PROFESSIONAL SUMMARY:

• Creating Linux Virtual Machines using VMware Virtual Center and AIX LPARs on P550 and P570.
• Around 7+ years of IT experience as Linux System Engineer/ Administration working on VMware/Red Hat Linux, Ubantu, Solaris, Centos, Suse Linux, AIX, Cent OS, HP - UX, OEL and Windows environments with HP Cloud service automation (CSA)
• Experience in Installation, Configuration, Backup, Recovery, Maintenance, Support of Linux & Solaris.
• Experience in Installing, upgrading and configuring Red Hat Linux 3.x, 4.x, 5.x, 6.x using Kick start Servers and Interactive Installation.
• Worked with Database administrators to tune kernel for Oracle installations.
• Experience with Veritas Volume Manager (VxVM), Veritas File System (VxFS), Veritas Net Backup, Veritas Clustering with SAN, NAS environment.
• Experience in installing, configuring and implementing the RAID technologies using various tools like Veritas volume Manager and Solaris volume manager.
• Experience in Creation and managing user accounts, security, rights, disk space and process monitoring in Solaris and Red hat Linux.
• Installation and up gradation of Packages and Patches configuration management, version control, service pack. & reviewing connectivity issue regarding security problem.
• Experience in configuration of NIS, NIS+, DNS, DHCP,WINS, NFS, LDAP, SAMBA, SQUID, postfix, send mail, ftp, remote access, security management and Security trouble shooting skills.
• Experience on Webservers such as I Planet Webserver 6.0 /Sun one web server 6.3, 6.5, Tomcat 3.x, 4.x, 5.x & Apache Server 1.x, 2.x and integrating them with WebLogic 10.x servers.
• Experience in using automation tools like Puppet.
• Strong knowledge and experienceinLogical Volume Management (LVM), Storage and Disk Management
• Experience in administering VSphere 4.0, 5.1, 5.5.
• Experience in Installation of Oracle and MySQL.
• Experience in to automate the administrative tasks and management using cron and Confidential .
• Experience in scripting for automation, and monitoring using Shell, PHP, Python & Perl scripts.
• Performed DevOps for Linux, Mac and Windows platforms.
• Experience in Installing Firmware Upgrades, kernel patches, systems configuration, performance tuning on Unix/Linux systems.
• Experience working in SAN environment like EMC Symmetric DMX3, DMX4 and Clarion CX3 series arrays.
• Installation and configuration of Jboss, Web Sphere 5.1/6.0 Application Server on Solaris and Linux boxes.
• Experience in LDAP and Puppet, Splunk designed and developed integrated solutions through these Devops tools, processes and procedures to facilitate the cost effective delivery of services or fielding of products.
• Configuring and troubleshooting networking tasks like DNS and TCP/IP. Experts on cloud technologies like AWS
• Experience in Network Configuration and Troubleshooting using TCP/IP
• Daily tasks including incident management by solving tickets using service now and remedies.
• Exclusive knowledge on shell and pearl scripting. Managing windows servers like patches and upgrades.
• Developed customer solutions based on current hands-on knowledge of the Linux product line, storage, networking, management, and associated customer business processes.
• Experienced in documenting various maintenance activities and upgrades and changes in the network architecture.
• Experience in Veritas functionality such as Digital Monitoring products (DMP).
• Day to day ticket resolving & submit CRQ based on user requirement
• Performing regular day-to-day Systems Administration activities such as User Administrations, Disk Management, Package Install, Patch Management, Storage Management, Performance Monitoring; Log files Monitoring, Jobs Scheduling, NFS administration and Disaster Recovery/fail-over exercises. Proficient in Shell Scripting (Bash), Sed and Awk.
• 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.

