SUMMARY:

• Over 8 years of experience as UNIX/Linux Administration in RED HAT LINUX/ SOLARIS and Windows, knowledge in computer hardware and I/O devices. Strong experience in System Administration , Installation, Upgrading , Patches , Migration, Configuration, Troubleshooting, Security, Backup, Disaster Recovery, Performance Monitoring and Fine-tuning on UNIX LINUX Red Hat Linux, SUN Solaris Systems.
• Experience with implementation, maintenance and support of multiple server platforms Linux, Sun, HP, and IBM.
• Auto provisions of Server installation using Cobbler and puppet.
• Used CFEngine and Puppet to automate and configure the Large Environment.
• Experienced in configuring Jumpstart and Kick Start servers to initiate installation of Solaris and Red Hat Linux on several machines at once.
• Experienced in installation, configuration, administration, troubleshooting, tuning, security, backup, recovery and upgrades of RHEL 5 to 6, Solaris 8/9/10, IBM AIX . Win NT/2000 Server.
• Installed, monitored and supported Web and Application Servers on Solaris and Linux environments.
• Configured TCP/ IP protocols like NIS, NFS, DNS, DHCP, LDAP, FTP, SFTP, SSH etc.
• Creating and maintaining users, profiles, security, rights, file system management, disk space and process monitoring.
• Experience and Familiar with Virtualization technologies like installing, configuring, administering VMware ESX/ESXi and Citrix Xen Server. Created and managed VMs virtual server and also involved in the maintenance of the virtual server.
• Experience in writing Shell scripts using ksh, bash, Perl and python for process automation of databases, applications, backup and scheduling.
• Experience with data centre backups, disaster recovery and off site media storage.
• Strong understanding on RAID, used LVM , VERITAS Volume Manager.
• Experience with High Availability cluster servers using RHCS VERITAS Cluster Server
• Experience in data centre backup and recovery operations utilizing StorageTek tape libraries and Legato Network software.
• Installed, configured upgraded WAS 6.0, 6.1,8.5 and provided extensive support in code deploying,
• Experience with change control processes and incident/problem management software.
• Experience in using Admintool, CDE Sun Solaris ..
• Highly proficient in working of various mail servers and protocols such as send mail, POP3, IMAP, SMTP and postfix.
• Experience in performing DBA tasks such as creating users, roles, tables, table spaces, imports and exports for development of databases.
• Dedicated to excellent customer service. Self-direction, leadership and problem solving skills. Ability to prioritize and work proactively. Strong communication, documentation and teamwork skills.
• Knowledge of Routers, Switches, Hubs, Firewalls, LAN, WAN Intranet, Internet.
• Experience supporting 7x24 production computing environments. Experience providing on-call and weekend support.

Skill Set:

Personal Experience:

Confidential

Unix/Linux System Administrator

Responsibilities:

