SUMMARY

• Over Nine years of IT experience as a Systems Administrator and Production Support inLinux / UNIX Solaris, AIX, Windows environment.
• 3 + years in the area of Virtualization with VMware ESX/ESXi 3.5, 4.0 and 5.0 servers and vCenter server.
• Experience in Implementingand SupportingHigh Availability Cluster environments usingSun Cluster, Veritas ClusterandLinux Cluster services.
• Strong technical related to system and application configuration and administration duties in an enterprise class data center environment
• Deployment of various types of applications onto Sparc and Intel hardware and Sun Solaris, Windows Server and Red Hat Linux operating systems
• Filesystem management on RedHat Linux and Solaris servers usingLVM/SVM/ZFSutilities.
• Experience in compiling and tuning the LinuxKernelon database servers.
• Competency with operating at the Linux/Unix command line
• Ability to edit configuration files (XML, etc.)
• Administration of MS Windows servers to include stopping, starting and configuration of services and troubleshooting issues with services.
• Linux/Unix shell scripting (bash, csh, ksh)
• Build and troubleshooting experience With VMware ESX Server and Virtual center server.
• Installing, upgrading and configuring SUN Solaris 7, 8, 9 and 10 on Sun Servers Using Jumpstart Servers and Interactive Installation.
• Creating and maintaining user accounts, profiles, security rights, disk space and process monitoring
• Install and configuration of Web hosting administration such as HTTP, FTP, SSH, & RSH
• Worked on various Sun Entry level servers like Sun Fire V240, V245, V280, V440, Midrange servers like Sun Fire V480, V880, V490 and has also worked on Sun Fire 6800.
• Worked on IBM blade servers HS12 and H22.
• Managed packages usingRPM/YUMonRedhat Linuxand maintaining patchingon Solaris servers.
• Strong understanding of VMware Networking concepts like creation of Vswitches, different types of port groups, Nic Teaming and VLAN.
• Installing VMware tools and Upgrading VMware tools on Windows Machines and Linux Machines.
• Used Citrix virtual environment, Vsphere, and Cobbler to build Redhat Virtual servers
• Expert in Installing, configuring and maintaining DNS, NIS, NIS+, NFS, DHCP.
• Work with other teams/departments to provide support of server - side applications in the production environment and to ensure proper preparation and coordination of changes.
• Worked on various projects for central authentication of Unix Servers (Solaris, AIX, Redhat and Suse) through LDAP and Active Directory.
• Implemented RAID levels 0, 1, 0+1, 1+0 and Raid 5 on Solaris and Redhat Servers using Veritas storagefoundation.
• Having experience in implementing &maintaining Unix/Linux security products such asEturst,LDAP(UnixPlatform Security).
• Good experience on Oracle 10g databases. Created databases & connected to databases using ODBC
• Extensively supported Red Hat Linux and Windows NT environments along with Solaris.
• Expertise in supporting enterprise based distributed applications over a wide range of operating environments across several web farms on a 24/7 rotation basis for high volume, secure transactions and Web services
• Good in Planning, documenting and support high availability, data replication, business persistence, fail-over, fail-back and using Veritas Cluster Server 3.5 in SAN environment.
• Knowledge of networking (TCP/IP, Ethernet), FTP, NFS, NIS, DNS, DHCP and RAID levels.
• Expertise in Veritas Volume manager (VxVM), Creating new file systems, mounting file systems and unmounting file systems
• Implemented Backup & Recovery strategies using Legato Networker 7.x / Veritas Netbackup 4.5 /5.1, Avamar and TSM.
• Experience with Solaris ZFS and Zoning in Solaris10( Creating zones and maintaining existing Zones)
• Good in Installing, configuring and maintaining Veritas Volume Manager, Veritas Net backup, Veritas Cluster server & Sun-Cluster server
• Efficiency in installing, configuring and implementing the RAID Technologies using various tools like Veritas volume manager, Solaris volume manager & Solstice disk suite
• Expert in Installing, configuring and maintaining apache/tomcat, samba & SMTP send mail, Web Sphere Application Servers.
• Experience in using Veritas Net Backup, Proficient in System Backup and Recovery from tapes using ufsdump, ufsrestore, tar and cpio, File system administration
• Expert in writing Shell scripting using Ksh/Csh/bash/Sed/Awk to ease administration tasks
• Excellent skills in analyzing, designing, implementing and system integration, Knowledge on Switches, Routers, & Firewalls.

