SUMMARY

• 7+ years of experience in Installation, Configuration, Management of Linux OS (RHEL, CentOS, Ubuntu), Amazon Web Services, Windows Servers in an Agile environment and automation of OS in a DevOps environment such as DEV, TEST, STAGE & PROD.
• Experience in Installing Jenkins/Plugins for GIT Repository, Setup SCM Polling for Immediate Build with Maven and Maven Repository (Nexus Artifactory) and Deployment of apps using custom modules through Puppet as a CI/CD Process.
• Experience in System Administration, System Builds, Server builds,Installs, Upgrades, Patches, Migration, Troubleshooting, Security, Backup, Performance Monitoringand Fine - tuning on UNIX Red Hat Linux Systems.
• Extensive experience using MAVEN and ANT as build tools for the building of deployable artifacts (jar, war & ear) from source code.
• Managed all the bugs and changes into a production environment using the Jira tracking tool.
• Performed Servers consolidation and virtualization using VMware virtual infrastructure, VMware ESX, Virtual Center, VM tools.
• Created Custom as well as downloaded pre-written Modules and Manifests, Worked and utilizedPuppethierarchy files, facts, and global variables.
• Experience in working on source control tools like Tortoise SVN, CVS, IBM Clear Case, Perforce, and GIT.
• Involved in creating and configuring profiles, clusters, nodes, node agents for WebSphere Application Server.
• Performed Servers consolidation and virtualization using VMware virtual infrastructure, VMware ESX, Virtual Center, VM tools.
• Implemented Continuous Integration and Continuous Deployment and promoted enterprise solution deployment assets to target environments.
• Created theClustering Topologyin WebSphere Application Server ND V6.x to achieveWork Load Management (WLM), High availability, Load Balancing and Hardware fail over.
• Experience in working with cloud tools like Amazon Web Services (AWS) and good knowledge of AWS services like EC2, AMI, S3, Glacier, Elastic Load Balancer (ELB), RDS, SNS, SWF and EBS.
• Experience in managing servers on the Amazon Web Services (AWS) platform instances using Puppet, chef, Ansible configuration management.
• Extensively worked on Continuous Integration and deployment using various CI/CM Tools like Jenkins, Puppet, Chef, Ansible, Hudson, Bamboo.
• Extensive experience in building & deploying EAR, WAR, JAR files on test, stage & production servers.
• Experience in Installation and configuration of monitoring tools Nagios for monitoring the network bandwidth and the hard drives status.
• Installed, configured and maintained Rational ClearCase and ClearQuest in Windows and UNIX environment.
• Provided online support to offshore developers on ClearCase/ClearQuest tools in a Multisite environment and solved issues related to branches/merging operations.
• Good experience in working with a team together to deliver best outputs in given time frames.
• Supported the application in production and worked closely with off-shore teams.
• Excellent interpersonal skills, ability to interact with people at all levels.

TECHNICAL SKILLS

CI/CM Tools: Bamboo, Hudson, Jenkins,Puppet, Ansible andChef.

Cloud Tools: AWS

Build Tools: Cruise Control, ANT, MAVEN and TeamCity, Build forge, Nexus.

Scripting: Perl, Shell, Python, Bash, Ruby.

Web Technologies: Servlet, JDBC, JSP, HTML, JavaScript, XML, EC2, RDS, Elastic search.

Web servers: WebLogic, WebSphere, Apache Tomcat, JBOSS, Geritt.

Versioning Tools: CVS, Tortoise SVN, ClearCase, GIT.

RDBMS: Oracle, SQL SERVER, MYSQL, DB2

Operating Systems: Windows, UNIX, LINUX (RHEL).

Bug Tracking Tools: JIRA, Remedy, HP Quality Center, IBM Clear Quest, Mingle

PROFESSIONAL EXPERIENCE

Confidential, Shelton, CT

Linux Admin / Cloud Admin / DevOps Engineer

Responsibilities:

• Installed Jenkins/Plugins for GIT Repository, Setup SCM Polling for Immediate Build with Maven and Maven Repositoryand Deployed Apps using custom modules through Puppet as a CI/CD Process.
• Installed/Configured/Managed Puppet Master/Agent. Wrote custom Modules and Manifests, downloaded pre-written modules from puppet-forge. Upgradation or Migration of Puppet Community and Enterprise.
• Worked on installation, configuration and maintenance Redhat, CentOS and Suse Servers at multiple Data Centers.
• Installed and configured monitoring tools Nagios for monitoring the network bandwidth and the hard drives status.
• Developed and supported the Red Hat Enterprise Linux based infrastructure in the cloud environment.
• Experience in migration of consumer data from one production server to another production server over the network with the help of Bash and Perl scripting.
• Developed automation scripting inPython (core)usingPuppetto deploy and manage Java applications across Linux servers.
• Installed and configured DHCP server to give IP leases to production servers.
• Management of RedHat Linux user accounts, groups, directories and file permissions.
• Focused in Continuous Integration and Continuous Deployment and promoted enterprise solution deployment assets to target environments.
• Used Amazon Web Services (AWS) console and AWS CLI to launch and manage VM’s with Public/Private subnet and setup load balancing, security groups etc.
• Migrated “demo” application used by Sales to Amazon AWS for client presentations.
• Experienced in implementing Chef Cookbooks for OS component configuration to keep AWS server’s template minimal.
• Applied the Clustering Topology that meets High Availability and Failover requirement for performance and functionality.
• Configured, managed ESX VM’s with virtual center and VI client.
• Installed packages with yum and rpm.
• Installation and configuration of PostgreSQL database on RHEL.
• Performed Disk management with the help of LVM (Logical Volume Manager).
• Configuration and Administration of Tomcat/Apache Web Server and SSL.
• Created and maintained network users, user environment, directories, and security.
• Provide the support of building the server, patching, user administration tasks, deployment, software installation, performance tuning and troubleshooting and KVM.
• Provided 24/7 on call support on Linux Production Servers. Responsible for maintaining security on Redhat Linux.
• Kept track of all releases and request of the developers through infrastructure management tool.

