SUMMARY

• Over 8+ years of Strong Experience in LINUX/UNIX Administration, Shell Scripting with expertise in Red - hatLinux3, 4 and 5, Solaris 8, 9 and 10. HP-UX 11.i, AIX 5.1, 5.3 and 6.1, Windows 2003, WebLogic, WebSphere JAVA, J2EE Applications and SQL.
• Strong in troubleshooting, monitoring, training and 24/7 production support in mission critical environments Worked with systems support team to define, architect and maintain highly available production systems.
• Expertise in Installation, Configuration, Integration, Tuning, Backup, Crash recovery, Upgrades, Patching, Monitoring System Performance, System and Network Security and Troubleshooting of Unix Servers.
• Experience in implementing and monitoring High Availability environment using VERITAS Cluster Server, Sun Cluster, REDHAT Cluster, HP Service Guard and HACMP.
• Configured and used Jumpstart, Kickstart, Ignite and NIM to install OS.
• Worked on Solaris 10 Container Technology. Created and maintained local zones.
• StrongSASscript, SQL andLinuxscript experience.
• Experienced with the installation, configuration and volume/File system management using VERITAS Volume Manager (VXVM), Logical Volume Manager (LVM) and Solstice Disk Suite (Solaris Volume Manager).
• Experience in creating physical volume, logical volume, volume groups using LVM's inLinux/AIX, HP-UX (ITANIUM and PA-RISC) and SVM, GFS (global file system) and ZFS in Solaris.
• Proficient in Networking, configuring TCP/IP, DNS, NFS, NIS, NIS+, SAMBA, LDAP, SSH, SSL, SFTP, SMTP, SNMP.
• Experienced in working with Storage Area Network (SAN), EMC CLARIION CX, EMC DMX, EMC Mirror View, HP storage and Hitachi data storage.
• Proficient with JBOSS Installation, Java EE architecture, JBOSS and Architecture Administration of JBOSS 5x,6x.
• Experience in creating, maintaining and monitoring user accounts, groups,ACLS, profiles, security, rights, disk space and processes.
• Experience in installation, configuration and administration of WebLogic and Web sphere Servers. Proficient in Installation, Configuration, Support & Maintenance of various Sun SPARC Enterprise hardware's and REDHAT5.xLinuxServers located at Remote Locations. Deployment of Application Software (E-Com/J2EE, B2B, B2C, Oracle, SQL Server, ERP (SAP, Oracle Apps, People soft))
• Knowledge on migration projects and capacity management software.
• Knowledge on SAN of EMC Symmetric, CLARIION CX300 Storage Arrays and Dell EqualLogic storage.
• Experience of working in Data centers with 24x7 Production and On-Call Environments.
• Hands on experience in configuration management systems like Puppet, Cobbler and Blade logic.

TECHNICAL SKILLS

Operating Systems: Linux(RHEL, Ubuntu, SLES), FreeBSD, HP-UX, Open Solaris, AIX, MS Windows Server 2003, 2008, 2012.

Network Protocols: TCP/IP DNS, DHCP, LDAP, FTP, VPN, VTP (VLAN), SNMP, SMTP, IPv4, IPv6, RIPv2, OSPF, BGP, EIGRP, Frame Relay.

Scripting: Shell (BASH), Pearl, Python.

Programming: Java, C/C++, VB.

Virtualization: VMware, KVM, LDOM (Sun's virtualization technology).

Clusters: Red Hat Cluster, VCS and Conga

Database: Oracle, SQL Server, MySQL.

Languages: Power CTL,Power shell

PROFESSIONAL EXPERIENCE

Confidential, Atlanta, GA

Sr. Linux/Unix Administrator

Responsibilities:

• Installation, Maintenance, Administration and troubleshooting ofLinux, Sun Solaris, AIX, HP-UX systems.
• Performed automated installations of Operating System using Jumpstart for Solaris and KICKSTART for Linux and MacOSX as requested
• As a Solaris administrator primary responsibility includes building of new servers which includes rack mounting, installation of OS, configuring of various OS-native and third party tools, securing of OS, installing & configuring, job scheduling.
• Strong knowledge onLINUXand SHELL SCRIPTING, Worked as BASESASprogrammer
• Red HatKVM-based virtualization and Involved in Server sizing and identifying, recommending optimal server hardware based on User requirements.
• Led-in-house team tasked with reducing virtual server deployment time. Implemented Jenkins andPuppettools in order to exceed the reduction expectations
• Monitored the systems CPU, memory, IDE/SCSIdisks, disk controllers, RAID, RAID controllers, file systems, and network parameters using the tools NAGIOS system-monitoring tool and BMC performance management tools.
• Setup modules inPuppetto automate system configurations.
• Extensive experience in creating and configuring RAID in Redhat-Linuxwhile Implementing Disk Quotas and ManagingACLsper user and groups as per company requirement.
• Use ofPower CLIto move and retain DRS and Resource pool information to new ESX 5x and 6x clusters
• Access the command line locally via SSH, understandsLinuxfile system structure and files management, understand expressions, pipeline and redirection, and manage users and groups. Manage virtual machines withKVM.
• Analyzing and Handling Hardware problems/failures like Memory, Disk's, CPU's, Control Board,,SCSIInterfaces etc.
• Created and monitored user account, groups,ACLS, profiles.
• Provided virtualization support using Red Hat'sKVMplatform to manage virtual hosts.
• Converting all of daily usage to just Power shell andPower CLI.
• Managing systems routine backup, scheduling jobs like disabling and enabling CRON jobs, enabling system logging, network logging of servers for maintenance, performance tuning, testing.
• Designing Firewall rules for new servers to enable communication with application, Oracle 10g servers.

Environment: Red-HatLinuxEnterprise servers (HP PROLIANT DL 585, BL 465/485, ML Series), Solaris 8,9,10, AIX 5.3, 6.1, SAN (Net app), Puppet, VERITAS Cluster Server 5.0, Windows 2003 server, Shell programming, JBOSS 4.2, JDK 1.5,1.6, VMware Virtual Client 3.5

Confidential, Pittsburgh, PL

Linux Admin

Responsibilities:

• Designed, supported, and maintained Oracle Real Application Clusters supporting business critical applications on HP ProLiant BL465/BL685 & Integrity Itanium2 platforms on RHEL 4 & 5 in JEE environment.
• Performed automation on vSphere and VCLOUD environment using VMwarePower CLI
• Experience in working with client server (Windows andLinux) environments to perform activities after implementations like start, stop and checking status for metadata, object spawner, analytics platform, grid monitor service and process manager forSASapplications likeSASMA, MO &MOM.
• Install all virtual machine on Mac OSX as requested and insure resource sharing
• Implemented automation tools such asPuppet, Chef.
• Automated routine jobs by developingKORN, Perl and Bash shell-scripts
• Wrote a menu based script to shut down a datacenter in minutes rather than •Puppetinstallation and configuration.
• Implemented Dual VIO with Link aggregation and used integrated virtual device, Virtualscsidisk through SAN as root disks to VIO-Clients and Fiber card virtualization using NPIV for application Vg. Implemented MPIO and Power path in VIO environment.
• Deployment of VMwarePower CLItools for automation of vSphere and VCENTER administration.
• Configured a local mirror repository server and managed node/clients configuration changes through puppetdeployment.
• Patch management and upgrading servers for Red Hat on Satellite 6.1 and CentOS servers through Foremanpuppet, as per the monthly dev. and prod. patching cycles.
• Worked with DBAs on installation of Oracle database, RDBMS database, restoration and log generation. Perform security patching ofLinuxservers.
• Experience in software and hardware enhancements. Hands-on system administration support, system maintenance and operations support. Expertise in Installation, Configuration, Integration, Tuning, Backup, Crash recovery, Upgrades, Patching, Monitoring System Performance, System and Network Security and Troubleshooting ofLinux/Unix Servers.
• Experience withSASto create operational and executive reports from our various data stores and data warehouse.
• Backup jobs, housekeeping, database, proprietary jobs using CRON, EMC legato Networker and BMC Control-M troubleshooting daily job problems.

Environment: Red Hat EnterpriseLinux4.x, 5.x, Ubuntu, Centos, Sun Solaris 8,9,10, VERITAS Cluster Server, Veritas Volume Manager, SLURM, Oracle 11G, HP UX, HP Blade, IBM AIX, HP ProLiant DL 385, 585 WebLogic, Oracle RAC/ASM, MS Windows 2008 server.

