SUMMARY

• 7+ years of experience as a System Engineer/Administrator under environment of RedHatLinux(RHEL) 4/5/6/7, IBM AIX 6/7, Windows 2003/2008 R2/2012, VMware 4/5/6 environment.
• Created and maintained user accounts, profiles, security, rights, disk space and process monitoring.
• Worked on Configuration Management such as Puppet and Ansible.
• Worked on version controls like GIT and SVN. Worked on Agile Methodologies.
• Have good hands on experience on some of the monitoring tools like Nagios, Splunk and Zabbix.
• Expertise in VMWARE virtual environment.
• Have good experience on various Devops tools.
• Performed Remote system administration using Network protocol tools like ssh, http, rsh, telnet, scp, ftp, sftp, ssl, RSA secure connection and Rlogins.
• Experienced in installing, upgrading, patching, configuring and administrating Linux OS with proper release management.
• Experienced in Performance Monitoring, Security, Trouble shooting, Backup, Disaster recovery, Maintenance and Support of Linux systems.
• Configure and manage Middleware and web tools such as Apache, Tomcat, WebSphere, JBoss.
• Regular work involving building new Linux Physical and Virtual servers using kickstart and PXE.
• Strong knowledge of large - scale Linux deployment methodologies, kernel configuration, performance monitoring, and tuning.
• Resolving system Hardware and software errors and crashes, huge file sizes, file system full errors.
• Managed packages using RPM/YUM on RedhatLinuxand maintaining patching on Solaris servers.
• Experience in installing, configuring, supporting and troubleshooting Unix/Linux Networking services and protocols like NIS, LDAP, DNS, NFS, DHCP, FTP, SSH and SAMBA.
• Expertise in Installation, Configuration and file system management through VERITAS Volume Manager, VERITAS File System, Solstice Disk Suite and Logical volume Manager (LVM) with multiple RAID Levels.
• Problem determination and troubleshooting, Security using SSH.
• Installed and configured the Samba Server and Apache Web Server.
• Networking communication skills and protocols such as TCP/IP, Telnet, ftp, SSH, rlogin.
• Experience in Implementing and Supporting High Availability Cluster environments using Veritas Cluster andLinuxCluster services.
• Experience in using Configuration management software's like Chef, Puppet, Ansible and Docker for Automation.
• Involved in the Installation and configuration of an automation tool Puppet that included the installation and configuration of the Puppet master, agent nodes and admin control workstation.
• Experiences in Server build using Kickstart, Jumpstart, NIM and Ignite Process.
• Proficiency inVMWare. Installation and monitoring Virtual environments with ESXi 4.x/5.x/6.x Servers and Virtual Center.
• Expertise in implementation of Continuous Integration, Continuous Delivery, Continuous Deployment andDevOps processes for agile projectsExperience with CI Continuous Integration and CD Continuous Deployment methodologies using Jenkins/ Hudson.
• Skilled enough to build deployment, build scripts and automated solutions (using scripting languages such as Python, Shell, Bash.).
• Experience in branching, tagging and maintaining the version across the environments using SCM tools like Subversion (SVN), GIT, Visual SVN, and Tortoise SVN.
• Creating and Managing user accounts, system security, performance tuning, change management, Documents and procedures.
• Experience in compiling and tuning theLinuxKernel on database servers.
• Worked on Solaris to RedhatLinuxserver’s migration for various web, application, dns, mail and database servers.
• Developed scripts on Korn, C Shell Scripting, SED, and AWK for managing basic administration tasks.
• Experience in configuration management tool Puppet and Chef.
• Installation and configuration of Oracle server/client with backup and exp/imp dumps.
• Excellent skills in analyzing, designing, implementing and system integration, Knowledge on Switches, Routers, Firewalls, Intranet.
• Resolving system errors and crashes, huge file sizes, file system full errors.
• Experience in installing, maintaining and managing various rack mounted and Blade servers from Dell, Confidential, and IBM.
• Administering Microsoft Windows 2012, 2008 R2, Windows 2003, Windows 2000 and NT Server Environments, Active Directory, DNS, DHCP.
• Installation, Configuration and Administration of VMware ESXi 5.0, 5.1, 5.5, 6.0, 6.5, vCenter Servers and also patching, management and troubleshooting of VMware, and ESX Servers and also install, configure and troubleshoot Wintel and windows server domain.
• Implemented Rapid VM deployment preparing templates, cloning and exporting VM to OVF format.
• Worked extensively on Templates/Clones/Snapshots & Resource pools
• P2V and V2V migrations using tools likeVMwareconverter /Plate spin/Double Take.
• Worked on VMFS Data store, Host profiles, Storage profiles, Resource Management and Performance Monitoring.
• Configured scheduled tasks, alarms and alerts, CPU, Memory and Network Disk monitoring in VCenter.
• Done Patch Management of hosts and VM’s usingVMwareVCenter Update Manager.
• Production Support of various applications involving 24/7 on-call rotation.

