SUMMARY:

• A high - performer who has demonstrated flexibility, attentiveness, and technical knowledge in an agile Unix/Linux environment resulting in value-creation for clients and key stakeholders. I am open to a more fulfilling and challenging opportunity where my skill-sets can be utilized.
• Linux, Solaris and VMware Technology Professional having 7+ years of I.T. experience in Red Hat Enterprise Linux 5/6/7, Solaris 8/9/10, ESXi 3/4/5/5.5, Windows 2003/2008, SUSE 9/10/11 and SAN Storage
• Expertise in deploying various Red Hat Enterprise Linux/SUSE Linux builds both Physical and Virtual on HP/CISCO/IBM/ Confidential Hardware running ESXi.
• Experience in RHEL provisioning, Upgrades, Patching, Configuration and Performance Tuning in Linux, Solaris and VMware environments.
• Experience in deploying and creating new RHEL VM guests with utilizing Red Hat Satellite Server as well as Customized ISO Images and templates
• Expertise in designing build/configure documentation related to Red Hat Enterprise Linux via Kickstart/PXE and Red Hat Satellite Server/Cobbler/Puppet.
• Expert in Server Builds, Installs, Upgrades, Patches, Configuration and Performance Tuning in Red Hat Linux and VMware environments.
• Expertise in creation of RHEL and Windows 03/08 servers utilizing templates, custom ISO's and Power CLI scripts.
• Have exposure to various tools and technologies such as Veritas Volume Manager, Veritas Netback Up, Samba, RAID technology and Admin tool.
• Managed the use of disk space, memory, network segments & other communication devices.
• Created and Managed File Systems (CFS) for Oracle & Sybase data bases.
• Worked on Solaris 8/9/10 upgrade projects and have expertise with Zone Configuration and ZFS file systems.
• Worked on weblogic and MQ series configuration and application deployments.
• Ability to learn new and existing hardware and software and adapt to new environments
• Administrating software Package like adding, deleting of software packages in Solaris.
• Adding software patches in Solaris.
• Maintained complete failover systems through the use of Veritas Volume Manager, creating duplicate environments which could take over in case of primary system failure.
• Expertise in deployment of Java Applications using JBoss/Oracle Weblogic and Tomcat Application Server.
• Participated in Data center migration from one physical location to another and Physical to Virtual (P2V) server migration.
• Proven ability to automate server builds using kick start, management and configuration of system services using Puppet
• Maintained Puppet-based configuration management in operational and production environments
• Proven ability to automate server builds using kick start, management and configuration of system services using Puppet.
• Expert in load balancing techniques and knowledge of puppet tool.
• Build automatic provisioning system with Kickstart and Puppet
• Experience in implementing Kernel Based Virtualization (KVM).
• Experience in supporting and configuring LINUX servers running Hadoop
• Experience building Hadoop servers and configuring them as Kafka/Storm Nodes per the hadoop team requirement.
• Responsible for running blade logic jobs to install Java and other packages on servers
• Good knowledge of HP Openview, Service Now, JIRA, Remedy and Maximo
• Experience working on AWS infrastructure..
• Configured Kernel Parameters for application/databases to meet organizational needs.
• Working with the Operations team to develop policies and procedures to address network outages and infrastructure overload issues that cause high latency and drop in client connection success rates.
• Experience writing bash shell scripts to automate day to day tasks for monitoring and for any Red Hat Enterprise Servers Resource Allocation.
• Works closely with Java Team to deploy JBoss applications and troubleshoot various Applications/DB related issues.
• Good Understanding on the JVM, garbage collection, heap fragmentation and configured resources like JDBC providers, JDBC data sources, connection pooling.
• Implemented and Enhanced the Existing Scripts which are developed in Shell, Perl, and PowerCLI.
• Experience in Providing 24x7 On call Production Support
• Experience in implementation of FTP, NFS, NIS, DNS, DHCP, LDAP, SMTP and SAMBA servers.
• Experience in installing, configuring and maintaining Application Server like Web Sphere and Web Servers like Web Logic, Apache HTTP and Tomcat on UNIX and Linux.

TECHNICAL SKILLS:

Operating Systems: RHEL 4/5/6/7, SUSE 9/10/11, Solaris 8/9/10, Windows 2003/2008,CentOS, Windows

Virtualization/Automation: ESXi 3.5, 4.0, 4.1, 5.0. Solar Winds Suite, VCOPS, Jenkins, Chef

Storage: VERITAS Volume manager 3.5 and 4.x, Logical Volume Manager, Tivoli (TSM), VERITAS NetBackup4.5, EMC Power Path, EMC Symmetrix, Hitachi, IBM arrays, Storage-TEK L700, Confidential Power Vault.

