SUMMARY

• Over 8 years of strong experience as a LINUX/UNIX System Administrator and Production Support of various applications on SUN Solaris, Red Hat Linux and Windows environment.
• Experience on Solaris 10/9/8/7 and RHEL 4/5/6/7 implementation Administration, Installation & Maintenance.
• Upgrade and Maintain Firmware on IBM p5/p6 Servers, HMC, Sun Sparc Servers.
• Web Application Server Tomcat, Apache, IBM WebSphere, WebLogic 8.0, 8.1., RHEV
• Integration of various network related services like NFS,DNS, FPT and Samba Server.
• Installation and configuration of Apache/Web logic on Solaris, Linux and Windows.
• Enterprise Server administration of Sun Solaris and Linux Installations including Sun Fire series.
• Expertise in the setup and administration of Confidential Volume Manager and Clusters.
• Configured Kickstart servers for complete hands - free installation of workstations, with custom profiles, begin/finish scripts and custom package suites/clusters.
• Troubleshooting skills with network protocols such as DNS, TCP/IP, SMTP & SNMP.
• Hands on experience with ticketing tools such as Remedy, BMC service desk express and Quick base.
• Hands on experience of IT automation software tools like PUPPET.
• Administration of networking devices such as Routers and switches.
• Extensive implementation and troubleshooting experience under Client Server Systems.
• Experience in writing basic Shell scripts using ksh, bash, perl,python for process automation of databases, applications, backup and scheduling.
• Strong technical background in Storage, Disk Management, Logical Volume Management (LVM) and logical partitioning.
• Expertise in using build tools like MAVEN and ANT for the building of deployable artifacts such as war & ear from source code.
• Experience in Hadoop Admin
• Installation, configuration and maintenance of Sun and HP servers.
• Management of User accounts, System security, change management and performance tuning.
• Installation of SSL certificates Linux servers.
• Monitoring and administering Sun-Solaris servers and Red hat Linux servers.
• Installation of Patches, Hardware, software's and Firmware upgrades.
• Ability to handle multiple tasks and work independently as well as a team member.
• Provided on-call support and worked with Vendors on system issues and bugs for its resolution.
• Proficient in System administration, System planning, co-ordination, commissioning, setting up security hierarchy and capacity planning.
• Good understanding of VCE V Block concepts. Sun/Oracle ALOM/iLOM, HP iLO
• Worked on flexible hours for production, backup and on-call support for 24/7 environments.

TECHNICAL SKILLS

Operating Systems: Linux (RedHat 5/6), Sun Solaris (10/9/8), IBM AIX 5.x, Windows 2003/2008 Sever, VMWARE ESX/ESXi

Hardware: Dell PowerEdge Series, HP DL Series servers, Sun Fire Servers - E25k, E15k, 12k, E280R, E480R, V240,420R, V440, V480, V490, V880,V890 and 4800 Data Centre Servers - E250, E450, E3000 and E3500 Tape Libraries - Sun StorEdge L20/L40/L60, L180 and Storagetek's 9840

A/B/C Fibrechannel: Arrays - Sun StorEdge 3130, A1000/D1000, EMC DMX 800 and 1000

Languages: Shell scripting, ksh, bash, Python, Perl, C, C++

Networking: TCP/IP, DNS, NFS, NIS, SSH, DHCP, Cisco Routers / Switches and LAN

Tools: Sun Cluster 3.2, Confidential NetBackup 6.0, Confidential Storage Foundation Suite, Solaris Volume Manager, Jenkins, maven, sendmail.

Web Technologies: Lotus Domino 5 / 6, Apache 2.0, WebLogic 8.1/10, WebSphere, JBoss, IPlanet, IIS, HIS.

