SUMMARY

• 10+ years of experience in the IT industry in Linux administration, Release Management, Application servers, Deployments, Cloud implementations in various environments.
• Proficiently skilled with Infrastructure Administration in LINUX (RHEL/CENTOS 5/6/7, Ubuntu), Solaris, Windows Server 2008 R2/2012 R2, Amazon Web Services and Tools that are used for Automation of Configuration Management in a CI/CD (Continuous Integration & Deployment/Delivery) Pipeline under DevOps Culture.
• Good understanding of the principles and best practices of Software Configuration Management (SCM) in Agile, Scrum, and Waterfall methodologies.
• Worked on AWS Cloud Administration which includes services like: EC2, S3, EBS, VPC, ELB, AMI, SNS, RDS, IAM, Route 53, Auto scaling, Cloud Front, Cloud Watch, Cloud Security, Cloud Trail, Cloud Formation, OPS Work, Security Groups.
• Creating AWS VPC network with in regions and Availability Zones to have both private and public networks of web applications that are deployed on EC2 and managed by ECS, AWS be to run servers, trigger and to run code by S3 and SNS.
• Have good command in Linux, Solaris and UNIX administration. Worked on Linux versions like RHEL 6/ 6.5 / 7, Centos 6.x / 7, Debian, Ubuntu.
• Experience withOpenStackServices such as Compute, Network, Storage, Dashboard,Image, Identity, Monitoring, and Orchestration Service.
• Worked with VMware ESXi 5.1/5.5/6.0,6.5 vCenter Server, Host Clustering with HA, DRS, Replication Manager 5.x/6.0, Site Recovery Manager, VMotion, Managing SAN Data stores with, iSCSI, NFS and FC and migrating HP - Unix servers to virtual Linux which included creation Hypervisor, HP Data protector, file system creation and mount point creation.
• Experience in branching, tagging and maintaining the version across the environments using SCM tools like Subversion (SVN), CVS, GIT, GITHUB and on UNIX and AWS environment.
• Experience in Linux Administration (Installation, Configuration and Upgrades of Linux Red Hat and Oracle)Implementing Software Configuration Management processes on projects including setting up and supporting our Continuous Integration.
• Extensively worked with version control tools like TFS, CVS, SVN, GIT, GITLAB, BITBUCKET, GITHUB, UDeploy Perforce and expertise in DevOps using tools like Jenkins, Maven, Ant, Chef, Bamboo, Gradle, Serena Products, Docker, Build Forge, TOMCAT, JBoss and Linux etc.
• Automated development environment provisioning using Vagrant and Chef. Wrote Chef cookbooks to automate the creation of ephemeral nodes installed with standard toolsets Java, Tomcat/Jetty, Apache, as well as install platform HTTP services.
• Expertise in working on configuration management tools like Chef, ansible and Puppet. Configured chef to provide a way to transform infrastructure into code to automate the processes.
• Implemented Infrastructure automation through Ansible for auto provisioning, code deployments, software installation and configuration updates and writingplaybooksforAnsibleusingYAMLscripts and deploying applications.
• Worked on Ansible and Terraform for creating subnets, security groups, route tables, ACL's for VPC creation, Route 53 and DNS creation for servers in instances.
• UsedBashandPython includedBoto3to supplement automation provided byAnsibleandTerraformfor tasks such as encryptingEBS volumesbackingAMIsand schedulingLambdafunctions for routineAWS tasks.
• Experience withKubernetesto manage the containerized applications, creating and deploying application containers. Automation of Kubernetes clusters on VM and Docker container orchestration using Ansible and Fleet.
• Experienced in Configuring Servers to provide Networking Services, including HTTP/HTTPS, FTP, NFS, SMTP, SSH, and LDAP.
• Implementing and administration Active Directory services, replication, Trust Relationship and enforcing Domain Wide Group Policies. Enforced Checkpoint Solution security for all desktops and laptops policies.
• Worked on severalDockercomponents likeDocker Engine, Docker-Hub, Docker-Compose, Docker RegistryandDocker Swarm and Created images stored in theDockercontainer and uploaded toDocker hub.
• ConfiguringHudsonfor developers to bounce the application container, to get the application, container, and access logs by usingANT scripts.
• Installed, Configured, Monitoring Tools such as Splunk, ELK, Nagios and iCinga for Resource Monitoring/Network Monitoring/Log Trace Monitoring and Nagios for monitoring the network bandwidth and the hard drives status.
• Monitoring System/Application Logs of server using ELK and Apache Frame to detect Prod issues, authoring pom.xml files, perform releases with MAVEN and ANT plugins, manage artifacts (jar, war & ear) from source code in NEXUS repository.

