TECHNICAL SUMMARY

• A results-driven and technically adept IT professional offering over 7.5 years experience excelling in Linux Systems Administration.
• Expertise in installation, administration, patches, upgrade, configuration, performance tuning and troubleshooting of Red hat Linux 4/5.x/6.x, Sun Solaris 8/9/10 SuSe EL 7/8/9/10 and Window NT 4.0/2000/2003.
• Experience with high-end enterprise servers like Sun T2000, 5240, M5000, 6800, 4800, HP Proliant DL 380, 385, 580, BL400c, BL480c, BL685c, BL580c Gen 5,6,7,8. IBM HS22, HS12, LS22 Blade center Servers.
• Expert in Jumpstart, Kickstart, Infrastructure setup and Installation Methods.
• Expertise in file system concepts like LVM, SVM, VxVM, creating new file systems, increasing and decreasing file systems, mounting file systems, un-mounting file systems and troubleshooting Disk space issues.
• Expert in configuring Bonding in Red Hat Linux.
• Creating and maintaining user accounts, profiles, security, rights, disk space and process monitoring.
• Experience with backup technologies like Tivoli Storage Manager 5.x, 6.x and VERITAS Netbackup 4.x, 6.x, 7.x, and EMC Networker v7.
• Experience in Installing, Configuring, and Implementing Virtualization Environment Using VMware ESX and ESXi, Oracle Virtual Box, and Microsoft Virtual PC .
• Experience working with SAN Devices like EMC Clariions, DMX, VMAX, 3PAR, NetApp filers and NAS Solutions like Oracle ZFS7420.
• Coordinated with SAN Team for storage allocation and Disk Dynamic Multi pathing DMP .
• Worked on Various Storage hardware like EMC Symmetrix, EMC Connectrix and Hitachi data systems.
• Experience managing NetApp filers by creating volumes on raid groups and aggregates and sharing to Windows and UNIX servers using CIFS NFS.
• Planned, documented and supported high availability, data replication, business persistent, fail-over, fallback Solutions.
• Expertise in Installing and Managing LDAP, NIS, NFS, DHCP, SAMBA and DNS.
• Backup jobs, housekeeping, database, proprietary jobs using CRON, EMC legato Networker and BMC Control-M troubleshooting daily job problems.
• Strong experience and understanding of Auto mounts, TCP/IP, SMTP and Printer configurations.
• Extensive experience in installing, integrating, tuning, and troubleshooting Apache, Tomcat and Sun ONE.
• Monitoring the hosts and networks using NAGIOS, HP OpenView and BMC Products.
• Configured installed ALOM Advanced Lights Out Manager Load Balancer.
• Experience in architecting, setting up data centers and migration of applications.
• Strong analytical, diagnostics, troubleshooting skills to consistently deliver productive technological solutions.
• Providing 24/7 technical support to Production and development environments
• 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.

TECHNICAL SKILLS

PROJECTS ROLES/RESPONSIBILITIES

Confidential

Linux Admin/ Tibco Admin

Job responsibilities:

• Administering user accounts: Adding users, user-groups, removing users groups and changing user environments.
• Used RPMs to install, update, verify, query and erase packages from Linux Servers.
• Sudo administration and Redhat Linux package administration using RPM and YUM.
• Regularly monitored and worked on application specific alerts.
• Worked on everyday tickets raised through remedy ticketing system by the users.
• Trouble shooting and monitoring alerts for application performance issue.
• Working on tickets to resolve in a timely manner.
• Competent on supporting integration to interfacing systems/applications, via TIBCO Business Works Adapters, SOA Composite and Java based Web Services etc., for access to these systems both internal/external to the organization possess good knowledge of underlying middleware architecture and Solaris/UNIX Servers and TIBCO EMS/JMS front-end/back-end operations
• Administering TIBCO EMS Server.
• Supporting Hadoop 2.0 in production and non-production server.

Environment: Red hat EL 6.x, TIBCO 8.0, Java, JBOSS, Hadoop 2.0, HDFS, VMware.

Creating, managing user, groups, and queues in EMS Server.

