SUMMARY:

• Over 7 years of experience specialized in System Administratration, Network Administration and Application Support working on Redhat Linux, IBM AIX, Sun Solaris, HP-UX and Windows environments.
• Experience in installation, configuration, backup, recovery, maintenance, Support of Redhat Linux, HP, Solaris and IBM AIX.
• Experience in installation and configuration of Apache HTTP Server, IBM HTTP Server ,Iplanet Web Server, Sun One Web Server, IIS and also involved in configuration of Virtual Hosts for Apache HTTP Server, IBM HTTP Server.
• Experience in maintaining a cluster of JBoss Application Servers and Monitor JBoss performance.
• Experience in applying plug-ins for WebSphere Application Server with Apache HTTP Server and IBM HTTP Server.
• Proficient in deploying applications in WAR, JAR, and EAR formats and strong working knowledge of Web Sphere Administration Portals/Process Severs.
• Worked on OS migrations, upgrade and BIOS and NIC firmware upgrades.
• Worked with Database administrators to tune kernel for Oracle installations.
• Experience with SAN and NAS configuration and LVMs.
• Configuration and administration of Fiber card Adapter's and handling of SAN SAN arrays HITACHI, EMC .
• Installation and upgradation of Packages and Patches configuration mgmt, version control, service pack. reviewing connectivity issue regarding security problem.
• Implemented day-to-day tasks in RedHat Linux include upgrading rpms, kernel, HBA driver, configure SAN Disks, Multipathing and LVM file system.
• Experience in Creation and managing user accounts, security, rights, disk space and process monitoring in Redhat Linux, IBM AIX and Solaris.
• Experience in configuration of NIS, NIS , LDAP, DNS, DHCP, NFS, LDAP, Automount, SAMBA, Sendmail, FTP, remote access, Active Directory, Security management and Security trouble shooting skills.
• Experience in writing shell scripts to automate the administrative tasks and management using cron and at.
• Experience on Webservers such as Tomcat 5.x/4.x/3.x Apache Server 2.x/1.x.
• Experience in Installation of Oracle, MS SQLServer and MYSQL.
• Experience in implementing the workload Management WLM
• Experience in VMWare ESX Server to build guest OS using cloning.
• Worked on HACMP clustering on AIX servers to provide redundancy in the environment.
• Analyze, troubleshooting, and resolve Red Hat Linux and Server HW ,Network problems in a DEV,UAT and Production Server environment.
• Provided recommendations to improve existing systems HW and software to system manager.
• Wrote system design, implementation plans, and updated documentation in share drive
• Team play er with good management, analytical, communication and interpersonal skills.

TECHNICAL SKILL SET:

PROFESSIONAL EXPERIENCE:

Confidnetial

SR. SYSTEM ADMINISTRATOR

RESPONSIBILITIES:

• Executed routine tasks in Red Hat Linux that include upgrading rpms, kernel, configuring SAN Disks, multipathing and LVM file system.
• Developed Kick start file to create the Template for server deployment, and build 500 servers as per requirement given by application team.
• Installed and maintaining physical as well as virtual RedHat Linux servers RHEL 6.X, 5.X, 4.X based on project requirements.
• Configured Ldap based authentication on the Redhat Physical and virtual servers.
• Configured Linear as well as stripped filesystem on SAN disks.
• Perform Host Based Storage migration to migrate the data from clarion to Vmax 1414 on standalone server, GPS cluster and HP service guard cluster.
• Performed Host Based Storage migration to migrate IBM XIV storage array to VPLEX storage array on AIX and Linux servers.
• Created script to find out wwf files, sudo access and write access for developers and remediated as per SOX SOD compliance
• Installed and configured Avamar and netbackup agent on the servers working with backup team.
• Worked on P2V migration, migrating from Redhat Physical server to Rethat virtual server and created Pre, Post build and Validation script to automate the P2V.
• Created, deployed, and managed complex, fine-grained access control policies to ensure only authorized privileged users are getting at your most sensitive data and applications.
• Worked on generating RHN channels for PCI patching and patched around 600 PCI servers working with offshore team.
• Implemented day-to-day tasks in RedHat Linux that include upgrading rpms, kernel, HBA driver, configuring SAN Disks, multipathing and LVM file system
• Installed encase, Tripwire, And Antivirus on the server for security purposes and installed HPOV for the server monitoring.
• Registered the server on CMDB and created the change to implement the changes on production environment.
• Installed kernel patches and updating hardware firmware to bring the stability to the hardware.
• Monitored the server's performance and status during holiday support period using HPOV tools. Provided Production support as a part of Holliday.
• Managing and supporting Linux VM where Hadoop Application is installed and hosted on top of virtualization Open stack and KVM from ubuntu OS installed on Quanta 3/5 Racks
• Installed and updated the VMware tools on the new build servers.
• Designed virtualization solution for legacy PARISC applications with HP Integrity VM
• Deployed Integrity HPVM and HP9000 Containers
• Migrated legacy applications running on PARISC hardware onto HP9000 Containers.
• Configured high availability for HPVMs using MC service guard
• Performed BIOS and FIRMWARE Upgrade on HP hardware.
• Manage systems using remote consoles like ILO for HP Hardware and HMC for IBM P-Series
• Attended team meetings, change control meetings to update installation progress, and for upcoming changes in environment as per change management policy.
• Mentored and trained other offshore members of the team in various technologies.
• Modified system configuration files such as network settings, kernel parameters, service configuration files, cron
• Downloaded and Installed httpd 2.2.22, mod ssl-2.2.22, mod jk-ap22 and java from RedHat support site as per project requirement

