SUMMARY:

• 8+ years of IT industry experience as a System Administrator managing RedHat Linux (RHEL) 4/5/6/7, Windows 2003/2008 R2/2012, VMware 4/5/6 environment.
• 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 Redhat Linux and 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.
• Configure and manage Middleware and web tools such as Apache, Tomcat, WebSphere, JBoss.
• 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 and Linux Cluster services.
• Experiences in Server build using Kickstart, Jumpstart, NIM and Ignite Process.
• Proficiency in VMWare . Installation and monitoring Virtual environments with ESX 4.x/5.x Servers and Virtual Center.
• Creating and Managing user accounts, system security, performance tuning, change management, Documents and procedures.
• Experience in compiling and tuning the Linux Kernel on database servers.
• Worked on Solaris to Redhat Linux server'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.
• Worked with Ansible playbooks for virtual and physical instance provisioning, configuration management, patching and software deployment.
• Deployed Docker Engines in Virtualized Platforms for containerization of multiple apps.
• Worked in infrastructure team on installation, configuration and administration of CentOS 5.x/6.x/7, Red Hat Linux 8/9, RHEL 5.x/6.x/7, Red Hat Satellite 6, Windows Server 2008-R2/2012-R2 and SUSE Linux 10.x/11.
• Experience in Package Management using Red Hat RPM/YUM and Red Hat Satellite server.
• Experience in System Administration, System Builds, Server builds, Installs, Upgrades, Patches, Migration, Troubleshooting, Security, Backup, Disaster Recovery, Performance Monitoring and Fine-tuning on UNIX Red Hat Linux Systems.
• Extensively worked With VMware ESXi 5.1/5.5/6.0, vCenter Server, Host Clustering with HA, DRS, Replication Manager 5.x/6.0, Site Recovery Manager, vMotion, Physical to Virtual Migration and Managing SAN Datastores with, iSCSI, NFS & FC.
• Experience working with Puppet Enterprise and Puppet Open Source. Installed, configured, upgraded and managed Puppet Master, Agents & Databases. Integration of Puppet with Apache.
• Developed shell scripts (Korn, C Shell), Oracle, SQL Server, PL/SQL, PERL and Java Script.
• Experience in installing, maintaining and managing various rack mounted and Blade servers from Dell, HP, and IBM.
• Administering Microsoft Windows 2012, 2008, 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, vCenter 4.0 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 like VMware converter /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 using VMware VCenter Update Manager.
• Production experience in large environments using configuration management tools Chef, Ansible, and Puppet supporting Chef Environment and involved in developing manifests. Developed Chef Cookbooks to manage systems configuration.
• Extensively worked on Chef Roles, Cookbooks, Recipes, Templates, Resources, Attributes & Data bags. Proficient in the setup of Chef servers, workstations & bootstrapping infrastructure Chef nodes for configuration management.
• Extensively worked on Ansible Playbooks, Inventory files, Vault feature to configure the servers, deploy software, encryption of data file & orchestrate continuous deployments or zero downtime rolling updates. Worked on Ansible Tower which provides an easy-to-use dashboard, & role-based access control.
• Experience in Backup Tools like NetBackup, Veeam Backup and Replication Suite.
• Installed, Configured, Managed Monitoring Tools such as Splunk, Nagios, iCinga for Resource Monitoring/Network Monitoring/Log Trace Monitoring.
• Expertise in writing Bash Scripts, Pearl Scripts (hash and arrays), Python programing for deployment of Java applications on bare servers or Middleware tools.
• Implemented Puppet agent based & agentless configurations, Puppet dashboards, MCollective with active MQ server, plugin-sync, stored configs, Hiera, Facter and wrote Puppet manifests.
• Good Understanding and implementation experience of CI/CD pipelines using Jenkins, automation programmatically by creating Jenkins jobs and pipelines and solving various problems with ANT, Maven, and Gradle as plugins.
• Extensively Used Jenkins as Continuous Integration tools to deploy the Spring Boot Microservices to Pivotal Cloud Foundry (PCF) using build pack.
• Experience with Version Control Systems like GIT, CVS, SVN (Subversion), and good understanding of other tools like Bitbucket, Perforce, TFS and IBM Bluemix.
• Worked with Application Performance Monitoring (APM) tools like AppDynamics for monitoring JAVA, .NET and PHP applications along with New Relic for monitoring performance like browser and for tracking issues in SQL statements.
• Strong experience in using Build Automation tools like ANT, Maven, Gradle and hands-on experience with other build tools like MSBuild Makefile.

EXPERIENCE:

Confidential, ESTERO, FL

UNIX/LINUX/ VMWARE ADMINISTRATOR

Responsibilities:

• Installation, configuration and upgrade of RHEL5.x, 6.x,7.x, IBM AIX 7.1,8.x, HP UX, VMware4.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 using Ansible.
• 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, and Apache server.
• Built high-end servers, creating and loading images on Linux servers.
• 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 HP 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) inLinux, Solaris and HP-UX servers.
• Setup and Configuration of Puppet, Chef Configuration Management.
• Expertise in Global File System (GFS), Creating, configuring and managing clusters in Redhat Linux Servers 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 using VMware converter 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 the VMware VSphere and creating clusters for High Availability (HA) and Dynamic Resource Scheduling (DRS).
• Experience in configuring and setting up HP ILO for physical HP 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- Configuring VMware HA, VMware DRS Clusters for VMotion- migrations between ESX Servers.
• Updated the Patches for ESX Servers using VMware Update Manager in Virtual Center.

