SUMMARY

• Over 8 years of experience specialized in System Administration working on Redhat Linux, Solaris, Suse Linux, AIX, Cent OS, OEL and Windows environments.
• Experience in administering Solaris & Linux. Experience in Installation, Configuration, Backup, Recovery, Maintenance, Support of Sun Solaris & Linux.
• Experience in Disaster Recovery and Planning.
• Strong experience in Problem determination, Security, Shell Scripting.
• Strong experience in user administration; startup and shutdown scripts, crontabs, file system maintenance and backup scripting and automation.
• Experience in provision, deploy and manage large numbers of systems in a commercial OpenStack Cloud infrastructure environment.
• Experience in Deployed Puppet, puppet Dashboard and Puppet DB for configuration Management to existing infrastructure.
• Proficient in Installation, configuration, maintenance of open LDAP server and applications integrated with Apache Web server and Postfix mail server for user authentication.
• Experience in Webservers such as Tomcat 5.x/4.x/3.x, Apache Web Server 2.x/1.x, JBoss Application Server 4.0.x/4.2.x.
• Experience in Hardware configuration, installation and management on Sun, HP servers and Workstations.
• Experience in installation of monitoring tool, proficient in Splunk search and building the reports and alerts and configure dashboards using XML.
• Strong experience in configuration and installation of Nagios monitoring tool and creating custom libraries using Perl and shell scripting.
• Handling and generating tickets via the Service Now ticketing tool.
• Strong technical background in Storage, Disk Management, Logical Volume Management (LVM) and logical partitioning.
• Expertise in Installation, Configuration of Package and Patch Management.
• Experienced with installation, configuration of RAID volume management using Veritas Volume Manager and Solstice disk suit on Solaris Disk accros & Quotas
• Good experience and understanding of SAN (SAN arrays; HITACHI, EMC) technology including zoning, disk creation on various systems, maintaining and configuring various fiber switches and storages.
• Providing 24x7 technical support to Production environments.
• Experience in configuration of NIS, NIS+, LDAP, DNS, DHCP, NFS, Automount, FTP, remote access, Security management and Security trouble shooting skills.
• Good experience in configuration of NFS - NIS, Automounting, DHCP, Proxy Server.
• Worked on implementation of Veritas Volume Manager and Netbackup, Logical Volume Manager - LVM, RAID Configuration, KickStart Installation
• Thorough understanding of NAS and SAN - NetApp filers.
• Installation of third party software’s like JAVA/J2EE, Middleware software, Application Servers, reporting tools software, Backup Software, etc.
• Experience in installing servers over the network via NIM and Kickstart for AIX and Redhat Linux.
• Experience in a party tools.
• Experienced in the documenting hardware specifications, backup and recovery procedures and policies.
• Excellent communication skills; enthusiastic with the drive and determination to do whatever it takes to get the job done.

TECHNICAL SKILLS

Operating Systems: Linux (Red Hat 4.x,5.x,6.x, Solaris 9/10/11, HP-UX 11.20,11.0, IBM AIX 5L(5.1,5.2,5.3), Windows 2000/NT4.0, windows 95/98/ME/XP, VMware ESX 2.x,3.x.

Hardware: IBM RS/6000, P Series 520, 550, 570, 575, 590, 595, 630, 650, 670, M80, S80, H70 and H80, IBM ESS (Enterprise Storage Server), DS8000, IBM 3494, 3583 Automated Tape Library, Brocade, SUN Enterprise 450, Sun Fire 4500,V880, V480, E420R, E450, E250, HP DL 380s and 580s, EMC Symmetrix, Hitachi arrays, Backup Devices, Ethernet Hubs, Routers, Repeaters, Jukebox, Printers DELL Poweredge 1650,2850,2950,6400.

Programming Languages: C, C++, Java, Servlets, HTML, Perl and Shell programming.

