PROFESSIONAL SUMMARY:

• 6 years experience asnd Middleware Engineer with ever increasing levels of responsibility and expertise in a wide range of IT disciplines specializing in Tomcat, Jboss and IBM WebSphere Application Server and IBM IHS, Apache WebServer in all facets of Administration, Maintenance, Integration including Installation and Configuration, Deployments and Automation.
• Developed UNIX shell scripts, PERL, Jython,ANT scripts that automate WebSphere Administration and Deployment to various application servers like tomcat, jboss and WebSphere
• Leverage scripting BASH to build required automation and tools on an adhoc basis.
• Automation specialist with expertise in shell/perl/python/jython/ruby scripting and Opscode Chef Infrastructure automation and configuration management.
• Extensive experience in Securing communication using SSL Mutual Authentication between multiple products/endpoints and troubleshooting issues
• Experienced in Planning, Installing, Configuring, Administering, Patching, Tuning, Troubleshooting and Integrating Tomcat, Jboss, IBM WebSphere Application Server V5.x/6.x/7.x/8.x, IHS, Apache Http Server, LDAP, MQ and Siteminder.
• Strong experience in Analyzing, Troubleshooting and taking appropriate actions for Application/Webserver errors and logs using WebSphere Log Analyzer tool.
• Sound Knowledge and implementations of WLM using cloning and clustering techniques including Horizontal and Vertical Scaling for failover and High Availability
• Ex erience in Building and managing prod and nonprod environments for all the applications and managing the configurations directories, config/property files, port numbers, certificates, application releases
• Experience in Configuring session management and used database for distributed sessions to persist session data.
• Used version software tools like git, SVN, Clear case and VCS
• Implemented bash and korn shell scripts for accessing remote Admin Servers, cleaning up logs along with back-ups and ran them as cronjobs.
• Create ESBs and deploy MDB and JMS applications on SIB.
• Provided J2EE application deployment, and troubleshooting support for development groups.
• Documentation of all procedures and any other important issues.
• Effectively interacted with all teams on a daily basis, decreasing downtime and increasing user productivity.
• Experienced in Administration and Maintenance of WAS ND clusters vertical, horizontal, hybrid and deployment of applications in highly available, load balanced production.
• Experienced in implementing Work Load Management WLM methodology and Fail Over mechanisms using clustering including horizontal and vertical clustering for high availability. Also used Hardware loadbalancers.
• Experienced in migrating the applications from WebSphere V6.0 to V7.0 and 8
• Created IBM Problem Management Records PMR to report WebSphere Application Server issues.
• Experienced in configuration of cells, nodes, application servers, virtual hosts, session management, configuring web server plug-ins, IBM HTTP Server.
• Extensive knowledge in WebServer administration, which includes installation, configuration and troubleshooting of IBM HTTP Servers.
• Worked closely with Project manager, Development, Testing, Pre-Production and Production teams to align project deliverables within due dates and reporting issues.
• Highly experienced in deploying and debugging application EARs in Base and ND WebSphere Application Server providing load balanced and highly available clustering solutions.
• Installed Fix packs, Cumulative Fixes and Refresh Packs on the Base and ND Versions and migrating to latest versions.
• Knowledge of SSL, SSH, secure protocols, WebSphere security, overall web security standards.
• Worked closely with all teams release management, DEV, QA, Network, Security, Firewall and Global Information Security to build a base secure SOE build for all the products and projects.
• On-call Production Support 24x7 , monitoring and maintaining multiple Applications in Development, QA, Staging and Production Environments.

TECHNICAL SKILLS:

EDUCATION:

Bachelor Of Technology in Computer Science and Engineering, Kakatiya University, India.

PROFESSIONAL EXPERIENCE:

Visa Inc, Foster City, CA Dec 2012 Till Date Sr. Middleware Engineer

Responsibilities:

• Delivered new agile environments build/release/configuration and deployment automation/monitoring using jenkins, ant, maven, artifactory, chef, custom scripting and jira for ticketing
• Created runbooks for application configuration/troubleshooting and Infrastruture setup used Atlassain Confluence wiki as a knowledge base.
• Created packages using RPM
• Strong experience utilizing Build Forge and Jenkins for enterprise scale infrastructure configuration and application deployments checking out code from svn/git and use ant/maven to build war/ear artifacts
• Installed/configured Jira, built dashboards for Release views. Troublehshot and resolved various environment/application issues raised in JIRA tickets by DEV/QA teams
• Wrote ant/maven scripts for automating application builds wars and ears
• Expertise in Opscode Chef for Configuration Management and Infrastructure Automation.
• Automated JBOSS Configuration and Deployments using various perl/shell scripts.
• Migrated applications and configurations from WAS to JBOSS EAP 6.2 and vmware vFabric tcServer.
• Installed, configured WebSphere Application Server V8.5/8.0/7.X/6.X ND , and creating Cells, Dmgr, Application Server profiles using GUI, console and silent methods on UNIX, Linux and windows.
• Configured/managed clustered environment and deploying EARs, WARs EJBs.
• Installed/supported/administered applications within Microsoft IIS.
• Implemented WebSphere/JDK GUI silent upgrades from Version 6.1 to Versions 7.0 and 8.5 in clustered environments.
• Experienced in configuring HTTP Server/web-server aliases and troubleshooting plugin problems.
• Administered MQ objects like Queue Managers, Queues, Channels, Process Definition, Clusters, and Name Lists.
• Maintained WebSphere Application Servers on Windows and LINUX platforms and setting up the development, testing and staging environment for the ongoing application development
• Migrated applications from WAS 6.x to 8.0
• Installed and configured IBM HTTP Server 7.0/8.0/8.5.
• Responsible for updating refresh packs, fix packs and interim fix packs to Web Sphere
• Achieved Work Load Management by creating Clusters in WAS 8.X
• Involved in monitoring, shutdown and boot up network support and troubleshooting
• Installed EARs, WARs and configured application specific JVM settings, Web container parameters using the Admin Console.
• Enabled global security for the Admin Console and application components
• Utilized skills in Shell, Perl, jython, and wsadmin scripting to automate configrations, deploying and updating applications, migrating data and automating batch jobs.
• Worked closely with developers to define and configured application Servers, Virtual Hosts, Web Applications, Web resources, Servlets, JDBC drivers and Servlet Engines-as well as deployment of EJBs across multiple instances of WebSphere
• Created users and groups in LDAP Servers and mapping them to the enterprise applications running on WebSphere Application Server
• Wrote scripts for accessing remote Admin Servers, cleaning up logs during back-ups
• Installed and configured Siteminder agents on IBM HTTP servers webagents .
• Performed routine management of WebSphere Environment like monitoring Disk Space, CPU Utilization.
• Worked on fixing vulnerabilities caused during the network security scan by applying work around and applying fix packs according to the vulnerability.
• Drafted build, installation and configuration documents including Infrastructure diagrams in Visio.
• Mentoring/Training: Mentored team members and clients.
• Installation and configuration of new DataPower XI50/XI52/XI50B Appliances.
• Deployment of Application specific code builds onto the XI50/XI52 Appliances.
• Workshop/training for XI50 Blades.
• Firmware Upgrade, technical administration and monitoring.
• Creating and configuring Webservice Proxy and Multi-Protocol Gateway.
• Configuring XML Manager, Load Balancer Group and XML Firewall
• Implementation of AAA and SSL Mutual Authentication.
• Configuration of Role Based Management RBM using LDAP
• Demonstrate in-depth knowledge of and experience with: XML, XSLT, XPath.
• Demonstrate in-depth familiarity with concepts related to: SOA, J2EE, Web Development.
• Using Cryptographic Tools to generate keys and certificates, export and import keys and certificates
• Configuring log categories setting event filters
• Configuring syslog targets and setting event filters
• Production Support and Maintenance of SOA XI50/XI52 Appliances and WebMethods Integration servers
• 24x7 Production On-call rotational support.

Environment: IBM WebSphere Application Server 8.5/8.0/7.0/6.1/6.0. IBM HTTP Server 8.5/8.0/7.0/6.1, Oracle 12g, IBM DB2, RedHat Linux 4.x/5.x/6.x, Windows 2003, 2008 server.