TECHNICAL SKILLS

Operating System: Solaris 10/9/8/2.x, AIX 4.3/5.1/5.2/5.3 RHEL 3/4/5/6, Windows NT 4.0/2000/2003/ XP

Hardware: Sun Fire 280R/V 480/4800/3800/12 K Server, Sun Enterprise 4500/6500/5000/450/420 R/250 Server, Ultra Enterprise 2/1Servers, SPARC server 1000, SPARC server 20 Enterprise Servers, SPARC server 1000/20, SPARCstation 10, Sun Sparc Ultra 1,5,10, HP-9000, K,L,Nseries, IBM RS/6000 & PSeries, DEC DS20, ES40,IBM IBM blade servers HS12&HS22,x3650,x3550

Web /Application Server: Tomcat, Apache, ATG 5.0/6.3, IBM WAS, JBoss

Cluster server: Veritas Cluster, Sun cluster

Scripting Languages: Born, Bash, KSH & Perl, SED

Programming Languages: C, C++, Java & J2EE, Asp.net

Firewall: Symantec, Cisco Checkpoint

Databases: Oracle, DB2/UDB, AS/400

Storage: EMC Clariion CX4, NetApp Filers 4.0Hitachi 7K1000, Sun A1000 / D1000/A52100/ D130.

Tools: and Utilities Puppet, Solstice Disk Suite, Samba, and RAID 5/0/1, Veritas Foundation.Veritas Volume Manager, Veritas File system.

Backup: VERITAS Net backup 4.5 / 5.0 / 6.0, Legato Networker 7.x,Avamar, TSM.

Virtualization: VMWare, Vsphere, KVM, Cloud/VPS.

PROFESSIONAL EXPERIENCE

Confidential - NY

Linux/Unix Administrator

Responsibilities:

• Involved in OS Remediation for more than 6000 Linux and Solaris
• 30% Sun Solaris and 70% Linux server environment.
• Perform hardware maintenance and upgrades including patch installation, software installation including java, perl and memory upgrades.
• Plan, install, tests, and maintain new and existing servers, and application infrastructure in a 24x7x365 mission critical environment.
• Troubleshoot hardware, software application and data center assets, perform root cause analysis, identify and isolate technical issues to quickly and effectively resolve technical issues and provide timely status and progress reporting.
• Red Hat Linux Administration
• Managed migration and implementation projects.
• Work closely with developers to enhance performance; schedule job runs and database access.
• Worked with vendors to resolve critical production problems.
• Worked closely with buyers, managers on many implementations.
• Involved in hardware and software purchasing decisions.
• Administered over 600 nightly, weekly and hourly incoming and outgoing RETEK point of sale jobs written in C & Shell.
• 24/7 Corporate and store support on various server, application and database related issues.
• Printer and Wavelink client administration.
• Managed various hardware rollouts.
• Installed, configured and administered ftp server.
• Managed various 3rd party solutions and interfaces.
• Installed configured and administered proxy server.
• Iplanet, Tomcat, Apache, IBM Websphere web server installation and administration.
• Created and modified automation scripts as needed.
• Disk Mirroring using Solstice Volume Manager & LVM.
• Administered various tape and disk backup utilities.
• File backup and recovery via tape backup and LiveVault disk backup solution.
• Installation of Solaris 10 and Linux on VMWARE Virtualization Software.
• Worked closely with the network, windows and helpdesk teams to resolve various issues.
• Database creation and administration (Oracle 8.1.7, Oracle 9i, Oracle 10g and 11g) on various platforms.
• Oracle form and report server administration.
• Database backup and recovery included implementing hot backup as well as various export scripts.
• Participated in the Disaster Recovery of site implementation for Unix and Linux systems.
• Managed the migration of a key legacy point of sale system to Oracle 9i and 10G database, 9ias Oracle forms and Solaris 9 environment.

Confidential, Hercules, CA

UNIX / Linux Systems Administrator

Responsibilities:

• Worked on 4000+ server’s environment. Independently, assigned with an owner of 150+ servers. Mainly involved in building new servers, quarterly maintenance like patches, handling cases/ problems escalated by problem management team (tier 2). It’s a vast and best environment in the field of UNIX systems consist of Cluster Environment (both Veritas and Sun Cluster), Volume manager (SVM, VxVM, LVM).
• Installation and administration of RHEL 4.0/5.0/6.0 and Cent OS 5.
• Installation, configuration, administration of Solaris9, 10 on SPARC based servers using Jumpstart, worked on T. M series servers.
• Configured kickstart server and updating/applying patches to the servers using Redhat 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.
• 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 sendmail.
• Creating profiles manifests for new servers, and pushing them to servers using puppet.
• Responsible for maintenance of development tools and utilities and to maintain shell, Perl automation scripts.
• Creating virtual machines using Xen and deploying OS, managing hardware.
• Creating, installing, Weblogic Application servers, deploying WAR, JAR files on them installed on both Linux, Solaris servers.
• Worked with project manager and auditing teams to implement PCI, SOX compliance.
• Jumpstarting Solaris 9, 10 on Sun servers, configuring servers. Configured/Maintained Zones, LDOMs, ZFS file system Sun Solaris 10 Servers.
• Management and monitoring of various services using Service Management Facility and Service Administration.
• Installing, configuring Veritas Netbackup 6.5 on linux, solaris servers, and creating backup polices.
• Designing Firewall rules for new servers to enable communication with application, Oracle 10g servers.
• Working on Volume management, Disk Management, software RAID solutions using VERITAS Volume manager & Solaris Volume Manager. File system Tuning and growing using VERITAS File System (VxFS), coordinated with SAN Team for storage allocation and Disk Dynamic Multi path.
• Worked on resolving production issues and documenting Root Cause Analysis and updating the tickets using BMC Remedy.
• Fine tuning of Servers and configuring networks for optimum performance.
• Organized various meetings with teams as mentioned above for tracking their requirements as inputs to get this done and designed the plan/steps involved and took user approvals.
• Setting up network environments using TCP/IP, NIS, NFS, DNS, SNMP agents, DHCP and Proxy.
• Installation, maintenance and administration of Oracle and Db2 Server on Sun Servers.
• Set up user and group login ID's, printing parameters, network configuration, password, resolving permissions issues, user, and group quota.
• Creating and maintaining user accounts, profiles, security, rights, disk space and process monitoring.
• Created new groups and tested first in development, QA Boxes and then implemented the same in production Boxes.

