SUMMARY:

• Over 6 years of IT industry experience as a System Administrator and Production Support of various applications on Red Hat Enterprise Linux, Cent OS environment, Oracle Enterprise Linux, IBM AIX, Windows Server 2012
• Having experience in Linux/Unix/AIX System Administration and Support of various critical business applications on RHEL 4.x, 5.x, 6.x, 7 including the responsibilities of 24x7 System support
• Experienced in installation, configuration, administration, troubleshooting, tuning, security, backup, recovery and upgrades of Linux (Red Hat, Centos and SuSE), HP UX, Oracle Enterprise Linux, IBM AIX 5.1, 5.2, 5.3, 6.1 & 7.1 OS.
• Experience in creating and managing LPARs on different IBM servers like p550, p570, p590, p595, p630,p650, p670, p690 and p770.
• Experienced in configuring SSH, DNS, NFS, send mail, FTP, NTP, HTTP.
• Experienced with Virtualization technologies like installing, configuring, and troubleshooting VMware ESXifor Linux servers.
• Extensive knowledge and experience in using Java Virtual Machine JVM
• Installed and configured VMware ESX server 3.5, 4.0, 5.0 and 5.5 on Dell power edge servers, HP DL 380Gen - 8&9 servers.
• Experienced in guest OS installation, setting up of VM priorities, Cloning and Snapshots.
• Creation, management, administration and maintenance of virtual servers and clients.
• Having knowledge on different types of SAN and NAS storage and Endurance experience on different storageTSM, EMC, HITACHI and SVC.
• Worked on shell scripts for CPU usage, memory consumption and number of I/O to collect performance statsand troubleshoot issues if needed on Red Hat Linux,, Oracle Enterprise Linux, HP UX and IBM AIX
• Experience in configuring and planning of LPAR's and DLPAR's.
• Experience in IBM HACMP, POWER HA Cluster & working with the application team to ensure theapplications start/stop without any failure in case of event failures.
• Proficiency in developing shell scripts from scratch as well as editing existing scripts as per the requirement.
• Configuring virtual machines in AWS.
• Configured and Administration of VERITAS Cluster
• Extensive knowledge on various Linux/Unix File systems and Experienced with the installation, configurationand volume/File system management using Veritas Volume Manager (VxVM), Logical Volume Manager (LVM) on LINUX.
• Expertise in file system concepts like LVM, SVM, creating new file systems, increasing and decreasing filesystems, mounting file systems, un mounting file systems and troubleshooting Disk space issues
• Installed Configured and maintained NIM Server, created Spot, LPP source and resource on NIM Server,done many migration, upgrades and installed software using NIM. Alt Disk Clone for rootvg.
• Upgraded firmware on Linux server, done critical console data backup and also save updated data.
• Extensive experience in Virtualization, disaster recovery, performance tuning and troubleshooting.
• Responsible for implementing and supporting assorted vendor Storage & Backup systems.
• Configure DNS and Write Bash Shell program utilities to automate backup
• Installation and configuration of Oracle 11g, 12c on R2 RAC clusters on Linux environment
• Supported Oracle DBA with RAC node configuration and installing Oracle Binaries.
• Assisting SAP Basis team with Linux and database troubleshooting.

TECHNICAL SKILLS:

Operating Systems: Red Hat Enterprise Linux, Fedora, SuSE, Debian, Ubuntu, CentOS, HP UX, IBM AIX, VMware ESX 4.x,5.x,, Oracle Enterprise Linux, Oracle virtual machines

Hardware: DELL (PowerEdge), HP (ProLiant, G5, G6, G7 & G8), IBM POWER SERVERS

Tools: WebLogic 10.x/9.x/8.x, WebSphere, Apache HTTP/Tomcat/JBoss, VERITAS Volume Manager, VERITAS Net backup, Cluster server 3.5 &4.1, Sun Cluster 2.x & 3.x, Nagios, Web Methods, JVM, Java, Visual Basic, C+, sunLDAP, CAS, Shibboleth, OVD, OUD, CAS SQL, Splunk, Genesys

Languages: Shell scripting, Perl,Networking TCP/IP, NIS, NFS, DNS, DHCP, LAN, FTP/TFTP, SSH, SFTP, ARP

Storage: LVM, SCSI, SATA, Ext 2, Ext 3, Ext 4 and NAS (NFS, SAMBA, RAID 0/1/5) and SAN (iSCSI, Fibre Channel) NetApp filers, HDLM (Hitachi), Power Path (EMC), DMP (VERITAS), MPIO.