TECHNICAL SKILLS

Operating Systems: RedHatLinux4/5/6/7, IBM-AIX 5.x/6.x/7.x, Confidential -UX 11.x, SUSELinux10/11, Ubuntu, Windows 2003, 2008 R2, 2012, VMware 4/5/6.

Hardware: Dell Power Edge server’s, Confidential Proliant server’s, Confidential DL 380 and 580, Cisco UCS B200’s

Tools: VERITAS (Volume manager, NetBackup, Cluster server),VMware(ESx, ESxi, Server and Workstation), Redhat Cluster, Veritas Cluster Server.

Languages: HTML, Java script, C, C++, Perl, Shell Scripting (Bash, Ksh), Python, Puppet, chef, ansible, devops.

Application Servers: Web Sphere Application Server, Netscape/iPlanet Server, MQSeries, WebLogic Server, IBM HTTP Server, HTML, DHTML, XML, Java Script, JVM, JSP, JBoss, Apache/Tomcat

PROFESSIONAL EXPERIENCE

Confidential, Houston, Texas

Systems Administrator

Responsibilities:

• Installed Patches/Packages and RPM packages on Linux Servers.
• Used Puppet for Continuous Delivery. Managed CI and CD process and delivered all application in rpms.Manage deployment automation using Puppet, andAnsiblescripts.
• Manage VMware Infrastructure clusters on Production Test/Development environments.
• Experience working with VMWare tools to manage VM's running on ESXi cluster nodes
• Configured and installed RedhatLinuxServers using jumpstart, Ignite and kickstart.
• Automated the work flow using shell scripts.
• Monitoring server performance and troubleshooting server related problems to SNMP.
• Processes administration and management like monitoring, start/stop/kill various processes/sub processes.
• Monitor system performance parameters using iostat, vmstat, and fine-tuning.
• Systems administration, maintenance, and monitoring various day-to-day operations.
• Creating and maintaining user accounts, profiles, and security rights.
• Installation/upgrade, system startup, and system shutdown as needed.
• Experience with RAID configuration, multipath, LVM management, VM disk management, NFS, CIFS, NAS
• Strong knowledge on networking concepts such as DNS, VLANs, Subnets, firewall; experience working with network utilities such as tcpdump, ss, netstat, route, ip addr, Wireshark, experience working with different models of Network cards, switches
• Working with different application teams to install apache, tomcat, WebSphere application server(WAS), Database teams such as Oracle, DB2,postgresql.
• Worked on building Veritas Clusters from scratch and performed failover and High Availability tests.
• Installation, Configuration and administration of DNS, LDAP, NFS, NIS, NIS+ and Sendmail on Red hat Linux/Debian Servers.
• Installed and configured VxVM, VxFS and VCS on various Servers.
• Configured probe and link based IPMP, worked with disk multipathing for SAN storage, configured and performed backups.
• User management with LDAP and setting up Kerberos authentication for cluster and creation of volumes.
• Installing and managing Java versions and deploying Java applications on Tomcat servers.
• Performed evaluation for established agile environment focusing on performance enhancement and direct coaching of scrum masters and teams.
• Installing and configuring of security networks like certificates using SSL and Apache Web Server.Worked with network team in configuring the networking protocols and correct VLANs for front-end, mid layer and Back-end servers.
• Managing cron jobs, at Jobs, batch processing, tuning system performance and job scheduling.
• Coordinate and work with the offshore team on several project tasks as well as with other cross functional teams in order to drive projects to a successful completion.
• Installing and configuring OS Watcher tools to gather data on disk utilization, CPU utilization, operating system and other applications.
