SUMMARY:

• 6 years of experience specialized in Linux/Unix administration and application support on Red hat Linux, SUSE Linux, Solaris, IBM - AIX and Windows environments.
• Administration, installation, configuration, troubleshooting and performance tuning of Linux distributions such as Red Hat Enterprise Linux, SUSE Linux Enterprises, Fedora and IBM AIX, Windows Servers.
• Deployed Puppet, Puppet Dashboard, and Puppet DB for configuration management to existing infrastructure and startup,
• Strong ability to automate the manual task writing custom script using Perl, Python and shell scripting language.
• Experience with Resin/Tomcat and middleware application servers.
• Experience in virtualization software such as VMware. Installed and monitored Virtual environments with ESX4, ESX 3.x, ESXi servers and VirtualCenter2.X.
• Experience in SchedulingFull Backupof VERITAS Net backup in SAN andIncremental Backup daily, weekly and monthly.
• Hands on experience in building servers using Jumpstart and Kick-start procedure Process.
• Installed patches using Scripts onPre-Production and Production main servers.
• Installed packages, Critical server upgrade and SSL certificates on all web/app servers.
• Solid Understanding and extensive experience in installation, configuration and administration of VERITAS NetBackup5.0, 6.0, 6.5,VERITAS Storage Foundation4.0, 5.0 andStorage Foundation Custer File System.
• Understanding of numerous types ofNetworking, ComputerHardware, and Software Development Life Cycle(SDLC).
• Configured Volume groups, logical volumes and file systems on Linux
• Configuration and administration of Fiber card Adapter’s and handling Linux part of SAN (SAN arrays HITACHI, EMC).
• Maintain and use NIM Master includes TCP/IP Networking Parallel System Sport Programs (PSSP) which supports best practices in HACMP and migration of HACMP 4.3.1/4.5 to HACMP 5.1 using Node-by-Node migration without changing the cluster setup.
• Experience with enterprise class storage including SCSI, RAID and Fiber-Channel technologies Installation, Configuration and Administration of HP Data Protector & VERITAS Netback up.
• Space, Managing disk usage, File access problems, Remote file system.
• Experience in Monitoring system Access and Monitoring servers by using tools like Nagios, Solarwids, Tivoli, and Concord.
• Experience in IBM Web Sphere Administration and setting up IBM Web Sphere Application Servers in the development, testing and production environments.
• Installation of patches and packages, Installation & configuration of Jumpstart/Flash archive, Ignite and kickstart servers.
• Installation, upgrading, migrating PackagesandFile Systemsfor Redhat-Linux,Solaris andAIX.

TECHNICAL SKILLS:

Operating Systems: Linux (RedHat 3.x, 4.x, 5.x, 6.x SUSE 9, 10 and 11), Solaris 8/9/10IBM AIX 5L (5.1, 5.2, 5.3), Windows 2000/NT4.0, windows 95/98/ME/XP, hardware ESX 2.x, 3

Hardware: IBM RS/6000, pSeries 520, 550, 570, 575, 590, 595, 650, 630,670, M80, S80, H70 and H80, z/VM-9 series, IBM ESS (Enterprise Storage Server), DS8000, IBM 3494, 3583 Automated Tape Library, Brocade, SUN Enterprise 450, SunFire 4500,V880, V480,E420R,E450,E250, HP DL 380s and 580s,EMC Symmetrix, Hitachi arrays, Backup Devices, Ethernet Hubs, Routers, Repeaters, Jukebox, Printers DELL Poweredge 1650, 2850, 2950, 6400

Web/Application Servers: Websphere Application Server (WAS)3.5,4.0, Netscape/iPlanet Server, MQSeries, WebLogic, JBoss, Server, IBM HTTP Server, HTML, DHTML, XML, Java Script, JSP, Servlets, EJB

Networking: TCP/IP, NIS, NFS, DNS, DHCP, Cisco Routers/Switches, WAN, SMTP, LAN, FTP/TFTP

RDBMS: IBM UDB2, Oracle 7.x/8.0/9i, MS-SQL Server 7.0/6.5 and MS-Access 97/95

Programming Languages: Perl, shell scripting, bash, C, C++, Java, Servlets, Jsp, EJB,VB, JavaScript, and HTMLApplications: HACMP, Nagios, Samba Tivoli (TSM), Veritas, NetBackup, Veritas Volume Manager, LVM

EXPERIENCE:

Confidential, Bentonville, AR

Senior Linux/Unix System Engineer

Responsibilities:

• UNIX & LINUX administration and Server build, in the planning, design, installation, configuration, troubleshooting and performance tuning of AIX, Solaris10, Red Hat Linux, HPUX, IBM Xseries.
• Configured IBM RS/6000, p550, p520 etc. Blade Servers for production, staging and test environments.
• Migration Aix to Linux & Linux to Linux, configuration & Imaging the Vms, configuring Pacemaker Heartbeat & DRDB Cluster and Install / Replace the new hardware
• Supported Different types of Servers, Blade chassis, E chassis Stand, Alone Servers, X3650M3 & M4, DellR510 and HPILO.
• Worked on Remedy 7 System & Creating Change Control, management, WebSphere resources, J2C resources
• Experience with IBM Power7 Virtualization and XEN Virtualization, VMware. Expertise in migrations( P2P, P2V & V2V ).
• Experience in DNS, LDAP, FTP, Remote access and Utilizing monitoring and performance management tools to ensure overall reliability and stability for the Linux and AIX environments.
• Responsible for raising PMRs with IBM and collecting data using IBM Support Assistant Lite for
• Worked on WebSphere Application Server.

Environment: Unix/Solaris 10, Sun SPARC Enterprise T5120/T5220/T5240, Sun Fire E15K/E25K, VERITAS Storage Foundation 5.0, VERITAS Storage Foundation Cluster File system, VERITAS NetBackup 6.5/6.5.3, EMC Time Finder, IBM Websphere 6.0.2, SUN MC, Oracle 10g, EMC Powerpath 5.0.2, Korn Shell Scripting, LTO4 Tapes.

Confidential, Menlo Park, CA.

Senior Linux System Engineer

Responsibilities:

• Administration, Installation, Configuration, troubleshooting and Performance tuning of Linux distributions such as Red Hat Enterprise Linux, SUSE Linux Enterprises, Fedora and Solaris 8/9/10;. IBM AIX 5.2/5.3/6.1, Windows Servers.
• Installation, configuration and upgrades onRed Hat Linux 4.x, 5.x; Responsible for upgrading Critical patches and development, pre-production and production environment systems as Linux distributor server.
• Real time hands on experience on SVN Adm (Master) server, dealing with check in configuration and promote the change in Puppet server.
• Configuration and deployment of Unix-based servers with open source and commercial software. Troubleshoot server bugs and inconsistencies. Skills used: Linux, shell scripting, Perl.
• Deployed Puppet, Puppet Dashboard, and Puppet DB for configuration management to existing infrastructure.
• Re-Designed and redeployed the Nagios implementation. Nodes automatically added/removed themselves via Puppet.
• Wrote puppet manifests for deploying, configuring, and managing collected for metric collection and monitoring.
• Configuration, manage Puppet master and agent server and client as real time working experience.
• Used bash, awk, sed and Perl to automate most of the daily activities like logs monitoring, log rotation, disk spaces, purging and error detections.
• Deployed LDAP for centralized authentication
• Installed and configured domains in Sun T series. Installed Patches and Packages on Linux (Red Hat), Solaris servers and created file systems by using LVM. Involved in Upgrading Sun Solaris 8 to Solaris 10 by using Live Upgrade. Involved in Upgrading VERITAS Volume Manager from 3.5 to 4.0
• Installed patches using Scripts onPre-Production and Production and virtual servers.
• ConfiguredKickstartServers and booting the images using PXE in Red Hat Linux.
• Monitor Performanceon Solaris 8/9/10, Red Hat Enterprise Linux 4/5 and SUSE Linux Enterprise Server 9/10
• Responsible for Tracking Remedy tickets and meet the SLA's. Installed packages, patches and SSL certificates on all web servers.
• Installed and configuredVERITAS Netbackup 6.5Client onSolaris 10andRed Hat Enterprise Linux 5.
• Responsible for applying latest patches, user administration, kernel tuning parameters, file system space monitoring on Solaris systems.
• SWAP box configuration, Implementation of disaster backup and recovery.
• Administered andTroubleshootSolaris servers runningbusiness critical application & WebLogic applications.
• Installed and configuredSAMBAserver for windows and Linux connectivity.
• Installed, configured and deployed applications onWeblogic ApplicationServer 8.x, 9.x.
• InstalledWebLogic8.1 withSP5 Serverand configuredDomains, Admin and managed servers for applications to be deployed.
• Design andinstallation of Linux Cluster- local and metro clusters.
• Migrations, Installing Deployment patches, Updates on several thousands of Production Servers.
• Experience in ImplementationApache, Tomcat5.5 for the Java Servlet and Java Server Pages technologies.
• Administered the UNIX System forclusteredHP Servers withfiber attached SAN storage.
• NFS and NAS environment aware, worked with Hitachi and Oracle 7000 series from Unix Mirrors, creating ABEs for ZFS 10

