SUMMARY

• Around 9 years of professional IT experience as a Unix/Solaris/Linux System Engineer.
• Expertise in Red Hat Linux Enterprise 4, 5, 6Solaris 8, 9, 10,UNIX, Networking, Programming (Shell and Perl scripting), Databases, Software and Hardware.
• Proven expertise in VERITAS Volume Manager, VERITAS Cluster Server and VERITASFoundation Suite.
• Experience in installing, configuration and maintenance of Oracle RAC on Solaris and Red Hat Enterprise Linux.
• Experience includes installation, configuration and maintenance of Applications on Solaris, Red Hat Enterprise Linux and different flavors of UNIX.
• Maintain Mission Critical Enterprise Applications in 24X7 production environment
• Hands on experience in administration and maintenance of application services like DNS, Mail, HTTP, Apache Tomcat, Squid, DHCP, SMTP, FTP, NIS, NIS+, Auto FS and NFS.
• Shell Scripting to automate the system administration tasks and performance tuning.
• Good understanding wif web services such as HTML, XML, and JBoss.
• Implemented and enhanced scripts using Korn, C shell, Bash and Perl Scripting.
• Administering and providing support for end - users, developers, software installation and trouble-shooting.
• Performed kernel tuning, performance tuning for different web and java related applications on RHEL and Solaris Servers
• Coordinated wif SAN Team for storage allocation and Disk Dynamic Multi pathing. Worked on various SAN Products like EMC VMAX, DMX, Symmetrix, and Clariion.
• Exposure to VERITAS NetBackup and disaster recovery planning.
• Experience in installation, configuration and administration of Kickstart and Jumpstart servers.
• Experience wif Software and Hardware based RAID 0+1, RAID 1+0 and RAID 5 on IBM and HP servers.
• Provided 24 hour production support dat involved maintenance of disk failures, system failures, application software failures, etc, in the environment.
• TEMPEffective communication skills developed through continuous interaction wif global clients and management.
• Excellent ability to handle significant workload wif experience in managing multiple projects concurrently in a fast pace environment.

TECHNICAL SKILLS

Networking: NFS, AutoFS, NIS, NIS+, DNS, DHCP, LAN, WAN

OS: Sun Solaris (8/9/10) SPARC/x86, Red Hat Linux 4 /5, Windows NT Enterprise Edition 4.0, Windows 2000 Professional, Windows 95/98/XP, MS-DOS 6.22.

Databases: Oracle11g RAC, 10g RAC, 9i RAC, Sybase, MySQL, DB2

Hardware: Sun Fire 25K,15K, 6800, 4800, 2900, 890, 490, 480R, 880, 240, T2000, E4900, E2900, Sun Enterprise 10K, 6500, 6000, T5220, T5240, M5000, M3000, 3500, 450, 420R, 250, Sparc server 1000, Sparc station 20,10,5, Ultra 60, 2,1DELL PE2850, 2950, R710, R810, R910, HPC 200/240 workstations, IBM Xseries X3650/3850.

Utility Packages: VERITAS Volume manager (v4.x, 5.x) VXVM, Solaris Volume Manager, VERITAS Cluster Server (v4.x/5.x/6.x) VCS, VERITAS File system VXFS (v4.x, 5.x) Admintool, Remote Admin.

Protocol: TCP/IP, IPX/SPX, FTP, HTTP, ARP, RARP, UDP, SNMP, SMTP, Telnet, and Routing Protocols.

Security: Secure Shells, SSH, SCP, SUDO

Languages: shell Programming, Perl, PHP

Virtualization Tools: VMWARE

Webservers: Apache, WebLogic, Websphere, Tomcat, Jboss

Migration Tools: Tar, Rsync, EMC Open Migrator

Monitoring Tools: Nagios, Tivoli monitoring

PROFESSIONAL EXPERIENCE

Confidential, Richardson, TX

Unix/Linux System Administrator

Responsibilities:

• Installation, configuration and Operating System upgrade on, Red Hat Linux and Sun Solaris.
• Administrated server consolidation program through use of VMware ESX server and VMware Virtual Center
• Gathered VM requirements from the Performance Team, placed reservations and deployed Virtual Servers in Test and Production Environments.
• Experience in VMWARE ESXi 4/5 and vSphere and managed VM resource upgrades, Cold migration of VM from once vCenter to other.
• Handled and documented Cold Migration issues and IP, SAN, Network bandwidth and VLAN constraints.
• Performance Management & Tuning of RHEL.
• Monitoring system resources, logs, disk usage, scheduling backups and restore
• Set up Quotas for the user accounts & limiting the disk space usage.
• Configuring SUDO and granting root permission to users for performing certain activities.
• Upgrading RHEL 5.0 to RHEL 5.5 using live upgrade and manual upgrade.
• Installed and Configured Web logic 8.x, 9.x on Java Applications.
• Experience managing various file systems using LVM and SVM and also configured file systems through network using NFS, NAS, SAN methodologies and installed RAID devices.
• Designed and configured large AIX systems (p6, p5), Building VIO Servers LPRAS, VIO Client LPARS installed VIOS 2.3, AIX6.1/5.3 using HMC V6 and installed/backup VIOS, BOS using NIM.
• Experience in working wif puppet, git and chef.
• Installed and maintained OpenStack on KVM for cloud applications.
• Extensive use of LVM, creating Volume Groups, Logical volumes, and disk mirroring. Performance Management & Tuning of AIX 5.2/5.3 UNIX Kernel.
• Hands on experience on various cloud computing products such as Amazon Web Services EC2 and VPC.
• Removing Virtual Resource from the VIO Server and Decommissioning the VIO Client LPARS.
• Implemented TSM backup Solution across the environment to backup the rootvg for all AIX servers.
• Perform User Account management, data backups, and users’ logon support.
• Develop Shell scripts (Korn) for automating the batch jobs.
• Responsible for the upgrades to AIX and software packages and maintained them in accordance wif established policies, procedures and service level agreements.
• Installed and Configure DNS, Websphere, DB2 Database and Tivoli storage manager.
• Work wif DBAs on installation of DB2, restoration and performance tuning.
• Patched different software using Redhat Package Manager and YUM.
• Attend team meetings, change control meetings to update installation progress and upcoming changes in environment.

Environment: Red Hat Linux 5, VMware ESX, VERITAS NetBackup, WebLogic, Oracle 10g, Tivoli Storage Manager(TSM), BMC Tools, NAGIOS, HPSM, JIRA

Confidential, Chicago, IL

Unix/Linux System Administrator

Responsibilities:

• Installation, configuration, administration of RHEL 5, 6 and Solaris 9, 10 using Kickstart, Jumpstart, custom configuration like package management, volume management of servers.
• Applied appropriate support packages/patches to maintain system integrity.
• Configured volume groups and logical volumes, extended logical volumes for file system growth needs using Logical Volume Manager (LVM) commands.
• Creating, installing and configuring Zones, LDOMs in Sun Solaris 10.
• Creating virtual machines, cloning, creating templates, adding storage, installing Redhat, performing vmotion, adding ESX hosts on Vsphere 4.0.
• Creating file system, exporting, importing file systems, tuning, growing, shrinking using Veritas File system 5.x.
• Troubleshooting and administering High Availability using VERITAS Cluster Server on various business critical database & application production servers. configuring NAS and NFS mount points.
• Performed capacity analysis, monitored and controlled disk space usage on systems.
• Worked on creating profiles in Puppet, manifests, modules and pushing them across all the servers.
• Adding Oracle ASM disk to the server. Creating managing volumes using LVM.
• Administration for multiple sun hardware, dis involves creating domains, adding/deleting system components.
• Installing, configuring Veritas NetBackup 6.5 on Solaris, Red hat servers, creating polices, scheduling jobs.
• Installed Web Logic 10.3 and configured Domains, Admin and managed servers for Applications to be deployed.
• Extensively used Active Directory Server Console for managing the entries.
• Monitoring system resources, logs, disk usage, scheduling backups and restore.
• Configuring SUDO and granting root permission to users for performing certain activities.
• Extensively worked on hard disk mirroring and stripe wif parity using RAID controllers.
• Involved in Server sizing and identifying, recommending optimal server hardware based on user requirements.
• Created Zettabyte file system (ZFS) in Solaris 10. Created zpools. Exported ZFS from local zones to local zones.
• Build LPAR system and Installed AIX 5.3 and 6.1 on LPAR using NIM Power 4, 5 and 6 systems and Upgraded Maintenance level as well.
• Installed and verified dat all AIX/Linux patches or updates are applied to the servers.
• Preparing servers for Oracle RAC installation which includes tuning the kernel, agent installation, adding NAS storage.
• Worked on resolving production issues and documenting Root Cause Analysis and updating the tickets using BMC Remedy.
• Designing Firewall rules for new servers to enable communication wif application, Oracle 10g servers.

