SUMMARY:

• Over 9+ years of experience in large scale enterprise production environment working as a Systems Administrator of Unix, Sun Solaris, SAN, Linux, HP - UX, Vshpere, Vmware, Citrix, JBoss, Redhat Linux, Solaris, Suse Linux, AIX, Cent OS, OEL and Windows environments.
• Expertise in adding and removing user accounts, backing up programs, maintaining system database files and maintain the project servers.
• Experience with multiple Linux distributions (Redhat, Centos, and SuSE Linux)
• A rock solid knowledge of virtualization of p-series and Blade servers. I was the single resource to manage, build and configure the VIOS and LPAR’s on Blade servers and p-series.
• Administrating and troubleshooting Red Hat Cluster Suites.
• Administrating and troubleshooting Veritas Cluster Suites.
• Setup and configured network TCP/IP on Linux including RPC connectivity for NFS
• Experience with Installing and Configuring SUSE Linux, FEDORA and Centos
• Supported SAP Team for smooth installation and implementation of ERP.
• Worked with Network Appliance - Network File System and NetAPP Filers
• Configure and manage Middleware and web tools such as Tomcat apache, WebSphere, JBoss.
• Installed/Configured the WebSphere server, JBoss application server, WebLogic server; Managed tuning and performance of high profile applications running on them.
• Guided the installation and configuration of Tomcat, JBOSS or Websphere 8 application servers, including high availability clustering, and the appropriate MySQL, Oracle, MSSQL datasource connector.
• Guided the installation and configuration of Apache HTTPD, mod jk, mod proxy ajp.
• Installation and configuration thirty party application like JBOSS, Clearcase, BMC patrol, Oracle 10g. Oracle 11g and 12c.
• Installation and configuration of Jboss, Web Sphere 5.1/6.0 Application Server on Solaris and Linux boxes.
• Apache tomcat, Jboss, siteMinder and Identity Minder administration and support.
• Troubleshoot & debug the issues in the applications in weblogic,websphere,Jboss.
• Strong technical knowledge in Jboss Application server implementation, support, workload management and performance tuning including Web.
• Worked on Websphere Admin, did troubleshooting, worked on JVM
• Worked with network Admin to configure virtual interfaces (vifs) on NetApp
• Installed and configured of NetApp hardware and software products.
• Good experience in script cleanup procedures and backups
• Configure post build using puppet master server.
• Integrate puppet configuration as part of VRO Orchestration.
• Create and deploy puppet master servers in Dev/QA/PROD environments.
• Experience with Installing and configuring RHEL 2.1, 3.0, 4.0, 5.0, 6.0.
• Experience with installing and configuring Hardware Management Console (HMC).
• Installation and configuration of Jboss, Web Sphere 5.1/6.0 Application Server on Solaris and Linux boxes.
• Experience in Solaris 8, 9, 10 and 11 OS
• Worked with Database administrators to tune kernel for Oracle installations.
• Experience in Installing, upgrading and configuring RedHat Linux 3.x, 4.x, 5.x using Kickstart Servers and Interactive Installation.
• Develop puppet modules for all post builds installations like User, Limits, LVM, and Packages, etc.
• Monitoring and configuration of various servers using Puppet modules.