Environment: Java/J2ee, Puppet, Maven, Subversion, Linux(RedHat),CentOS, Suse Servers, Tomcat/Apache Web Server, DHCP server, GIT, Jenkins, Chef, Python,Perl scripting, Bash scripting, Nagios, LVM, Amazon Web Services console, CLI,PostgreSql.

Confidential, Alexandria, VA

Linux Admin / DevOps Engineer

Responsibilities:

• Deployed Java applications to application servers in Agile continuous integration environment and automated the whole process.
• Responsible for installing Jenkins master and slave nodes.
• Configured Git with Jenkins and schedule jobs using POLL SCM option.
• Used Perl scripts to automate the deployment process.
• Worked on infrastructure with Docker containerization.
• Involved in setting up builds using Ansible as a configuration management tool.
• UsedAnsible and other configuration management tools to deploy consistent infrastructure code across multiple environments.
• Written Perl scripts to automate deployment on nodes and running the client on them in a Ansible environment.
• Followed agile principles and used JIRA for maintenance and Bug development tasks.
• Deployed the build artifacts into environments like QA, UAT and production as per the build life cycle.
• Automated the build and release management process including monitoring changes between releases.
• Created and managed custom CentOS and Linux based AMIs.
• Setup Elastic Load Balancer for distributing traffic among multiple WebLogic servers.
• Involved in Amazon Web Services (AWS) and good knowledge of AWS services like EC2, AMI, S3, Glacier, Elastic Load Balancer (ELB), RDS, SNS, SWF and EBS.
• Hands on Experience in AWS Cloud in various AWS Services such as Redshift Cluster, Route 53 Domain configuration.
• Creating the configuration for establishing a VPN tunnel between on premise network and AWS VPC.
• Provided highly durable and available data by using S3 data store, Versioning, Life Cycle Policies and created AMIs for mission critical production servers for backup.
• Creating S3 buckets and managing policies for S3 buckets and Utilized S3 bucket and Glacier for storage and backup on AWS.
• Created the branches in subversion to implement the parallel development process.
• Implemented and maintained the monitoring and alerting of production and corporate servers/storage using AWS Cloudwatch.
• Managed servers on the Amazon Web Services (AWS) platform instances using Ansible Configuration management.
• Involved in migrating from SVN to GIT.
• Create and setup automated nightly build environment for java projects using Ant.

Environment: Java/J2ee, Ansible, AWS (Amazon Web Services), Ant, Vagrant, Docker, Linux, SVN, GIT, Jenkins,CentOS, Perl Scripting, Bash Scripting, Jira,AWS Cloud (Redshift Cluster, Route 53).

Confidential, Woodcliff Lake, NJ

Build and Release Engineer

Responsibilities:

• Managed build process and document configuration and deployment instructions.
• Coordinated release process with Engineers to ensure on-time product delivery.
• Configured Managed and controlled the source code repository, currently housed in Subversion, Git.
• Installed, configured and maintained Rational ClearCase and ClearQuest in Windows and UNIX environment.
• Maintained automated build system like Maven implement new features or scripts for the build system.
• Involved in migrating WebSphere 6.0 to 7.0 on AIX, Linux and Windows.
• Export andimport of source code for every new VOB created using clearfsimport,clearexport and clearimport.
• Involved in creating and configuring profiles, clusters, nodes, node agents for WebSphere Application Server.
• Experience in Installation, Configuration of WebSphere Commerce Server 5.1/6.0.
• Implemented Horizontal and Vertical Clustering, Performance tuning and troubleshooting of IBM WebSphere Application Server 6.0/6.1.
• Created the Clustering Topology in WebSphere Application Server ND V6.x to achieve Work Load Management (WLM), High availability, Load Balancing and Hardware fail over.
• Implemented a fully automated Continuous Integration platform to give developers real time testing and deployment feedback based on GitHub source code repository commits only.
• Researched and implemented code coverage and unit test plug-ins with Maven/Jenkins/Sonar.
• Used Maven dependency management system to deploy snapshot and release artifacts to Nexus to share artifacts across projects.
• Configured and maintained Jenkins to implement the CI process and integrated the tool with Ant and Maven to schedule the builds.
• Deployed code on Websphere Application Servers for Production, QA, and Development environments using WSADMIN scripts.
• Installed and configured WebLogic, Jboss, Apache Servers during the Data Center Server migration.
• Architected and implemented automated cloud infrastructure using and Puppet on multi platforms.
• Analyzed, designed and created the Clear Case repository (PVOB), components for storing file elements, and UCM projects using one or more of these components for development teams.
• Provided support to developers on ClearCase/ClearQuest tools in a Multisite environment and solved issues related to branches/merging operations.
• Worked on Tibco Environment up gradation, installation and configuration using shell scripts.
• Executed the Maven builds locally to troubleshoot Java code issues and merging related issues.
• Maintained TOMCAT Application server, produced builds of products for use in testing and in production.
• Identified and implemented process to strengthen, streamline the build process and handled deployment issues.
• Administrated and worked with multiple project teams to develop shared processes, optimize the usage and configuration of JIRA and provide technical leadership and tool development.