• Responsible for implementation, integration, problem resolution, root cause analysis, disaster recovery, audits, hardware/software OS and application maintenance, performance tuning, upgrades, OS backups, migrations, adding/removing users, printers, space management, and all other daily system administration functions.
• Converted most of shell and Perl scripts to native CFEngine Puppet policy.
• Automated Most of day to day work using Puppet under GIT Version control.
• Maintained most of the security Configuration on UNIX/Linux environment with Cfengine Policy under SVN version control.
• Created disk groups, volumes, volume groups and RAIDs using LVM in RHEL VERITAS Volume Manager.
• Auto Provisioned Installation using Cobbler.
• Installing, Monitoring and maintaining DELL quest Authentication QAS service to integrate Unix users with Active directory
• Experience with Jumpstart Kickstart with PXE Installations on Solaris Linux
• Building various RPMs and Patches, installing various software's and patches under RHEL Linux environment.
• Involved in implementing Trac Mantis Bug tracking tools servers on Red Hat Linux
• Installing YUM server remotely locally.Scheduled cron jobs for job automation.
• Worked with RHCS Clusters and deployed two-node cluster.
• Worked in Implementing and configuring Bacula Backup tool and recovery of Virtual machines using bacuala.
• Involved in disk configuration and disk crash recovery using format and fdisk
• Configured Implemented DNS , DHCP, NFS, SAMBA to support cross platform file sharing
• Installed and configured VMware ESX server instances for virtual server setup and deployment.
• Configured and installed RHEL 5.X 6.X on Vmware and Physical machines HPDL and PowerEdge R720/710/R910 .
• Responsible for creating VMware virtual guests running Linux, Solaris, Windows.
• Customized the user CDE environments and user profiles.
• Troubleshooting and analysis of hardware and software failures for various UNIX servers core dump and log file analysis .
• Installed, maintained and fine tuned the Apache-Tomcat server and Websphere Application Server in Linux Platform
• Created Bash/perl/python shell scripts to monitor system resources and system maintenance.
• Migration of RHEL 5.X to RHEL 6.5 and working on Migration from RHEL6.5 to RHEL 7.
• Performed application installation and management on Solaris or applications like WebSphere Application Server WAS 7, JBoss 4.2.x, 5.x, Oracle 10g, Sybase 12.5 etc.
• Deployed, configured the environment on Webphere .
• Used VERITAS NetBackup Bacula tool for Backup and recovery
• Installed/Configured Solaris/Linux system - Firewall, IDS,VPN Server, VNC, CVS, TWiki , OpenLDAP, Linux Clustering, SQID,OTRS, Qmail, Sendmail, Web server.
• Worked with SAN, in EMC and HITACHI disks, their configuration and installation of power path
• Used ESN Manager LUN/Meta mapping to perform Storage Allocation / Deallocation for the EMC Storage SAN
• Installation of OAS Oracle Application Server on RHEL and its configuration with oracle database.
• Worked with Oracle team for restore of Oracle Instance and Building Oracle Cluster.
• Resolve and Document reoccurring issues for level 2 support.
• Work with Business partners with varying backgrounds to identify there requirements and identify their needs and also security issues.
• Audit using the Tiger audit Tool and identify risk and Resolve.
• Worked on change management application used for problem tickets and production change requests.
• Attended team meetings, change control meetings to update installation progress and for upcoming changes in environment.

Environment: Red Hat Enterprise Linux 4/5.5/6.5, AIX , HP-UX 11.31, Sun Solaris 10/9,, Windows 2012,Websphere, Web logic, VERITAS Volume Manager 5.0, Bacula, Cfengine, puppet, Cobbler, Sun Enterprise 4500, Sun Enterprise T2000/T5220, Sun Fire V245, HP-UX-rp3440/rx6600/rx3600/rx7640, Pentium PCs, Oracle 10g, Perl, CVS, SVN, Laser Jet Printers.

Confidential

Senior UNIX Administrator.

• Lead for Systems Group responsible for System administration of all application system. These include: scripting and automation of recurring tasks, installation, backups, patch management, performance tuning, day-to-day system resource management and monitoring. Configure CVM cluster configurations with CFS and LOFS mounts across nodes.
• Maintain and improve common services: Active Directory, file and print sharing, Exchange messaging infrastructure, development environments.
• Sound experience in various problem management and change managements through remote administration tools.
• Administrating VCS Freeze/Unfreeze of resource groups, switching and Fault monitoring.
• Installation, configuration and administration of AIX 6.1, administration of dedicated and shared processor LPARs and standalone pSeries servers.
• Create partitions, partition profiles, and system profiles, Activate partitions, adding, moving, and removing memory, processor resources, and I/O slots.
• Solaris OS Upgrade from V8 or V9 to Sol10U6 with EIS Patching V1 0 For spark/ Fujitsu servers. Solaris10 kernel update 6 and Veritas upgrade to 5.0mp3rp2.
• Troubleshooting VCS related issues , cfs global issues, link issues, node dead, node not joining the cluster, node exit, service group not fail over, faulted etc.
• EMC Powerpath Removal on Test/QA/Production Boxes and Storage Allocation.
• Contribute actively to reduce large number of security incidents through Enterprise security management ESM as per policy.
• LVM related activities i.e. VG creation, LV and filesystem creation and extension, Working with jfs and jfs2 file systems and log devices.
• Daily analysis of logs generated in the system and monitor system error. Performance monitoring analysis using native tools like topas, vmstat, iostat and netstat tools.
• Managed File system issues. Process, swap and shared memory issues, Working on paging spaces, analyzing the usage, increasing, decrease the paging spaces etc on AIX.
• Handled disk management configuration with SVM, VxVM, and LVM. Growing shrinking the volumes, deporting, importing and reorganizing disk groups.
• Server Virtualization using VMware for SuSE linux and Solaris 10 Zoning
• Understand the requirements of apps team and utilizing virtualization wherever possible.
• Build and configure SUN VM. Including Vxvm, VCS, NFS, CFS . Implement solutions within traditional and cloud-based infrastructure based on our standards and best practices.
• Understand the work load and identify the critical applications and process, working with sar, vmstat, iostat, netstat performance tools to analyze the performance.
• Handle service dispatch requests for upgrades and package install