Confidential, New York, NY

System Administrator

Responsibilities:

• Installation and configuring of SUN Solaris andLinuxservers.
• Involved in Building and configuring Solaris 9/10 using Jump start server and Red HatLinux Servers using Kick Start server as required for the project. Maintained maximum uptime and maximum performance capacity for Enterprise Production, QA, and UAT/Staging.
• Installed and configured Solaris 10 servers with Zones and containers with Sun ZFS.
• Primary responsibility includes building and supporting Solaris/ REDHATLinux3,4 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 Web logic application server.
• Implemented SUDO, SSH and other security tools and implemented SOX (Sarbanes Oxley) security compliance.
• Cluster Building and Maintenance,VCS/SC, Oracle RAC run in Solaris and REDHAT
• Extensive use of Veritas Volume Manager for Disk management, file system management on Sun Solaris environment.
• Installation and configuration Veritas NetBackup on Sun Severs and performing Backup using Veritas Net Backup.
• Expertise inLinuxbackup/restore with 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.
• Regular disk management like adding / replacing hot swappable drives on existing servers/workstations, partitioning according to requirements, creating new file systems or growing existing one over the hard drives and managing file systems.

Environment: Solaris 9/10, Red HatLinux4/5, BMC Tools, NAGIOS, Veritas NetBackup, KORN Shell, Bash Scripting, Veritas Volume Manager, web servers, LDAP directory, Active Directory, BEA Web logic servers, SAN Switches, Apache, Tomcat WebSphere, Web logic application server.

Confidential, Bowie, ML

Unix Administrator

Responsibilities:

• Installation and administration of RHEL 4.0/5.0 and SUSE 10.x.
• Writing scripts for systems using Bash andKornshell
• Configured kick-start 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 send mail.
• Most of these tasks are performed using nativeKORNShell and Perl scripts system resources from one partition to another partition
• 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 YCENTER operations Management.
• Worked with project manager and auditing teams to implement PCI compliance.
• 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.

Environment: SUN Servers (6500, 4500, 420, Ultra 2 Servers), Solaris 2.6/2.7/8, Veritas Net Backup, Veritas Volume Manager, Samba, NFS, NIS, LVM,Linux, Shell Programming.

Confidential

Systems Administrator

Responsibilities:

• Installation, Configuration, Up gradation and administration of Sun Solaris, REDHATLinux.
• Jumpstart & Kick-start OS integration, DDNS, DHCP, SMTP, Samba, NFS, FTP, SSH, LDAP integration.
• Network traffic control, IPSEC, Quos, VLAN, Proxy, Radius integration on Cisco Hardware via Red HatLinuxSoftware.
• Responsible for configuring and managing Squid server inLinux.
• 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.
• Trouble shooting 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 that 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.

Confidential

System Admin

Responsibilities:

• Installation and configuration of Red Hat Linux, Solaris, Fedora and CentOS on new server builds as well as during the upgrade situations.
• Experience in installation and configuration of a monitoring tool, Nagios and ZABBIX.
• Remotely coping files using SFTP, FTP, SCP, WINSCP, and FILEZILLA.
• Experienced in tasks like managing User Accounts and Groups, managing Disks and Filesystems.
• Install and configure Instruction Detection System (IDS) like Tripwire, Snort, and Lids.
• Configuring & monitoring DHCP server.
• Taking backup using tar and recovering during the data loss.
• Experience in writing bash scripts for job automation.
• Documenting the installation of third-party software's.
• Configuring printers to the Solaris andLinuxservers and also installing third party software’s
• Maintaining relations with project managers, DBA's, Developers, Application support teams and operational support teams to facilitate effective project deployment.
• Manage system installation, troubleshooting, maintenance, performance tuning, managing storage resources, network configuration to fit application and database requirements.
• Responsible for modifying and optimizing backup schedules and developing shell scripts for it.
• Performed regular installation of patches using RPM and YUM.
• Maintained LVM, VXVM and SVM filesystems along with NFS.

Environment: Linux(Red Hat Enterprise, CentOS), Windows 2000/NT, HP, IBM, Solaris, Oracle 8i, Cisco routers/switches, Dell 6400, 1250, Sun E450, E250.