Web/Application Servers: Web Sphere Application Server 3.5,4.0, Netscape/iPlanet Server, MQSeries, WebLogic Server, Apache Server, Tomcat 4.x/5.x, JBoss 4.0.x/4.2.x, HTML, DHTML, XML, Java Script, JSP, Servlets, EJB.

Applications: HACMP, Samba, Tivoli (TSM), Nagios, Veritas NetBackup, Veritas Volume Manager, LVM, Splunk

Networking: TCP/IP, NIS, NFS, DNS, DHCP, Cisco Routers/Switches, WAN, SMTP, LAN, FTP/TFTP.

RDBMS: IBM UDB2, Oracle 7.x/8.0/9i, MS-SQL Server 7.0/6.5 and MS-Access 97/95.

Storage: NetBackup, SAN EMC Symmetrix 800/ DMX1000, 2000 & 3000, EMC Clariion 500, 600, 700, NetApp NAS 2000/ 3000 series.

Cloud: OpenStack, AWS

PROFESSIONAL EXPERIENCE

Confidential, Sterling, VA

Sr Linux Engineer/Administrator

Responsibilities:

• Provided system support for Solaris, CentOS and Redhat Linux servers including routine maintenance, patching, and system backups and restores, and software and hardware upgrade
• End to end migration of applications from Solaris 9 to Linux CentOS 6.5 and Redhat 5.x and 6.x. using Chef deployments.
• Worked on Redhat Satellite which includes upgrading servers on a quarterly basis and creating base, child, custom channels.
• Setting up the Chef Workstation and Chef Nodes
• Worked closely with different teams across the environment.
• Experience with VMware Virtualization using ESX hypervisor of Vsphere 5.1.
• Closely worked with the core hosting team to build the servers required using CloudBolt
• Worked with the network team to setup the VIPs and setup the Load Balancers across the environment
• Worked on Linux and Solaris Containers and LDOM configurations. Installation, configuration and administration of VMware, Solaris Zones, Containers and Ldoms.
• Hands on experience in Deployed Puppet, puppet Dashboard and Puppet DB for configuration Management to existing infrastructure
• General UNIX Systems Administration on Linux servers, including alert handling, deploying software releases, backups, hardware and software installations.
• Configured volume groups and logical volumes, extended logical volumes for file system using LVM for Linux and ZFS for the Solaris.
• Provided 24x7 supports through Trouble Ticket Handling.
• Network Monitoring Using Nagios tool
• Network trouble shooting using ‘ndd’, 'traceroute', 'netstat', 'ifconfig' and 'snoop' etc.
• Developed automated processes that run daily to check disk usage and perform clean up of file systems on environments using shell scripting and CRON.
• Used Fabric, a tool for remote execution and deployment to Automate Administration Tasks And Deployments
• Delivered OpenStack solutions into customer environments and ensures solutions works as specified
• Deployed applications using Chef
• Experienced in system administration, System planning, co-ordination and group level and user level management
• Communicated and Coordinated with customers internal/external for resolving issues for reducing downtime
• Assisted in configuring the application servers with other components such as database, web servers, LDAP directory, Active Directory, BEA Web logic etc.
• Supported production systems 24 x 7 on a rotational basis.

Environment: CentOS 6.5, Red Hat Enterprise Linux 5.0, Solaris 9/10, VERITAS netback up, HP-UX 11.20, AIX 5.3, CloudBolt, SAN, NIM,ZFS, VMware ESX LPAR/DLPAR’s, Kickstart, NIS, NFS, IBM Tivoli, IBM z/VM, IBM Web sphere, Chef, Apache, Tomcat, JBoss

Confidential, Cleveland, OH

Sr Linux Engineer/Administrator

Responsibilities:

• Provided system support for Redhat Enterprise Linux 5.x/6.x, CentOS including routine maintenance, patching, and system backups and restores, and software and hardware upgrades.
• Implemented application provisioning in OpenStack Cloud, integrating with Puppet
• Deployed Puppet and Puppet DB for configuration management to existing infrastructure.
• Worked on building new SUSE & Redhat Linux servers, support lease replacements and implementing system patches using the HP Server Automation tool.
• Setting up of NIM server for OS images/MLs / Patches and updating them.
• Configured Red Hat Linux servers over the network using Kickstart on Dell servers.
• Experience in installation and implementation of SLES 10, SLES 11 and Redhat Operating Systems.
• Configuration, implementation and administration of Clustered servers on SUSE Linux environment.
• Developed, configured and created Splunk scheduled application management reports
• Administering web services and Linux clustering.
• Expertise in creating and managing Logical Volumes in SLES Linux.
• Configured volume groups and logical volumes, extended logical volumes for file system
• Worked on the volume groups and extended the volumes for a file system using Logical Volume Manager (LVM) commands.
• Performed User Account management, data backups, and user’s logon support.
• Configured NFS and NIS in Red Hat Linux and SLES.
• Installed hot fixes and service packs.
• Created and configured file systems for Oracle 9i on Red Hat Enterprise Linux 5.0 servers.
• Configured SAMBA to get access on the Linux shared resources from Windows clients.
• Implemented Web Application Servers Tomcat Web Server, JBoss Application Server on Red Hat Linux environment.
• Performed daily backups, restoration of data as per requests from developers using Veritas Netbackup.
• Veritas File system and Veritas Volume Manager 2.5 are used to configure the RAID 1 and RAID 5 Storage Systems
• Experience in Servers consolidation and virtualization using VMware virtual infrastructure, VMware ESX.
• Configuring Virtual Machines under VMWare ESX Servers to install Linux guests.
• Understanding of web services software architectural and design issues.
• Good experience working on LAN/WAN and TCP/IP Protocols.
• Configured backup/archive policies using backup utility and mksysb images of root volume group to meet data archiving requirements and disaster recovery readiness.
• Generated reports to show the trends of resource utilization user/CPU/network load.
• Used Network Monitoring tools like Nagios, and used system performance analysis tools.
• Network trouble shooting using ‘ndd’, 'traceroute', 'netstat', 'ifconfig' and 'snoop' etc.
• Used AWK to do the data manipulation on input files like reading records, breaking the records into fields and counting the records.

Environment: Red Hat Enterprise Linux 5.0, SLES 9/10, HP-UX 11.20, AIX 5.3, P550, P590, P595, Windows NT 4.0, DELL Poweredge 2850, 2950, IBM DB2, Oracle 9i, Samba, SAN, NIM, LPAR/DLPAR’s, Kickstart, NIS, NFS, IBM Tivoli, IBM z/VM, IBM Web sphere, Apache, Tomcat, JBoss, Nagios, HACMP, VMware ESX.

Confidential, Chicago, IL

Sr Linux Administrator/Engineer

Responsibilities:

• Installed configured and Administered Solaris and Red Hat Enterprise Linux servers.
• Installation and configuration of SOLARIS 9 and 10 in SUN E420R servers and SUN Ultra60 & Ultra10 workstations.
• Deployed Puppet and Puppet Dashboard for Configuration management to the existing Dashboard.
• Worked on Redhat Satellite Server 6.0 which includes registering servers to RHN and upgrading servers on a quarterly basis.
• Configuration of NIS, NFS, AutoFS on a Solaris Domain along with Windows Clients using NFS thru Solstice Network Client 3.2.
• System and Network Administration training, which include but is not limited to installing UNIX HP, Solaris, UNIX internals, NFS/NIS management, and DNS Configuration.
• Installation and configuration of Logical Volume Manager,Sun- Clustering Network Array, VERITAS Volume Manager, EMC.
• Handled System tuning, log maintenance, disk space management.
• Experience with the version control software Subversion to ensure source code and scripts and database Codes are regularly checked into the tool and properly version controlled.
• Wrote shell scripts for automated installations, to parse logs and create reports.
• Improved performance of database transactions by re-layout of Database files systems
• Implementation on various Solaris, RedHat Linux and SAN related requirements of PMR users.
• Installed and configured J2EE Application servers on Windows and Solaris environments.
• Performance monitoring with Sar, Iostat, VMstat, MPstat and Other Tools.
• Took backups on Solaris, windows filesystems using Veritas Netbackup.
• Installed Web Logic 8.1 with SP5 Server and configured Domains, Admin and managed servers for Applications to be deployed.
• Installed application connectivity software to enable IBM print services. Configured and administered firewall rules to effectively monitor system files, port security, and network traffic activity coming through the firewall
• Installed and configured Sudo for users to access the root privileges.
• Experienced in Troubleshooting critical hardware and software issues and other day-to-day user trouble tickets
• Experience in Servers consolidation and virtualization using UML Linux, XEN and VMware virtual infrastructure, VMware ESX, VMware Vcenter.