Confidential

Middleware Engineer

Responsibilities:

• Installed, configured and administered IBM WebSphere Application Server 6.0/6.1/7.0, WebSphere Portal Server 6.0/6.1/7.0 and IBM HTTP server 6.1/7.0 on AIX/Windows platform.
• Administered, configured, tuned, and troubleshoot WebSphere in a clustered environment.
• Installed, configured upgraded WAS 7, 6.x, and provided extensive support in deployment, change management and application level troubleshooting for the Dev, Test, Pre-Prod Production environment.
• Installed and configured IBM WebSphere Portal Server on Unix/Linux Servers, created Portal Clusters using horizontal vertical clustering.
• Deployed portlet applications wars , setup labels, pages, assigned portlet to page on WebSphere Portal Server, created Virtual Portals.
• Responsible for development of integrated enterprise portal applications to support banking accounts on-line processing modules and promoted applications, customizations using XML Access, Release Builder.
• Deployed themes, skins and configured Database and Security for WebSphere Portal Server.
• Developed and executed test plans for WebSphere Application Server upgrade/migrations.
• Upgraded WebSphere ND6.0 and 6.1 with refresh packs, fix packs, migrated the applications on WebSphere 6.1 to 7.
• Configured the web-server interfaces plugin file , session management, virtual hosts, data sources, HTTP transports for Application Server instances and applications.
• Supported all styles of integration based on SOA and open standards by using WebSphere Process Server V6.
• Worked on IBM WebSphere Commerce V7.0 for customer interaction platform for online and cross channel commerce.
• Supported the company's business model by using IBM WebSphere Commerce V7.0.
• Used RAFW for installation action, commands, deploying J2EE applications and guided activity of cell.
• Configured resources for JDBC, J2C, and JMS based on the application requirements and configured Message Listener Ports for an application, which uses MDBs to trigger the queues.
• Separated the static content from the dynamic content for better application security and performance.
• Configured WebSphere resources like JDBC providers, JDBC data sources, connection pooling.
• Tuned the JVM based on performance testing /monitored the results on Wily.
• Investigated, troubleshoot and resolved application and configuration issues.
• Tuned the JVMs by analyzing the must gather information for Applicgation Server Hangs.
• Troubleshot Admin Server start-up issues, Java code defects after deployment, and class path issues by checking the JVM logs, plug-in logs and the web server logs.
• Wrote UNIX 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/Jython scripting to install enterprise EAR, WAR files or for hot deployment.
• Created new groups and added users to those groups in LDAP for different environments.
• Provided different levels of access to different users in the Admin console as per the request.
• Monitored Applications and WAS performance through Tivoli Performance Viewer and tuned the system caching, queuing, JVM parameters, DB Connection Pooling.
• Performed Application-data backup recovery, local backup/restoration of the WebSphere Environment configurations and applications.
• Performed daily housekeeping functions, such as establishing new accounts, creating and resetting passwords, developing scripts, performing system backups and recovery, and installing software patches and updates.
• Involved in opening and working on PMR's with IBM to solve various issue related to the environment.
• Developed Cron jobs and Shell Scripts Jython, Perl, ksh for automating administration tasks like file system management, process management, backup and restore.
• On-call Production Support 24x7 .

Environment: IBM WebSphere Application Server 5.1/6.0/6.1/7, WebSphere Portal Server, IBM WebSphere MQ 5.3, IBM DB2, AIX 5.1/5.2, Linux, Solaris, Sun ONE Directory Server 5.1, IHS WebServer 2.0/2.1/6.1, Tivoli Performance Viewer, Wily Introscope 7.x, Oracle 10g, Sybase, DB2.

Confidential

WebSphere Admin

Responsibilities:

• Installed, Configured, and Administered IBM WebSphere Application Server 6.1.0.7/6.0.2.29 ND in Sun Solaris, Linux platform.
• Participated regularly in walkthroughs and review meetings with Project Manager and Development teams.
• Configured Workload Management using horizontal and vertical clustering in WebSphere Application Server.
• Installed IBM HTTP Server 6.0/6.1 and configured with remote plug-in and configured with portal server in cluster environment.
• Installed fix packs, refresh packs for the WebSphere application server 6.1 to support portal .
• Migrated the application server from WebSphere v6 to v6.1 using WAS pre Upgrade and WAS post Upgrade command line tools.
• Configured WebSphere Portal LDAP Security with IBM Tivoli Directory Server 6.0.
• Configured WebSphere application server to the DB2 enterprise database using JDBC connection pooling.
• Configured global security in IBM WebSphere application server using LDAP using IBM Tivoli Directory Server, custom and local repositories and Security using LDAP user registry.
• Deployed the EAR, WAR files and scripted automated deployment of the applications including JDBC Data source configuration using scripts jacl and jython.
• Created virtual hosts one per each site and configured host aliases. Bind the Virtual IP's to Physical IP's for all SSL sites to balance the load between web servers in round robin fashion.
• Troubleshooted and resolved complex issues involving WebSphere Application Server WAS for Windows configurations.
• Performed heap dumps and thread dumps and analyzed using heap and thread analyzers to find out the bottleneck of the application server hung and out of memory exceptions.
• Performance tuned WebSphere application server using Tivoli performance viewer and Wily Introscope.