ENVIRONMENT: Red Hat Linux 4.9, 5.7, 5.8, 5.9, 6.3 and 6.4 AS ES, HP-DL585, HACMP 5.5,4.2.x,4.3,4.3.1,4.4 , Veritas Netbackup, Avamar, SAN Storage, 4.5.5, IBM-z/VM, Oracle 9i/10g, Samba, NT/2000 Server, Websphere, Java, Web Logic 8.1, VMware ESX 2.x, LPAR, DLPAR ,Tomcat 3.x,4.x,5.x,6.x Apache Server 1.x,2.x, Korn, Bash.

Confidnetial

SR. SYSTEM ADMINISTRATOR/ENGINEER

RESPONSIBILITIES:

• Administered, maintained Red Hat 5.0, 6.0, operating system, applications network problems and performance issues.
• Deployed latest patches for, Linux and Application servers, performed Red Hat Linux Kernel Tuning.
• Implemented day-to-day tasks in Red Hat Linux that include upgrading rpms, kernel, configuring SAN Disks, multipathing and LVM file system.
• Created users, manage user permissions, maintain User File System quota on Red Hat Linux and AIX.
• Migrated database applications from RHEL 3.X, 4.X, SUSE Linux to RHEL 6.3, 6.4 server.
• Engineered, Build and managed over 300 Linux Servers RHEL 6.3 and 6.4 for migration of various applications.
• Successfully expanded and shrunk ext3, ext4 and GPFS file systems.
• Utilized Linux LVM for flexibility with respect to file system and storage management.
• Performed Qualys security scans against newly provisioned Linux servers for auditing purposes
• Manage UNIX users from Microsoft Active Directory AD using The UNIX Authentication Broker UNAB feature in CA Access Control.
• Created, deployed, and managed complex, fine-grained access control policies to ensure only authorized privileged users are getting at your most sensitive data and applications
• Edited system configuration files such as network settings, kernel parameters, service configuration files, cron
• Assisted with daily TSM Tivoli Storage Manager operations which will include restores, backups, new client additions and missed/failed reports.
• Worked with security team to make systems PCI complaint.
• Remediated any vulnerabilities related to PCI compliance and worked on exceptions, if any.
• Deployed new operating systems based on approved standards and associated system tools configure new operating systems per design specifications .
• Updated scripts based on system changes and deploy/upgraded firmware.
• Upgraded systems and associated system tools and apply patches to systems and associated system tools and updated scripts based on system changes.
• Installed Web Logic 9i with SP5 Server and configured Domains, Admin and managed servers for Applications to be deployed.
• Provided production support of Apache and JBoss including installation, configuration, and management and troubleshooting.
• Implemented virtualization using VMware in Linux on HP-DL585 and IBM-z/VM series.
• Patched Linux kernel, memory upgrades and swaps area
• Installed and configured NSM monitoring tool to monitor servers.
• Stop / start operating system services and tools.
• Worked on Webservers JBoss , Tomcat 6.x/5.x/4.x/3.x Apache Server 2.x/1.x
• Apache/Tomcat server, mail server, MySQL database, and firewalls in both development and production
• Worked on blade logic management console to provision Red Hat enterprise Linux servers in physical and VMware environments.
• Installed and set up Blade logic software for server automation.
• Developed Korn and Bash shell-scripts to automate routine activities
• Data Warehousing and System Backup using tar, cpio for local systems and Veritas TSM Backup for enterprise wide backup and recovery
• Managed systems using remote consoles like ILO for HP Hardware and HMC for IBM P-Series
• Setup Network File Services NFS , and Network Information Services NIS in Linux and AIX systems
• Network trouble shooting using 'ndd', 'traceroute', 'netstat', 'ifconfig' and 'snoop' 'nmon' etc
• Monitored trouble ticket queue to attend user and system calls, attended team meetings, change control meetings to update installation progress, and for upcoming changes in environment
• Capacity Planning, Infrastructure design and ordering systems.
• Worked with DBAs on installation of RDBMS database, restoration and log generation.
• Mentored and trained other offshore members of the team in various technologies
• Defined standards for the engineering team to follow while designing new solutions for easier support by the operations team