Environment: Solaris, Red Hat Linux Enterprise, AIX, HP-UX, E20K, E12K, E10K, Sun Enterprise E 3 /420 R/250 Servers, Ultra Enterprise 2/1 Servers, SPARC server 1000, SPARC server 20 Enterprise Servers, SPARC server 1000/20, SPARCstation 10, Sun Sparc Ultra 1,5,10,VERITAS Volume manager, VCS and VERITAS netback up, HP Network Node Manager.

Confidential, Florence KY

Sr Linux Administrator

Responsibilities:

• Provided system support for Solaris and RedHat Enterprise Linux servers including routine maintenance, patching, and system backups and restores, and software and hardware upgrades.
• Worked on building new SUSE & Redhat Linux servers, support lease replacements and implementing system patches using the HP Server Automation tool.
• Experience in installation and implementation of SLES 10, SLES 11 and Redhat Operating Systems.
• Configuration, implementation and administration of Clustered servers on SUSE Linux environment.
• Experienced in system administration, System planning, co-ordination and group level and user level management.
• Expertise in creating and managing Logical Volumes in SLES Linux.
• Performed automated installations of Operating systems SUSE Linux using autoyast.
• Experience on backup and recovery software like Net backup on Linux environment.
• Tested and managed the upgrade of our puppet infrastructure from 0.25.4 to 2.6.6.
• Systems and network Planning and Administration.
• Expertise in setting up Nagios Monitoring software.
• Wrote multiple Perl and Shell scripts to deploy Database Tags and to automate administration tasks
• Understanding of Microsoft System Center: Creating and Implemented Changes on servers and documented the change in the Microsoft System Center for future reference.
• Resolved Security Access Requests via Peregrine Service center to provide the requested User access related requests.
• Expertise in Installation, Configuration of Package and Patch Management.
• Handling and generating tickets via the BMC Remedy ticketing tool.
• Experience with HP Gen 8 blade servers and rack mounted servers.
• Coordinated Hardware configuration, installation and management as well as. Configuration of ILOs and Console connections for HP Gen 8 Blade and Rack mounted servers.
• Experience with setting up Linux servers for Oracle Real Application Clusters and configuring SAN based mount points.
• Excellent Project Management experience.
• Expertise in Performance Monitoring and Performance Tuning using Top, prstat, sar, vmstat, ps, iostat etc.
• Creating new file system, managing & checking data consistency of the file system.
• Created new file systems using Raw Device Mapped lun’s, Virtual Disks and SAN storage as per required.
• Successfully Migrated virtual machines from legacy Virtual environment Vmware Vsphere 4.1 to new Vmware Vsphere 5.1.
• Documented the procedure of Obsoleting servers resulting in considerable reduction in time and mistakes for this process as well streamlining the existing process.
• Supported after-hours to meet deadlines as well as for operational support as required.
• Proven experience in end-to-end problem determination/troubleshooting system issues.
• Thorough understanding of networks and storage systems.

Environment: SUSE Linux 10, 11; HP Gen 8 Blades and Rack mount Servers, HP Server Automation, Vmware Vsphere 4.1 and 5.1, Microsoft System Center, IBM Storage, and NetBackup Storage.