Environment: IBM WebSphere 6.x/7.0, Apache WebServer 1.3 / 2.0, DB2UDB 8.0, SQL Server 2000, Tivoli access manager, Java 2.0, Jython, Perl scripting.

Confidential

WebSphere Admin

Responsibilities:

• Installated, Configured and Administered IBM WebSphere Application Server 6.1 ND/XD on UNIX platform.
• Provided Architecture support for the Websphere environment.
• Provided Production 24x7 On-call support for the System, Server, Applications
• Used WebSphere Admin Console and wsadmin/JACL scripting to install EAR, WAR files or for hot deployment.
• Installed and configured Samba server and client to provide windows and Linux share for the application interaction at various interfaces.
• Resolved various Server level configuration issues on the Linux environment.
• Configured Virtual Hosts, Web Applications, Web Resources and JDBC drivers.
• Migrated Websphere Application server from 5.1 to 6.1.
• Configured WebSphere Application Server on multiple platforms for both horizontal and vertical scaling.
• Configured DR and automated the deployments.
• Configured Clusters and Instances for improved availability and failover capability.
• Created and managed data source and database connection pools.
• Provided user access to the Linux box for various users to look into the Log files with specified Permissions.
• Troubleshooted WAS problems using Log Analyzer and Tracing.
• Interpreted log files to locate and solve application server problems.
• Enforced Application wide Authentication and Authorization Services.
• Debugged problems that arise during compilation/build phase.
• Updated with the Latest Fix-packs.

Environment: IBM WebSphere Application Server 6.0/6.1, WPS 5.1 Oracle, SQL server UNIX, AIX, Solaris, Windows 2003, TPV, Java/J2SE 1.4, J2EE 1.4/1.3, JES4, JES5, TAM 6.0 components. MS .net technologies, IBM MQ series, Weblogic 8.3, IHS 6.1.

Confidential

WebSphere Admin

Responsibilities:

• Installed and configured IBM WebSphere Application Server 6.0.2/6.1, Network Deployment on IBM AIX, Sun Solaris for development and production environments.
• Installed various intermediate fixes on the application server recommended by IBM to mitigate security risks.
• Installed Cumulative Fix packs and APARs on Portal server to upgrade portal and fix application issues.
• Responsible for setup, installation and administration of JBOSS Application server
• Involved in Load balancing/Tuning/Clustering for JBOSS Server using mod jk
• Installed and configured WebSphere Network Deployment Manager 6.0, 6.1 used Update Installer to update with fix packs and automated the tasks with shell scripts using silent response files
• Automated configuration, troubleshooting, deployments using JACL and Jython scripts used AdminConfig, AdminApp, AdminControl and AdminTask
• Administered multiple operating systems which include clearing queues, modifying object attributes, restarting channel and supporting application development by resolving programming problems with MQI WebSphere MQ Application Programming Interface
• Assigned the realms, rules and policies for authentication, authorization using CA siteminder
• Installed and Configured, administered the WebAgent in Webserver and integrated CA siteminder 6.0 as Policy server with Apache webserver 2.0
• Configured Adminconsole security on WebSphere and creating users with various roles to access the WebSphere admin console users and groups in LDAP and added them as WebSphere Console Groups using both adminconsole and wsadmin Jython
• Used WebSphere plug-in for load balancing across the cluster members and manually updated it for remote Web Servers in the DMZ
• Installed SSL certificates on the Web Servers using ikeyman/keytool tool
• Used Wily Introscope for tuning the WebSphere environments JVM heap size, data base connection pool size, etc
• Responsible for 24/7 on call and Production Support on rotation basis.

Environment: IBM WAS 5.x/6.0.x and 6.1.x, RedHat Linux 4/5, AIX, Sun Solaris 9, IBM Directory Server v5.1/6.0, IBM HTTP Server 6.1, IBM DB2 7.1, Windows 2000/2003 server.