• Improved Linux OS deployment and management by creating customized kickstart scripts and installing puppet.
• Used puppet for central management of Linux configuration files and software package management.
• Experience in configuration of NIS, NIS+, DNS, DHCP, NFS, LDAP, SAMBA, SQUID, postfix, sendmail, ftp, remote access, security management and Security trouble shooting skills.
• Creating Linux Virtual Machines using VMware Virtual Center and AIX LPARs on P550 and P570.
• Experience working on Firewall rules and network connectivity and Load balancers
• Ability to work with DB admin on DB2 and Oracle databases
• Expertise in SMIT, LVM (Logical Volume Manager), Mirroring, User Administration & System Resource management, Paging Space management, and job scheduling.
• Working knowledge of VERITAS Net backup, VERITAS Volume Manager, files system maintenance, and performance analysis and tuning.
• Experience in Siebel CRN, Pega, Webserver, Java based applications
• Created numerous frames with virtual resources and allocated the same to virtual clients
• Created vscsi & virtual Ethernet adapters
• Experience with installation administration of AIX 4.3, 5.1, 5.2, 5.3, 6.1 and 7.1
• Allocated SAN to VIO clients by using mkvdev command
• Good understanding of networking/distributed computing environment concepts
• Experienced in installation, configuration, Deployment and management of enterprise applications using IBM Web Sphere Application server 3.x/4.x/5.x/6.x/7.x and IBM WebSphere Portal server 6.0/6.1 on Different platforms Solaris, Red Hat Linux
• Configured and Administered HACMP 4.5, 5.1, 5.2, 5.3, 5.4, 5.5 IBM PowerHA.
• Extended knowledge of IBM virtualization including configuring VIO servers
• Experienced in Installing, Configuring and Administering of WebSphere MQ Series product on Linux/Solaris
• Installed and configured DLPARs and profiles in DLPARs through HMC.
• Experience in installation and configuration of SAP
• Installation and configuration of NIM master server and clients.
• Understands principles of routing client/server programming
• Expertise in MM (Management Module) IP reset at times of failure master in H-type Blade Center.
• Configured VLAN on Nortel switches in Blade Center.
• Knowledge of EMC Symmetrix.
• Experienced in SAN Zones and creating LUN for the Servers as requested.
• Installation, administration of VIO Server and VIO client LPARS.
• Installation of RHEL, SUSE Linux, Centos and Fedora on physical server and virtual server.
• Installation, Configuration and administration of LPARS.
• Installation and troubleshooting on VMware running Linux (RehHat) and Windows (wintel, windows 7, XP, Vista).
• Implemented and configured Storage Area Network (SAN) using Fiber channel Technology for the LAN-free Backups.
• Hitachi, EMC SAN installation and tuning of Net Backup server environment.
• Excellent client relation skills and the drive to complete tasks effectively and efficiently where customer services and technical skills are demanded as well as the ability to communicate effectively with all levels of management and the client community.
• Ability to work in a team as well as alone.
• Comfortable to assist the company at any given time.
• Team player with good management, analytical, communication and interpersonal skills.