Confidential, Jersey City, NJ

Linux Administrator

Responsibilities:

• Installation and configuring of SUN Solaris and Linux servers.
• Involved in Building and configuring Solaris 8/9/10 using Jump start server and Red Hat Linux Servers Using Kick Start server as required for the project. Maintained maximum uptime and maximum performance capacity for Enterprise Production, QA and UAT/Staging.
• Incident management for Unix Servers (Solaris, Linux).
• Monitoring CPU, memory, SCSI disks, disk controllers, physical disk, HW and SW RAID, multipath, file systems, network using the tools NAGIOS and BMC Tools. 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.
• Planned, scheduled and Implemented OS patches on both Solaris & Linux boxes as a part of proactive maintenance.
• Extensive experience in installing, integrating, tuning, and troubleshooting Apache, Tomcat WebSphere and Weblogic application server. Installation and configuration Veritas Net Backup on Sun Severs and performing Backup using Veritas Net Backup.
• Sudo administration and Redhat Linux package administration using rpm and YUM.
• Extensive use of Veritas Volume Manager for Disk management, file system management on Sun Solaris environment.
• Extensive use of Korn shell,Bash for scripting.
• Involved in Planning, building and Administration of various High Availability clusters and heart beat checking on Sun Solaris using VCS in heterogeneous SAN environment.
• Working knowledge of VMware (Virtualization).
• Involved in migration of projects from one flavor to another one.
• Involved in development, user acceptance and performance testing, production & disaster recovery server.
• Worked with other IT teams, customers (users), and other managers in helping build and implement systems and standards.

Environment: Solaris 8/9/10, Red Hat Linux 4/5, Sun Enterprise Servers, SUN FIRE 6800/E6500/E4500, Sun Sparc1000, IBM RS/6000, Disk Suite, Veritas Volume Manager 3.x/4.x, LDAP, DNS, NIS, NIS +,SNMP, Shell scripting (Korn, Bourne, Perl), SENDMAIL, Apache, WebSphere, Sun and Veritas Clusters.

Confidential

Linux/Unix Administrator

Responsibilities:

• Responsible for day-to-day System Administration for SUN SOLARIS and Linux servers.
• Build the E450 and 6000 Servers with Solaris operating system.
• Storage setups, RAID, Logical Volume Manager, system backup design and disaster recovery
• Experience with VMware Virtualization.
• Solaris Operating Systems upgrade, package installations, updates, patches and software fixes.
• Configured the Send mail client side for Sun Solaris servers.
• Responsible for troubleshooting end user and application problems.
• Veritas File system and Veritas Volume Manager 2.5 are used to configure the RAID 1 and RAID 5 Storage Systems.
• Creating User accounts, Mail account, groups, printer.
• Installing operating systems, patches, hardware, vendor software packages, system customization and documentation of all departmental UNIX, PC-based workstations and Terminal.
• Monitoring system resources, logs, disk usage, scheduling backups and restore.
• Set up Quotas for the user accounts & limiting the disk space usage.
• Creation/Configuration of Additional swap/ tmp dynamically as and when required.
• NFS Management - Take care of user accounts/groups, setting up of NFS Environment.
• Solving the problems as & when created when NFS data being accessed.
• Worked closely with database administration staff to ensure optimal performance of databases, and maintain development applications and databases.
• Assembling the systems and installing operating system and application software.
• Designing computer displays to accomplish goals using flowcharts and diagrams.
• Installing Operating Systems and Application Software.
• Training for users to use the program.

Environment: Solaris 10/9/8/2.x, HP-UX 11.0/11i, AIX 4.3, 5.1/5.3L,Sun E10K and E15K Servers, Sun Enterprise 6500/500/4500/450/ 420 R/250 Servers, Ultra Enterprise 2/1 Servers, SPARC server 1000, SPARC server 20 Enterprise Servers, SPARC server 1000/2