Environment: Hardware: T5220, T5240, M Series ,F15k, V440 and E280R

Software: Solaris 9/10, zones, CFS, VERITAS Cluster 5.x, NFS, DNS, SNMP, RHEL 4/5/6, VXvm 4.x/5.x. SPARC T4-1 Server

Confidential

Systems Engineer-

• Create and manage user accounts, groups and access levels.
• Configuration and Administration of Disk, File System File Security.
• Managed patches and packages, Process Control and scheduling system related jobs using Autosys .
• Maintain NIS, NFS servers and Auto FS Clients. Commission and Decommission of Servers and application.
• Health-Checks for Sun Servers, Linux Servers after commissioning.
• Experience in Job scheduling, and monitoring of various jobs running. Taking care of File Systems related issues.
• Expertise in Hardware Diagnostics with Sun tools. Responsible for the all level I and level II tickets involving syslog alerts, camcs alerts, tng alerts, cpu , system status alerts etc.
• Detecting and resolving system errors and crashes, disk space problems, huge file sizes, and file system full errors.
• Troubleshoot with customers via email and telephone conference to resolve a vast array of issues.
• System troubleshooting in case of a failure and maintain server uptime above 99.99
• Change Management and Implementation of Changes to the Environment
• Use of shell scripts to automate routine tasks
• Ensure that all systems conform to security guidelines of the company
• Create Disk groups, Volumes and File systems
• Resize System volumes and file systems
• Managed customer operational requirements such as change requests, configuration updates, technical and operational inquiries.
• Participated in system audit check for all Solaris servers
• Provided existing problems and solutions for all issues found during audit check
• Preparing technical documentation for the Knowledgebase repository which maintaining in the organization nationally.

Environment: Hardware: V880, V440 Clusters.

Software: Solaris 9.

Confidential

Unix/Linux System Administrator

Responsibilities:

• Performed SAN switch migration from Cisco Switch to Brocade.
• Installed and configured Oracle 10g multi partition non-RAC installation running on a single E10K with Veritas Volume Manager.
• Upgrading of multiple critical NT4 member servers using ESX server and P2V to prevent downtime and production outage.
• Experienced in redefining volume groups, migrating, mirroring logical volume using VERITAS VOLUME MANAGER.
• Creating Jumpstart image for Solaris 9 and 10 and configuring new Linux servers.
• Worked with McData San Navigator to zone EMC, Hitachi and IBM DS8300 Storage Arrays
• Created/Administrated Zones/Containers in Solaris 10 and implemented security to Zones.
• Utilizing Solarwinds to maximize network throughput, when downloading to field terminals minimizing download times during upgrades without causing network saturation.
• Implemented and configured Tivoli Maestro and Netview to proactively monitor the enterprise network for file space, file size, critical processes, system availability and central view of potential problems and alerts for operations.
• Maintained disk space, performed backups, and ensured archive log processing for the Oracle DB.
• Sole system administrator onsite and on call from conversion and start up administering 8 AIX RS6000 H50 R50 , 24 SUN Solaris, and 2 Fedora LINUX servers running the PA Lottery with a base of approximately 7,500 terminals.
• Responsible for implementation, integration, problem resolution, root cause analysis, quality assurance, disaster recovery, audits, hardware/software OS and application maintenance, performance tuning, upgrades, OS backups, migrations, adding/removing users, printers, space management, and all other daily system administration functions.
• Used performance-monitoring tools such as BaseBoard Management Controller BMC tools, RPM to enhance system.
• Installed, configured and supported Citrix Metaframe XP/Presentation Server's within a Citrix Server Farm. Configured, tested and deployed a production Citrix Nfuse Web Interface Server within the Citrix Server Farm.
• Performing Testing and verifications of systems, network connectivity and functionality prior to being released into production. Production level support to CVS Concurrent Versions System servers which hosts Sun ONE product codes.
• Monitoring the server performance using Nagios and configuration and troubleshooting LAN and TCP/IP issues and Weblogic.

Environment: SUN Solaris 8/9, Sun Sparc, Fedora LINUX servers, AIX RS6000 H50 R50 , Tivoli Maestro, Kick Start, Weblogic,

Netview, Solarwinds, Point-to-Point T1, Nagios, VSAT, Cisco PIX, Astaro firewalls, SSH, AIX and Oracle 9i DB.