TECHNICAL SKILLS

Operating Systems/Environment: Aix 6.x5.x/4.x, Solaris 10/9/8/7/2.x, Red Hat Linux 7.0/6.0/5.0, Windows NT4.0, Windows 2000/2003/XP/2008/2012.

Cloud: AWS, Azure, GCP, Open Shift

Programming languages: Java, C, SQL, PL/SQL

Databases: DB2 7.2.5, 8.2, 9.6 Oracle 8.0(7.x)/9i/10g/11g/12c and SQL Server 2008/2012

Web-Based Skills: Java Server Pages 1.0, Java Script, HTML, DHTML, XML, XSL

App Servers/Web Servers: IBM WebSphere Applications Server 3.5,4.0,5.0, 6.0, 6.1, 7.0, 8.0 and 8.5, WESB 7.x,6.x IBM WebSphere Process servers 7.0.x,6.0.x, Windows IIS Server 5.x/6.0/7.0, Apache HTTP Server 1.x/2.x,IBM HTTP Server 1.2.x/2.0.x/6.x/7.x/8.x and SUN One Web server 6.0/6.1/7.0.

MQM: JMS, IBM WebSphere Application Server MQ series 5.x/6.x/7.x

Development Tools: Visual Age for Java 3.5, Visual Café 4.0, WebSphere Studio 5.1

Administration: Sun Solaris Administration, WebSphere Application Server, Oracle, DB2.

Configuration Management: Chef, Ansible

Testing Tools: Load Runner 7.5, Application Expert, and Web Load

Version Control Tools: CVS, Subversion, GIT, GitHub

Virtualization/Containerization: VMware ESXi, vCenter, vSphere Client, Docker, Kubernetes

Build Management: Puppet, Chef, Ant, Maven, Gradle, Jenkins, Hudson & Bamboo

PROFESSIONAL EXPERIENCE

Confidential, Jersey City, NJ

DevOps Engineer/Cloud Engineer

Responsibilities:

