SUMMARY

• Over 7+ years of IT experience in large - scale enterprise support. Proficient in all aspects of Server computing Infrastructure Management.
• Experience in Installation, configuration, and System Administration with Linux (RHEL 6/5/4), Solaris (10/9/8).
• Experiences in Server build using Jumpstart and Kickstart Process.
• Experience in installing, configuring and maintaining Application Servers like WebSphere and Web Logic, Web Servers like Apache HTTP and Tomcat on UNIX and Linux.
• Experienced in Configuration and Administration of NFS, NIS, Samba and DNS on RHEL, Sun Solaris server environment.
• Worked on Amazon Web Services (AWS) infrastructure with automation and configuration management tools such as Chef and Puppet.
• Install, configure and support Enterprise network/server monitoring tools. (Manage Engine/Site 24x7, Solarwinds, CA,Nagios).
• Set upNagiosmonitoring system.
• Proficient in using all amazon web services like EC2, EBS, IAM, S3, ELB, RDS, VPC, Route 53, Cloud Watch, Cloud Formation etc.
• Defined AWSsecurity groups which acted as virtual firewalls to control the incoming traffic onto one or more AWSEC2 instances
• Experience in installing, configuring the Volume/File system management using VERITAS Volume Manager (VxVM), Logical Volume Manager (LVM), Solaris Volume Manager (SVM) and Veritas File System (VxFS).
• Experience in implementing and monitoring High Availability environment using VERITAS Cluster Server, Sun Cluster, Red Hat Cluster Suite.
• Performing software installation, upgrades/patches/packages, troubleshooting, and maintenance on UNIX & Linux Servers.
• Expertise in configuring IPMP (IP network MultiPathing) in Solaris and Bonding in Linux.
• Experience in installation, configuration and administration of VMware based virtual servers using ESX/ESXi servers, vSphere and Virtual Center.
• User & Security administration, multiple backup & Recovery technologies (Snapshots, Disaster recovery plan) and maintenance of various activities.
• Extensively worked on solaris10 container technology, created local and global zones, modified local zone parameters.
• Day to day administration of the Development environment and Test environment systems.
• Extensively worked on administering NFS,NIS, NIS+, DNS, DHCP, LDAP, Mail servers and Samba servers.
• Experience in configuring Zettabyte File System (ZFS) pools, file systems, snapshots and clones in Solaris and Global File System (GFS) in Linux.
• Extensive experience in Shell (Bourne, Korn) and knowledge of HTML, Java Scripts, SQL, Perl Scripting.
• Experience in RPM Package Administration for installing, upgrading, and checking dependencies. Reconfiguring RPM database using RPM Build and creating YUM repository in Red hat Linux
• Experience working on Oracle Real Application Cluster (RAC) database, which provides highly available database solutions and supported MS SQL Server and DB2 teams.
• Experience on Live Upgrade, migrating from UFS root file system to ZFS file root system in Solaris.
• Helped to establish standards, policies and procedures for all aspects of Unix Server environment (e.g., administration, configuration, documentation).
• Capacity planning and recommending hardware for SAN (Storage Area Network) implementation and replacements.
• Administering operating systems, hardware, and peripheral components, and maintain databases.
• Expertise in designing and implementing LANs, WAN services and IP Addressing schemes.
• Excellent communication, leadership, mentoring, written and problem solving skills.
• Good Team player with proficiency at time management, multitasking, able to meet deadlines and handle priorities.

TECHNICAL SKILLS

Operating System: Red Hat Linux 6/5/4/3 Solaris 10/9/8, HP-UX 11.31, 11.23, 11.11, 11.0, IBM AIX 5.x/4.3, Windows 2008/2003/2000/ NT, SCO Unix.

Hardware: SUN SPARC Enterprise- M5000/4000, ST2540 M2, SUNFIRE X4270 M2/X4170 M2, M-Series Servers, HP Proliant DL 380/360 G6, G5, p3440/rp7440/rp 8440, 9000, Server, SUN StorageTek Tape Auto Loaders SL48/SL24, IBM R / M80 / H70 / H50 Series server and pSeries, HP/Dell PowerEdge series/IBM/Sun Blade Servers, Fire T5240, DL3xx, DL5xx, DL 4xx

Network/Naming Services: NFS, NIS, NIS+, DHCP, Proxy Server, DNS, LDAP.