Environment: UNIX, CVS, SVN,GIT, Java, Eclipse,Tibco BW 5.9,ClearCase, PERL, TOMCAT, JIRA, Ant, Maven, Jenkins, Linux, Solaris, WebSphere, Shell scripting, WLST, Nexus.

Confidential

Systems Engineer /Admin

Responsibilities:

• Installation and Configuration of Solaris, Linux and AIX operating systems on large distributed environment. Performed system administration of UNIX servers by using Operating Systems of Solaris 2.7/8 Managing SUN Solaris, Compaq and Linux workstations and servers.
• Installed and configured SSH, SFTP, NDM, EMC Power path, Veritas Dynamic multi pathing, Oracle client, SAMBA utility software.
• Installed, configured and maintained Rational ClearCase and ClearQuest in Windows and UNIX environment. Export, Import of source code for every new VOB created using clearfsimport, clearexport and clearimport.
• Disk Management Utility. Used daily for file system creation and file system management.
• Managing Disks/File systems using Veritas Volume Manager.
• Responsible for first and second level problem analysis and resolution for system and application tools utilizing already existing UNIX scripts and Solaris run books.
• Setting and Managing NFS, NIS, DNS, Shell Scripting, patching.
• System performance tuning, User maintenance and security.
• Scheduling Backups, Monitoring & taking failover test of Veritas Clustered servers.
• Trouble shooting and problem resolutions in SUN, Linux and AIX servers.
• Procedural documentation of supporting applications as well as SLA and escalation policies to coordinate with the monitoring systems as deployed.
• Installation and support of various versions of Oracle and MySQL databases.
• Used various networking tools such as ssh, telnet, rlogin, ftp, sftp and ping to troubleshoot daily networking issues.
• Involved in configuration and support of a production environment hosted in a 24x7 setup.
• Responsible for administering and maintaining Linux workstations running Apache web server.
• Expertise in Linux backup/restore with tar including disk partitioning and formatting.
• Managed email (Postfix and Sendmail), LDAP and Oracle services.
• Performed all necessary day-to-day ClearCase support for all in-house projects.
• Work with developers to integrate their web applications onto standard infrastructure.
• Writing scripts for monitoring log files and sending alerts.
• Involved in the Recovery of the UNIX servers.

Environment: Solaris, Linux, AIX, Veritas Volume Manager, ClearCase, ClearQuest, Oracle & MySQL Data bases, ClearCase 7.0., ssh, telnet, rlogin, ftp, sftp, Apache webs server

Confidential

Jr Linux Systems Administrator

Responsibilities:

• Configuration & package installation through YUM.
• Deploying and Configuring of iSCSI server and Client.
• Configuration, Installation and Troubleshooting of Linux.
• Handling and troubleshooting issues like RPM packages, boating, User management and backup.
• IP bonding for load balancing and fail over.
• Hosting and securing web pages using Apache web server and ssl.
• Monitoring day-to-day administration and maintenance operations of the company network and systems working on Linux and Solaris Systems Creating and deploying LVM, resizing the logical volume and volume group.
• Configuration and administration of LDAP, NFS, FTP, SAMBA and POSTFIX Servers in Red Hat Enterprise Linux.
• Create, deploy and manage Linux and windows VM using Red Hat Enterprise Virtualization Manager, which includes moving and migrating VM from one cluster to another cluster or within the same cluster.
• Experience in Windows 2003 and 2008 Active Directory Installation and Configuration.
• Heartbeat clustering for high availability in Apache.
• Installed and configured ESXi 5.0, 5.1 Servers on Blade servers. Creating Virtual machines. Creation of templates from VMs and vice versa.
• Firmware upgrade, managing the servers, collecting Logs, open KVM console for troubleshooting.

Environment: Apache web server, LDAP, NFS, FTP, Samba, Postfix servers, YUM,iSCSLserver,LVM,Linux(Fedora, Debian),Windows, Esxi (5.0/5.1).