Professional Summary:

• Over 6 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 10/9/8/7 and RHEL 4/5/6 implementation Administration, Installation Maintenance.
• 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.
• Hands in experience with AWS EC2
• 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.
• 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 Admin
• Installation, configuration and maintenance of Sun and HP servers.
• Management of User accounts, System security, change management and performance tuning.
• Installation of SSL certificates Linux servers.
• Monitoring and administering Sun-Solaris servers and Red hat Linux servers.
• Installation of Patches, Hardware, software's and Firmware upgrades.
• Ability to handle multiple tasks and work independently as well as a team member.
• 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.

Technical Skills:

Professional Experience:

Confidential

LINUX/UNIX System Administrator

Responsibilities:

• Responsible for installation, configuration, and administration of Red Hat Linux, Solaris systems.Hands on experience with AWS EC2
• 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.
• Hand in experience with all the AWS EBS,Security Groups,Route53,VPC,Elastic Caches,Cloud Form EC2,S3
• 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 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.
• 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
• 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

LINUX/UNIX System Administrator

Responsibilities:

• Patching of RHEL5 and Solaris 8, 9, 10 servers for EMC Powerpath Upgrade for VMAX migration.
• Worked in the ARP protocal
• Configuration of LVM Logical Volume Manager to manage volume group, logical and physical partitions and importing new physical volumes.
• 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.
• 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

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.
• 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

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.
• Experience in installing local and remote YUM server on RedHat.
• Co-ordinate with web administrator's team in installation of Web Sphere Application Server.
• 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

LINUX /UNIX 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.