App/Web Servers: WebLogic 11/10/9, AWS, WebSphere 8.0/7.0/6.0/5.0 , Apache 2.x/1.3x, Tomcat.

Languages: UNIX Shell Scripting, Perl Scripting, HTML, Java Script.

Third Party Software: Veritas Volume Manager(VxVM), Veritas Cluster Service, Red Hat Cluster Suite, HP Service Guard, Sun Cluster, EMC Storage, VMware ESX, RAID Technologies.

Backup Management: Veritas NetBackup 6.x/5.x/4.x, Ufsdump, Ufsrestore, tar, cpio, dd

RDBMS: Oracle 11g/10g/9i/, MS SQL Server

Protocols: TCP/IP,UDP, FTP, SNMP, SMTP, TELNET

PROFESSIONAL EXPERIENCE

Confidential, TX

Sr. Linux /Unix Administrator

Responsibilities:

• Have experience with migrating applications from UNIX (AIX) to REDHAT (RHEL).
• Implemented and maintained monitoring and alerting of production and corporate servers such as EC2 and storage such as S3 buckets using AWS Cloud Watch.
• Developing scripts to be executed as checks byNagiosfor execution in both Windows and Linux environments.
• Nagiosmonitoring configuration and deployment
• Nagioslog Server configuration and deployment
• Nagiosscript and check development, testing, and deployment.
• Design, Packaging, Integration and Testing.
• Installation and configuration of AIX 4.x, Solaris 2.x andSCOopenserver operating system.
• Managed 5 HP-UX andSCOUNIXservers for client applications, networking and printer administration.
• Working with the team to deliver applications migrations from AIX systems to RHEL on new infrastructure (x86) based.
• Experience in migrating the software packages such as IBM Web sphere, Oracle iAS, ehealth, Optim, etc.
• Experience in installing and configuring COTS products.
• Supporting servers with Sybase, Oracle 10g/11g, co-coordinating with DBA’s for performance monitoring.
• Performed daily housekeeping functions, such as establishing new accounts, creating and resetting passwords, performing system backups and recovery, and installing software patches and updates.
• Participation in change control activities, Involved in Memory sizing of different applications.

Environment: AWS(EC2, VPC, ELB, S3, RDS, Cloud Formation, Cloud Watch, Cloud Trial, Route 53), Linux (RHEL 4.x,5.x,6.x), SUSE 11/10, Solaris 10/9/8, SOC Unix, Oracle RAC 11/10g, VERITAS Cluster Server (VCS), VERITAS Volume Manager (VVM), SUN Servers, SUN Fires, Fuji, HP hardware, CMC

Confidential, TX

Sr. LINUX/UNIX System Administrator

Responsibilities:

• Installed/configured/managed/Administrated of all UNIX/LINUX servers, includes the design and selection of relevant hardware to Support the installation/upgrades of Solaris8/9/10(SPARC&X86),RedHat (4/5/6) and Suse (9/10/11).
• Manages client cloud application servers and responds toNagiosalerts.
• Experience using diagnostic and debugging tools such as Top, OS tools,Nagios, IBM
• Configured an AWSVirtual Private Cloud (VPC) and Data Base subnet group for isolation of resources with in AWS RDS.
• Installation, Configuration & Upgrade of Linux, Solaris and Windows operating system.
• Installation of Patches and Packages.
• NagiosMigration fromNagioscore toNagiosb enterprise version withnagiosfusion integration on top.
• Created Custom Pluggins and perl scripts for monitoring. TroubleshootedNagiosXI, Taking Ticket system integration with nagiosxi. Custom Modifications in order to do required groupings. Integrated 4NagiosXI in different Environments along 1 Amazon AWS server intoNagiosfusion.
• IntegratedNagiosXI tonagiosTicketing manager to make auto ticketing.
• To design high availability applications on AWS across Availability Zones and availability regions.
• Installation and configuration of AIX 4.x, Solaris 2.x andSCOopenserver operating system.
• Configuring NFS, NIS, NIS+, DNS, and disk space management on Linux/Unix servers.
• Managed 1900+ servers located in South America using remote tools.
• Experience in writing Shell scripts. Perl for process automation of databases, applications, backup and scheduling.
• Worked on DataCenter Migration Project. Migrated Linux/Unix Servers from one data center to other data center with minimal downtime.
• Involved in creating logical volumes, backups, managed large hard disk farms and resized disk partitions using Logical Volume Manager (LVM) commands on Red hat Linux, and used VERITAS commands for VERITAS file system
• Extensive use of volume management tool using Logical Volume Manager to create disk groups.
• Installation, Configuration and Administration of High Availability using Redhat cluster and Veritas Cluster Servers for failover and redundancy purpose.
• Implemented in Red Hat Cluster Suite and Global File system, Red Hat Network Satellite Server.
• Configured new service group and resources for new application in Veritas Cluster Servers.
• Worked on server consolidation and migration from one data center to another data centers.
• Extensively worked in data and database migration from older machine to latest configurations.
• Configured IPMP, NIC Bonding and Storage Multi-pathing
• Worked with SAN/NAS in EMC Symmetrix DMX 4 configurations and installation/configuration of power path.
• Created and expanded File Systems on demand from DBA's using VERITAS volume manager and also using native UNIX utilities.
• Supporting servers with Sybase, Oracle 10g/11g and MySQL Databases, co-coordinating with DBA’s for Kernel Tuning and performance monitoring.
• Involved in installation of Autosys, scheduling interactive jobs and syncing data.
• Extensive working experience in process scheduling, disk and file system I/O, kernel internals, TCP/IP networking.
• Experience in Load Balance workload evenly across two or more servers, network links, CPUs, hard drives, or other resources, in order to get optimal resource utilization, maximize throughput, minimize response time, and avoid overload.
• Implemented SUDO, SSH and other security tools and security compliance
• Monitor performance and resource utilization of key systems and provide ongoing trend analysis for forecasting future resource requirements.
• Installed and configured VMware ESXi server created VMs and deployed Linux and Windows OS on VMware based VMs.
• Complete periodic checks of production and development systems, CPU utilization, memory profiles, disk utilization, network connectivity, system log files, etc.
• Verify successful completion of daily incremental and database backups, following developed procedures
• Worked on server consolidation and migration from one data center to another data centers. (Migration to Texas)
• Monitor performance and resource utilization of key systems and provide ongoing trend analysis for forecasting future resource requirements.
• Administering operating systems, hardware, and peripheral components, and maintain databases. - Replaced faulty - Disk, Power supply, CPU Fan, HBA cards.
• Debugging issues that are effecting the environment and understanding the root cause and identify a solution
• Fixing the hardware failures by coordinating with management and vendors for a uninterruptible delivery.
• Ticketing Tool used BMC Remedy PAC2000. Worked on CR (Change Request), WR (Work Requests), PR (Problem Tickets).
• Providing 24*7 on-call support on rotation basis and Handling High priority incidents through bridge calls.

Environment: AWS, Linux (RHEL 4.x,5.x,6.x), SUSE 11/10, Solaris 10/9/8, Oracle RAC 11/10g, VERITAS Cluster Server (VCS), VERITAS Volume Manager (VVM), SUN Servers, SUN Fires, Fuji, HP hardware, CMC, Tivoli Monitoring, WebSphere Application Server 5.x/6.0/6.1, LDOM’S F5 Load balancers, Net Apps, LDAP, EMC Storage SAN, VMWare servers, Sybase and Oracle Database.