Confidential

Sr. Linux/Unix Admin

• Installed, Configured and Maintained Red Hat Linux / Red hat Enterprise 6 .
• Supported Redhat servers in Production and Development environments.
• Worked on Virtualizing Redhat servers using vSphere 4.1/5.0 and managed ESX servers using vCenter and also worked with ESX Cluster and vMotion.

• Virtualized Red hat servers using vSphere 5.0 and managed ESX servers using vCeneter and also worked with ESX Cluster and vMotion.
• Installed and Configured Red Hat Linux Kickstart /PXE and configured yum repositories for different Minor Versions of Linux.
• Worked with IBM X series, HP DL and Dell Power Edge Model rack and blade centers like HP C6000 C7000.
• Installed and configured openLDAP to create user accounts and to assign access permissions to the users.
• Installed and Configured 10GbE Interfaces for Linux with dual port NIC cards for Active/Passive, Aggregation mode 0 modes and Active-backup mode 1 for RHEL 5/6.
• Worked with Centrify, on top of openLDAP which enables to consolidate all workstations, user, and group accounts in Active Directory and use Active Directory for all authentication, authorization, and directory services.
• Installation and configuration of backup clients like Networker on Linux servers.
• Experience working with HP Openview client and server configuration.
• Experience in writing scripts to automate jobs and debugging scripts.

• Experience in using protocols like NIS, NFS, SSH, SFTP DNS.

• Administered Volume groups and Logical volumes using Linux volume manager LVM .
• Installation and support of various applications like Weblogic server 10, WebSphere 6.1 JBoss 4.x, Apache 2.x, Oracle 11g, Mysql.
• Involved in Designing and Implementing host level migrations and replacing virtualization using P2P and P2V.
• Experience working with HP and IBM Blade centers to consolidate data centers.
• Managed 100 UNIX/ Linux servers, Solaris on Oracle HP and Dell server including blade centers.
• Mirroring of root disks using Hardware Raid Controller on HP Dell HW.
• Responsible for supporting the existing infrastructure and support for Production and Non-production servers. Worked on high and critical priority tickets, coordinating with different teams, and customer and provided with appropriate RCA's.
• Administration of Websphere Application Server 6.x with Network Deployment, and Extension Deployment, on Red hat Linux.
• Data migration at Host level using Red Hat LVM, VERITAS Volume Manager and Solaris LVM
• Troubleshooting and performance tuning of various systems problems such as application, network and hardware related issues.

Environment: Solaris 8, 9, 10, Red hat EL 6.x, SuSe 10, IBM x3650, IBM x232,IBM x236,SUN T2000, T5120,T5240,M5000,Sparc T4-4, E220, E420, 450, V240, V880/890, E3500, BL460c, BL480c, BL685c, EMC-Networker Netbackup, IBM Tivoli Storage Manager, HP, Cisco Works, Korn shell, VMware ESX3.5, VMware Vsphere ESX4.0.

Confidential

Sr. Linux Admin

Responsibilities:

• As an administrator my duties included supporting Linux System Administrator customers with RHEL/SUSE/Solaris a combination of systems architecture, systems development, Unix/Linux operating system lifecycle development, technical assessments, implementation administration, regression process development, SAN support from a directory standpoint, technology scaling, server builds, migration and/or transition planning, project planning, standards validation/development, technical documentation, presentation to management, training and mentoring of more junior staff and troubleshooting and problem resolution.
• To provide ongoing support in systems management and administration of Linux/Solaris in global-scale environment.
• Provide rotational on-call support responsibilities. Production Support: Provided 24x7 supports for various divisions within the Company and resolve all production issues in a high pressure and time sensitive environment.
• Issues related to NFS, NIS, LVM, Grub corruption, configuration maintenance of RAID level 0,1,5 , troubleshooting VERITAS Volume Management and cluster server environment, VMware configuration, auto-mount, ODS, SCSI errors, installing Solaris/Linux software and patches, NTP and Cron errors, swap space, memory and capacity alerts, SSH and hung system reboots, Access Management control using Active Directory and LDAP, file restores and troubleshooting backup interfaces, Sun System Crash Dump Analysis, ASR errors, troubleshooting Sysinfo, systems panic, bringing system back online after failure, modifying kernel parameters, server moves, troubleshooting network connectivity and DNS errors, RVRD daemon, Autosys job failure, Apache, SAN connectivity, add/delete EMC SRDF and Clarion Storage, NetApp Qtrees etc.
• Developing scripts in PERL and SHELL to automate the process.
• Disaster Recovery and Change Management: Designed and implemented disaster recovery solutions such as clusters using VERITAS Cluster server for storage replication and to allow seamless failover of IP on the DR site.
• Used puppet to automated repetitive tasks, deployed critical applications, and proactively manage change, scaling from 10s of servers to 1000s.
• Weekly meeting to discuss change management, datacenter and infrastructure approvals/issues.
• Server Optimization and Workstations Consolidation: Monitored health of servers and implemented customized solutions where applicable as well as provide reports on server utilization. Standardization, Documentation and Processes: Created run books for global consistency and streamlined and enforced processes to improve efficiency and accountability.
• This includes setting up global standards for various customized images for Linux and Solaris, hardware standard Sun and HP and storage presentations and initialization. Engineered and managed process flows and event management as per business requirements.
• Production Support Systems engineering duties related to Red hat system administration DNS, DHCP, NFS, NIS, LDAP, user account maintenance, backup recovery, Auto-mounting, License Management, Printer configuration.
• Client interaction for requirement gathering, so as to design and plan the software and hardware infrastructure. Installed and configured Oracle 10g and MySQL databases for development and production use.
• Managed e-mail systems, including POP, SMTP, text, and web-based clients, as well as virus scanning/filtering software Installed, configured and managed DNS service for several domains Performed OS installations and configuration for testing and implementing server environment based on virtualization.
• Created test scenarios for testing NIS, NFS, DNS and other functionality of the OS. Maintained system security, including password checks, permission scans, implementation of security ensuring tools Linux environment. Managed disk space on server systems using Software RAID and Logical Volume Manager.
• Installed and maintained web servers Apache Tomcat and Apache HTTP 1.3, 2.2 Web server in Red Hat Linux.
• Dealt with Linux Utilities: KICKSTART, SSH, FTP, AUTOFS, Quota Management, wrappers. And provide timely solution to users on issues of network environment software problems. Also, configured Linux servers to handle the following duties: User Management, Process Management, Memory Management, Text processing tools, Log Management, Package Management, Disk Management and Swap Partition/Files Management.
• Installation of Firewall checkpoint. Installed and configured IPFilter, to protect Linux system that was placed on the Internet.
• Handled installation and configuration of Linux MTAs Sendmail .
• Provided technical support for clients and application development teams.
• Prepared Bash Scripts for Automation of Server tasks. Extensive development of maintenance scripts to monitor system status, providing web-based, e-mail notification of system problems such as security breaches, loss of network connectivity, mail queues, user activity, disk allocation, and application availability.
• Preparation of operational testing scripts for Log check, Backup and recovery and Failover. Creation and implementation of shell scripts to take care of DB backup, monitoring alert log and log rotation reports.

Environment: Red hat Linux 3,4,5,6 Sun Solaris 8,9,10 Sun V440, V490 T5220 T5240 Sparc stations 20, Switches, VMware ESX 5.1, oracle 11, VERITAS Cluster Server 5, VERITAS Operations Manager. DL380, DL 580,585 G2, G5, G7's

Confidential

Sr. Unix/Linux Admin

Responsibilities:

• Installation and Configuration of Solaris 10, Red hat Linux 5 operating systems on large distributed environment.
• Configured, administered and effectively monitored AIX on IBM bladecenter servers and P-series servers.
• Implemented remote installation on servers using AIX Network Installation Manger NIM , Red hat Linux Kickstart and Solaris jumpstart Servers.
• Installed and configured Red hat software's and 3rd Party tools using RPM's and YUM on Red hat servers.
• Administration, Maintenance and Management/Monitoring of NetApp filers/Clusters which includes FAS 2040.
• Worked on NetApp filers like FAS 3240 6070 running DATA ONTAP 7.x.
• Involved in creating volumes on raid groups and aggregates and sharing to Windows and UNIX servers using CIFS NFS.
• Worked on scripting using shell, bash and korn.
• Experience working Snapmirror Snapvaults for backup and replication purposes on NetApp devices.
• Upgraded Red Hat Linux servers from 5.2 to 5.4 and AIX from 5.2 to 5.3.
• Involved In Migration from Solaris to Red Hat Linux.
• System performance tuning, User administration and security.
• Scheduling Backups, Monitoring taking failover test of VERITAS Clustered servers.
• Monitoring of Tivoli storage logs for restarting any failed backups or trouble shooting any file permission or stale file handling problems.
• Ability to screen and diagnose client inquiries and problems troubleshoot to clearly understand problems root cause determination , solve problems, use operational documentation runbooks
• Responsible for administering and maintaining Red hat Linux work stations running Apache web server.
• Configured and Adminstered JBOSS 4.2 on Red hat Linux and Solaris Cluster Nodes.
• Installed and configures Weblogic 9.1.
• Installed and Configured VMware ESX 3.5 server and Installed Red Hat Linux servers on top of it.
• Provided eCommerce application support for Java/J2EE based ATG Dynamo and Websphere environments.
• Worked in Data center environment for configuring new Hardware.

Environment: AIX 4.3,5.1,5.2,5.3,Solaris 8/9/10, Red hat Linux 5.x, IBM Blade center Servers HS20, HS21 , Lenovo workstation's D2, D3, D10, D20 , IBM P570, p590, 595MQSeries 5.0

Confidential

Linux Administrator

Responsibilities:

• Administered, maintained Red Hat 3.0, 4.0, 5.0 AS, ES, Troubleshooting Hardware, Operating System Application Network problems and performance issues Deployed latest patches for, Linux and Application servers, Performed Red Hat Linux Kernel Tuning.
• Upgraded AIX 4.3x to AIX 5L v5.1, 5.2, 5.3.
• Installation, Configuration and Administration of AIX 4.3.3, 5.1 HACMP 4.4.
• Configured and administrated LPAR's and DLPAR's.
• Installation configuration and maintenance of Highly Available Cluster Multi Processing HACMP .
• Install and configure DHCP, DNS BIND, MS , web Apache, IIS , mail SMTP, IMAP, POP3 , and file servers on AIX and Linux servers.
• Administered and Maintained IBM servers for several functions including Apache/Tomcat web server, mail server, MySQL database, and firewalls in both development and production.
• Implementation of Samba to help printing and file sharing in the mixed Environment.
• Monitored System Performance of Virtual memory, System events, Swapping, Disk utilization, CPU utilization on AIX Servers.
• Installing and setting up Oracle9i on Linux for the development team.
• Installed Web Logic 8.1 with SP5 Server and configured Domains, Admin and managed servers for Applications to be deployed.
• Daily tasks included dealing with AIX side of SAN. Like troubleshooting Fiber card adapter, replacing Fiber card adapters. Configuring LUN's back.
• Experienced in installing and configuring SRDF on Symmetrix storage array.
• Worked with Linux, EMC SAN, and Network teams to ensure the smooth relocation of the servers.
• Implemented Virtualization using VMware in Linux on HP-DL585.
• Linux kernel, memory upgrades and swaps area. Red hat Linux Kickstart Installation.
• Hardware Maintenance and System Administration of existing RS 6000 running AIX.
• Data Warehousing and System Backup using tar, cpio for local systems and Veritas Netbackup for enterprise wide backup and recovery
• Setup network printers and installed client/server applications. Define/setup network protocols, Network File Services NFS , and Network Information Services NIS in Linux and AIX systems.
• Performing upgrades of OS and applications.
• Diagnosed hardware and software problems and provided solution to them
• Monitored trouble ticket queue to attend user and system calls
• Updated data in inventory management package for Software and Hardware products.
• Worked with DBAs on installation of RDBMS database, restoration and log generation.
• Developed Korn and Bash shell-scripts to automate routine activities.
• Provided support by 24x7 shift rotation basis and pager support.