PROFESSIONAL EXPERIENCE

Confidential, Bentonville AR

Sr. Linux/Vmware /DevOps Engineer

Responsibilities:

• Building and supporting environments consisting Testing, Contingency, Production and Disaster Recovery servers.
• Installed and configured 300+ RHEL 7, SUSE 11 Linux for new build environment. Responsible for building the 250+ physical servers in HP PROLIANT ILO 4 for Hadoop environment
• Configuration of network equipment for newly builds servers.
• Virtual Machine administration on hypervisor OVM.
• Database Administration on Various platforms like Linux and Windows server.
• Implementing a Continuous Delivery framework using Jenkins, CHEF, Maven in Linux environment
• Server Hardware support like Dell Power Edge, Hp Proliant.
• AWS server provisioning using Chef Recipes
• Maintained Linux management tools (Satellite, SUSE Manager, Spacewalk, Foreman, etc).
• Adding Disks and creating Slices and File system Administration.
• Disk replacement (Root disk / Data disk).
• Configuring and monitoring Disk mirroring, striping using LVM.
• Provided support on Linux provisioning (kickstart, autoyast, Vmware templating).
• Implemented puppet, Nagios, Splunk, Chef and DevOps tools
• Supporting infrastructure environment comprising of RHEL and Suse.
• Experience with VMware Virtualization using ESX hypervisor of VSphere.
• Installation, Configuration and up gradation of Red Hat Linux 4, 5.X,6.X to 7
• Resolving different Users request.
• NFS configuration & administration
• Monitoring & troubleshooting with performance related issues
• Creation, Installation and administration of Red Hat Virtual machines in VMware Environment.
• Creation of SAN File System on Red Hat Linux using multipath configuration.
• Rebuilding of kernel in RHEL using mkinitrd.
• Worked on projects like PCI, SR to ensure all goes well and provided support till servers go in to production environment.
• Configuration of Monitoring tools in Linux and Suse servers in Satellite, SUSE Manager, Spacewalk, Foreman.
• Troubleshooting Network, memory, CPU, swap and File system issues, TCP/IP, NFS, DNS, SMTP in Linux and Solaris servers.
• Implementing a Continuous Delivery framework using Jenkins, CHEF, Maven in Linux environment
• Performance tuning of Virtual Memory, CPU, system usage in Linux and Solaris servers.
• Supported class monitoring and management tools such as Open NMS, Tivoli and VCO.
• Performance Monitoring and Performance Tuning using Top, prstat, SAR, vmstat, ps, iostat.
• Building of Oracle RAC (Oracle Real Application Clusters) environment.
• Performed Disaster Recovery in RHEL servers which consists of LVM based FS and Red Hat Clustering.
• Installation, configuration and administration of Jboss, Apache, Weblogic, Tomcat and Websphere.
• Creation, initialization, addition of Oracle ASM and FSR devices in multipath environment
• Creation of Jumpstart and Kickstart configuration for the automatic provision of servers .
• Installation of third party tools using packages.

Environment: Environment: Red Hat Linux 5,6,7, HP & Dell Servers, Oracle/DB2, VMWare ESX 4.x, Autosys, Jenkins, VMware VSphere, ESX, BMC BladeLogic.

Confidential, MO

Senior Linux Administrator/(Chef and Puppet) Developer

Responsibilities:

• Responsible for building the servers in physical and virtual platform.
• Responsible for building the hp-ux unix and linux build servers for the HPI and HPQ
• Setup and maintained the TCP/IP network, configured the systems for the TCP/IP Networking with the existing LAN in RedHat/UNIX hosts
• Build the unix server like Service Guard,HP-UX Site-2-Site Service Guard Build,HP-UX Oracle Rac Metro Build,Oracle RAC,HP-UX SAP Standalone,HP-UX SAP Metro,HP-UX SAP Local,HP-UX Standalone,HP-UX Local ServiceGuard for CFS Build,HP-UX IVM Guest Build,
• Experience in Vmware Virtualization and ESXI Host.
• Used Jenkins& Puppet to perform automated CI Builds and Deployments.
• Responsible for the setting up the servers in virtual environments and complete the Vmotion task successfully.
• Used Mavenas a build tools on java projects for the development of build artifacts on the source code.
• Responsible for the handling of the Unix commonly used process tools like Callsub,Callmbs,Volconfig,Pulldb
• Worked in the Virtual connect Team- responsible for enclosure builds and VC profiles
• Expanded the servers in UX Team-ESX,HP-UX (IVM), Linux platform Builds,HA (high-availability).
• Implemented automations tools Chef, Puppet, Splunk, DevOps
• Migrated to Red hat satellite server 6 version.
• Worked exclusively on VMware virtual environment.
• Hands on experience in San Invisible,Networking,missing files troubleshooting
• Experienced on Integrity Virtual Machines Host Farms(clustered with serviceGuard),Non-cluster,Local,Site to Site-Metrocluster
• Installation in the patches,Hardware and Software servers.
• Implement Oracle VM Agent in the Linux control domain to communicate with the Oracle VM Manager.
• Help QA team to setup Oracle VM testing plan.
• Expertise in scripting for automation, and monitoring using Shell, PHP, Python & Perl scripts.
• Handling problems or requirements as per the ticket (Request Tracker) created
• User Account Management,Filesystem Management,LDAP
• Monitored System Activities like CPU, Memory, Disk and Swap space usage to avoid any performance issues.
• Configuration of LVM (Logical Volume Manager) to manage volume group, logical and physical partitions and importing new physical volumes.
• Configured and maintained brocade Fibre channel over ethernet (FCoE) switches
• Experienced in system ROM and ILO firmware,Option Firmware Update, configure Kernel parameters.
• Worked onRepository Manager Nexusfor deploying artifacts
• Used JIRA as ticketing tool.
• Maintained proper documentation of all the activities carried out during the project.

Environment: s: Red Hat Enterprise Linux 5.x,6.x, Confidential Cluster Server, Confidential Volume Manager, HP UX, HP ProLiant DL 385, 585 WebLogic, Oracle RAC/ASM, MS Windows 2010 server

Confidential, WASHINGTON DC

Linux System Administrator

Responsibilities:

• Designed, supported, and maintained Oracle Real Application Clusters supporting business critical applications on HP ProLiant BL465/BL685 & Integrity Itanium2 platforms on RHEL 4 & 5.
• Expanded the environment from 128 to over 280 systems over the course of 12 months.
• Setup and maintained NFS and TCP/IP network, configured the systems for TCP/IP Networking with the existing LAN, setting up SSH and SCP features between SUN systems and other Red Hat/UNIX hosts.
• Responsible for the handling of the automation tool Puppet
• Maintained network and data security, maintained security compliance policies on the OS for SOX and internal audits.
• Implemented Maven builds to automate JAR and WAR.
• Experience with enterprise SSO technologies
• Configuration and administration of LDAP, NFS in Linux and also implemented Samba for sharing of resources between Linux and Windows environments.
• Experience in Vmware Virtualization and cloud computing
• Installed and configured VMware ESX server instances for virtual server setup and deployment. Responsible for creating VMware virtual guests running Solaris, Linux, Windows.
• Integrated the Linux environment with Active Directory providing a Single Sign On (SSO) solution.
• Using rsyslog & mysql, deployed a custom syslog reporting solution for system alerts and notifications.
• Deployed RedHat Satellite Server with custom repositories to provide a stable management solution for the Linux environment.
• Experience with Jumpstart & Kickstart Installations on Solaris & Linux
• Experience with NetIQ Access Manager
• Installed, maintained and fine-tuned the Apache-Tomcat server and WebSphere Application Server in Linux Platform
• Created Bash/Korn shell scripts to monitor system resources and system maintenance.
• Wrote Perl and Python scripts to generate statistics and monitor processes.
• Deployed Active/Active MySQL clusters using RedHat Cluster Suite for supporting internal applications built on the LAMP stack.
• Automated system management tasks like user account creation, file system size monitoring, monitor system resources and system maintenance using Shell, and Perl scripts.
• Installed, configured & upgraded WebSphere and provided extensive support in code deploy, change management and application level troubleshooting for the Dev, Test, Pre-Prod & Production environment. Deployed applications (EAR/WAR) files on multiple Servers/Clusters and maintained Load balancing.
• Worked on VCE V Block concepts.
• Worked with DBAs on installation of Oracle database, RDBMS database, restoration and log generation. Perform security patching of Linux servers

Environment: Red Hat Enterprise Linux 4.x,5.x, Sun Solaris 8,9,10, Confidential Cluster Server, Confidential Volume Manager, Oracle 11G, HP UX, IBM AIX, HP ProLiant DL 385, 585 WebLogic, Oracle RAC/ASM, MS Windows 2008 server.