Environment: Red Hat Linux AS3.0, AIX 4.3/5.1/5.2/5.3 , AS 4.0, HPUX 10.x,11.x, SLES 9, 10, Sun Fire 6800, 4800,V890, V880, V490,V480 and V210, Veritas Volume Manager, Veritas Cluster Server, IBM HACMP V4.5, Websphere ND 5.1, XD 5.1, Weblogic 8.1, Samba, Oracle 9i/10g, Veritas Netbackup 4.5.5, EMC Symmetric, CLARiiON, MYSQL, LVT, NIM, ILO, Samba, Nagios, FlexLM, NT/2000 Server, VMware ESX 3.x/4, LPAR, DLPAR, JBOSS, SAN, NAS, LVT, NIM, ILO, Lplanet, Tomcat, Apache Server 1.x,2.x, Shell Scripting.

Confidential, Bentonville, AR.

Linux/AIX System Administrator

Responsibilities:

• Installed patches using Scripts onPre-Production and Production Servers.
• Worked on Virtualization (Xen and VMware) on several hundred of servers.
• Monitored the health of Production Blade Servers, handling power outage issues, Turned off old Blades and applied patches.
• Managed IBM Blade Centre, Backed up Informix Databases and also worked with DBA and Networking teams.
• Imaging, Pre-conversion checks, Conversions, Migrations, Installing Deployment patches, Updates on several thousands of Production Servers.
• Installed packages (Conexus) and enabled vendor layers for Confidential stores.
• Applied Operating System updates, patches and configuration changes.
• Installation ofSolaris 10using Jumpstart Server.
• TroubleshootServer Cable Patching, Cluster Cable Heartbeat and Network Cables forSun, HP ProLiant and IBM Servers.
• ConfiguredSDS Mirroringon System Disks and ConfiguredIPMPonNetwork Interfaces.
• ConfiguredZones and Zones File systemforResource Sharing.
• Installation, Configuration and Administration ofVERITASStorage Foundation 5.0.
• CreatedFile Systems,Disk Groups,VolumesandIncreasing File SystemsusingVERITAS Storage Foundation 5.0 (VxVM/VxFS).
• CreatedKorn shellScriptsforWebsphere Start/Stop,Oracle DB Start/StopandFile SystemUsageAlertsin Production Environment.
• Monitored the health of Production Blade Servers, handling power outage issues, Turning off old Blades and applying patches.
• Solaris Operating Systems upgrade, package installations, updates, patches and software fixes.
• Responsible for applying latest patches, user administration, kernel tuning parameters, file system space monitoring on Solaris systems.
• Installation, Configuration and Administration ofStorage Foundation Cluster File Systemand Configured 2 node cluster with Cluster File System.
• Installed and ConfiguredVERITASNetBackup 6.5and Upgraded toVERITAS NetBackup 6.5.3.
• ConfiguredLTO4Tapes,NetBackup Policies, Backup Schedules and Full & Incremental Backupson Daily, Weekly and Monthly Basis
• Installed and ConfiguredEMC Powerpath 5.0.2andEmulex HBAs.
• ConfiguredIBM Recommended Websphere Tunable Parameterson Solaris 10.
• ConfiguredIBM Websphere App Server 6.0.2 running as non-root User.
• Upgraded System Firmware onSun SPARC Enterprise T5120/T5220/T5240 Servers.
• Troubleshoot Hardware, Network and System Performance Related Issues.
• Creating and ManagingUserandGroup Administrationand Access Privilege Setting with SUDOERS.
• ConfiguredOracle 10g Recommended Kernel Parameterson Solaris 10.
• Worked with Team toConfigure and Implement EMC Time Finder Solution (BCV)for Production Environment.
• Installation of patches and packages, Installation & configuration of Jumpstart/Flash archive, Ignite and kickstart servers.
• ConfiguredCron Jobs for RMAN Backup, Oracle Database Archive Removal and File System Usage.

Environment: Unix/Solaris 10, Sun SPARC Enterprise T5120/T5220/T5240, Sun Fire E15K/E25K, VERITAS Storage Foundation 5.0, VERITAS Storage Foundation Cluster File system, VERITAS NetBackup 6.5/6.5.3, EMC Time Finder, IBM Websphere 6.0.2, SUN MC, Oracle 10g, EMC Powerpath 5.0.2, Korn Shell Scripting, LTO4 Tapes.