• Proficient in using AWS tools like EC2, EBS, IAM, S3, ELB, RDS, VPC, ROUTE53, CLOUD FORMATION using both Console and AWSCLI, LAMBDA, CLOUD TRIAL, CLOUD WATCH, DYNAMO DB, RDS, EMR. Used cloud front to deliver content from AWS edge locations to users, allowing for further reduction of load on front-end users.
• Worked on cloud formation templates to create EC2 instances and by leveraging security and management features, ECS containers to run, stop and manage docker containers on a cluster, S3 for object storage, VPC to create the private and public subnets, IAM roles for securely accessing the AWS resources. Automated the cloud deployments of services using Python boto and fabric along with AWS Cloud Formation Templates.
• Used load balancer and auto scaling for balancing the traffic between the servers and making sure to provide high availability servers to the applications in AWS.
• Configured AWS Cloud Formation to construct a stack constituting of AWS RDS instance and Parameter group and solving complex problems specific to AWS RDS and AWS Cloud formation, Security Groups, Auto scaling Groups.
• Migrated the source code repositories from GitHub to GitLab and wrote the GITLAB CI file for deploying some of the .NET components.
• Installed and configure the GitLab runners to deploy the .NET components on to the IIS servers. Worked on the GIT branching strategy to deploy the components on to different environments.
• ManageTFScode repository. Maintain and improve practices of branching, code mergeand Ensuring SDLC process policies are enforced withinTFS.
• Developed Agile processes usingpython, JUnit to use continuous integrationtools and UDeploy template designing inpython& shell scripting.
• Installed Jenkins/Plugins for GIT Repository, Setup SCM Polling for Immediate Build with Maven and Maven Repository (Nexus Artifactory) and Deployed Apps using ruby modules through Puppet as a CI/CD Process.
• Worked inDevOpsgroup running Jenkins in a Docker container with EC2 slaves in Amazon AWS cloud configuration. Also gain familiarity with surrounding technologies such as Mesos (Mesosphere) and Kubernetes.
• Expertise in working on configuration management tools like chef, ansible and puppet. Configured chef to provide a way to transform infrastructure into code to automate the processes.
• Having hands on experience on setting up chef workstation, bootstrapped nodes, wrote cookbooks, recipes and later uploaded them into chef server as well as AWS for EC2/S3/Route53 and ELB with chef cook books and configured Opsworks for chef automate to manage EC2 instances with Auto Scaling.
• Configured on Chef Infrastructure configurations and JSON and YAML templates to set up new TEST/QA cloud environments and worked on Ansible playbooks in related projects.
• Knowledge in Implementation of horizontal auto-scaling use cases usingOpenStackcomponents - Heat, Ceilometer, and automated local user provisioning in instances created inOpenStackcloud through Ansible Play books.
• Provisioned 3 node Docker swarm clusters for running multiple apps inOpenStackcloud in dev and test environments and
• Responsible for creating subnets inOpenStackcloud and providing resources to the dev and test environments.
• Extensively usedRubyscripting onChefAutomation for creating cookbooks comprising all resources, data bags, templates, attributes. Implemented and Enhanced the Existing Scripts which are developed inShell,RubyandPython.
• Configured the GitHub setup on ESXI from server side, used webhooks as a connectivity between GitHub and Jenkins whenever code is pushed to git repository webhooks is used for triggering a Jenkins job.
• Hands on experience in migrating Business from an on-premise infrastructure environment toAWS and Responsible for automated installation of ANSIBLE Enterprise 2.7 and configuring ANSIBLE Master and ANSIBLE Agents (both Windows and Linux Environment) in AWS VPC environment.
• Configured Jenkins Pipeline to create Docker Images with latest version of Java based application encapsulated which are deployed on AWS ECS by updating the Task definition using Lambda functions.
• Extensively worked on Amazon Redshift clusters such as launching the cluster with specifying the nodes and performing the data analysis queries by Handling large scale data migration through Redshift, used Multi Availability Zone.
• Developed Restful API's using the Ansible YAML Scripts, python involved in Building aMicroservice architecturewith spring boot and Docker and implemented CI/CD for all theMicroservicesthrough Jenkins and Maven build tool using Deployments through Ansible server.
• Integrated Ansible tower with Jenkins to trigger the workflow by developing templates which install the middleware like Tomcat, WebSphere, WebLogic, deploy the war files from Nexus to various environments.
• Experienced in Jenkins to automate build, testing, packaging and deploying the code to the respective servers and integrated the Jenkins plugins like maven, Gradle, MS build, Junit, SonarQube, Nexus and integrated email and slack notification plugins.
• Configured custom Jenkins jobs in shell to do database refreshes across environments, adhoc NodeJS builds, and pipeline creation for deployments and worked on master slave Jenkins servers and configuring build executors in Jenkins front.
• Built and deployed EAR and WAR files with custom configuration settings using Maven Tool Kit and further deployed the archives into Apache Tomcat Web Server and WebSphere Application Servers.
• Worked on setup of various dashboards, reports and alerts in Splunk, ELK, NAGIOS and other networking monitoring tools like Data dog.
• Deploying HA DRS Cluster, Managing resources. Migrating virtual machine configuration files and virtual disks from one Data store to another Data store. Migration of servers P2V and V2V by using VMware Converter and Plate Spin.