ENVIRONMENT: Red Hat Linux 5.0,6.0 AS ES, AIX 6.1,4.3,5.1,5.2,5.3, HP-DL585, HACMP 5.5,4.2.x,4.3,4.3.1,4.4 , Veritas Netbackup, SAN Storage, 4.5.5, IBM-z/VM, Oracle 9i/10g, Samba, NT/2000 Server, Websphere, Web Logic 8.1, VMware ESX 2.x, LPAR, DLPAR ,Tomcat 3.x,4.x,5.x,6.x Apache Server 1.x,2.x, Korn, Bash.

Confidnetial

Sr. System Administrator/Engineer

RESPONSIBILITIES:

• Administered, maintained Red Hat 5.0, 6.0 AS, ES, troubleshooting hardware, operating system, applications network problems and performance issues
• Deployed latest patches for, Linux and Application servers, performed Red Hat Linux Kernel Tuning
• Installed and configured z Linux on IBM mainframes servers
• Install and configure DHCP, DNS BIND, MS , web Apache, IIS , mail SMTP, IMAP, POP3 , and file servers on AIX and Linux servers
• Migrated database applications from Windows 2000 Server to Linux server
• Implementation of Samba to help printing and file sharing in the mixed Environment
• Installing and setting up Oracle9i on Linux for the development team
• Installed WebLogic 9i with SP5 Server and configured Domains, Admin and managed servers for Applications to be deployed.
• Provided production support of Apache and JBoss including installation, configuration, management and troubleshooting.
• Implemented virtualization using VMware in Linux on HP-DL585 and IBM-z/VM series.
• Configured and monitored Splunk monitoring tool
• Linux kernel, memory upgrades and swaps area and performed Red hat Linux Kickstart installations
• Installed and configured Nagios monitoring tool to monitor servers
• Hardware Maintenance and System Administration of existing RS 6000 running AIX 40 systems in Network
• Implemented day-to-day tasks in RedHat Linux that include upgrading rpms, kernel, HBA driver, configuring SAN Disks, multipathing and LVM file system
• Created users, manage user permissions, maintain User File System quota on Redhat Linux and AIX.
• Installed, configured and administered AIX 4.3.3, 5.1, 6.1 HACMP 4.4.
• Upgraded AIX 4.3x to AIX 5L v5.1, 5.2, 5.3,6.1
• Performed successful installations, configuration and maintenance of Highly Available Cluster Multi Processing HACMP
• Experience in Migration of HACMP 4.3.1,4.5 to HACMP 5.1 using Node-by-Node migration without changing the cluster setup
• Worked on Webservers JBoss , Tomcat 6.x/5.x/4.x/3.x Apache Server 2.x/1.x
• Apache/Tomcat server, mail server, MySQL database, and firewalls in both development and production
• Developed Korn and Bash shell-scripts to automate routine activities
• Configured and administrated Lpar's/DLpars's.
• Data Warehousing and System Backup using tar, cpio for local systems and Veritas Netbackup for enterprise wide backup and recovery
• Manage systems using remote consoles like ILO for HP Hardware and HMC for IBM P-Series
• Setup network printers and installed client/server applications. Defined/setup network protocols, Network File Services NFS , and Network Information Services NIS in Linux and AIX systems
• Network trouble shooting using 'ndd', 'traceroute', 'netstat', 'ifconfig' and 'snoop' etc
• Provided support by 24x7 shift rotation basis and pager support
• Monitored trouble ticket queue to attend user and system calls, attended team meetings, change control meetings to update installation progress, and for upcoming changes in environment
• Updated data in inventory management package for Software and Hardware products.
• Capacity Planning, Infrastructure design and ordering systems.
• Worked with DBAs on installation of RDBMS database, restoration and log generation.