Confidential, Phoenix, AZ

Unix/Linux System Administrator

Responsibilities:

• Installed, upgraded, Mirrored and configured RHEL 4.x and Sun Solaris 10/9.0/8.0 using Kickstart, Jumpstart Installation respectively.
• Upgraded Solaris 8 to 9 and 9 to 10 on Sun servers and workstations. Added necessary patches using patchadd utility and scripts.
• Controlled disk operations, disk group operations, volume operations and volume configurations using vxdisk, vxdg, vxassist, vxmake and vxvol in Veritas Volume Manager.
• Configured Printers, Print Server and Print Clients using commands like lp, lpstat, lpadmin, lpfilter&GUI.
• Configured and administered Samba to provide file services, resolved various inter-operability issues between Windows NT&Solaris platforms.
• Installation, Setup and Configuration of WebLogic 9.0/8.1 application server.
• Deployed Portlets manually using Admin Console.
• Disk Management using different RIAD technologies in Solaris and Linux using Veritas Volume Manager and LVM.
• Veritas Cluster Installation and Configuration along with Resources and Service Groups Configuration in VCS.
• Configuration and administration of DNS, LDAP, NFS, NIS and Samba inRedHat Linux, and Sun Solaris.
• Network trouble shooting using ndd, traceroute, netstat, ifconfig and snoop.
• Administered and Managed Network Applications and Services like NFS with Hummingbird connectivity V7.1.
• Involved in Configuring DHCP server and giving IP addressing dynamically.
• FTP Server configuration in Linux and done kernel tuning on Linux for play out software.
• Involved in creating new users, groups and setup their home directories and appropriate access restrictions to software and directories & files using access modes.
• Written Shell scripts to run Batch Jobs on Sun Solaris and RedHat Linux servers.
• Provided system performance reporting on a regular basis along with keeping all software at current version levels, and maintaining a log of changes for tracking.

Confidential, Jersey City, NJ

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 Redhat 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 crontab and autosys.
• Installation of packages, patch management, volume managment 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 sendmail.
• Responsible for maintenance of development tools and utilities and to maintain shell, Perl automation Scripts.
• Expertise in VMware vSphere 3/4/5 version ESXi and vCenter operations Management.
• Worked with project manager and auditing teams to implement PCI compliance.
• Integrating Weblogic 10.x and Apache 2.x and deploying EAR, WAR files in Weblogic Application servers.
• Installed, configured, cloned VMs on VMware 5, Vsphere 4.0, configured ESX hosts, adding datastores to ESX hosts, creating vswitches, templates, migrating VMs across ESX hosts.
• Designing Firewall rules for new servers to enable communication with application, Oracle 10g servers.
• Working on Volume management, Disk Management, software RAID solutions using VERITAS Volume manager & Solaris Volume Manager. File system Tuning and growing using VERITAS File System (VxFS), coordinated with SAN Team for storage allocation and Disk Dynamic Multi path.
• Fine tuning of Servers and configuring networks for optimum performance.
• Organized various meetings with teams as mentioned above for tracking their requirements as inputs to get this done and designed the plan/steps involved and took user approvals.
• Installing, configuring Nagios on Linux, Solaris clients.
• Setting up network environments using TCP/IP, NIS, NFS, DNS, SNMP agents, DHCP and Proxy.
• Installation, maintenance and administration of Oracle and Db2 Server on Sun Servers.
• Set up user and group login ID's, printing parameters, network configuration, password, resolving permissions issues, user and group quota.
• As a member of the team, monitored the VERITAS Cluster Server 4.1 in SAN Environment.
• Creating and maintaining user accounts, profiles, security, rights, disk space and process monitoring.
• Created new groups and tested first in development, QA Boxes and then implemented the same in production Boxes.