Confidential, CA

Sr. UNIX Systems Administrator

Responsibilities:

• Installing, Configuring Redhat Linux 5/6, Suse Linux 11.x and Solaris 10.
• Hands on experience with Chef in AWS Cloud environment
• Maintaining system performance by performing system monitoring and analysis
• Configuring local and ISCSI disk devices LVM/VXVM
• Performing backups of data using netbackup
• Applying software updates and changing the configurations using HPSA tool
• Installing, configuring new hardware and software
• Configuring VCS service groups, resources
• Working with Account Management to configure PAM/Winbind/LDAP/Active Directory Creating VM account Management, Access Rights and set password and group configurations
• Managing swap configuration, CPU optimization, memory maintenance
• Scheduling Automated jobs for backups, refreshes and failover
• Configuring VCS service groups, resources
• Troubleshooting VCS engine startup, resources issues
• Responsible for the operations, monitoring the health of systems, Involving in system build from the scratch and administration of Production, Development and Test UNIX systems environments with security remediation.
• Performed daily housekeeping functions, such as establishing new accounts, creating and resetting passwords, developing, scripts, performing system backups and recovery, and installing software patches and updates.
• Performing SUDO administration, creation of Volume groups, logical volumes, file systems, trouble shooting file system mounting problems, Implementing RAID levels, user account management and SSH Implementation
• Installed and Configure the VCS on Solaris 10, RedHat servers and Suse Linux servers. Configured resources and service group as per Application/DBA team requirements and configured Application/DB startup, clean, monitor and stop scripts in VCS to control application/DB start and stop operation automatically.
• Installed and Configured Oracle RAC on RHEL platform. Created ASM devices, voting disk OCR disk as per DBA requirement. Installed ASM rpm’s need for ASM and tuned the kernel for RAC.
• Carving of File system on VxVm, zfs and LVM and added File system to clusters. Carved raw devices and file system as per the DBA and Application team requirements such as Increasing, Shrinking, Restarting, Replacing, and Removing the Volumes.
• Extensive use of LVM, creating Volume Groups, Logical volumes, and disk mirroring, Fix the Problem with the partially mirrored Logical volumes.
• Perform User Account management, data backups, and user’s logon support.
• Responsible for configuring User Authentication for the Linux systems using LDAP.
• Installation/Administration of TCP/IP, NIS/NIS+, NFS, DNS, NTP, Auto mounts, Send mail and Print servers as per the client’s requirement.

Environment: Linux (RHEL 4.x, 5.x & 6.x), SUSE 11/10, Solaris 10/9/8, Oracle RAC 11/10g, VERITAS Cluster Server (VCS), VERITAS Volume Manager (VVM), HP hardware, SUN Servers, SUN Fires, SAP Application, Web logic and Web Sphere Application Server 5.x/6.0/6.1, LDAP, EMC Storage SAN, VMWare servers, Oracle.

Confidential

Linux Server Support

Responsibilities:

• Experience installation RHEL OS and configured required network on HPC cluster.
• Installation, Configuration & Upgrade of Solaris, AIX, HP-UX, Linux (Red hat and SuSE) operating system.
• Installation, Configuration & Trouble Shooting of VXVM under sun Solaris 8, HP-UX
• Managed HPC cluster, performed hardware, BIOS and application upgrade.
• Configured and managed Apache web server and Managed software and hardware RAID systems.
• Managed user accounts and authentication process by NIS service.
• Managed System Firewall utilizing IP Chains, IP Tables. Implemented SSH SSL
• Setup and maintained DNS Primary, Secondary, Cache-only servers, DHCP servers and DNS clients.
• Worked on incidents problem and change tickets related to AIX/Unix/Linux server
• Managing (adding/removing) disks partitions.
• Worked on multiple accounts with Ticket assessment on daily basis.
• Administration and maintenance of WAS ND clusters (vertical, horizontal) and deployment of applications in highly available, load balanced production environments.
• Developed web service integration layer for Web Sphere Portal. Install and configure Web Sphere Portal on33 AIX, UNIX and Windows.
• Experienced in working with Network Engineers to install, manage, and configure NAS based storage and insure overall system and network security.
• Perform auditing on UNIX/Linux Servers for security compliance and monitoring.
• Department Security Focal (Managing all the security related issues like Apars, Cirats, Health
• Worked on security activities(QEV, Health Checks, Priv ID revalidation & PAR) as per ITCS104
• Worked on Server commission and Decommission
• Monitoring the System Performance and tuning the kernel to enhance system performance.
• Worked on Backup issues and resolving as required.
• Job Scheduling and Automating process using CRON & AT
• Worked on Citrix environment user management.
• Administration of Tivoli Storage manager 5.1.4 client.
• Performing User ID creation, modification, deletion and maintain server security
• Monitoring system logs and the root's email for important messages such as errors and warnings or hardware fail errors.
• Worked on tickets troubleshoot, administer and performance tune AIX 5.1, Solaris 6,7 and 8, Red Hat Linux 3.
• Setup and configured network TCP/IP on AIX including RPC connectivity for NFS. Created mount points for Server directories, and mounted these directories on AIX Servers.
• Configured and administrated LPARs. Installation of patches and other software packages
• Configuration of NIS, NIS+, DNS, NFS, Send mail, Samba, Apache for multiple environments.
• Monitoring System performance and do kernel tuning to enhance the system Performance.
• Setup and maintained DNS Primary, Secondary, Cache-only servers, DHCP servers and DNS clients.
• Configured various services, devices as well as applications of UNIX servers and worked with application team to customize the environment.

