Summary

• Having 11 years of experience as System Admin / Linux Admin, Shell script automation for UNIX servers.
• Subject Matter Experience in administering Solaris Linux. Experience in Installation, Configuration, Backup, Recovery, Maintenance, Support of Sun Solaris Linux.
• Expertise in Installing, upgrading and configuring Red Hat Linux 3.x, 4.x, 5.x 6.x using Kick start Servers and Interactive Installation.
• Highly utilized Installing, upgrading and configuring SUN Solaris 8, 9 and 10 on Sun Servers using Jumpstart Servers, Flash Archives and Interactive Installation.
• Extensive experience in designing and configuring open source management tools Puppet, Chef and CFEngine.
• Worked with Database administrators to tune kernel for Oracle installations.
• Experitise with VERITAS Volume Manager VxVM , VERITAS File System VxFS , VERITAS Net Backup, VERITAS Clustering with SAN, NAS environment.
• Highly involved in installing, configuring and implementing the RAID technologies using various tools like VxVM and Solaris volume manager.
• Extensive experience in Creation and managing user accounts, security, rights, disk space and process monitoring in Solaris and Red hat Linux.
• Installation and up gradation of Packages and Patches configuration mgmt., version control, service pack. reviewing connectivity issue regarding security problem.
• Extensively used in configuration of NIS, NIS , DNS, DHCP, BIND, NFS, LDAP, SAMBA, send mail, ftp, remote access, security management and Security trouble shooting skills.
• Expertise on Webservers such as planet Webserver 6.0 /Sun one web server 6.3, 6.5, Tomcat 3.x, 4.x, 5.x Apache Server 1.x, 2.x and integrating them with Web logic 10.x servers.
• Experience in administering VMware Infrastructure Client 3.5 and Vsphere 4.0, 5.0, Xen, KVM.
• Installation and configuration of Oracle RAC 11g on Solaris, AIX and Red Hat cluster nodes.
• Expertise in scripting for automation, and monitoring using Shell, Python Perl scripts.
• Experience in Installing Firmware Upgrades, kernel patches, systems configuration, performance tuning on Unix/Linux systems.
• Experience in Sun Solaris 10 Ldoms, Creation of Zones, Service Management Facilities, Virtualization, Container based .
• Extensive working in SAN environment like EMC Symmetrix DMX3, DMX4 and Clariion CX3 series arrays.
• Creating Linux Virtual Machines using VMware Virtual Center and AIX LPARs on P550 and P570.
• Extensive experience working on BladeLogic Server automation and OS provisioning administration.
• Expertise on OPSWAE automation tool.
• Highly involved in ESX/VMware with P2V conversion from physical servers to virtual.
• Extensive experience on PowerCLI
• Good knowledge on DBA administration
• Good work exposure to windows Administration.

TECHNICAL EXPERIENCE

• Operating System Windows, RHEL, SUN Solaris.
• Automation Tools Opsware , BladeLogic, P2V
• Clusters RedHat cluster and Veritas
• DATABASE DBA on Oracle.
• Virtualization VMware Products ESX
• Server Configuration DHCP, DNS, Web Server, NFS, Samba, FTP, Samba, Mail Server and Squid Proxy, Squid Guard.
• Scripting languages Shell scripting Sed , awk , grep, cut
• Web Servers Apache
• Additional Tasks Backups using tar, cpio, rsync tools.
• Instillations Oracle 9i/10g on Linux, Remote Installations in Linux
• Security Level IPTables, Tripwire, nmap
• Veritas Volume manager, cluster and Fencing

EXPERIENCE

Confidential

LINUX/UNIX System Administrator

Responsibilities:

• Expanded the environment from 128 to over 280 systems over the course of 12 months.
• Designed, supported, and maintained Oracle Real Application Clusters supporting business critical applications Integrity Itanium2 platforms on RHEL 4 5.
• Responsible for installation, configuration, and administration of Red Hat Linux, Solaris systems.Hands on experience with AWS EC2
• Installs, upgrades, configures, tests, maintains and supports operating system software in a production/development environment at Tier 3 level.
• 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 with enterprise SSO technologies
• Configuration and administration of LDAP, NFS in Linux and also implemented Samba for sharing of resources between Linux and Windows environments.
• 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
• Experience with NetIQ Access Manager
• 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 multipleServers/Clusters and maintained Load balancing.
• Worked with DBAs on installation of Oracle database, RDBMS database, restoration and log generation. Perform security patching of Linuxservers

Confidential

LINUX/UNIX System Administrator

Responsibilities:

• 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.
• Written NSH script in Bladelogic to create Falr image and Tar file backups for Solaris and Linux Servers.
• Use Blade logic Configuration Manager to upgrade Solaris and Linux operating Systems as well as update firmware, HBA, EMCpower and Banktools through Bladelogic.
• Installing and configuring SUN Solaris 10 on Sun Servers using jumpstart and Red Hat Linux ES 5.x using kick start installation.
• Configuration and troubleshooting - LAN and TCP/IP issues.
• Participated in on-call rotation to provide 24X7 technical supports.
• Handling problems or requirements as per the ticket Request Tracker created.
• Use Bladelogic Provisioning Manager to build new Solaris and Linux Servers.
• Performed patching and OS upgrades rebuilds and associate hardware break/fix, triage and software Installations related to the patching and OS upgrade activities.
• Provisioned and build CHP compute host platform Red hat Linux 6.1 virtual machines, these servers based cloud computing.
• Installed and configured Solaris 10 servers with Zones and containers on SUN M5000 and T2000 Servers with SUN ZFS.
• Installation and configuration of management tool Puppet across RHEL environment.
• Developed the scripts to push patches, files and maintain configuration drift through the Puppet tool.
• Provided day to day build support in an environment consisting of thousands of Solaris, Linux and AIX servers for a 24x7 demanding trading division with emphasis on responsiveness and project ownership.
• Provided rotational on call responsibilities to support issues that arises as the result of patching, upgrades or server rebuilds performed by the team.
• Work with Engineering groups, Web Commerce Group, to plan, design, scope and implement development projects on pre-production as well as production systems.
• Responsible for automation of key Unix Systems administration tasks such as User admin, scripting, setting up connectivity, backup and automation scripting and keeping system documentation up to date.
• Experience working with Solaris Zones/Containers and new features of Solaris 10, zone reconfiguration and file system layout modification of the containers supporting the Sybase and Oracle database.
• Installed and upgrade HBA Drivers, Firmware, Power Path and SAN Agents like NAVIAGENT, NAVICLI and NAVISCLI for EMC SAN storage.
• Installed Hadoop on Red hat Cluster servers.
• Setup Hadoop Distributed File System HDFS for high-throughput access to application data.
• Worked on weekly decommission process on enterprise wide servers in based on request from customers, take all necessary due diligence before shutting the servers.
• Perform Power down verification in data center after decommissioned the servers remotely, verify and pull the cables and request cloud blue vendor to remove servers from data center. Roar request for network cleanup and ip address re use purpose.
• High availability in On-site data center support in one of the huge data center of Bank for both hardware and software
• Worked and performed data-center operations including rack mounting, cabling.
• Communication with customers, data center personals and Vendors on decommissioned based servers.
• Attended team meetings, change control meetings to update installation progress, and for upcoming change in environment.
• Documented installation procedures, changes required in present environment and Provide server remediation to ensure all vulnerabilities have been addressed.