ENVIRONMENT: Red Hat Linux 5.0,6.0 AS ES, AIX 6.1,4.3,5.1,5.2,5.3, HP-DL585, HACMP 5.5,4.2.x,4.3,4.3.1,4.4 , Veritas Netbackup, SAN Storage, 4.5.5, IBM-z/VM, Oracle 9i/10g, Samba, NT/2000 Server, Websphere, Web Logic 8.1, VMware ESX 2.x, LPAR, DLPAR ,Tomcat 3.x,4.x,5.x,6.x Apache Server 1.x,2.x, Korn, Bash.

Confidnetial

Atlanta, GA System Administrator

RESPONSIBILITIES:

• Installed, upgraded and configured RHEL 5.x/4.x and IBM AIX 5.x/4.x. This included Kickstart Installation, NIM Installation and CD media.
• Installed/Configured Websphere and other Application Servers.
• Installed, configured and administration of Application Server 6.x, Network Deployment, MQ 5.x, 6.0, Jboss 4.x on Linux, AIX.
• Installed Fix packs on Application Server and added patches using Update installer.
• Installation and configuration of LVM HACMP on various AIX Servers.
• Installation and configuration of Oracle RAC 11g on RedHat Linux cluster nodes.
• Worked with Oracle Database Administrators and reviewed the required maintenance tasks.
• Installed RPM packages on Linux Servers.
• Managed builds and Deployments, Created Ant Scripts to customize EAR, WAR and JAR files and the application is deployed on WebSphere server.
• Generated HTTP plug-in config and configured with web servers by doing manual edits.
• Used SMIT and LVM commands for administration and Disk Management for IBM AIX based Servers.
• Configured and administrated LPARs.
• Management of Linux and AIX user accounts, groups, directories and file permissions.
• Configuration of DHCP Server on Linux to get the IP Addresses Dynamically.
• Configuration and administration of DNS, LDAP, NFS, NIS, NIS and Sendmail in RedHat Linux, IBM AIX and Solaris.
• Configuration and Maintenance of AutoFs in AIX and Linux.
• Configured SAMBA to get access of Linux shared resources from Windows.
• Day to day Linux and AIX hardware support, problem and change ticket implementations, composing scripts, OS builds upgrades along with day-to-day Storage UNIX Administration.
• Tested and implemented Root disk mirroring.
• Taking Backup and restoring the data using mksysb.
• Solaris Performance Monitoring and Tuning using iostat, vmstat and netstat.
• Configuration of Secured Shell SSH in both AIX and Linux servers.
• Configuration and Administration of Apache Web Server and SSL.
• Creating and managing VM's through Virtual Centre and VI client.
• Scripting for automating changes during move to speed up process.
• Responsible for Monitoring and fine tuning system and network performance for Linux systems.
• Reviewed Web Server, Application Server Performance Monitoring data using Tivoli Performance Viewer and reviewed historical Tivoli logs for root cause analysis, recurring events and involved in troubleshooting the recurring problems.
• Installed Configured EMC disk devices in AIX servers.
• System Backup using tar, cpio for local systems and Veritas Netbackup for enterprise wide backup and recovery
• Documenting each step and testing procedures before the migration.
• Take full gathering of data and ensure everything planned and documented so other team members can use it during their support hours.
• Provided 24/7 on call support on UNIX Production Servers. Responsible for maintaining UNIX security on Redhat Linux and IBM AIX.

ENVIRONMENT: HP ProLiant DL580 and DL380, IBM P Series , Websphere 5.x/6.x, Oracle 11g/10g/9i, MS SQL, Logical Volume Manager , Veritas netbackup, HACMP with EMC, SAN Multipathing MPIO, HDLM, Powerpath , VM ESX 3.x/2.x, RHEL 5.x/4.x, and Windows 2003/NT.

