SUMMARY

• Over 8+ years of experience specialized in System Administratration, Network Administration and Application Support working on Red Hat Linux, IBM AIX, Oracle Solaris, and Windows environments.
• Experience in installation, configuration, backup, recovery, and maintenance, Support of Red hat 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, and IIS also involved in configuration of Virtual Hosts for Apache HTTP Server, IBM HTTP Server.
• Experience in Administrator well versed Red Hat Enterprise Linux with solid administrative knowledge of Apache and JBoss.
• Expertise in maintenance of cluster based 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.
• Experience on Red Hat Satellite and Spacewalk Managing and Provisioning.
• 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 Red Hat Linux include upgrading rpms, kernel, and 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 Red Hat Linux, IBM AIX and Solaris.
• Experience in configuration of NIS, NIS+, 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 player with good management, analytical, communication and interpersonal skills.

TECHNICAL SKILLS

Operating Systems: Linux (Red Hat 3.x, 4.x, 5.x, 6.x, SUSE 10, Cent OS), IBM AIX 6.1, 5L(5.1,5.2,5.3), Sun Solaris 8.0,9.0,10.0, Windows 2000/NT5.0, Windows 95/98/ME/XP,Vista,2007, VMware ESX 2.x,3.x,4.x,5.x.

Hardware: IBM RS/6000, P Series 520, 550, 570, 575, 590, 595, 630, 650, 670, M80, S80, H70 and H80, IBM ESS (Enterprise Storage Server), DS8000, IBM 3494, 3583 Automated Tape Library, Brocade, SUN Enterprise 450, Sun Fire 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.

Programming Languages: C, C++, Java, Servlets, Jsp, EJB, VB, JavaScript, HTML, Perl and Shell programming.

Web/Application Servers: Apache Server, Tomcat 4.x/5.x/6.x, JBoss 4.0.x/4.2.x, Web Sphere Application Server 4.x, 5.x, 6.x, 7.x Web Logic Server, HTML, DHTML, XML.

Applications: HACMP, Samba, Tivoli (TSM), Nagios, Veritas NetBackup, Veritas Volume Manager, LVM, EMC Powerpath.

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

RDBMS: IBM UDB2, Oracle 8.0/9i/10g/11g, MS-SQL Server 7.0/6.5 and MS-Access 97/95/2000/2002/2003/2007

PROFESSIONAL EXPERIENCE

Confidential, Atlanta, GA

Sr. System Administrator/Engineer

Responsibilities:

• Administered, maintained Red Hat 5.0, 6.0 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 Solaris and Linux servers
• Operating system, Application server & web (Apache) server installation and configuration, Advanced scripting and automation
• Experience on Dell C6100 series servers including firmware patching and Kickstart(Cobbler) creation and usage
• Patch management including security related patching and Monitor servers and applications
• KVM command line interface including Guest Creation, Management and Familiar with Spacewalk and using it to manage server configuration
• As built documentation of completed work products (e.g., server layout, Kickstart packages, routing, etc.)
• Provided production support of Apache and JBoss including installation, configuration, and management and troubleshooting.
• Experience on KVM Virtualization in RHEL 6, creating, cloning and Managing VMs
• Management and Provisioning the servers on the Spacewalk and applying patches to the Hypervisors and Guests
• General troubleshooting of operating system, hardware, and application problems and diagnostic of internally developed J2EE applications
• JBoss Open Network(JON) Configuration, Administration and Interwoven(now Autonomy) Team site and Open Deploy products
• 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
• Hardware Maintenance and System Administration of existing RS 6000 running AIX (40 systems in Network)
• Implemented day-to-day tasks in Red Hat 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 Red hat Linux and AIX.
• Installed, configured and administered AIX 4.3.3, 5.1, 6.1 & HACMP 4.4.
• 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 '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.

Environment: Red Hat Linux 5.0, 6.0, AIX 6.1,5.1,5.2,5.3,4.3, 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 3.x,4.x LPAR, DLPAR, Tomcat 3.x,4.x,5.x,6.x Apache Server 1.x,2.x, Korn, Bash.

Confidential, Peapack, NJ

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 Red Hat 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 Red Hat 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 Red hat 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.

Confidential, Detroit, MI

System Administrator

Responsibilities:

• Installation, Upgradation and configuration of Red Hat 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 Red hat 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.

Confidential - Princeton, NJ

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 Red hat 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 Configuring DHCP server and giving IP addressing dynamically.
• FTP Server configuration in Linux and done kernel tuning on Linux for play out software
• Involved in creating new users, groups and setup their home directories and appropriate access restrictions to software and directories & files using access modes.
• 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, Red hat Linux 3.x,4.x, IBM AIX 5.1, Solaris 9.0/8.0, Windows 2003/2000.

Confidential

System Administrator

Responsibilities:

• Installation, Upgradation and configuration of Red Hat Linux and Windows 2000 servers.
• Involved in creating new users, groups and setup their home directories and appropriate access restrictions to software and directories & files.
• Performance Monitoring & System tuning.
• Managed Virtual Memory and swap space on Linux Servers.
• Configuration of DNS, APACHE, MAIL, DHCP & FTP Servers in Solaris.
• Written Shell scripts to run Batch Jobs using cron and at.
• Implementing Raid levels and changing Boot PROM values according to the requirement.
• Configuring modems & printers.
• Documenting the configurations, changes made on any part of System and Network.
• Involved in Backup of data on DAT tape drive, security, performance and availability of system and network.
• Configuring Windows Machines in Work Group Environment
• Create system images with Norton ghost.

Environment: Red Hat Linux 3.x, Windows 2000/NT 4.0, Apache, IIS 4.0 and Oracle 8i.

Confidential

System Administrator

Responsibilities:

• Installation and configuration of Red Hat Linux and Windows NT servers.
• Involved in user account Administration.
• Installed and configured Patches and Packages.
• Performance Monitoring & System tuning.
• Involved in managing local disk devices.
• Responsible for configuring real time backup of web servers.
• Log file was managed for troubleshooting and resolving errors.
• Responsible for reviewing all open tickets, resolve and close any existing tickets.
• Documented solutions for any issues that have not been discovered previously
• Worked with boot and executing Boot Prom.
• Involved in documenting of Linux and Windows environment and configuration details.

Environment: Oracle 8i, Red hat Linux 3.x, Windows 2000/XP