Database: Oracle DB2, SQL Server, MYSQL.

Cluster: Veritas Cluster Server, MC/Service Guard, Sun Cluster, Rac, HCAMP CLUSTER Mail Servers SMTP, POP, IMAP, qmail, Sendmail, Postfix.

PROFESSIONAL EXPERIENCE:

System Administrator (Linux/AIX)

Confidential, Delaware

Responsibilities:

• Deployed RHEL 6 and RHEL 7 Linux VMs using ORACLE VMware vSphere client.
• Installation, up gradation and migration OS from AIX 5.3/6.1 to AIX 7.1 on IBM Power5/power6/power7 basedhardware.
• Installation & configuring of Power HA 6.1.
• Provided support and monitored the performance of Linux Environment.
• Experience in using LDAP
• Installation/Upgrade of packages and check package dependencies on Linux Servers using RPM.
• Worked in solving SMC tickets issued on day to day activities and problems related to development, testand production support servers.
• Installed and configured of SAMBA, squid, FTP Server, SMTP Server, RAID and LVM on RHEL.
• Administering, installing, configuring and maintaining Linux.
• Performing Linux systems administration on production and development servers. Red Hat Linux,, OracleEnterprise Linux, UNIX scripting, understanding of hardware.
• Supporting Database environments (Oracle). Provisioning and building Linux servers both Physical andVirtual using VMware
• Provisioning and support of Production, QA and Developers environment.
• Support in installation of Genesys Voice platform.
• Installed and Configured 2 nodes in HACMP cluster.
• Performed Migration from HACMP 5.2 to HACMP 5.4.1.4
• Automated Linux Patching via Satellite.
• Automated System registration process, with RHN Satellite Server.
• Worked with the Release team to build and support various environments.
• Database Administration, design, maintenance and production support
• VMware Infrastructure 3.x/vSphere Installation & Configuration; Oracle virtual Machine, VMware vSphereclient, Virtual vCenter Server; Virtual Server creation, allocation & server configuration
• Planning and Designing VMware (VMware Virtual Centre) Environment.
• Creating Virtual Machines in VMware (RHEL, SUN ENTERPRISE LINUX IBM AIX, Centos, SuSE, WindowsXP,7)
• Administration of Web based Internet/Intranet Client/Server multi-tire distributed applications; InstallingPatches & packages on Unix/Linux Servers.
• Performance Tuning, Query Optimization, Client/Server Connectivity, and Database Consistency Checksusing different Utilities.
• Installation and Administration of JBOSS AS 4.x on Red hat Linux.
• NIS, NFS, AUTOFS, NTP Configuration and Administration.
• Creation and management of JVM
• Collecting and analysing logs using Splunk
• Shell scripting, Perl for Linux/Unix Systems Administration and related tasks. Storage / Servers daily checks,performance tuning, performance monitoring and health check-up; Planning, preparation and implementing upgrades.
• Installation, Configuration and maintenance of Hosted VMware products. Sendmail/Postfix MTA setup andadministration.
• Designed Security (IPTables and SElinux policies) on paas SOE.

Environment: Red hat Linux 6,7 Splunk Logical Volume Manager, Genesys, JBOSS AS 4.x, Oracle 11g,12c, VMware 5.1, AWS, Virtual box, Veritas Volume Manager, HCLAMP Cluster

System Administrator

Confidential

Responsibilities:

• Involved in installation, configuration, administration, troubleshooting, tuning, security, backup, recovery andupgrades of Linux (Red Hat & SuSE) and upgrading AIX 5.3/6.1 to AIX 7.1 on IBM
• Installed Nagios from scratch and setup agents on all the clients.
• Configured monitoring on Nagios for various middleware services, created host groups, service groups,installed Nagios plugins to monitor specific applications. • Worked in Puppet Master and slave architecture environments.
• Configures and supports Web & Application server environments for production, A/A model and D/Rimplementations.
• VMware - ESX Installation, VCenter integration & guest creation and also created virtual machines on Oraclevirtual Machine.
• VMware Virtualization design and management, Managing Red Hat Satellite.
• Environment has 20 servers (12 RHEL servers), 10 Oracle enterprise Linux servers and over 180 clientcomputers
• Working on Security remediation, critical assessments, disaster recovery and Virtualization, Software / OSupdates and patching.
• Setting up all kinds of mail clients, Creating and maintaining mail accounts in mail server.
• Network environment has 18 servers and over 180 client computers
• Administering 4 routers. Performed Design, Implementation and support on Linux servers.
• Administered Learning Management System.
• Administered Nagios Network Monitoring tool. Administering centralized authentication through FedoraServer.
• Administering web servers by Web Host Manager.
• Collecting and analyzing logs using Splunk
• Support in installation and maintainance of Genesys Voice platform.
• Administered Document Management System (Knowledge tree).
• Incident and problem resolution. Maintaining up to date system documentation.
• Performing backups for web servers and backup shell scripting.
• Shell Scripting in various applications and automations.
• Support for databases MySQL, Oracle 11g
• Provide on-call / after-hours support, with remote access to network and servers.
• Documenting all procedures in an illustratable manner while troubleshooting and installing.
• Designed and Implemented Linux Gateway security system. (Linux Router).
• Installation and setup of Fedora Directory Server for ADS synchronization of 50+ AD users to Red hat clients.
• Implemented Web Content Management System (Joomla).

Environment: Red hat Linux 5,6, SuSE, VMware, Logical Volume Manager, Joomla, Knowledge tree, JBOSS AS 4.x, Oracle 10g,11g, Nagios, VMware 5.1, AWS, Virtual box, Veritas Volume Manager, IBM P Series, Splunk, AIX 6.x/7.x

Linux/UNIX System Administrator

Confidential, Sacramento

Responsibilities:

• Performing Linux and UNIX systems administration on production and development servers. Red Hat Linuxscripting, understanding of hardware.
• Extensively working in an Enterprise level Linux environment Red Hat Linux, Oracle enterprise Linux and HPUNIX Experience using Clustering Technologies (VCS, ASM) & Application Servers (WebSphere)
• Supporting Database environments (Oracle). Provisioning and building Linux servers both Physical and Virtual using VMware, Oracle virtual Machine.
• Provisioning and support of Production, QA and Developers environment.
• Migrating from AIX 5.3/6.1 to AIX 7.1 on IBM
• Deployment and Build of various environments.
• Automated Linux Patching via Satellite.
• Automated System registration process, with RHN Satellite Server.
• Worked with the Release team to build and support various environments.
• Database Administration, design, maintenance and production support
• VMware Infrastructure 3.x/vSphere Installation & Configuration; VMware vSphere client, Virtual vCenter
• Server; Virtual Server creation, allocation & server configuration
• Planning and Designing VMware (VMware Virtual Centre) Environment.
• Administration of Web based Internet/Intranet Client/Server multi-tire distributed applications; InstallingPatches & packages on Unix/Linux Servers.
• Performance Tuning, Query Optimization, Client/Server Connectivity, and Database Consistency Checksusing different Utilities.
• Installation and Administration of JBOSS AS 4.x on Red Hat Linux.
• NIS, NFS, AUTOFS, NTP Configuration and Administration.
• Shell scripting, Perl for Linux/Unix Systems Administration and related tasks. Storage / Servers daily checks,performance tuning, performance monitoring and health check-up, Planning, preparation and implementing upgrades.
• Installation, Configuration and maintenance of Hosted VMware products. Sendmail/Postfix MTA setup andadministration.
• Provided performance turning solutions for both virtual and physical RHEL systems.
• Designed Security (IPTables and SElinux policies) on paas SOE.

System Administrator

Confidential, Little Rock, AR

Responsibilities:

• Managed 500 Linux servers with 1 PB of Storage and 100 users.
• Deployed VM on ESX host and Oracle Linux VM's on ORACLE EXALOGIC.
• Supported 100 Users on Linux, Centos and Unix Operating systems.
• Installation of Red Hat EL 4.x, 5.x using Kickstart and PXE on HP DL380 G3.
• Upgrade firmware RHEL 5 to RHEL 6
• Configured satellite server for patching servers.
• Configured Processes and Process management using Crontab
• Created User accounts management and authentication.
• Created RHEL Webservers, mail servers, database servers VM in ESX Host 5.5.
• Created mounting, unmounting and fsck File Systems.
• Created Apache Web Server, FTP Server and NFS Server Configuration
• Install Tomcat7 to support Java developers
• Installing and upgrading the kernel, checking and understanding kernel version
• Performed zoning on fiber channel switches and allocated storage to Linux servers from EMC VNX.
• Configured virtual network in VMware and Linux servers.
• Knowledge about Advance Linux Network and SElinux, Network Security enforcement.
• Installed Apache web server installation and configuration.
• Jumpstart and Flash Installation of RHEL 5.6, 6.x on ESX 5.0, 5.5 for testing, production and disaster recoverysetup as required.
• Performed access control and package management using rpm and yum
• Performed Backups using VMWARE VDP Backups of Linux VM's.
• Patch and Package administration to keep the servers updated with the patches and that implementingpackages developed for deployment
• Activate Monitoring on a regular basis to ensure systems loads and performance are not being affected byprocesses or odd user activity.
• Experience with remedy ticketing system.
• Controlling the System Logging services, and examining system log files
• Creation and administration of software packages and checking the integrity of installed packages Usingnative rpm on Red Hat servers.
• Monitoring System Performance of Virtual memory, Managing Swap Space, Disk utilization and CPUutilization.
• Day-to-day functional administration tasks, as well as application-specific technical support.
• Server decommissioning and deployment activities