TECHNICAL SKILLS:

O/S: RHEL 2.x, 3.x, 4.x, 5.x and 6.x, Windows 2000/03/NT4.0,Sun Solaris, HP-UX. MAC8.1/9/10 & OS2

Hardware: HP, DELL, IBM, SUN Enterprise, Netezza

Servers: Web Sphere Application Server 3.5/4.0, MQSeries, Web Logic Server, IBM HTTP Server, HTML, DHTML, XML, Java Script, JSP, Servlets, EJB, Apache 2.2, Tomcat 5.5, Active MQ; Jboss 4.2, JDK 1.5,1.6

Networking: TCP/IP, RPC, UDP, NIS, NFS, DNS, DHCP, LAN.

RDBMS: Oracle 7.x/8.0/9i, MS-SQL Server 7.0/6.5 and MS-Access 97/95. SAP HANA, Tomcat

Languages: Perl, Shell, Ruby

Applications: HACMP, Samba, Tivoli (TSM), Symantec Net Backup, VERITAS Volume Manager.

Certification: SAP Certified Application Associate (Edition 2013) - SAP HANA

PROFESSIONAL EXPERIENCE:

Sr. LINUX Infrastructure Administrator

Confidential

Responsibilities:

• Installation and administration of RHEL 4.0/5.0/6.0/7.0 and OEL 5/6.
• Configured kickstart server and updating/applying patches to the servers using Redhat Satellite server.
• Remote system administration using tools like SSH, Telnet, and Rlogin.
• Planning and implementing system upgrades including hardware, operating system and periodical patches. Installing, configuring JBoss 4.2 on Linux, UNIX servers, integrating it with Apache server.
• Implemented Web Application Servers like Oracle WebLogic, and Red Hat JBoss in and Red Hat Linux environment respectively.
• Provided support for JBoss 4.0.x and Apache, applications for operation related to installation and configuration.
• Configure and manage Middleware and web tools such as Tomcat apache, WebSphere, JBoss.
• Installed/Configured the WebSphere server, JBoss application server, WebLogic server; Managed tuning and performance of high profile applications running on them.
• Installation, configuration and administration of VMware, Solaris Zones, Containers and Ldoms.
• Automation of jobs through crontab and autosys.
• Monitoring and configuration of various servers using Puppet modules.
• Implemented rapid provisioning and life cycle management for Redhat linux using kickstart and puppet.
• Installation of packages, patch management, volume management on SuSe servers using YaST.
• Applied appropriate support packages/patches to maintain system integrity.
• Responsible for the cloud technical strategy, architecture and design for online Marketplaces. Defined an architecture based on Openstack and Virtual Networks.
• Familiar with OpenStack concepts of user facing availability zones and administrator facing host aggregates.
• Implemented horizontal auto-scaling in OpenStack cloud, using orchestration tools.
• Scaled developer infrastructure as project grew and transitioned to OpenStack Foundation
• Performed capacity analysis, monitored and controlled disk space usage on systems.
• Monitored system activities and fine-tuned system parameters and configurations to optimize performance and ensure security of systems.
• Adding servers to domain and managing the groups and user in AD, installing and configuring send mail.
• Custom build of Windows 2003 and Windows 2008 servers which includes adding users, SAN, network configuration, installing application related packages, managing services.
• Responsible for maintenance of development tools and utilities to maintain shell, Perl automation Scripts.
• Expertise in VMware vSphere 3/4/5 version ESXi and vCenter operations Management.
• Build LPAR and DLPAR system and Installed AIX 5.2, 5.3 on LPAR using NIM.
• Installed and configured Virtual I/O Server V1.3.01 with fixpack8.1.
• Guided the installation and configuration of Tomcat, JBOSS or Websphere 8 application servers, including high availability clustering, and the appropriate MySQL, Oracle, MSSQL datasource connector.
• Integrating Weblogic 10.x and Apache 2.x and deploying EAR, WAR files in Weblogic Application server.