• Tuning the kernel parameters based on the application/database requirement.
• Monitoring system resources, logs, disk usage, scheduling backups and restore
• Configuring SUDO and granting root permission to users for performing certain activities.
• Experience in Bash, Python and Perl scripts for backup and automation.
• Created and automated platform environment setup using puppet.
• Created BASH shell scripts to automate cron jobs and system maintenance. Scheduled cron jobs for job automation.
• Installed Puppet Master, agents, created and automated platform environment setup.Conceptual knowledge of DNS, DHCP.Installed several Virtual/Physical servers in Solaris/Linux.
• Working with Vendors such as Oracle and Symantec as and when necessary to trouble shoot server issues.
• Worked with SAN team on the provisioning of storage for the new build server and mounting the SAN and NFS storage to the filesystems with right permissions.
• Used VERITAS Volume Manager for Disk Space management.
• Installing and setting up Oracle clients on Linux/Solaris for the development team.
• Involved in the patching of several Solaris servers (both UFS and ZFS) with the latest patch clusters.
• Involved in the installation and configuration of several applications such as Tibco, IBM Websphere MQ, Oracle Golden Gate etc.
• Responsible for maintaining completeVMwareinfrastructure for the customer.
• Involved Datacenter server migration and SAN storage migration Activities.
• Responsible for upgrading the Virtual Machines,VMwareESXi hosts and vCenter servers in the organization.Installed and configured Linux virtual machines onVMwareinfrastructure.
• Created New Virtual Machines, cloning VM, DRS and Snapshots.
• Created and managed templates in VCenterServer migration from Physical to Virtual (P2V) and Virtual to Physical (V2P). Installation and configuration of Red Hat Linux on VSphere andVMwareESX.
• Created and managed Standard and Distributed Switches (dvSwitch) in the vCenter servers for making use of best network design and stability across the vCenter servers.
• Responsible for performing monthly patching on infrastructure servers.
• Responsible forVMwareand ESX patch management using vCenter update manager.
• Responsible for upgrading the Hardware version andVMwareTools version on the Virtual Machines.
• Migrated ORACLE RAC servers using system EMC Open migrator and effectively worked with the database team to bring up/down the databases.
• Expertise in file system concepts like LVM, SVM, VxVM. Creating new file systems, increasing and decreasing file systems, mounting file systems, unmounting file systems and troubleshooting Disk space issues.
• Efficiency in installing, configuring and implementing the RAID Technologies using various tools like VxVM and SVM.
• Involved in System Analysis and Performance Monitoring of Red Hat Linux.
• Implemented and monitored clustering on SPARC servers using Veritas Clustering.
• Installed and configured Sudo access for users to access the root privileges.
• Installed Application Agents on Virtual/Physical servers in windows 2008/2012/Linux/ Solaris.
• Configured devices by using HDLM software from Hitachi SAN.
• Setup of full networking services and protocols on Solaris, including NIS/NFS, DNS, SSH, DHCP, TCP/IP, applications, and print servers to insure optimal networking, application, and printing functionality.
• Deployed latest patches for Sun, Linux and Application servers.
• Integrating UNIX file systems using packages like SAMBA.
• Troubleshooting technical problems received through e-mail and BMC Remedy Ticketing Tool. Performing QA and Production changes following the Change Management procedures, generating reports.

Confidential

Unix/Linux/VMwareAdministrator

Responsibilities:

• Installation, configuration and upgrade of RHEL 5.x, 6.x,7.x, IBM AIX 7.1,8.x, Confidential UX, VMware 4.x,5.0,5.1,5.5, 6.0, windows 2008 R2, 2012 operating systems.
• Virtualized the servers using the Docker for the test environments and dev-environment needs.
• Configuration Automation using Puppet and Docker Containers.
• Built and Deployed web application server in an Agile continuous integration environment and also automated the whole process.
• Created continuous integration system using SVN, Ant, Jenkins, Puppet full automation
• Integrated Build Process through Jenkins to various SCM tools like GitHub.
• Perform daily system monitoring, verifying the integrity and availability of all hardware, server resources, systems and key processes, reviewing system and application logs, and verifying completion of scheduled jobs such as backups.
• Implemented SCM tools i.e. GIT, Stash Repositories, Source tree, views, and the access control strategies.
• Deploy and monitor scalable infrastructure on Amazon web services (AWS) & configuration management usingAnsible.
• Integrated delivery (CI and CD process) using Jenkins and Puppet.
• Build application and database servers using AWS EC2 and create AMIs as well as use RDS for Oracle DB. Written shell scripts for automating logs backup and archiving.
• Installation and configuration of Veritas Volume Manager (VXVM), Veritas file system (VFS).
• Performed configuration and troubleshooting of services like NFS, NIS, NIS+, DHCP, FTP, LDAP, Web servers, Samba server, Apache server.
• Built high-end servers, creating and loading images onLinuxservers.
• Patch and Package administration for installation of patches as per company policy and installation of packaged application.
• Installed, configured and maintained Redhat Cluster Suite (RHCS), Veritas Cluster Server (VCS) and Confidential Service Guard in multimode active/active and active/passive configuration. Added and maintained service group/packages. Added/removed node to/from existing cluster set.
• Performed package and patching management and debugging in all flavors of Unix&Linux
• Troubleshooting and analysis of hardware and failures for various Unix/ (Core dump and log file analysis).
• Implementation of RAID techniques and creation disk groups and volumes, using Veritas Volume Manager. Managing disks and file system using Veritas Volume Manager(VxVM).
• Used configuration management tool puppet to automate server configuration.
• Installed, configured and managed Oracle Real Application Cluster (RAC) in Linux, Solaris and Confidential -UX servers.
• Setup and Configuration of Puppet, Chef Configuration Management.
• Expertise in Global File System (GFS), Creating, configuring and managing clusters in RedhatLinuxServers using GFS.
• Worked with security patches on production servers.
• RPM package administration using RPM Build.
• Worked with automation using ansible on production servers.
• Configured and managed Red hat satellite Network server, performing package management tasks and errata updates.
• Administrated server consolidation program through use of VMware ESX server and VMware Virtual Center, using Virtual Center, ESX, creating VMs, using/building VM templates and customization files, and scheduling tasks.
• Installed VMware ESX server 5.5/6.0 and created virtual machines on ESX Servers.
• Configuring HA/DRS related advanced configuration settings per VMware Best practices
• Configuring VMFS based storage in virtual center.
• Installation and Configuration vCenter HeartBeat for vCenter failover and FailBack Purpose.
• Huge P2V Experience usingVMwareconverter running different applications with Different Hardware.
• Migration and P2V conversion Experience on many applications like SQL Server, Exchange running on Windows and some applications running on Linux Redhat and SUSE and VMkernel Linux appliances.
• Experience on Host Profiles, Distributed Switch, DRS, VMotion, SV-Motion, Resource pools, permissions, Patches, Snapshots, Tools Upgrade, disk expansions, Templates, and many more.
• Building Windows 2008 Servers and upgrading Windows 2003 on both physical and virtual machines.
• Installing and configuring theVMwareVSphere and creating clusters for High Availability (HA) and Dynamic Resource Scheduling (DRS).
• Experience in configuring and setting up Confidential ILO for physical Confidential servers.
• Upgraded 150+ ESX hosts from ESX 4.0 to ESX 5.0 and 5.1 using VMware Update Manager tool.
• Installing vSphere 5.0/5.1 on half blade and full blade servers on Cisco UCS.
• Create Snapshot and test Rollback, configure VMotion, Cluster and Failover.
• Participated in development and maintenance of Disaster Recovery & Backup.
• Resource Management- ConfiguringVMwareHA,VMwareDRS Clusters for VMotion- migrations between ESX Servers.
• Updated the Patches for ESX Servers usingVMwareUpdate Manager in Virtual Center.

Confidential, Mooresville, North Carolina

Linux/UNIX/VMware System Administrator

Responsibilities:

• Installation, configuration and upgrade of RedhatLinux3/4/5, AIX 5.3, VMware 4/5 operating systems.
• Configured and installed RedhatLinuxServers using jumpstart, Ignite, and Kickstart.
• Extensive use of Logical Volume Manager (LVM), creating Volume Groups, Logical volumes and disk mirroring in Confidential -UX, AIX andLinux.
• Worked on installing and configuringVMware/ESX Servers for virtualizations.
• Configured LinuxBonding. Worked on Storage multipathing.
• Responsible for writing, maintaining and documenting UNIX scripts to support smooth running of applications on the production servers.
• Supported Oracle RAC (Real Application Cluster) Servers running onLinuxwith GFS
• Create automated Jumpstart environment for linux standard builds for WEB, APP and DB servers.
• Extensively involved in troubleshooting bottlenecks of Memory, CPU, Devices and Network using ps, vmstat, iostat, netstat, sar, snoop, nfsstat and sar commands, tuning the performance.
• Package management using RPM, YUM and UP2DATE in Red HatLinux.
• Developed technical documents like handbooks, document installation configurations, and proposed resolutions for support processes.
• Worked on Confidential Open View Service Desk (OVSD) tickets. Raised tickets for any issues discovered during validation.
• Communicate with the user community and co-workers to assess needs, resolve problems, and provide technical assistance where necessary relating to UNIX administration functions, and software running on UNIX platforms such as Apache, WebSphere and Oracle9iAS and COTS third party software.
• Installing and Managing ESX and ESXi Servers on Confidential & Cisco hardware.
• Timely update of patches, drivers and firmware's on all ESXi hosts.
• P2V and V2V conversions by usingVMwareConverter, Double Take, Recovery Point Approach.
• Administration ofVMwareESX and ESXi Servers on Cisco UCS, Confidential Chassis 7000, DL380P GN8.
• Performing VMotion and storage VMotions, Creating Clusters for High Availability and Dynamic Resource Scheduling, HA, DRS.
• Played a vital role in Creating Virtual Machines, Cloning virtual machines, converting P2V(used standardVMwareconverter tool), VM-Provisioning (Linked clones, thin disks, de-duplication ) taking Snapshots of virtual servers. Experience on creating host profiles and deploy to hosts in aVMwareclusters.
• Experience in installing and configuring Microsoft Windows 2008 Servers from ILO management tool on Rack servers and blades. Experience with vSphere Host Profiles, Standard and Distributed Switches setup.
• LUN creation and storage mapping administration and configuring Multipathing.
• Build, configure and deploy Microsoft Windows 2008, 2008 R2, and 2012 Virtual and Physical servers using Blade logic and MDT.Perform P2V and V2V conversions usingVMwareConverter and PlateSpin.
• Provide Server administration and technical support for Windows 2008 R2 and 2012 Servers like Guest operating system issues, Disk expansion, adding CPU, increasing VM Memory etc.

Confidential, Austin, Texas

System Administrator (Linux, VMware, Windows)

Responsibilities:

• Extensively worked on server build, Configuration and Administration of Sun/ Confidential /Dell servers from scratch with OS Linux(Red Hat, Confidential UX & SuSE).
• Performed configuration, monitoring, support, tactical planning of rollouts, migrations, and day-to-day management of the Confidential server infrastructure.
• Automated server building using System Imager, Kickstart and Jumpstart on Sun and Ignite on Confidential servers
• Configuring and troubleshooting SAMBA SERVER INLinux.
• Monitoring Server performance and troubleshooting server related problems.
• Worked with database administration staff to ensure optimal performance of databases, and maintain development applications, databases, and ensure database backup completed successfully.
• Implementation of RAID techniques and the creation of Disk groups and volumes using VERITAS Volume Manager 4.1, solstice Disc Suite and logical volume manager for managing disks and file systems
• Installing operating system patches, packages, system customization and documentation
• Implemented Red Hat Cluster Suite with GFS and RHN Satellite Server in the Development and Production environments
• Configured and implemented NIS, DNS master Slave servers along with required clients
• Building, Installing and configuring Veritas Cluster Server and Confidential MC service Guard
• Associated with DBAs for installation of Oracle database (RAC) onLinuxservers & for tuning, backup and restore
• Experience with EMC Storage on Solaris andLinuxservers (i.e. familiar with Navisphere, Access Logix, Host Agent, Power Path, Snapshot and Cloning, SAN Copy
• Setup and maintain Logical Volume Manager (LVM), Created Physical volumes, Volume groups, Logical volumes and Mirrored root Disk
• Installed, configured and maintaining services Apache, Web servers.
• Configured ESX 5.x, 4.x with SAN Attached storage (LUN Assignments, Data stores)
• UtilizedVMwareConverter for Physical to Virtual/Virtual to Virtual conversion/Physical to Physical conversion.
• Address Production issues related to windows andVMwareenvironment like Guest operating system, Disk expansion, adding CPU, increasing VM Memory.
• Creating Virtual switch and configuring Virtual switch settings and policies
• Involved in P2V, V2P Migration using Stand AloneVMwareConverter Server and Plate Spin.
• Managing and implementing various projects with all phases of life cycle for virtualization.