Environment: RHEL 5,6, IBM AIX, HP UX, SQL Plus, LVM, VERITAS NetBackup 6.5, Oracle 10g and Power path, Apache Serves, Tomcat, Yum, AD, Dell PowerEdge 1850, 2850, HP DL380 G3, HP DL570 G8, IBM

Confidential

Linux/AIX Administrator

Responsibilities:

• Setup a couple of hundred VM's running Centos to be used for web, database, application, mail, ftp andmonitoring.
• Installed and configured Red Hat Linux Kickstart.
• Configuration of Hardware and Software RAID on RHEL Servers.
• Installation of Oracle Patches and Troubleshooting, Creating and modifying application related objects,Creating Profiles, Users, Roles and maintaining system security.
• Performed Troubleshooting NFS, NIS, Samba, DNS, DHCP, LDAP, MySQL and network problems.
• Setup and configured KVM on Red hat and Xenon SuSE
• Configured and Administration of VERITAS Cluster.
• Day to day maintenance of VERITAS Volume Manager.
• Responsible to handle the Server Administration and Asterisk Server Installation and Configuration in Linux.
• Worked as part of Testing Team in Application testing using Manual methods and Scripts.
• Installed and implemented NAS with RAID 1 and RAID 5 configurations.
• Monitored load and performance on the infrastructure and added capacity as needed.
• Installation, configuration and management of Oracle11g 12c, PostgreSQL & MySQL database servers.
• Client interaction for requirement gathering, so as to design and plan the software and hardwareinfrastructure.
• Familiar with Disk Management Utility. Hands on experience in file system creation and file systemmanagement.
• Provided 24x7 on call server support for LINUX environment including RHEL, Centos and SuSE
• Install & Upgrade OS, System Firmware and related Application software.
• Hardware Maintenance and System Administration of existing p-series systems running AIX 5.3.
• Logical volume management and disk management.
• Administered the UNIX System for clustered AIX Servers running HACMP and DLPAR's with fiber attachedSAN storage.
• Created users, manage user permissions, maintain User & File System quota.
• Setup network printers and installed client/server applications.
• Configured lpp source and SPOT on NIM server.
• Installed OS on NIM clients using NIM Server.
• Define/setup network protocols, Network File Services (NFS) and (NIS).
• Network management of TCP/IP networks, IP address management.
• Performing upgrades of OS and applications.
• Korn & C shell scripting, mainly for scheduling jobs (CRONTAB).
• Inventory management for Software and Hardware.
• Tested products for evaluation purposes and documented for necessary changes required as perenvironment.
• Performed daily backups, restoration of data as per requests from developers.
• Configured SSH for secure telnet and FTP connections.
• Configuration and administration of Fiber Adapter's and handling AIX part of SAN.
• Configured DNS, LDAP, I-planet, Apache HTTP servers.
• Configured Microsoft Active Directory, PDC, and BDC domains.
• Provided 24x7 on call server support for UNIX environment including AIX, Linux, HP-UX, and Sun Solaris.
• Performed User Account management, data backups, and users' logon support.
• Diagnosed hardware and software problems and provided solution to them.
• Monitored trouble ticket queue to attend user and system calls.
• Attended team meetings, change control meetings to update installation progress and for Upcoming changesin 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: Linux (RHEL 5.x/6.x), UNIX (HP UX, ORACLE ENTERPRISE LINUX, IBM AIX), NIM, EMC Storage, Veritas Volume Manager, HCAMP Cluster Veritas cluster server, Web Sphere 8.5.5, apache and oracle database