• Improved Linux OS deployment and management by creating customized kickstart scripts and installing puppet.
• Used puppet for central management of Linux configuration files and software package management.
• Installed, configured, cloned VMs on VMware 5, Vsphere 4.0, configured ESX hosts, adding datastores to ESX hosts, creating vswitches, templates, migrating VMs across ESX hosts.
• Designing Firewall rules for new servers to enable communication with application, Oracle 10g servers.
• Working on Volume management, Disk Management, software RAID solutions using VERITAS Volume manager & Solaris Volume Manager.
• File system Tuning and growing using VERITAS File System (VxFS), coordinated with SAN Team for storage allocation and Disk Dynamic Multi path.
• Fine tuning of Servers and configuring networks for optimum performance.
• Organized various meetings with teams as mentioned above for tracking their requirements as inputs to get this done and designed the plan/steps involved and took user approvals.
• Installing, configuring Nagios on Linux, Solaris clients.
• Setting up network environments using TCP/IP, NIS, NFS, DNS, SNMP agents, DHCP and Proxy.
• Installation, maintenance and administration of Oracle and Db2 Server on Sun Servers.
• Set up user and group login ID's, printing parameters, network configuration, password, resolving permissions issues, user and group quota.
• As a member of the team, monitored the VERITAS Cluster Server 4.1 in SAN Environment.
• Creating and maintaining user accounts, profiles, security, rights, disk space and process monitoring.
• Created new groups and tested first in development, QA Boxes and then implemented the same in production Boxes.
• Administered Linux servers for several functions include managing Apache web servers, mail server and firewalls in both development and production
• Configuring UNIX environments for Oracle Databases such as kernel configurations, file system layouts, or file configurations
• Monitoring and configuration of various servers using Puppet modules.
• Primarily applications support, configure changes, troubleshooting server issues for QA/Stage/Production, monitoring issues through systems like Jira, Zabbix.
• Configuring and maintaining virtual server environment using VMWARE ESX/ GSX, VSphere 4.x, Xen, HP-UX nPars/vPars, Solaris 10 Zones.
• Experience working with DELL and HP hardware.
• Hands on experience using the VI editor.
• Experience with Power VM 2.2 (VIO), HMC Version 6 and 7, EMC CLARiiON subsystem device configuration (Power path)
• Power VM Virtualization (SEA, vSCSI, NPIV), Dynamic LPAR (DLAPR)
• Experience with Integrated Virtualization Manager (IVM)
• Perform day to day LVM operations and System Admin tasks
• Create virtual media repository and LPAR dedicated virtual optical drives in the VIO servers to make new installations, cloning and migrations faster and easier
• Set up and troubleshoot issues with Secure Shell in the environment to accommodate script automation and password changes
• Implemented rapid provisioning and life cycle management for Redhat Linux using kickstart and puppet.
• Guided the installation and configuration of Apache HTTPD, mod jk, mod proxy ajp.
• Experience with installing and configuring sudo, proposed and implemented the idea of building a master sudoers file, and worked on a script to push the file to client LPAR’s on a weekly basis to lock down sudo access as a part of security audit
• Installed WebSphere Portal Server 5.1/6.0/6.1 and enabled Web Content management.
• Migrated WAS 5.0 Network Deployment and Base on Windows platforms to WAS 6.0 ND.
• Experience in NetApp storage devices, setup, configuration, operations and connecting to pSeries hardware.
• Experience in installing configuring and administering MQ 5.3/6.0 on Linux environments.