Confidential, Dallas, TX

Unix/Linux Administrator

Responsibilities:

• Supported infrastructure environment comprising RHEL 3, 4, 5.3, SUN Solaris 9 and 10, HP-UX 11.X machines.
• Performed installations of OS on RHEL 5.3 and 5.2 on VMware ESX 3.5 and Proliant Blade BL and DL series servers using Kickstart.
• Responsible for applying latest patches, user administration, kernel tuning parameters, file system space monitoring on Solaris systems.
• Applied Operating System updates, patches and configuration changes.
• Installation of Solaris 10 using Jumpstart Server
• Troubleshoot Server Cable Patching, Cluster Cable Heartbeat and Network Cables for Sun, HP Proliant and IBM Servers.
• Configured SDS Mirroring on System Disks and Configured IPMP on Network Interfaces
• Installation, Configuration and Administration of VERITAS Storage Foundation 5.0.
• Created users, manage user permissions, maintain User & File system quota on AIX and Red Hat Linux servers. Installing & Configuring Red Hat Linux, IBM AIX operating systems .
• Up gradation of Operating System Environment/ kernel patches, packages, web server, and applications.
• Performing a routine backup and restore using VERITAS Backup-Exec manager/ manual of all enterprise servers.
• Performing Data Migration from AIX Linux to Red Hat Linux.
• Installing and configuration of IIS, Apache, and Samba.
• Installing, configuring and updating LDAP, DNS, DHCP, NFS, NIS and NIS+ on red Hat Linux & IBM AIX servers.
• Configuration of network using Squid to increase network performance.
• Review server loads and recommend load balancing for optimization.
• Configuring IP connectivity, routing, checkpoint firewall and network interfaces. Also maintaining network connectivity of servers.
• Performing capacity planning and performance tuning swap space, paging, share memory file systems, disk space, Daemons, web server processesm& SSH.
• Interact with Third Party Vendors for support and escalation of cases.
• Data Warehousing and System Backup using tar, cpio for local systems and VERITAS Netback up for enterprise wide backup and recovery and to centrally manage storage resources through a single console.
• Setup KICKSTART & NIM server and install clients.
• Configured volume groups and logical volumes, extended logical volumes for file system growth needs using Logical Volume Manager (LVM) commands.
• Maintained availability, increased capacity & performance of production machines by upgrading their hardware (disks, CPU, memory, IO board, power cooling unit, mother board etc) & firmware.
• Experienced in creating Logical Partitions (LPAR) on Tivoli Storage Manager (TSM), EMC Environment: AIX 5.1, 5.2, 5.3, RHEL3.x/4.x, Apache1.3, Web sphere, Oracle 8i, Work Load Manager, HACMP, VERITAS NetBackup, Dell Power Vault, Storage TEK, L700.

Confidential

Linux/Aix Administrator

Responsibilities:

• Participated in team activities as a member of the Linux / UNIX System Administration.
• Set up and administered user and groups accounts, setting permissions for users.
• Built and installed multiple Linux machines.
• System and Application troubleshooting and other related issues.
• Provided management of system process in areas like boot process, startup and system shutdown.
• Installed, configured, maintained and administered Linux / UNIX operating systems and components. Diagnosed and resolved problems associated with DNS, DHCP, VPN, NFS, and Apache.
• Disk management and implementation
• Installed, upgraded and patched Red Hat Linux, Windows 2000, Window XP, and Solaris, Monitoring the health and stability of Linux and Windows System environments
• Run-of-business activities included DNS, mail, Apache, and Tomcat configuration management, RSA SecurID (ACE/Server) management,
• OS upgrades, and security fix deployment across installed base for Sony’s GISS compliance rotated 24/7 on-call support
• Analyzed network traffic using sniffer tools, optimized network performance and balanced network load bandwidth
• Diagnosed and resolved problems associated with DNS, DHCP, VPN, NFS, and Apache
• Supplied technical support for more than 200 internal and external network users, which helped keeping good relationship with customers
• Planned and executed packages and updates installations necessary for optimal system performance.
• Diagnosed and resolved problems associated with DNS, DHCP, VPN, NFS, and Apache. Designed File System Layouts to improve Performance and Reliability of Oracle databases using VERITAS volume manager.

Environment: Linux, HP-UX, Sun Enterprise Servers E5500/E4500 and E3500, HP9000, Dell Servers.