated, various ARPA products like DNS, NIS/NIS+, NFS, DHCP and other link-products.
• Installed and upgraded OS and new software.
• Creating automated builds and deploys using scripts.
• Configuration of Apache web server on Solaris 10 and enabling the service.
• Responsible to analyzing and validatingthe OS of servers built by build team.
• Installed and Configured Puppet Master, Puppet Console and Puppet Agents.
• Automate the configuration changes by setting up the puppet policy based on each environment.
• Writing miscellaneous code for puppet based on environment.
• Creating puppet templates specific to application.
• Application installation, Build and troubleshooting.
• Worked on Amazon Web Services - AWS (Cloud Computing), EC2.
• Setting up the lab environment with Apache Tomcat.
• Continous build and deployment using Jenkins and Bamboo.
• Monitoring and alerting services for servers, switches and applications using Nagios.
• Implementing and customizing Nagios in an enterprise application and multi-datacenter environment.

Environment: Rhel 6.5, Sun Solaris 10, Sun fire 15k, Puppet, Aws, Tomcat, Jboss, Linux, Ubuntu, Veritas volume manager 4.0, SSH, ECM, Avocent, Jenkins, Bamboo, Nagios.

Confidential, Boston, MA

Devops Engineer / Unix/Linux Administrator

Responsibilities:

• Experience in using VERITAS Cluster Server 3.x & 4.x and Sun Cluster 2.5 & 3.1 in SAN environment.
• Creating Meta db, Soft partitions and RAID levels using Sun Solaris Volume Manager
• Installing and monitoring of VERITAS Volume Manager (VxVM) and Solaris Volume Manager on Sun Solaris
• Implementation of RAID techniques and the creation of Disk groups and volumes using VERITAS Volume manager 4.1.
• Created and configured DNS, Setup NFS and NIS in SUN and Linux Environment based Server.
• File system tuning, growing and shrinking with Veritas File System (VFS) 3.5/4.x and VxVM.
• Creating and monitoring Z-pools, RAID Levels, Snapshots and Clones using ZFS.
• Installation and configuration of Zones in Sun Solaris 10 environment.
• Jumpstart installation and NFS mounting.
• Permanent mounting of slices in vfstab with ufs options.
• Configuring Network file sharing in /etc/dfs/dfstab for end users.
• Developed shell script for Daily Health report of sun boxes and generated with Crontab.
• Responsible for Configuring and administering multiple whole-root module Zones with shared capped memory and CPU.
• Responsible for upgrading and installing new packages for Redhat Linux servers and patching Sun Solaris.
• Configured Hardware level raid mirroring on sun ultra sparc boxes.
• Worked on VERITAS cluster Installation 5.0. Cluster user management.
• Responsible for all OS patching and installing packages, Hardware and software upgrades on all Sun Solaris platforms.
• Upgraded Red hat Linux OS version.
• Troubleshoot and analyze potential problems pertaining to hardware and software.
• Documenting of various steps and procedures of implementations and Issue resolutions.
• Code complex puppet policy for the application, write custom puppet modules.
• Amazon Web Services (AWS) administration.
• Creating automated builds and deploys using scripts.
• Creating manifests and classes in Puppet for automation.
• Supported Puppet master server and Clients by installing agents and managed multiple modules and manifests
• Administration of monitoring infrastructure consisting of Nagios server with Centreon as web interface for configuration and display of performance data.
• Well experienced in monitoring whole infrastructure using Zabbix.
• Development and maintenance using Jira.
• Client co-ordination on various issues and worked in production environment.

Environment: Sun ultrasparc t5220 and t5120, AWS, Puppet, Python, Ruby, Sun Fire 4800/480/280/ V100, Sun Solaris 8 & 10,Linux,Ubuntu,Veritas volume manger4.0, HPSM, HPC, Oracle database, Oracle 10g and 11g,Hp manager service, Zabbix, Jira, SSH,X-manger 3.0, AIX, Unicenter.

Confidential

Unix/Linux System Administrator

Responsibilities:

• Installation and configuration of Red hat 5.x & 6.x and Sun Solaris 8, 9 & 10.
• Configuring and administering NFS, NIS, NIS+, DNS, and FTP on Sun Solaris server environment.
• Strong knowledge of Shell Scripts and Perl scripts.
• Regular disk management like Adding/Replacing Swappable Drives on existing servers, partitioning according to the requirements, creating New File Systems or growing existing one over the hard drives and managing file systems and adding Virtual Swap Space.
• Automation of jobs through Crontab.
• Handling day to day User Management Tasks and issues related to user access, giving the Root Permission to the local users as on demand.
• Deployed packages using yum in Red Hat Linux.
• Created logical file system in the volume group in Linux.
• Setting up of the logical volume in Linux.
• Configuration and Administration of Disk and File Systems.
• Good working knowledge in VI editor.
• Maintaining Patches and Packages to keep the servers up to date with latest OS versions.
• Involved in configuring TCP/IP, NFS, NIS, and DNS environment and mounting and unmounting the file system.
• Upgrading Sun Solaris 8/9 to 10 using Live Upgrade and Manual Upgrade, Jumpstart Severs.
• Performing day-to-day system administrator activities, troubleshooting, and storage assignments.
• Worked on given technical that requires immediate attentions to ensure maximum system availability 24hrs, 7 days a week.

Environment: Red hat Linux 5.x & 6.x, Sun Solaris 8, 9, and 10, HPUX 11.31, VMWare, Korn Shell, Sun 10K and 12K, Veritas Volume Manager 4.1, Solaris Volume Manager, Veritas Cluster Server, WebLogic 8.1, Samba, Oracle 9i/10g, EMC Symmetric, Sun Fire X 4100/4500/4600 , Sun workstations (80,100).

Confidential

Unix/Linux Admin

Responsibilities:

• Managing and maintaining Red hat Linux 6.x and Sun Solaris 8,9,10.
• Performed custom Jumpstart to Install Sun OS on sun servers/workstations.
• Installation, adding and replacement of disks, cards and maintenance of SUN.
• Implemented NFS, DNS and NIS under SUN.
• Performing OK Boot Prompt tasks.
• Backing up & Restoring File System using ufs dump.
• Monitoring system performance, tune-up kernel parameter, adding /removing /administering hosts, users,disks on DNS /NIS domain.
• Maintenance of NFS server with Auto mount.
• Writing shell scripts to automate system Process.
• Take daily backup of data from the server.
• Adding more resources like Memory and CPU's, and increasing the swap.
• Installation of OS (Windows 9x/Xp/ ), Hardware Maintenance.
• Troubleshooting, Identifying, Isolating and System hardware problems.

Environment: Red hat, Sun Solaris 2.5.1, Shell (KORN, Bourne)

Confidential

Linux Administrator

Responsibilities:

• Installation and configuration of Red hat 5.x & 6.x and Sun Solaris 8, 9 & 10.
• Configured Virtual disk RAID 0 and RAID 1.
• Package handling using YUM.
• SAS controller firmware and new BIOS updated in Super micro server for VMware ESX server installation.
• Maintained DNS & NTP servers.
• Installed and configured system networks and troubleshoot virtual machine issues.
• Applying new patches and packages on Linux.
• Configured and deployed JBoss application server.
• Documented all server list, installation, configuration steps.
• User account management and support.
• Involved in managing local disk devices.
• Worked in Datacenter Lab managed servers running Linux and Windows.
• Documented solutions for any issues that have not been discovered previously.

Environment: Red hat 5.x & 6.x, Sun Solaris 8, 9 & 10, Shell scripting, Raids, DNS & NTP servers, Jboss, LVM.