TECHNICAL SKILLS:

Operating Systems: Linux (RedHat 5/6), Sun Solaris (10/9/8), Ubantu, IBM AIX 5.x,6.1,7.1 Windows 2003/2008 Server, VMWARE ESX/ES

Hardware: Dell PowerEdge Series, ATG 10.2, HP DL Series servers, HP Blade, Sun Fire Servers - E25k, E15k, 12k, E280R, E480R, V240,420R, V440, V480, V490, V880,V890 and 4800

Data Centre Servers: E250, E450, E3000 and E3500

Tape Libraries: Sun StorEdge L20/L40/L60, L180 and Storagetek's 9840

A/B/C Fibrechannel Arrays: Sun StorEdge 3130, A1000/D1000, EMC DMX 800 and 1000

Languages: Shell scripting, Python, PERL, Ruby, C, C++,JEE

Networking: TCP/IP, DNS, NFS, NIS, SSH, DHCP,WINS, Cisco Routers / Switches and LAN

Tools: Sun Cluster 3.2, VERITAS NetBackup 6.0, VERITAS Storage Foundation Suite, Solaris Volume Manager, sendmail

Web Technologies: Apache 2.0, WebLogic 8.1/10, WebSphere, JBoss, IPlanet, IIS, HIS.

PROFESSIONAL EXPERIENCE:

Confidential, Los Angeles, CA

Sr. Unix/AIX Administrator

Responsibilities:

• Responsible for Installation, Configuration Management, Maintenance and Systems Development of Red hat Linux and Sun Solaris systems.
• Monitored and administered Servers for day-to-day problems, patches, user administration, and hardware failure, monitoring log files, backup, software patching, configuration changes and documentation.
• Installed, upgraded and configured SUN Solaris 9/10/11 on Sun Servers using Jumpstart and Red hat Enterprise Linux 5/6 using kick start.
• Installed & configured Guest operating system like Red hat 5.x, 6.xand Sun Solaris on VMware ESX 5.x.
• Performed UNIX System Administration. Fine tuning, Kernel debugging, process scheduling, disk and file system I/O, kernel internals, TCP/IP communications.
• Configured the LUNs assigned by the storage administrators, and managed Volumes using Logical Volume Manager (LVM) on Linux.
• Installed and maintain Puppet-based configuration management system. Designed and deployed the Nagios implementation, Implemented Puppet modules to automate configuration of a broad range of services.
• Managed user accounts and groups on a large scale in LDAP and NIS environments.
• Troubleshooting and analysis of hardware and software failures for various Solaris servers.
• Involved with the deployment teams in troubleshooting and fixing day-to-day problems of the applications in production on 24/7 schedule.
• Post build configurations, checks, updating, security checks, file systems, permissions and packages.
• Working with backup/storage team for backups and storage allocation for applications.
• Monitoring severs and resolving tickets assigned to group, troubleshooting different application related issues/provisions.
• Performed Memory and Swap management to improve optimization and performance of the servers.
• Installed, configured and managed Oracle 10g RAC/ 11g RAC, Standby databases.
• Configuring and Administering Oracle 11g Automatic Storage Management (ASM).
• ASM disk creation, ASM Data groups and ASM File creation.
• Installation of Packages and required Patches to the application.
• Setup, configuring and backup management using VERITAS Net Backup.
• Daily Monitoring of Net Backup activity and reporting to proactively avoid issues.

Environment: SUN Solaris 8/9/10, RHEL 5.x/6.x, VMware ESX5.x, Apache 2.2.x, SuSE EL 9/10WebLogic 8.x/9.x, Sun Fire T1000, T2000, Sun M9000, M5000, M3000, Sun X3-2, X3-4, HP C Blade System, BL460c, BL420c EMC, VERITAS Storage Foundation 5, VERITAS Cluster Server 5.1, VMware.

Confidential, Folsom, CA

Linux system Administrator

Responsibilities:

• Installation, Configuration & Upgrade of Solaris, Red-hat Linux, AIX, HP-UX operating systems.
• Configuring & handling Samba servers on Linux, Managing file system.
• Responsible for Installation, configuration and administrationof AIX 5.3 and 6.1 systems.
• Provided 24x7 on call support.
• Hands on experience in providing day to day support like resolving sever hung up, file system full,troubleshooting critical issues.
• Improve server utilization and sharing I/O resources to reduce total cost of ownership and make better use of IT assets using Power VM (Advanced Power Virtualization).
• Extensive technical knowledge and experience in enterprise virtualization environments including creating and managing Datacenter, Virtual Machines.
• Provide support to Oracle RAC and DB2 database while coordinating with database teams.
• Establish and document procedures to insure data integrity including system fail-over and backup/recovery.
• Experienced in managing LPAR with virtual memory management and memory optimization and using AIX Virtual Memory Manager (VMM).
• Designed, installed and configured HACMP cluster environment, with cascading and mutual takeover.
• Expertise in Troubleshooting on High Availability Clusters (HACMP).
• Experienced in Installing, Configuring and Upgrading HMCs.
• Create virtual media repository and LPAR dedicated virtual optical drives in the VIO servers to make new installations, cloning and migrations faster and easier.
• Performed the daily system administrationtasks like managing System resources, Disk space resources, operations and security.
• Expertise in working with LVM, Disk mirroring, and Disaster Recovery.
• Responsible for Profile backup of Managed Systems and Critical backup of HMC.
• Administering and troubleshooting of AIX HACMP Clusters.
• Provide support to Oracle and DB2 database while coordinating with database teams.
• Updated data in inventory management package for Software and Hardware products.
• Capacity Planning, Infrastructure design and ordering systems.
• Worked with DBA on installation of RDBMS database, restoration and log generation.
• Disaster Recovery Support using TSM.
• Responsible for SAP implementation in AIX.
• Used the LVM extensively; Created/Modified/Deleted Volume Groups, Logical Volumes and File systems; Added/Removed physical disks; Mirrored Volume Groups and Logical Volumes.
• Setup Jumpstart server for auto installations of servers.
• Involved in user, package and patch management and administration.

Environment: IBM-AIX, Solaris, Oracle 11g, DB2, HACMP IBM HTTP Server, Apache Web Server, WebSphere Application Server 4.0 and Unix Shell Scripting.

Confidential, Atlanta, GA

Linux System Administrator

Responsibilities:

• Managing UNIX Infrastructure involves day-to-day maintenance of servers and troubleshooting.
• Performed Red Hat Linux Kick start installations on Red hat 4.x/5.x, performed Red Hat Linux Kernel Tuning, memory upgrades.
• Installation & Configuration of software packages in Red hat Linux using both yum and rpm installations.
• Setting up password less login into Linux servers for users using ssh.
• Experienced in troubleshooting critical hardware and software issues and other day-today user trouble tickets.
• Troubleshoot and fix volume group and file system problems.
• Used various networking tools such as SSH, Telnet, rlogin, ftp and ping to troubleshoot daily issues. Also responsible to design, implement and maintain DNS, NFS and FTP services.
• Creating and Administrating File systems on Red Hat Linux.
• Installation and Configuration of VMWARE ESX servers and Created RHEL Guest VM's for Dev/ Test and production environment.
• Upgraded Servers with VERITAS Volume Manager (VxVM) from 3.x to 4.1.
• VERITAS NetBackup installation & maintenance Backup/restore on ADIC (Intelligent Storage Scalar i2000k Library Management Console) using server WindowsNT/2000& Sun Solaris server & taking backup in DLT tape & checking the job failures.
• Installation and support of various applications like WebLogic server 9.x, JBoss 4.x, Apache Tomcat6.x, and Oracle 9i, 10g, in RHEL 4.
• Maintained Volumes and File systems for Oracle, MySQL, DB2, Sybase databases.
• Configuring DNS, DHCP, NIS, NFS and other Network Services in IBM Power Series.
• Implementation of VERITAS Cluster Server 4.1 for Oracle 9i Database Environment.
• Worked on Shell scripts and Perl scripts for automation of daily tasks using Cron tab.
• Troubleshooting Unix/Linux network and security related issues.
• Solving various system related issues: such as high load-average, reduction of waiting I/O percentage.

Environment: RHEL 4.x/5.x, Solaris 8/9/10, VERITAS cluster server 5.0, VERITAS foundation suite 5.0, Apache 2.2.x, Oracle 9i,10g, JBoss 4.2, VMware, Sun Fire x4100, x4200, x4250, T2000, T5440, M3000, Dell R805, EMC Symmetric 8830, 8840, DMX -3 NFS, and DNS, EMC, Shell, bash scripting.