Confidential, Deerfield, IL

Middleware Engineer/DevOps Engineer

Responsibilities:

• Migrated VMware VMs from on premise to AWS cloud and migrated applications using AWS services like EC2, S3 Bucket, Route53, ELB, EBS and monitored scalable infrastructure on Amazon web services (AWS) & configuration management.
• Configured Amazon Route53 to manage DNS zones, created various hosted zones, sub domains and assigned public DNS names to elastic load balancers IP's.
• Worked on AWS Cloud watch which monitors Live Traffic, logs, Memory utilization, Disk utilization and various other factors which are important for deployment and configured SNS notifications to mail.
• Created Snapshots and Amazon Machine Images (AMIs) for the instances based on the requirements for backup and clone instances.
• Infrastructure automation coding in languages such as Python, Shell Scripts, bash,AWSCommand line interface andAWSSDKs. Thorough exposure in using version control tools SVN, GIT, Clear Case & CVS.
• Configured AWSaccount with multifactor authentication enabled and least privilege permissions and Leveraged AWS cloud services such asEC2, auto-scaling andVPCto build secure, highly scalable and flexible systems to handle load bursts.
• CreatedPythonscripts to automateAWS serviceswhich include web servers,ELB, Cloud front distribution, database,ec2and database security groups,S3 bucket and application configuration which joins web servers to stacks.
• DevelopedAzurePlatform Development, Deployment Concepts, hostedCloudServices, platform service and close interface with WindowsAzureMulti-Factor Authentications.
• Automating in Azure for creation of subscription, Storage Account and Tables using Windows PowerShell.
• Moving out the WSTAF infrastructure from On-Premise to Cloud at present MAAS Client and WSTAF services on to AZURE IAAS (Virtual Machines).
• Worked on the CI/CD tools like Jenkins, TeamCity and Urban Code, designed new Deployment process in the Urban Code to deploy the new components on to the IIS servers.
• DevelopedAzurePlatform Development, Deployment Concepts, hostedCloudServices, platform service and close interface with WindowsAzureMulti-Factor Authentications.
• Moving out the WSTAF infrastructure from On-Premise to Cloud at present MAAS Client and WSTAF services on to AZURE IAAS (Virtual Machines).
• Created multiple Docker files for different microservices such as MySQL, apache, tomcat, NodeJS, PHP, Redis, JBOSS and managed Containers, Images, Compose.
• Installed and configured Jenkins and build a job taking source code from git and using maven plugins to automate the CI process and pushed it to Nexus repository.
• Developed Chef Cookbooks to installDockerEE, create aDockerswarm, set up UCP, DTR and createDocker infrastructure.Focused on containerization and immutable infrastructure.Dockerhas been core to this experience, along with Kubernetes. Experienced in usingDockerSwarmand deployed spring boot applications.
• Deployed and configured Elastic search, Log stash and Kibana (ELK) for log analytics, full text search, application monitoring in integration with AWS Lambda.
• Integrated Jenkins with various DevOps tools such as Nexus,SonarQube, and Chef etc. Getting the list of issues from the components (project, module, file etc.) with the help ofSonarQube.
• Build, deploy and migrate infrastructure to Azure utilizing ARM templates and Terraform Also Worked with VSTS to create all-inclusive CI/CD process.
• Used chef as Configuration management tool, in automation of repetitive tasks, quickly deploy critical applications, and proactively manage changes, worked on the modifications and the development of some Chef Cookbooks and recipes to automate deployment environment configuration.
• CustomizedAnsiblemodules for finding facts aboutAWS Cloud Watchalarms and taking actions to pause/unpause those alarms during deployments. 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.
• ImprovedAnsiblewith use of EC2 for accessibility,run deckas job scheduler,Jump Cloudas directory service,Dockerfor containerization, andNginxto provide container security
• Installed and configured Bitbucket and JIRA to automatically trigger a build when a change is pushed to a Repository and tracked the changes using JIRA. Used MAVEN and ANT as build tools for the building of deployable artifacts (jar, war & ear) from source code.
• Worked on the administration of the JBoss 4.2.2servers including installation and deployments, Extensive experience in Security Patching. Installed and managed multiple instances of Tomcat using load balancer.
• Worked with JIRA for creating Projects, assigning permissions to users and groups for the projects &Created Mail handlers and notification Schemes for JIRA.