Confidential, RESTON, VA

Linux SYSTEM ADMINISTRATOR

Responsibilities:

• Patching of RHEL5 and Solaris 8, 9, 10 servers for EMC Powerpath Upgrade for VMAX migration.
• Worked in the ARP protocol
• Experience with SAML.HTP fed.web application proxing
• Configuration of LVM (Logical Volume Manager) to manage volume group, logical and physical partitions and importing new physical volumes.
• Experience with Active Directory and federation/authentication technologies
• Documented the standard procedure for installation and deployment of VMAX Migration and logical volume manager.
• Worked on ANT and MAVEN Scripts to automate the build process.
• Installation, configuration, support and security implementation on following services: DHCP, SSH, SCP.
• Configuration and administration of NFS and Samba in Linux and Solaris.
• Installation in the patches,Hardware and Software servers
• Maintained and monitored all of company\'s servers' operating system and application patch level, disk space and memory usage, user activities on day-to-day basis.
• User administration on Sun Solaris and RHEL systems, HP-UX machines, management & archiving.
• Installations of HP Open view, monitoring tool, in more than 300 servers.
• Attended calls related to customer queries and complaints, offered solutions to them.
• Worked with monitoring tools such as Nagios and HP Openview.
• Creation of VMs, cloning and migrations of the VMs on VMware vSphere 4.0.
• Worked with DBA team for database performance issues, network related issue on Linux / Unix Servers and with vendors for hardware related issues.
• Expanded file system using Solaris Volume Manager (SVM) in the fly in Solaris boxes.
• Managed and upgraded UNIX's server services such as Bind DNS.
• Development of Perl and Shell scripts for automation of daily tasks.
• Configuration and administration of Web (Apache), DHCP and FTP Servers in Linux and Solaris servers.
• Supported the backup environments running Confidential Net Backup 6.5.
• Responsible for setting cron jobs on the servers.
• Decommissioning of the old servers and keeping track or decommissioned and new servers using inventory list.
• Handling problems or requirements as per the ticket (Request Tracker) created.
• Participated in on-call rotation to provide 24X7 technical supports.
• Configuration and troubleshooting - LAN and TCP/IP issues.

Environment: Red Hat Enterprise Linux 4.x, 5.x, Sun Solaris 8, 9, 10, Confidential Volume Manager, Oracle 11G, Samba, Oracle RAC/ASM,EMC Power path, DELL PowerEdge 6650, HP Proliant DL 385, 585, 580, Sun Fire v440, SUN BLADE X6250, X6270.

Confidential

SYSTEM ADMINISTRATOR

Responsibilities:

• Responsible for supporting Linux servers for production, development and testing.
• Installing, Configuring and Maintaining the DHCP, DNS, NFS send mail server.
• User Account Management, Group Account Management, configuring dumb terminals, adding modems, formatting and partitioning disks, manipulating swap, local and remote printer management, taking and restoring backup, scheduling jobs.
• Performance tuning and preventive maintenance. Performed daily backup.
• Performed addition of Swap space at run time. Performed installation and configuration of LDAP.
• Resolving TCP/IP network access problems for the clients.
• Implementing Remote System Monitoring with Sun Microsystems.
• Performed administrative tasks such as system startup/shutdown, backups, Printing, Documentation, User Management, Security, Network management, configuration of dumb terminals.
• Troubleshooting backup and restore problems and performed day-to-day trouble shooting for the end users on Solaris and Linux based servers.
• Develop, Maintain, update various scripts for services (start, stop, restart, recycle, cron jobs) UNIX based shell, Perl.
• Configured and maintained NFS servers on Linux.
• Setting up Oracle 8 server in Linux/Unix environment.

Environment: Linux (RedHat Enterprise, CentOS), Windows 2003, HP, IBM, Solaris, Oracle 8, SSH Gate, Cisco routers/switches, Dell 6400, 1250, Sun E450, E250.