Environment: RHEL 5.x,6.x, Red-Hat Linux Enterprise servers (HP Proliant DL 585, BL 465/485,ML Series), Solaris 8,9,10, AIX 5.3, 6.1, SAN (Netapp), BladeLogic, Veritas Cluster Server 5.0, Windows 2003 server, Shell programming, Jboss 4.2, JDK 1.5,1.6,, VMware Virtual Client 3.5, VMware Infrastructure 3.5.

Confidential, Los Angeles, CA

Unix/Linux System Administrator

Responsibilities:

• Prepare the design layout diagram for UNIX environment for all Production application.
• Daily DevOps task for puppet, scripting and Application performance.
• Prepare environment setup guides wif Architectural design for Application.
• Worked in Stability Project for fixing reoccurring issues like, Serv1 and Serv2.
• VMWARE Server wise Capacity analysis and planning for above applications.
• Application Server Build and configuration as per environment setup Guide.
• Working as Sys Admin / Engineer, tuning exiting environment (kernel and FS tuning), configuration and production support for Sev 1,Sen 2 Tickets.
• Writing shell script for daily and routine jobs.
• Build new VMS as per project requirement ( like web servers and DB servers on Linux VM )
• Install, Configuration and support to Apache web servers.
• Install and configure puppet for client node and add them to respective groups for future management.
• Install, configure and monitor performance of UNIX Linux servers using SCOM monitoring software.
• VERITAS Netbackup configuration and monitoring of Daily weekly incremental and full backups.
• Setup authentication wif winbind-AD and fix the issues related to AD login from Linux servers.
• Worked on Sudo file centralization using LDAP.
• Co-ordinated wif web team in installation, configuration and troubleshoot issues wif WebSphere Application Server on Linux.
• Troubleshooting and analysis of hardware and software failures for various UNIX servers (core dump and log file analysis).
• Extensively worked wif the LAN/WAN, firewalls and routing for Internet and Intranet connectivity using different protocols like TCP/IP, UDP, DHCP, HTTP/s, FTP, SMTP, SOAP & SSH.
• Maintained/Administrated the current storage environments (SAN, NAS, DAS, etc) as well as make recommendation for optimal solutions to support business initiatives.
• Supporting the interface needs of new development initiatives.
• Wrote UNIX Shell, K-shell, Perl, bash and python scripts to perform admin tasks.
• Extensively worked wif Remedy ticketing system and provided 24/7 on call support for production.
• Worked on POC for LDAP authentication.
• Help developer, tester and UNIX team to troubleshoot UNIX and application related issues

Environment: 5/6/7 and Cent OS Linux, VMWARE Vitalization, Shell Scripting.

Confidential, West Haven, CT

Unix/LinuxSystem Administrator

Responsibilities:

• Installation, configuration and Operating System upgrade on, Red Hat Linux and Sun Solaris.
• Administrated server consolidation program through use of VMware ESX server and VMware Virtual Center
• Gathered VM requirements from the Performance Team, placed reservations and deployed Virtual Servers in Test and Production Environments.
• Experience in VMWARE ESXi 4/5 and vSphere and managed VM resource upgrades, Cold migration of VM from once vCenter to other.
• Handled and documented Cold Migration issues and IP, SAN, Network bandwidth and VLAN constraints.
• Performance Management & Tuning of RHEL.
• Monitoring system resources, logs, disk usage, scheduling backups and restore
• Set up Quotas for the user accounts & limiting the disk space usage.
• Configuring SUDO and granting root permission to users for performing certain activities.
• Upgrading RHEL 5.0 to RHEL 5.5 using live upgrade and manual upgrade.
• Installed and Configured Web logic 8.x, 9.x on Java Applications.
• Experience managing various file systems using LVM and SVM and also configured file systems through network using NFS, NAS, SAN methodologies and installed RAID devices.
• Designed and configured large AIX systems (p6, p5), Building VIO Servers LPRAS, VIO Client LPARS installed VIOS 2.3, AIX6.1/5.3 using HMC V6 and installed/backup VIOS, BOS using NIM.
• Experience in working wif puppet, git and chef.
• Installed and maintained OpenStack on KVM for cloud applications.
• Extensive use of LVM, creating Volume Groups, Logical volumes, and disk mirroring. Performance Management & Tuning of AIX 5.2/5.3 UNIX Kernel.
• Hands on experience on various cloud computing products such as Amazon Web Services EC2 and VPC.
• Removing Virtual Resource from the VIO Server and Decommissioning the VIO Client LPARS.
• Implemented TSM backup Solution across the environment to backup the rootvg for all AIX servers.
• Perform User Account management, data backups, and users’ logon support.
• Develop Shell scripts (Korn) for automating the batch jobs.
• Responsible for the upgrades to AIX and software packages and maintained them in accordance wif established policies, procedures and service level agreements.
• Installed and Configure DNS, Websphere, DB2 Database and Tivoli storage manager.
• Work wif DBAs on installation of DB2, restoration and performance tuning.
• Patched different software using Redhat Package Manager and YUM.
• Attend team meetings, change control meetings to update installation progress and upcoming changes in environment.

Environment: Red Hat Linux 5, VMware ESX, VERITAS NetBackup, WebLogic, Oracle 10g, Tivoli Storage Manager(TSM), BMC Tools, NAGIOS, HPSM, JIRA

Confidential

Unix/Linux Administrator

Responsibilities:

• Created Zettabyte file system (ZFS) in Solaris 10. Created zpools. Exported ZFS from local zones to local zones.
• Installation, Maintenance, Administration and troubleshooting of OEL, Linux, Sun Solaris, AIX, HP-UX systems.
• Performed automated installations of Operating System using Jumpstart for Solaris and KickStart for Linux.
• Installation and configured Solaris 10 wif Zones, Containers and Ldoms.
• Extensively worked on hard disk mirroring and stripe wif parity using RAID controllers.
• Involved in Server sizing and identifying, recommending optimal server hardware based on User requirements.
• Installation and configuration of Veritas Storage Foundation Suite::Veritas Volume Manager, Veritas File System, Veritas Cluster Server and Oracle SF RAC.
• Installed the Operating System on Solaris and Linux servers and Blades over the network.
• Built servers according to standards specified as per individual applications
• Built virtualized Linux servers on ESX and Blade servers to host multiple applications on same chassis across different server hosts.
• Set up Linux servers for iSCSI LUN boot instead of using local hard disks
• Configured Sun servers M4000 and M5000 for operational readiness upon OS installation
• Set up Linux servers for LAMP implementations and readiness
• Build LPAR system and Installed AIX 5.3 and 6.1 on LPAR using NIM Power 4, 5 and 6 systems and Upgraded Maintenance level as well.
• Installed and verified dat all AIX/Linux patches or updates are applied to the servers.
• Installing, administering Reheat using Xen, Oracle Virtual Machine based hypervisors.
• RPM and YUM package installations, patch and other server management.
• Managing systems routine backup, scheduling jobs like disabling and enabling cron jobs, enabling system logging, network logging of servers for maintenance, performance tuning, testing.
• Worked on resolving production issues and documenting Root Cause Analysis and updating the tickets using BMC Remedy.
• Designing Firewall rules for new servers to enable communication wif application, Oracle 10g servers.
• Monitored server and application performance & tuning via various stat commands (vmstat, nfsstat, iostat, etc.) and tuned me/O, memory, etc.
• Coordinated wif the Storage, Network and Hardware teams on server provisions (HP Proliant DL385/585 G5, G6 servers, and HP BL 465C G5 blade centers).
• Experienced in Troubleshooting critical hardware and software issues and other day-to-day user trouble tickets.