Confidential, Downey, CA

Build & Release Engineer/Automation Engineer

Responsibilities:

• Developed and supported the Red Hat Enterprise Linux based infrastructure in the cloud environment. Worked on installation, configuration and maintenance RedHat, CentOS and SUSE Servers at multiple Data Centers.
• Wrote some of the Puppet manifests for deploying, configuring and managing collected for metric collection and monitoring.
• Installed and configured an automated tool Puppet that included the installation and configuration of the Puppet master, agent nodes and an admin control workstation and worked on setting up Production administration/monitoring/reporting using Puppet and designed and implemented Puppet templates.
• Configured Nagios to monitor EC2 Linux instances with puppet automation and configured Apache webserver in the Linux AWS Cloud environment using Puppet automation.
• Extensive knowledge on writing and deploying modules in puppet and implemented GitLab for version control of puppet modules and process documentation using Confluence.
• Used Jenkins for Continuous Integration and deployment into IIS, NodeJS, WebSphere Application Servers by building using PowerShell, MS Build, ANT, Maven, Fortify, SonarQube.
• Creating, cloning Linux Virtual Machines, templates using VMware vSphere client 5, 5.5 and migrating servers between ESXi hosts, Installation/Activation of F5 Load balancers configure routing logic, creation of new service pools, and members.
• Leveraged VMware Infrastructure Implementation and Consolidation expertise to implement Physical-to-Virtual (P2V) migrations, blade server capacity planning, high availability and failover settings (where applicable) on newly installed blade servers and existing rack-mount servers, training of the existing IT staff on its purpose and proper use and documentation.
• Managed SVN branching and merging for older projects in multiple simultaneous releases. Configured Source Code. Management tools with Bamboo and executed triggers in SVN. Maintained the Source code in GIT and deployed them to DEV, QA, UAT and PROD Environments.
• Configuring and Maintaining of Network File Systems like (N.F.S) and Auto mount in networks. Installing and updating Kernel. Created and modified swap files and added swap space. NTP server and client configuration for synchronization of timing of all the servers with the NTP server.
• Support for Linux/Unix systems administration, operational support and problem resolution for server systems Created shared NFS files system, mounting and un-mounting NFS server, NFS client on remote machine, sharing remote folder, starting & Stopping the NFS services.
• Installed and configuredApacheHTTPServer2.0 andApacheTomcat 6.0 in various environments.Installed and configured plug-ins forApacheHTTPserverand Sun OneWebserverto proxy the request for WebLogicserver.
• Experience in writing SplunkSearch query and optimizing the query, designing scripts to automateSplunkmaintenance and alerting tasks.
• Handling troubleshooting issues like Booting, RPM packages, User management and backup. IP bonding for load balancing and fail over, Firewall, SELINUX. Heartbeat clustering for high availability in Apache.