Confidential, COLUMBUS, OH

UNIX/LINUX/ VMWARE ADMINISTRATOR

Responsibilities:

• Installation, configuration and upgrade of RHEL 5.x, 6.x, IBM AIX 7.1, HP UX, VMware4.x,5.0,5.1,5.5, windows 2008 R2, 2012 operating systems.
• Configured and installed Redhat Linux Servers using jumpstart, Ignite and kickstart.
• 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 on Linux servers.
• 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 HP 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& LinuxTroubleshooting 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 HP-UX servers.
• Setup and Configuration of Puppet, Chef Configuration Management.
• Expertise in Global File System (GFS), Creating, configuring and managing clusters in Redhat Linux Servers 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 5.0/5.1 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.
• Involved in operational support of Active Directory, WINS, DNS, and AD enabled applications.
• Experience in configuring and setting up HP ILO for physical HP 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- Configuring VMware HA, VMware DRS Clusters for VMotion- migrations between ESX Servers.
• Updated the Patches for ESX Servers using VMware Update Manager in Virtual Center.

Confidential, JACKSON, MI

LINUX /UNIX/ VMWARE SYSTEM ADMINISTRATOR

Responsibilities:

• Installation, configuration and upgrade of Redhat Linux 3/4/5, AIX 5.3, VMware 4/5 operating systems.
• Configured and installed Redhat Linux Servers using jumpstart, Ignite, and Kickstart.
• Extensive use of Logical Volume Manager (LVM), creating Volume Groups, Logical volumes and disk mirroring in HP-UX, AIX and Linux.
• Worked on installing and configuring VMware /ESX Servers for virtualizations.
• Configured Linux Bonding. 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 on Linux with 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 Hat Linux.
• Developed technical documents like handbooks, document installation configurations, and proposed resolutions for support processes.
• Provide technical assistance to the application development area and co-workers about system analysis, design and programming.
• Worked on HP Open View Service Desk (OVSD) tickets.
• Planning to upgrade the vSphere 5.5 environment to 6.0 soon with two external PSC's in the new environment
• Created a design document on what roles and permissions need to be created for users in the new vSphere 6.0 environment
• Raised tickets for any issues discovered during validation.
• Installing and Managing ESX and ESXi Servers on HP & Cisco hardware.
• Timely update of patches, drivers and firmware's on all ESXi hosts.
• Administration of VMware ESX and ESXi Servers on Cisco UCS, HP Chassis 7000, DL380P GN8.
• Working on updating / upgrading ESX servers, Virtual Center servers and windows virtual machines usingVMware Update manager and manual upgrades.
• 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 standardVMware converter tool), VM-Provisioning (Linked clones, thin disks, de-duplication ) taking Snapshots of virtual servers.
• Experience on creating host profiles and deploy to hosts in a VMware clusters.
• 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.
• Deployed Chef Dashboard for configuration management to infrastructure.
• Involved in Building and configuring Red Hat Linux Servers using Kickstart server as required for the project.
• Implemented Nagios monitoring solution for mission critical server. Monitored the server and application using Nagios, and Splunk.
• Implemented and configured Nagios for continuous monitoring of applications in the production environment and enabled notifications via emails and text messages. Wrote Unit test cases for unit, integration, and functional tests, run automatically by Hudson/Jenkins in the builds triggered by each push to GIT.
• Automate the code review process and published the results on Jenkins as well the graph by comparing everyday nightly builds
• Managed GIT repositories for branching, merging, and tagging.

Confidential, JACKSONVILLE, FL

SYSTEM ADMINISTRATOR (LINUX, VMWARE, WINDOWS)

Responsibilities:

• Extensively worked on server build, Configuration and Administration of Sun/HP/Dell servers from scratch with OS Linux (Red Hat & SuSE)
• Performed configuration, monitoring, support, tactical planning of rollouts, migrations, and day-to-day management of the HP server infrastructure.
• Automated server building using System Imager, Kickstart and Jumpstart on Sun and Ignite on HP servers
• Configuring and troubleshooting SAMBA SERVER IN Linux.
• 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
• Configuring and managing Cisco UCS Service Profiles, vNIC/vHBA interfaces, MAC/WWPN/WWNN identity pools, various Servers, Network and Storage related policies. Cisco UCS Fabric Interconnect upstream connectivity with Cisco Nexus 5548 for LAN and MDS9148 for SAN.
• 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 HP MC service Guard
• Associated with DBAs for installation of Oracle database (RAC) on Linux servers & for tuning, backup and restore
• Experience with EMC Storage on Solaris and Linux servers (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)
• Utilized VMware Converter for Physical to Virtual/Virtual to Virtual conversion/Physical to Physical conversion.
• Address Production issues related to windows and VMware environment like Guest operating system, Disk expansion, adding CPU, increasing VM Memory. Creating Virtual Machines, updating VMware tools, VMware Hardware, Virtual disk and memory expansion.
• Configuring HA for VERITAS Cluster Server NFS, send-mail and MQ series.
• Creating Virtual switch and configuring Virtual switch settings and policies.
• Involved in P2V, V2P Migration using Stand Alone VMware Converter Server and Plate Spin.
• Managing and implementing various projects with all phases of life cycle for virtualization.