Confidnetial

System Administrator

RESPONSIBILITIES:

• Installation, Upgradation and configuration of RedHat Linux and IBM AIX OS IBM Blade servers and P-Series Servers using Kickstart, NIM and CD media.
• Responsible for installation, configuration, support and performance monitoring of high profile applications running on IBM WebSphere Application Servers, WebSphere Process Server and integrate with different Web Servers and configuration of web apps
• Upgraded WebSphere ND 6.0 and 6.1 with refresh packs and fix packs. Migrated all the applications on WebSphere 5.1.1.12 to 6.0.2.9 and to 6.1.0.9
• Implemented the Clustering Topology that meets High Availability and Failover requirement for performance and functionality.
• Installing and configuration and maintenance of Veritas Net Backup 6.0/5.x.
• Worked on HACMP clusters in SAN environment EMC .
• Creation of Logical volumes LVM for Red Hat Linux and IBM AIX operating systems.
• Installation and customization of Window 2003 servers.
• Configuration and Administration of NFS, NIS, NIS , LDAP, DNS, Samba and Sendmail Servers.
• Working knowledge of VMware Virtualization .
• Upgrading VMware server 2.x to 3.x.
• Installed RPM packages and LPP on Linux Servers and IBM P-Series AIX Servers.
• Oracle installation system level support to clients.
• Installed and configured the iPlanet Sun One Web servers setup firewall filtering with Squid Proxy server for web caching on Sun Solaris.
• Written shell scripts to automate the administrative tasks using cron and at in AIX and Linux.
• Validated monitored and Analysed Batch Jobs.
• Backup Schedules for Linux Servers using DLT Tape drives.
• Performance monitoring using Sar, Iostat, VMstat and MPstat on AIX servers.
• Logging events and forcing crash dumps, securing servers and troubleshooting issues.
• Troubleshooting and resolving of problems related to hardware, operating systems, third party applications and scripts.
• Initiating Backups on daily basis and monitoring the scheduled backups.
• Provided Oncall Support for Redhat Linux and IBM AIX server environments.

ENVIRONMENT: Redhad Linux AS3.0, AS4.0,VXFS, IBM P Series AIX servers, Veritas Volume Manager, Veritas Net backup, DNS, NIS, NFS, Sendmail, Oracle 10g, MYSQL, Weblogic 9.2,Websphere VMware 3.x/2.x and HACMP.

Confidnetial

UNIX ADMINISTRATOR

RESPONSIBILITIES:

• Installed, upgraded, Mirrored and configured RHEL 3.x, IBM AIX 5.1 and Sun Solaris 9.0/8.0 using Kickstart, NIM and Jumpstart Installation respectively.
• Installed, configured WebSphere Application Server 6.0, WebSphere Portal Server in a clustered environment
• Excellent knowledge of Different Installation processes. Mostly worked on Silent Installation using Response file.
• Deployed Portlets manually using Admin Console.
• Deployed Themes and Skins on to WebSphere portal server.
• Maintenance of the WebSphere servers on different UNIX platforms and setting up the development and testing and staging environment for the ongoing application development
• Participated WAS migration from WAS V5.0 to V6.0
• Disk and File system management through Solstice Disk Suite on Solaris.
• Disk Management using different raid technologies in Solaris, AIX and Linux using VERITAS Volume Manager and LVM.
• VERITAS Cluster Installation and Configuration along with Resources and Service Groups Configuration in VCS.
• Configuration and administration of DNS, LDAP, NFS, NIS and Samba in Redhat Linux, IBM AIX and Solaris.
• Network trouble shooting using ndd, traceroute, netstat, ifconfig and snoop.
• Administered and Managed Network Applications and Services like NFS with Hummingbird connectivity V7.1.
• Involved in creating new users, groups and setup their home directories and appropriate access restrictions to software and directories files using access modes.
• FTP Server configuration in Linux and done kernel tuning on Linux for play out software
• Involved in Configuring DHCP server and giving IP addressing dynamically.
• Written Shell scripts to run Batch Jobs on AIX servers.
• Provided system performance reporting on a regular basis along with keeping all software at current version levels, and maintaining a log of changes for tracking.

ENVIRONMENT: IBM RS/6000, IBM PSeries, Pentium PCs, Linux Servers ,Veritas volume manager, Sun Disk Suite, Veritas Net Backup, Sun Cluster in SAN environment, Oracle 9i, HP-UX, Redhat Linux 3.x,4.x, IBM AIX 5.1, Solaris 9.0/8.0, Windows 2003/2000.