Confidential, Los Angles, CA

VMware Administrator/Linux Administrator

Responsibilities:

• Installed/Configured RedHat Linux cluster 5x version & configuring the cluster resources, adding storage to the cluster disks and increasing/ decreasing the file system in RHEL.
• Creating the VM shell and pushing the operating system using the Kickstart server. Creation of Kickstart images for the different version of RedHat Linux Operating system like 5.x & 6.x.
• Worked as Red HatLinuxSystem administration, OS upgrades, security patching, troubleshooting and ensuring maximum performance and availability.
• Migration of applications from Linux (RedHat & SUSE) to Windows2003/2008 and resolving any dependency issues after live upgrade.
• Experience in supporting Windows Cluster server running 2-4 nodes on Windows 2000,2003 and 2008 supporting applications like web servers, SharePoint and Active Directory environment.
• Implementation of Windows 2003/2008 domain architecture and Database Upgrade for vCenter and update manager from SQL 2005 to SQL 2008 on 2 vCenter Servers.
• 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 VM kernel Linux appliances.
• Installed and Configured Nagios and created custom libraries and configurations for alerting System. Worked with UNIX andLinuxservers using internal tools such as who, du, df, top, dmesg, free.
• Responsible for setting up and managing hardware upgrades, performance tuning, and resource optimization as required.
• Experience in installing, configuring and monitoring VERITAS Cluster Server (VCS) and RedHat Cluster Server in High Availability Environment.
• Firmware upgrade, managing the servers, collecting Logs, open KVM console for troubleshooting. Performed filesystembackups and restores using local archiving utilities to include tar, Gzip.
• Create mount points for databaseadministratorsfor Oracle database install.Hosting and securing web pages using Apache (Httpd) web server and SSL.

Confidential, Olympia, WA

WebSphere Administrator

Responsibilities:

• Responsible for installation, configuration, administration, support, and performance tuning of the application server platform with WASND v6.0/6.1 running under AIX 5.x, Solaris and Linux environments.
• Installed and configured multiple Web Servers using IBM HTTP Server v6.1 and integrating Webservers, application server using plug-in file.
• Configured and monitored WebSphere Application Server in clustered and non-clustered environment.
• Created and federated profiles to the Deployment Manager using both Profile Management tool and also automated the process using manage profiles and add Node command.
• Recommended and used hybrid clustering (horizontal and vertical) to make use of efficient resources on a single system and to provide for hardware failover and load-balancing.
• Configured WebSphere resources such as JDBC Providers, Data Sources and Connection Pooling and administered performance tuning and monitoring it using Tivoli Performance Viewer by enabling PMI.
• Configured Clustering EJBobjects, JDBC connections and JMS connection factories.
• Experience in migration of WebSphere Portal Server from 5.1 to 6.0
• Involved in trouble shooting and performance tuning using Resource Analyzer and Log Analyzer.
• Configured Single Signon (SSO) for authentication and authorization.
• Worked with WebSphere Extended Deployment (WAS /XD) and implemented the Virtualization capabilities that can dynamically match available resources to changing workload demands.
• Configured global security on WebSphere Application server using IBM Directory Server.
• Installed SSL certificates on the Web Servers, and WebSphere application server using ikeyman tool.
• Configured Relational Databases such as Oracle, DB2 and SQL Server with Application Server.
• Extensive experience in working at 24x7 Support.

Confidential, Lansing MI

System Administrator

Responsibilities:

• Administered, configured, tuned, and troubleshooting WebSphere in a clustered environment on LINUX.
• Installed WebSphere Application Server V6.0, V6.1 and configured it on AIX 5.1 and Red Hat Linux 3.x platforms.
• Configured the Work Load Management in the Network Deployment environment to distribute the load evenly across all the nodes.
• Responsible for deploying enterprise applications from Admin console and enabling security using LTPA and LDAP for admin console and application components on LINUX.
• Installed IBM HTTP server 6.0 and configured SSL certificates for all secure sites using ikeyman tool.
• Configured the web-server interfaces (plug-in file), session management, virtual hosts, Data sources, HTTP transports for Application Server Instances and Applications.
• Implemented a Migration from WebSphere Application Serve Base to Network Deployment as well as a 5.0 to 5.1 upgrade.
• Providing Mentoring and Guidance to team members on WebSphere XD and Other new releases.
• Written Shell scripts to monitor installed enterprise applications and to get information from the logs and Database in the required format and other daily activities and jobs.
• Used WebSphere Admin Console and wsadmin/JACL/Perl scripting to install enterprise EAR, WAR files or for hot deployment.
• Applied fix packs and cumulative fix packs on top of the installed versions of the WebSphere Application Server (6.0 and 6.1).
• Troubleshooting Application & JVM errors and configured tuned JVM for optimum performance.
• Used garbage collection to evaluate application performance health and detected the presence of memory leaks.
• Used Tivoli Performance Viewer to monitor performance data like application resources (enterprise beans, Servlets, JSP’s) and WAS runtime resource (JVM heap size, jvm thread pools, and database connection pools).
• Provided 24x7 on-calls Production Support on rotation basis.