Environment: Red Hat Linux 3.0,4.0,5.0 AS ES, AIX 4.3,5.1,5.2,5.3, HP-DL585, HACMP 4.2.x,4.3,4.3.1,4.4 , SRDF, Symmetrix,HPUX, Veritas Netbackup 4.5.5, Oracle 9i/10g, Samba, NT/2000 Server, Web Logic 8.1, VMware 2.x, LPAR, DLPAR , SAN, EMC Symmetrix, Tomcat 3.x,4.x,5.x, Apache Server 1.x,2.x, Korn, Bash.

Confidential

System Administrator/ Graduate Assistant UNIX / Linux, Solaris

Responsibilities:

• Installation of Sun E250, E450, Sun E3000,E6900, SunFire v440/v480/v490 with Solaris 8/9.
• Upgraded/Migrated Solaris 7 to Solaris 8 on Sun servers and workstations.
• Configured Winbind on all Linux workstations which enables all the Linux users to be authenticated on Microsoft Windows 2000 Active Directory Server.
• Monitor T1, ISDN, 56k Modem, Router connectivity and all main servers' activity on a continuous basis.
• Used RPMs to install, update, verify, query and erase packages from Linux Servers.
• Authorized Solaris users/groups to access various applications and troubleshot various user problems using management tools.
• Maintained maximum uptime and maximum performance capacity for Enterprise Production, QA, and UAT/Staging.
• Incident management for Unix Servers Solaris, Linux and AIX .
• Involved in migration AIX servers from 5.2 to 5.3.
• AIX systems administration and Disk Management using SMIT
• Primary responsibility includes building and supporting Solaris/ Red hat Linux 3, 4 servers.
• Extensive experience in installing, integrating, tuning, and troubleshooting Apache, Tomcat WebSphere and Weblogic application server.
• Installation and configuration VERITAS Net Backup on Sun Severs and performing Backup using VERITAS Net Backup.
• Sudo administration and Redhat Linux package administration using RPM and YUM.
• Involved in migration of projects from one flavor to another one.
• Worked on SAN using Tivoli Storage Manager in allocating filesystems to the end users and for managing storage.
• Involved in development, user acceptance, and performance testing, production disaster recovery server.
• Worked in Data center environment for racking servers and configuring new Hardware.
• Worked with other IT teams, customers users , and other managers in helping build and implement systems and standards.

Environment: IBM AIX 4.3.3, 5.1, 5.2, Solaris 8/9/10, Red Hat Linux 4/5, Sun Enterprise Servers, SUN FIRE 6800/E6500/E4500, Sun Sparc1000, IBM RS/6000, Disk Suite.

Confidential

Linux Admin

Responsibilities:

• Configured IBM RS 6000 for production, staging and test environments.
• Installation and configuration of Red Hat Linux Sun Solaris, NT servers
• Installation of patches, security fixes, e-fixes, packages on AIX, Sun Solaris, Linux and Windows NT/2000 Servers.
• Update latest patches and upgrade all applications to the latest versions.
• Configuring Windows 95, 98 and NT workstations in NT domains
• Setup LAN consisting of ten RS-6000 Servers running AIX 4.3, 5.0, 5.1, and five Solaris Servers.
• Maintained the local Apache web server running on a Solaris server.
• Supporting the network on connectivity issues relating to TCP/IP, IPX, and AppleTalk.
• System Administration and engineering of Windows NT 2000, Active Directory Administration.
• Administering user accounts: Adding users, user-groups, removing users groups and changing user environments.
• Migrated database applications from Windows 2000 Server to Linux server.
• The primary responsibilities of the job include monitoring all the Windows NT servers verify
• Everything in sync and at optimum performance and take proactive measures to reduce the Downtime.
• Troubleshooting of DNS and DHCP related problems.

Environment: Red Hat Linux 3.0, IBM AIX 4.3.3, SUN Solaris 2.6, NT/2000, MS Operating System, DHCP, DNS, Apache, User Management, Network Management