Environment: Solaris 10/9, Linux RHEL 5, HP-UX 11/11i,AIX 5.3L, Windows 2000/2003, Sun Fire 6800/E6500 Server, E10K/25K, T2000, Sun Fire X2250, Sun SPARC Enterprise 1000, M4000/5000,HP 9000 K,L,N class server, EMC, IBM RS/6000, IBM Power 570,p5 505 Express servers, Apache 2.x,3.x,SAN /EMC.Veritas Volume Manager 5.0, Veritas Netbackup 6.0.

Confidential

Jr. System Administrator

Responsibilities:

• Managed different Users and Groups and maintained Systems security.
• Managed Swap Space and Implemented Quotas to maintain security at User Level.
• Implemented alternate Boot Path to take back up of File System when Operating System is corrupted.
• Installed and configured Solaris Servers and implemented Client - Server model networks.
• Configured SCSI controllers for SCSI-Disks and backup tape drive for nightly backups.
• Configured Install server for Solaris 9 and Jumpstart installation of Workstations through Jumpstart server.
• Configured Terminal servers with TCP/IP address.
• Configured Thin Client on both UNIX and Windows.
• Installed Cute-FTP software on win - 2000 for file transfer between UNIX and Windows Operating Systems.
• Configured NAS box and shared the NAS device for both UNIX and Windows clients.
• Installed and Configured APACHE Web Server on SUN SPARC.
• Installed SAMBA on SUN SPARC and shared resources from Win - 98 clients
• Installed Web Based Administration Tool (WEBMIN) on SUN Enterprise 250 Server.
• Configured Mail server using send mail (SMTP) and Fetch mail (POP3) over the Internet.
• Installed Solaris 9 on sun SPARC Server, configured File system and Raw - Devices
• Thorough knowledge of Boot Process of Solaris on Intel and SPARC machines.
• Good knowledge in TCP/IP applications.
• Configured and Implemented NFS Server and NFS Client.
• Implemented Auto mount using NFS, Configured Cache FS over NFS.
• Implemented RAID Levels using PCI SCSI RAID Controller.
• Configured NIS and NIS + Master and Replica servers and Clients.
• Configured DNS and Set up DNS for Solaris and Windows NT.
• Configured DHCP Dynamic IP address allocation for clients.
• Configured PPP and established link between Solaris and Windows using SLIP.
• Planned and Scheduled jobs using at and cron tab commands.
• Installed various Packages and Patches on SUN SPARC and Intel Machines.
• Good knowledge on Network Installation, maintenance and troubleshooting of UNIX.
• Good knowledge on Troubleshooting and Performance Tuning of Solaris Desktop / Solaris Servers.

Environment: Solaris 10/9, Linux RHEL 5, HP-UX 11/11i,AIX 5.3L, Windows 2000/2003, Sun Fire 6800/E6500 Server, E10K/25K, T2000, Sun Fire X2250, Sun SPARC Enterprise 1000, M4000/5000,HP 9000 K,L,N class server, EMC, IBM RS/6000, IBM Power 570,p5 505 Express servers, Apache 2.x,3.x,SAN /EMC.Veritas Volume Manager 5.0, Veritas Netbackup 6.0, Test Director, Quick Test Pro,