Cluster: Veritas Cluster Server (VCS), Vmotion, Hadoop

Web Servers: Apache1.3.x, 1.2, 2.x, JBoss4.0.x, Web Logic, Web Sphere, ATG, Java Web Server, Virtual Hosting, Spelunk 5.0s, Nix, LAMP stack, Tomcat, IIS 5.0/ 4.0, SAMBA v3.0, Drupe, Send mail.

Database Servers: Oracle8i/9i, 10g, 11g, RAC, MS SQL

Network Services: SMTP, SNMP, SSL,DHCP, POP, HTTP, SMB, NIS, NIS+, NFS, SFTP, DNS, FTP/TFTP, LDAP, JDBC, ARP/RARP, SSH, TCP/IP, WEBSM, NAT, NTP, TELNET.

Hardware: HP BL 460, 620 s, 680, C7000. Sun T2 s/T3 Confidential Power Edge Servers,730 Confidential 2300, 2400, 2450,2850,2950,6300.

Scripting: Bash, KSH, CSH, Power CLI, Perl Scripting, Python, Ruby, PHP, Shell

PROFESSIONAL EXPERIENCE:

Confidential, Dallas, TX

Linux/DevOps Administrator

Responsibilities:

• Worked on variety of Linux platforms Red Hat Enterprise Linux 5.x/6.x/7.x,CentOS, which includes installation, configuring and maintenance of applications on this environment.
• Schedule, plan, and support code deployments from TEST environment to PROD environment.
• Perform Application Maintenance, Performance Tuning, Upgrades, OS Backups, Migrations, User Account Maintenance, Storage Management, Patch Management and all other daily system administration functions.
• Setup and Configured Red Hat Satellite and Kickstart Servers for Red Hat Enterprise Linux 5/6 installs and RHN Push Updates.
• Provided 24/7 support in a 99.999 environment to maintain maximum uptime and ensure server reliability.
• Deployed Puppet for configuration management to existing infrastructure.
• Deployed Puppet for automated management of machine configurations.
• Configured Ansible to manage AWS environments and automate the build process for core AMIs used by all application deployments
• Development of test framework using Python
• Backend scripting/parsing using Perl and Python
• Responsible for Ruby backend development for dynamic database driven website
• Created runtime Ruby files using Rails framework
• Build servers using Kick Start, Red Hat Satellite Server, Spacewalk, and vCenter, vSphere Client.
• Create different profiles like stand alone Profile, Custom profile and Deployment Profile.
• Day to day deployment of plug-ins using Jenkins for new code deployments in non-prod and production environments.
• Configured and supported MySQL databases, Apache Webserver, JBoss 6/7 Application Servers.
• Troubleshoot any performance or configuration issues/incidents with Apache Webservers and engaging Middleware teams to troubleshoot JVM issues.
• Utilized Jenkins to deploy and support Java based applications into the production environment.
• Deployed and configured Red Hat Satellite Server 5.4/Spacewalk, including creating maintaining any Customized kickstart configuration channels to deploy RHEL.
• Responsible for Load balancing and Performance tuning for various JBoss 6/7 Instances.
• Configured Clusters and managed servers for improved availability and failover capacity to ensure maximum reliability on JBoss 6/7.
• Configured Apache HTTPD 2.2 servers with back-end JBoss 6/7 JVM's and maintained in Pre-Prod and Production environments.
• Installed packages, patches and SSL certificates on all web servers.
• Hardware licensing configurations to work with 3rd party vendors to ensure highest level of support.
• Wrote and designed server modification and environment based Perl/BASH scripts to manage over 500 Servers.
• Configured and administered NFS, SYSLOG, DNS, NIS, NIS+, SUDO, TSM Packages, and LDAP on RHEL server environment.
• Experience in Multiple Environments (Financial Management and Plan Management.
• Monitor system throughout via NEW RELIC/SPLUNK to ensure systems vulnerabilities do not exist.
• Trouble-shoot vulnerabilities and communicate issues to upper management.
• Ensure that all environments are functioning correctly with health-checks and function ability flows.
• Actively communicate with client(s) and/or stakeholders via email or the Bridge and e-mail.
• Create and track Change Requests for completion in REMEDY.
• Managed CALT Jenkins/XOC Jenkins with Ant and Maven to perform the build as requested by OPS and deployment teams.
• Analyzing system logs and identifying potential issues with servers and Desktops.
• Using JIRA to update/track daily activates.
• Worked with Red Hat Satellite Server to push changes across various servers simultaneously.
• Providing Production support on a 24x7 basis.