Environment: RHEL 5.x,6.x, Red-Hat Linux Enterprise servers (HP Proliant DL 585, BL 465/485,ML Series), Solaris 8,9,10, AIX 5.3, 6.1, SAN(Netapp), BladeLogic, Veritas Cluster Server 5.0, Windows 2003 server, Shell programming, Jboss 4.2, JDK 1.5,1.6,, VMware Virtual Client 3.5, VMware Infrastructure 3.5.

Confidential

Linux / Unix Administrator

Responsibilities:

• Installation and administration of RHEL 4.0/5.0 and SUSE 10.x.
• Configured KickStart server and updating/applying patches to the servers using Red hat Satellite server.
• Remote system administration using tools like SSH, Telnet, and Rlogin.
• Planning and implementing system upgrades including hardware, operating system and periodical patch upgrades.
• Installation, configuration and administration of VMware, Solaris Zones, Containers and Ldoms.
• Automation of jobs through confabs and autosys.
• Installation of packages, patch management, volume management on Suse servers using YaST.
• Applied appropriate support packages/patches to maintain system integrity.
• 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 and to maintain shell, Perl automation Scripts.
• Worked wif project manager and auditing teams to implement PCI compliance.
• Build LPAR and DLPAR system and Installed AIX 5.2, 5.3 on LPAR using NIM.
• Installed and configured Virtual me/O Server V1.3.01 wif fixpack8.1.
• Integrating Weblogic10.x and Apache2.x and deploying EAR, WAR files in WebLogic Application servers.
• Management and monitoring of various services using Service Management Facility and Service Administration.
• Designing Firewall rules for new servers to enable communication wif application, Oracle 10g servers.

Environment: Solaris 8,9,10, Red Hat Linux AS/EL 4.0, AIX 5.2, 5.3, Sun E10k, E25K, E4500, Sun Fire V440/880, DMX 3 & DMX4, Site minder, SonicMQ 7.0, VxFS 4.1, VxVM 4.1, SVM.

Confidential

System Administrator

Responsibilities:

• Installation and configuring of SUN Solaris and Linux servers.
• Involved in Building and configuring Solaris 8/9/10 using Jump start.Incident management for Unix Servers (Solaris, Linux).
• Installed and configured Solaris 10 servers wif Zones and containers wif 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 and other security tools and implemented SOX (Sarbanes Oxley) security compliance.
• Extensive use of Veritas Volume Manager for Disk management, file system management on Sun Solaris environment.
• Created Zettabyte 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 performing Backup using Veritas Net Backup.
• Extensive use of Korn shell, Bash for scripting.
• Expertise in Linux backup/restore wif 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.
• Planned, scheduled and Implemented OS patches on both Solaris & Linux boxes as a part of proactive maintenance.
• Worked wif other IT teams, customers (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.

Environment: Solaris 8/9/10, Red Hat Linux 4/5, BMC Tools, NAGIOS, Veritas NetBackup, Korn Shell, Bash Scripting, Veritas Volume Manager, web servers, LDAP directory, Active Directory, BEA Web logic servers, Switches, Apache, Tomcat WebSphere, WebLogic application server, Puppet.

Confidential

System Administrator

Responsibilities:

• Installation, Configuration, up gradation and administration of Sun Solaris, Redhat Linux.
• User account management and support.
• Jumpstart & Kick-start OS integration, DDNS, DHCP, SMTP, Samba, NFS, FTP, SSH, LDAP integration.
• Responsible for configuring and managing Squid server in Linux.
• Configuration and Administration of NIS environment.
• Managing file systems and disk management using Solstice Disk suite.
• Involved in Installing and configuring of NFS.
• Package and patch management on Sun servers.
• Kernel tuning, Writing Shell scripts for system maintenance and file management.
• Worked on Solaris volume manager to create file systems as per user and database requirements.
• Troubleshooting the system and end user issues.
• Responsible for configuring real time backup of web servers.
• Log file was managed for troubleshooting and probable errors.
• Responsible for reviewing all open tickets, resolve and close any existing tickets.
• Document solutions for any issues dat have not been discovered previously.

Environment: Sun Solaris 2.6/7, SUN Ultra Enterprise 6000/450, SUN Ultra 10/5/2/1, Windows NT 4.0, RHEL 3.x.