LINUX System Administrator

Confidential, Phoenix

Responsibilities:

• Administrating and troubleshooting Red Hat Cluster Suites
• Administered Linux servers for several functions include managing Apache web servers, mail server and firewalls in both development and production
• Configuring UNIX environments for Oracle Databases such as kernel configurations, file system layouts, or file configurations
• Monitoring and configuration of various servers using Puppet modules.
• Primarily applications support, configure changes, troubleshooting server issues for QA/Stage/Production, monitoring issues through systems like Jira, Zabbix.
• Configuring and maintaining virtual server environment using VMWARE ESX/ GSX, VSphere 4.x, Xen, HP-UX nPars/vPars, Solaris 10 Zones.
• Experience working with DELL and HP hardware.
• Hands on experience using the VI editor.
• Worked on Openstack cloud which includes installation, configuration, administration of Virtual Machines, creating security groups, tenants, adding resources.
• Implemented multi-tier application provisioning in OpenStack cloud, integrated with Puppet &Chef
• Implemented horizontal auto-scaling in OpenStack cloud.
• Experience with Power VM 2.2 (VIO), HMC Version 6 and 7, EMC CLARiiON subsystem device configuration (Power path)
• Involved in automation of installation of OS and applications on hundreds of servers using Puppet and Chef.
• Implemented rapid provisioning and life cycle management for Redhat LINUX using tools like Puppet, Chef and kickstart
• Worked on installing, configuring puppet, creating profiles, pushing new changes to the servers.
• Power VM Virtualization (SEA, vSCSI, NPIV), Dynamic LPAR (DLAPR)
• Experience with Integrated Virtualization Manager (IVM)
• Perform day to day LVM operations and System Admin tasks
• Create virtual media repository and LPAR dedicated virtual optical drives in the VIO servers to make new installations, cloning and migrations faster and easier
• Set up and troubleshoot issues with Secure Shell in the environment to accommodate script automation and password changes
• Implemented rapid provisioning and life cycle management for Redhat Linux using kickstart and puppet.
• Installation and configuration thirty party application like JBOSS, Clearcase, BMC patrol, Oracle 10g. Oracle 11g and 12c.
• Installation and configuration of Jboss, Web Sphere 5.1/6.0 Application Server on Solaris and Linux boxes.
• Apache tomcat, Jboss, site Minder and Identity Minder administration and support.
• Troubleshoot & debug the issues in the applications in weblogic, websphere, Jboss.
• Strong technical knowledge in Jboss Application server implementation, support, workload management and performance tuning including Web. Server setup configuration with Jboss App Server.
• Experience in applying patches and plug-ins for Jboss Application Server.
• Provided technical assistance for development and support on JBoss application server platforms.
• Implemented procedures for configuration and deployment of production JBoss applications.
• Experience with installing and configuring sudo, proposed and implemented the idea of building a master sudoers file, and worked on a script to push the file to client LPAR’s on a weekly basis to lock down sudo access as a part of security audit
• Installed WebSphere Portal Server 5.1/6.0/6.1 and enabled Web Content management.
• Migrated WAS 5.0 Network Deployment and Base on Windows platforms to WAS 6.0 ND.
• Experience in NetApp storage devices, setup, configuration, operations and connecting to pSeries hardware.
• Experience in applying patches and plug-ins for Jboss Application Server.
• Provided technical assistance for development and support on JBoss application server platforms.
• Implemented procedures for configuration and deployment of production JBoss applications.
• Install, configure, and administer BEA Weblogic 8.1, IBM Websphere and JBOSS 4.0.1/3.2 in clustered and non-clustered environment.
• Installation and configuration of Jboss, Web Sphere 5.1/6.0 Application Server on Solaris and Linux boxes.
• Experience in installing configuring and administering MQ 5.3/6.0 on Linux environments.
• Manage LPARs and provide virtual memory management and memory optimization.
• Experienced in SAN Zones and creating LUN for the Servers as requested
• Experienced with working with Systems Engineers to implement storage solutions which provide high performance, data protection and cost effective use of available storage.
• Installation, Configuration and Troubleshooting of Tivoli Storage Manager (TSM) and License Manager (TLM). Upgrade TSM from 5.1.x to 5.3.x.
• Management of all SAN storage systems, Hitachi, EMC, SUN capacity planning and performance tuning.
• Work with IBM DS8000, DS4700, DS6800, FAStT /DS4800, DS4500 (FAStT 900), USP600, AMS500, IBM nSeries storage hardware and SAN Fiber director series.
• Administration of multiple Linux machines, veritas clusters, and SP nodes from any client platform through WebSM.
• Installation and configuration of NIM master server and clients. Installing OS on NIM clients using NIM Server.
• Well-versed with configuring NPIV for storage & backup purposes
• Documentation: Implemented naming standard; supporting Oracle Databases
• Provided 24*7 on-call support for Unix server

UNIX Engineer

Confidential, Sacramento CA

Responsibilities:

• Plan, design, install, configure, troubleshoot, administer and performance tune 5.1, 5.2, 5.3 and 6.1, Solaris 10, Red Hat Linux Version, HP-UX, and SLES Linux.
• Created mount points for Server directories, and mounted these directories on Linux Servers
• Configured and administrated LPARs.
• Responsible for installation and maintenance of VFSX in a clustered environment.
• Administration and maintenance of WAS ND clusters (vertical, horizontal) and deployment of applications in highly available, load balanced production environments.
• Developed web service integration layer for Web Sphere Portal. Install and configure Web Sphere Portal 5.1/6.0 on UNIX .
• Installation, administration of VIO Server and VIO client LPARs. Configuration of VIO server and VIO clients from Hardware Management Console. Upgrade VIO version 1.4 to 1.5 and 1.4.1.2-FP-9.2 to 2.1.
• Troubleshoot & debug the issues in the applications in weblogic,websphere,Jboss
• Install and configure Jboss 4.2 on Linux/Unix servers, integrating it with Apache server
• Strong technical knowledge in Jboss Application server implementation, support, workload management and performance tuning including Web server setup configuration with Jboss App Server.
• Implementation of OS security as per ITRM standards.
• Migrated from HACMP 4.3 to 5.1 and from HACMP 5.1 to 5.2 and 5.4.
• Designed, installed and configured HACMP cluster environment, with cascading and mutual takeover.
• Dealt with Linux side of SAN; troubleshooting fiber card adapter, replacing fiber card adapters and configuring LUNs back.
• Installed Web Sphere Portal Server 5.1/6.0/6.1 and enabled Web Content management.
• Install, configure and administer MQ 5.3/6.0 on Linux environments..
• NetApp storage devices, setup, configuration, operations and connecting to PSeries hardware.
• Experienced in working with Network Engineers to install, manage, and configure NAS based storage and insure overall system and network security.
• Experience with storage networking, with vendors/technologies such as iSCSI, SAN/NAS, data center storage consolidation, EMC, NetApp, HDS, HP, or Supported and Good Knowledge of designing IT architectures for storage and backup in the enterprise.
• Experienced in Storage Enterprise Cost Reduction, Storage Consolidation, Backup and recovery Methodologies, Storage Replication and Disaster Recovery Solutions.
• Knowledge of ITIL and Business Continuity processes, experience with tape technologies, Information Life Cycle Management.
• Install, configure, and administer BEA Weblogic 8.1, IBM Websphere and JBOSS 4.0.1/3.2 in clustered and non-clustered environment.
• Worked on configuration of heap sizes and pool sizes.
• Improved Linux OS deployment and management by creating customized kickstart scripts and installing puppet.
• Used puppet for central management of Linux configuration files and software package management.
• Monitoring and configuration of various servers using Puppet modules.
• Installing, configuring Jboss 4.2 on Linux, UNIX servers, integrating it with Apache server.
• Implemented Web Application Servers like Oracle WebLogic, and Red Hat JBoss in and Red Hat Linux environment respectively.
• Provided support for JBoss 4.0.x and Apache, applications for operation related to installation and configuration.
• Configure and manage Middleware and web tools such as Tomcat apache, WebSphere, JBoss.
• Experienced with operating and performance tuning storage platforms across the organization to ensure high levels of data quality, availability and security.
• Establish strategies for storage consolidation, centralization, and optimization to reduce downtime and costs while improving security and storage performance.
• Experienced in Providing LUNs to the various enterprise operating systems, Solaris, Linux and Windows.
• Responsible for building and migrating different versions of RHEL
• Managed systems to the HMC and upgrade the firmware of the HMCs as required.
• 24x7 on call server support for UNIX environment.
• Kernel upgrade on RHEL and SUSE
• Perform day to day LVM operations and System Admin tasks.

UNIX/LINUX Admin

Confidential, New York.

Responsibilities:

• Experience in administration of enterprise applications with emphasis on IBM WebSphere Application Server 3.5/4.0/5.0, IBM HTTP Web Server Workload Management (WLM) in Sun Solaris, RED HAT Linux and Windows NT/2000/XP environment.
• Worked as Linux administrations and providing maintenance support to multiple IBM machines p5-520, p5-550, p5-570, p5-595, p7 750s and 770s. Monitoring of various services using Service Management Facility and Service Administration.
• Installing, configuring Veritas Netbackup 6.5 on linux, solaris servers, creating backup polices.
• Designing Firewall rules for new servers to enable communication with application, Oracle 10g servers.
• Working on Volume management, Disk Management, software RAID solutions using VERITAS Volume manager. File system Tuning and growing using VERITAS File System (VxFS), coordinated with SAN Team for storage allocation and Disk Dynamic Multi path.
• Worked on resolving production issues and documenting Root Cause Analysis and updating the tickets using BMC Remedy.
• Fine tuning of Servers and configuring networks for optimum performance.Organized various meetings with teams as mentioned above for tracking their requirements as inputs to get this done and designed the plan/steps involved and took user approvals.
• Setting up network environments using TCP/IP, NIS, NFS, DNS, SNMP agents, DHCP and Proxy.
• Installation, maintenance and administration of Oracle and Db2 Server on Sun Servers.
• Set up user and group login ID's, printing parameters, network configuration, password, resolving permissions issues, user and group quota.
• Installation and configuring of SUN Solaris and Linux servers.
• Involved in Building and configuring Solaris 8/9/10 using Jump start server and Red Hat Linux Servers using KickStart server as required for the project. Maintained maximum uptime and maximum performance capacity for Enterprise Production, QA, and UAT/Staging.
• Incident management for Unix Servers (Solaris, Linux).
• Installed and configured Solaris 10 servers with Zones and containers with Sun ZFS.
• Primary responsibility includes building and supporting Solaris/ Redhat Linux 3,4 servers.
• Monitoring CPU, memory, iSCSI disks, disk controllers, physical disk, HW and SW RAID, multipath, file systems, network using the tools NAGIOS and BMC Tools.
• Extensive experience in installing, integrating, tuning and troubleshooting Apache, Tomcat, WebSphere and Weblogic application server.
• Implemented SUDO, SSH, security tools and implemented SOX (Sarbanes Oxley) security compliance.
• Assisted in configuring the application servers with other components such as database, web servers, LDAP directory, Active Directory, BEA Web logic etc.
• Extensive use of Veritas Volume Manager for Disk management, file system management on Sun Solaris environment.
• Created Zetabyte file system (ZFS) in Solaris 10. Created zpools. Exported ZFS from local zones to local zones.
• Installation and configuration Veritas NetBackup on Sun Severs and Backup using Veritas Net Backup.
• Extensive use of Korn shell, Bash for scripting.
• Expertise in Linux backup/restore with tar including disk partitioning and formatting.
• Involved in Planning, building and Administration of various High Availability clusters and heart beat checking on Sun Solaris using VCS in heterogeneous SAN environment.
• Regular disk management like adding / replacing hot swappable drives on existing servers/workstations, partitioning according to requirements, creating new file systems or growing existing one over the hard drives and managing file systems.
• Planned, scheduled and Implemented OS patches on both Solaris & Linux boxes as part maintenance.
• Worked with IT teams, users and other managers in helping build and implement systems and standards.
• Involved in migration of projects from one flavor to another one.
• Involved in development, user acceptance, and performance testing, production & disaster recovery server.
• Experience working with Shell and Perl scripting.
• Worked on different platform on SUSE Linux which includes 10.x,11.x
• Extensively used LVM - created VGs, LVs & disk mirroring for IBM p-series servers
• Defined and setup network printers, and install client/server applications. Define/setup network protocols, Network File Services (NFS), and Network Information Services (NIS).
• Performance Management & Tuning of UNIX Kernel.
• Security, users, groups’ administration and daily backup and restore operations.
• Package, build, integrate and deploy enterprise J2EE applications on WebSphere 3.5/4.0/5.0 that involves EAR, JAR, and WAR files.
• Experienced working with ksh, csh, bash, php, ruby, perl.
• Administered Linux servers for several functions including managing Apache/Tomcat server, mail server, MySQL database, and firewalls in both development and production.
• Preparation and execution of server patching and upgrade on more than 200 servers including HP-UX, Solaris and Red Hat Linux servers. Installed VMware server 2 on the systems.
• Worked on VMware bench marking tools and troubleshooting devices.
• Monitored RAM/CPU, Disk space utilization.
• Experience in setting up cluster and creating repository queue managers for load balancing.
• System & backup management using IBM ADSM Backup Server.
• Creating user profiles including groups and user accounts, assigning them passwords periodically and allotting them the required permissions. Changing the permission specifications as per requirements depending on User Administration duties.
• Installation/administration of Linux and NT/2000 Servers on a LAN.
• Installation and Administration of TIVOLI Service Desk.
• Networking service, performance, and resource monitoring.
• Applying software maintenance, program fixes and keeping the system software releases current.
• Installed and configured Sudo for users to access the root privileges.