Confidential, Cleveland, OH

System Administrator

Responsibilities:

• Administered, configured, tuned, and troubleshooting WebSphere in a clustered environment on LINUX.
• Installed WebSphere Application Server V6.0, V6.1 and configured it on AIX 5.1 and Red Hat Linux 3.x platforms.
• Configured the Work Load Management in the Network Deployment environment to distribute the load evenly across all the nodes.
• Responsible for deploying enterprise applications from Admin console and enabling security using LTPA and LDAP for admin console and application components on LINUX.
• Installed IBM HTTP server 6.0 and configured SSL certificates for all secure sites using ikeyman tool.
• Configured the web-server interfaces (plug-in file), session management, virtual hosts, Data sources, HTTP transports for Application Server Instances and Applications.
• Implemented a Migration from WebSphere Application Serve Base to Network Deployment as well as a 5.0 to 5.1 upgrade.
• Providing Mentoring and Guidance to team members on WebSphere XD and Other new releases.
• Written Shell scripts to monitor installed enterprise applications and to get information from the logs and Database in the required format and other daily activities and jobs.
• Used WebSphere Admin Console and wsadmin/JACL/Perl scripting to install enterprise EAR, WAR files or for hot deployment.
• Applied fix packs and cumulative fix packs on top of the installed versions of the WebSphere Application Server (6.0 and 6.1).
• Troubleshooting Application & JVM errors and configured tuned JVM for optimum performance.
• Used garbage collection to evaluate application performance health and detected the presence of memory leaks.
• Used Tivoli Performance Viewer to monitor performance data like application resources (enterprise beans, Servlets, JSP’s) and WAS runtime resource (JVM heap size, JVM thread pools, and database connection pools).
• Provided 24x7 on-calls Production Support on rotation basis.

Confidential, Orlando, FL

System Administrator

Responsibilities:

• Installed, configured and administration of WebSphere Application Server 5.1 Network Deployment on Windows and Sun Solaris Servers.
• Installed, configured and administration of IBM HTTP Server.
• Configured JDBC Providers, Data Source, Virtual Hosting, Global Security and SSL.
• Configured WebSphere Application Server resources like JDBC Providers, JDBC Data Sources and Connection Pooling to connect to Oracle.
• Configuring WebSphere Application Server on multiple platforms for both horizontal and vertical scaling for Work Load Management.
• Collection of JVM statistics, garbage collection data for monitoring the heap and physical memory.
• Deployed EJB components that are run in IBM WebSphere 5.1 Application Server in UNIX on SUN Solaris environment.
• Recommended and used hybrid clustering (horizontal and vertical) to make use of efficient resources on a single system and to provide for hardware failover and load-balancing.
• Configured Session Persistence using Oracle Database.
• Analyzing Activity log files and diagnosing Application Server problems.
• Involved in backup and recovery of WebSphere configuration using backup Config and restore Config tools.
• Installed fix packs to overcome Application server problems.
• Involved in managing releases of products from development to QA to Pre-Production and Production.
• Deployed J2EE Application in WebSphere managed servers.
• Assembled and Deployed the application in staging and in productions following change management practices and 24/7 support, worked in shifts.