Confidential, Round Rock, TX

Linux / Solaris Administrator

Responsibilities:

• Installation, Configuration, Maintenance and Administration of Red Hat Enterprise 3/4/5/6, Solaris 9/10 and SUSE Enterprise Linux.
• Installing and configuring ESXi 4/5 using custom based ISO's and Virtual Media based installs on several hundred HP DL 580's, 380's, 980's, BL-460's, 620's, and 680’s as required for UAT/Production.
• Deployments of Windows 2003/2008/ RHEL/ SUSE deployments.
• Installation of ESXi 5.0 Hosts, vCenter Server, vCenter update manager and administering VM's across 6 Datacenters running 8000+ VM's.
• Deploying VMware vSphere 5 by upgrading VMware infrastructure 4.1.2 to vSphere 5 and also upgrade Experience from VMware vSphere 4.0 to Update.
• Setup and Configured Red Hat Satellite/Cobbler/Puppet/Kickstart Servers for Red Hat Enterprise Linux 5/6 installs and RHN Push Updates.
• Deploy and Configure Red Hat Satellite Server 5.4/Spacewalk, including creating maintaining any customized kickstart configuration channels to deploy RHEL.
• Installing and updating packages using YUM (custom YUM Servers/repositories), Red Hat Satellite Server.
• Configuring and troubleshooting of JBoss application Server, Apache HTTP Server and MySQL
• Specialized in automating tasks and process through scripts, implementing branching models, Implementing Build/Release solutions.
• Resolved and completed various maintenance tasks on UAT/Production servers and Apache software issues.
• Responsible for OS patching, security patching, firmware upgrade and all upgrades on Red Hat Linux servers using Satellite server.
• Troubleshooting Day - to-Day issues on various servers with different platforms.
• Configuration management with puppet.
• Create puppet automation to manage configuration and deployment of new applications
• Built Puppet manifests and bootstrap scripts to allow bootstrap of instances to various roles
• Configuration, Administration and Maintenance of NFS, DNS, NIS & NIS+ on Linux Servers.
• Responsible for Patches for the operating system, building startup shell scripts, managing the automation of cron jobs and managing file systems.
• Responsible for designing High Availability Solutions for different applications, using VERITAS Clusters/ Storage Foundation Suite.
• Implementing & troubleshooting NFS in Prod/ QA/ Dev environment.
• Setup virtual host for new application setup and creating documents.
• Working on evaluating new hardware and software.
• Installed/setup and maintained Splunk app for various platform of Operating system.
• Experience in System Administration Driver Configuration.
• Familiarity with message brokers such as ActiveMQ and/or RabbitMQ.
• Understanding of common data structures (arrays, hash tables, trees, linked lists).
• Hashing and cryptographic techniques.
• Configuring different systems such as: Oracle ASM (RAC), VCS and CFS, and middleware applications.
• Production Support for 600+Linux Servers
• Customizing the applications according to the business requirements.
• Involved in troubleshooting the performance issues related to web application running on virtual machines
• Responsible for Connectivity Issues among various Servers and Switches and also responsible for installation of various hardware components on various servers.

Confidential, Livonia, MI

UNIX/ Linux Administrator

Responsibilities:

• Assisted in physically installing, racking and cabling new Linux/Solaris Hardware..
• Performed Server s consolidation and Virtualization using VMware virtual infrastructure, VMware ESX, Virtual Center.
• Provided support for JBoss 4.0.x and Apache, applications for operation related to installation and configuration.
• Analyzing system logs and identifying potential issues with servers and Desktops
• Responsible for the implementation, administration and maintenance of Oracle Financials running on a Sun Solaris and a Red Hat Enterprise Linux.
• Configured ESX 4.0 with SAN Attached storage (LUN Assignments, Data stores)
• Analyzing system logs and identifying potential issues with servers and Desktops
• 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.
• Utilized VMware Converter for Physical to Virtual/Virtual to Virtual conversion/Physical to Physical conversion.
• Maintaining backups and restores of the Production and Development data.
• Network Attached Storage Implementations.
• Windows Server and Desktop administration.
• Installing Patches and Packages on RedHat Linux and Solaris servers
• Prepared Technical Design Specification Documents (TDS) and SOW required for data center migration.
• Applying software maintenance, program fixes and keeping the system software releases current.
• Experience in analyzing logs, problem determination, and Recovery and restart.
• Configured SSH for secure telnet and FTP connections.
• Document installation procedures, changes required in present environment.
• Respond to emergency calls relating to server performance, diagnosis of problems, repairing problems or calling upon appropriate vendors to resolve the issue.
• Preparing monthly work status report.
• Updating technology specific documents.
• Fine tuning of Servers and configuring networks for optimum performance.
• Organized various meetings with teams as mentioned above for tracking their requirements as inputs to get this done and designed the plan/steps involved and took user approvals.