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 7/8/9/10 and RHEL 4/5/6/7 implementation Administration, Installation & Maintenance.
• Experienced in automation piece such as Puppet and Linux Shell Scripting.
• 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 VERITAS 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.
• Worked closely with Application Development teams,highly familiar with Waterfall, SDLCand Agile software development process.Supported wide range of applications and involved in various meetings and training tier 2 teams.
• 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, for process automation of databases, applications, backup and scheduling.
• Strong technical background in Storage, Disk Management, Logical Volume Management (LVM) and logical partitioning.
• Experience in Hadoop Administration.
• Installation, configuration and maintenance of Sun and HP servers.
• 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.
• Worked on flexible hours for production, backup and on-call support for 24/7 environments.

PROFESSIONAL EXPERIENCE

Confidential, Austin, Texas

Sr. Datacenter/Linux System Administrator

Responsibilities:

• Responsible for working with the both Backend (Linux/Unix) and Frontend(monitoring of the applications and the databases)
• Working with the Non Serving Report and brings all the servers online and healthy.
• Worked actively with DevOps team to release code/deployment.
• Markup of the down databases and solving the root causes of the failure.
• Working with the different tools like Montage, Egrid, Altus, Reparo, Sec tools, Site validator for the monitoring of the applications and the databases.
• Actively working with the maintenance of the databases with the zero downtime and data loss.
• Responsible with the maintaining of the LoadBalancer and connection stacking and help to maintain the traffic between different datacenter.
• Handling with the different trace tickets and Jira tickets.
• Directly work on Production support of linux/unix servers
• Actively working with the Web Tier Traffic Redirection in order to maintain the traffic in the different applications.
• Responsible for the handling of the monitoring of the applications pools and databases using Web Server Monitor and latest Tool Montage.
• Experience with the VMware virtualization and Hyperviser and ESXI Host.
• Monitored System Activities like CPU, Memory, Disk and Swap space usage to avoid any performance issues.
• Experience in working with Hadoop servers.
• Reimaged the server which are of service and server having problem with the hardware
• Directly working with the DBA team to maintain the databases host and connection issues
• Configuration and troubleshooting - LAN and TCP/IP issues.
• Maintained proper documentation of all the activities carried out during the project.
• Responsible with setting up the cron jobs to maintain the different activities and projects
• Setting of the LVM to manage the volume group,logical volume and physical partitions.
• 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.
• Worked with the monitoring tools nagios and web server monitor
• Responsible with changing the asset states of the servers to live,build,cache,prep,sunset and decommed
• Responsible with changing the admin states of the servers to NORMAL,BRCHECK,SACHECK,DEBUG,DECOM,SMOKE,CMCHECK
• Solving problem using the extra tools like CLAW Documentation,Sherlock and CMPass
• Enabling and disabling of the Loadbalancer to maintain the traffic between the different colos

Environment: Red Hat Enterprise Linux 4.x, 5.x, CentOS 5.x,6.x, Sun Solaris 8, 9, 10, VERITAS 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, Austin TX

LINUX/UNIX System Administrator

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
• Responsible for the setting up the servers in virtual environments and complete the Vmotion task successfully.
• 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)
• 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
• 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.
• Work on production support of Linux/Unix servers.
• Configuration of LVM (Logical Volume Manager) to manage volume group, logical and physical partitions and importing new physical volumes.
• Experienced in system ROM and ILO firmware,Option Firmware Update, configure Kernel parameters.
• Maintained proper documentation of all the activities carried out during the project.

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

Confidential, Canonsburg, PA

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.
• 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.
• Hands on experience with the cloud and puppet
• 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.
• Managed and support the production Linux/Unix servers
• 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 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, VERITAS Cluster Server, Veritas Volume Manager, Oracle 11G, HP UX, IBM AIX, HP ProLiant DL 385, 585 WebLogic, Oracle RAC/ASM, MS Windows 2008 server.

Confidential, New York, NY

UNIX 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.
• 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.
• Experience with the cloud and automation tool puppet
• 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.
• Configuration and administration of Web (Apache), DHCP and FTP Servers in Linux and Solaris servers.
• Supported the backup environments running VERITAS 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, VERITAS 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, Lansingm, MI

LINUX/UNIX System Administrator

Responsibilities:

• Building Physical as well as Virtual (VMware) Servers.
• Mass Build of Linux/Solaris OS servers using kickstart /jumpstart automation application.
• Building Linux servers (web-logic application, apache, DB servers etc.) in large quantity as per EDC and Non EDC production requirement as well as App/Dev requirement.
• Worked in the Amazon webservice environment
• Installation of Oracle 11g and Sybase open-client, Apache 2.x on Linux environment.
• Verification of the built servers.
• Worked extensively with Network File System (NFS) for storage.
• Patching of RHEL5.3 servers during outage for PCI compliance purpose as well as VCS patching for Solaris servers during weekend outage.
• Kernel Upgrading from EL5.3 to 5.4 during outage in production boxes.
• Experience with web technologies and services including LAMP, JBoss, Tomcat, Drupal, and load balancers
• Decommissioning of the old servers and keeping track or decommissioned and new servers using inventory list.
• Worked on the cloud and automation tool puppet
• Monitored System Activities like CPU, Memory, Disk and Swap space usage to avoid any performance issues.
• Software package and patch administration, involving adding and removing software packages and updating patches
• Handling problems or requirements as per the ticket (Request Tracker) created.
• Configuration and administration of LDAP, NFS in Linux and also implemented Samba for sharing of resources between Linux and Windows environments.
• Maintained proper documentation of all the activities carried out during the project.

Environment: Sun Solaris 10/9/8, Linux 5/4/3, Oracle 10g, SUN Servers, SUN Fires, Linux, Jump Start, Shell Script, Autosys, Veritas Volume Manager (VVM), LDAP, EMC Storage SAN, Veritas Cluster Server (VCS), VMware servers, JBoss, WebSphere.

Confidential, Broomfield, CO

LINUX/UNIX System Administrator

Responsibilities:

• Perform hardware configuration, operating system loads, and assist with troubleshooting installation issues.
• Installations of all the required patches, drivers, third-party software.
• Installed and configured VERITAS Volume Manager and VERITAS File System as needed.
• Supported, Installed and Upgraded VERITAS NetBackup software on multiple Unix servers ( Solaris)
• Installed Sun E250, E450, Sun E3000, SunFire v440/v480/v490 with Solaris 8/9. Upgraded/Migrated Solaris 7 to Solaris 8 on Sun servers and workstations.
• Expertise in managing shared NFS files system, mounting and un-mounting NFS server, NFS client on remote machine, sharing remote file folder, starting and stopping the NFS services.
• Setup various user profiles, environment variables/security to ensure smooth operation.
• Worked with DBAs on installation of Oracle database, EBS consisting Oracle Financials
• Implemented System policies and hardware profiles, hard disk configuration for fault tolerance, disk mirroring and back up the data using BACKUP devices.
• User accounts management, developing kornshell scripts for various system performances monitoring purposes and troubleshooting.
• Administered Linux servers for several functions including managing Apace/Tomcat server, mail server, MySQL database and firewalls in both development and production
• Monitored Sun Solaris Servers running in a 24x7 data center supporting approximately 400 servers.

Environment: VERITAS NetBackup, Sun E250, E450, Sun E3000, SunFire v440/v480/v490, Solaris 8/9, SDS 4.1, 4.2(Solstice Disksuite), VERITAS volume manager 3.5, WebSphere.

Confidential, Columbus, OH

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.