Confidential, Middletown, NJ

Linux Admin

Responsibilities:

• Responsible for installation, configuration, and administration of Linux/Solaris.
• Installed and configured Tripwire, DNS, Nmap, SSL, sftp, Ssh on UNIX & Linux servers.
• Responsible for troubleshooting various problems on different environments such as development, QA, Staging and Production by analyzing log files.
• Responsible for implementation, documentation, integration, problem resolution, root cause analysis, quality assurance, disaster recovery, audits, performance tuning, upgrades, OS backups,, developing scripts, executing, migrations, adding/removing users, space management, backups and recovery and all other daily system administration functions.
• Migration from WebSphere 5.x to WebSphere 6.0/6.1 Confidential enterprise level.
• Implemented Disk mirroring and RAID implementation using Veritas Volume Manager.
• Worked on Emulex/Qlogic HBA installation on Sun Fire v240, v440, v480, v490, v880 and v890.
• Performed deployment activities and environment support including installation, configuration, diagnostics, planning and upgrades for WebSphere Application Server and Jboss Application server.
• Wrote and modified shell scripts (Perl, C, ksh) &cron to perform automated administration task.
• Managed data center migrations, data center backup and recovery operations utilizing StorageTek tapelibraries and Legato Networker software.
• Installed and Configured Apache HTTP web server, (LDAP), OpenWave, Novell's Identity Manager on AIX, Solaris.
• Configured Jumpstart, Kickstart, NIM and HP ignite servers and performed respective installations.
• Involved in test planning, testing methods, including walkthroughs, simulations, joint testing, and surprise testing of real disasters as a part of Disaster recovery test drive.
• Liaised with DBA team for Oracle database installation, restoration, performance issues, network related issues on Unix Servers and with vendors for hardware related issues.
• Configured LUNs, created logical volumes, file systems, exported and mounted NetApp filers on host.

Environment: Red Hat/Linux 4, SUSE 9, AIX 5.x, Dell Power Edge servers, Intel servers, Sun Ultra Enterprise 4500, Sun Enterprise 450, Sun Enterprise 420R, Sun Enterprise 250, Sun Fire V20z servers, Shell Scripting, Bash, VERITAS Volume Manager, VERITAS Netbackup 5.0, JBoss 4.0, Perl Scripting, Veritas Cluster Server, Apache.

Confidential

System Engineer

Responsibilities:

• Responsible for supporting Linux servers for production, development and testing.
• Installing, Configuring and Maintaining the DHCP, DNS, NFS send mail server.
• User Account Management, Group Account Management, configuring dumb terminals, adding modems, formatting and partitioning disks, manipulating swap, local and remote printer management, taking and restoring backup, scheduling jobs.
• Performance tuning and preventive maintenance. Performed daily backup.
• Performed addition of Swap space Confidential run time.
• Performed installation and configuration of LDAP.
• Resolving TCP/IP network access problems for the clients.
• Implementing Remote System Monitoring with Sun Microsystems.
• Enabled the more agile development environment, and manage resourcesby Dockers.
• Performed administrative tasks such as system startup/shutdown, backups, Printing, Documentation, User Management, Security, Network management, configuration of dumb terminals.
• Performing extensive Logical Volume Management (LVM) tasks.
• Open-source development, including code contributions to Bcfg2, MUNGE, pdsh, SLURM, VMware Ruby .
• Troubleshooting backup and restore problems and performed day-to-day trouble shooting for the end users on Solaris and Linux based servers.
• Develop, Maintain, update various scripts for services (start, stop, restart, recycle, cron jobs) UNIX based shell, Perl.
• Configured and maintained NFS servers on Linux.
• Setting up Oracle 8 server in Linux/Unix environment.

Environment: Linux (RedHat Enterprise, CentOS), Centos, Windows 2003, HP, IBM, Solaris, SLURM, Oracle 8, SSH Gate, Cisco routers/switches, Dell 6400, 1250, Sun E450, E250.