SUMMARY

• Over 7 years of IT experience including 6 years of experience in Planning, Installing, Configuring, Administering, Tuning and Troubleshooting IBM WebSphere Application Server 6.x/8.x, JBOSS Application Server 4.x,5.x,6.x and Tomcat 6.x,7.x on various Operating Systems like Linux and AIX.
• Worked on allocating capacity, assigning IP’s from the cloud group to the virtual machines using IBM Pure Application System console.
• Worked on Compute Nodes evacuation i.e. moving all the Virtual machines from one compute node to other compute node for the Firmware Upgradation on IBM Pure Application Systems
• Worked on migration of application from WAS6.x to Was8.5 by participating in all aspects of migration plan starting from Development to production environments.
• Involved in applying fix - pack to the virtual Machine using IBM Pure Application system Console.
• Experience includes consulting with application owners, understanding their requirements, creating environment/topologies, installing, monitoring and tuning and supporting mission critical enterprise Java EE (J2EE) applications.
• Experience in installing, configuring and administering webservers such as IBM HTTP Server and Apache Webserver.
• Worked on configuring OAM Webgate Installation on IHS servers. This will feed the request through SSO.
• Expertise in configuring JDBC, JMS, and JNDI Connections and fine tuning JDBC Connection Pool configuration for Oracle, MySQL, DB2 and MS-SQL Server.
• Configured web Server Interfaces, Session Management, Virtual Hosts and transports for Web Sphere Application Server.
• Experienced in the maintenance of the Web Sphere Application Servers on different UNIX platforms and setting up the development, testing, UAT and production environments.
• Configured clustered Jboss Environment (Horizontal/Vertical Scaling). Configured Multiple Jboss instances on single server.
• Identified and tweaked application server performance bottlenecks during performance testing of enterprise applications using the monitoring tool Tivoli Performance Viewer.
• Expertise in handling Work Load Management (WLM) using cloning and clustering concepts and effectively handled High availability.
• Experience with BMC Remedy management tracking tools and change management tools.
• Worked on performance testing of the web services using Jmeter scripts.
• Monitoring and tuning using Tivoli Performance Viewer and Wily Intro scope and tracing the transactions during Jmeter load tests.
• Performed back-up procedures for system application software data files and Web Sphere Config database and xml configs.
• Developed many Jython/shell scripts to automate the maintenance process
• Monitored JBoss applications, severs using Jboss operations network (JON), Jconsole, GCviewer.
• Installed & Integrated Apache web server with Jboss server using mod jk Modules.
• Strong experience in administering and configuring the monitoring tool like Jboss operations network, Jconsole, GCviewer.
• Deployments, maintenance, fix-upgrades, general administration, troubleshooting and performance tuning of JBOSS.
• Optimized performance by SLIMMING JBOSS instances to deliver business specifics in intranet and Internet applications.
• Responsible for setting heap size and GC time settings at the time of running JBoss application server with an ALL, DEFAULT configuration modes.
• Worked with JMX-console to monitor the Jboss parameter values like memory usage or JCA connection Details.
• Installed & Configured LDAP server with Apache & Jboss Application server.
• Installed and configured Apache Geronimo (with TOMCAT). Deployed J2EE applications. Configurations include Network Listeners (AJP, HTTP, HTTPs), DB pools, JMS, log management.
• Responsible for setting heap size and GC time settings at the time of running JBoss application server with an ALL, DEFAULT configuration modes.
• Migration, Deployment of the Web applications, Performance tuning, Clustering, Troubleshooting of Enterprise applications, Designing and Architecture of New Enterprise applications.
• Experience in monitoring and maintaining multiple Applications in Development, QA, Staging and Production Environments
• Created, Configured and Administered Profiles, Clusters, Application Servers for WebSphere Application Server and deployment of applications in highly available, load balanced production environments.
• Experience in developing Perl, Jython, and UNIX shell scripts for automating WebSphere application deployments and configuration at enterprise level.
• Experienced in wasadmin scripting and troubleshooting the middleware product related issues on different UNIX flavors (Solaris, Linux, HP-UX) and Windows environments.
• Experience in integrating other middleware products like LDAP, JMS, and DataPower with WebSphere.
• Responsible for taking thread, heap dumps and opening up PMRs with IBM to resolve critical issues.
• Experience in Optimizing and troubleshooting using Wily Introscope, Tivoli Performance Viewer, Thread Analyzer, Resource Analyzer and Log Analyzer.
• Excellent debugging skills in a complex environment including 3-Tiered, clustered environments Sound knowledge in J2EE technologies, JNDI, JMS, JDBC, Servlets, JSP and EJB.
• Provided 24x7 production support, best practice trouble shooting, monitoring, capacity planning, performance tuning, naming standards, security and maintenance for J2EE applications deployed on WebSphere and JBoss application servers.
• Skillful at troubleshooting, performance tuning and resolutions effort for Application Server ND and J2EE applications using Resource analyzer and Log analyzer.

TECHNICAL SKILLS

IBM Products: WebSphere MQ Series, Data Power, WebSphere Business Integration Message Broker, WebSphere Application Server.

Operating Systems: Windows NT (XP, Vista, 7 & 8), Windows Server (Home & 2008), IBM AIX (6.x & 7.x) HP-UX (11.x), Red Hat LINUX (6.x & 7.x)

Programming Languages: C, C++, Java, SQL, UNIX Shell Scripting, Perl Scripting, HTML & XML.

Application Servers: IBM WebSphere Application Server, Oracle WebLogic Server(11g),SJSWS, Apache Tomcat, JBoss.

Web Servers: Apache Tomcat Server, Apache HTTP Server, mod jk,mod proxy, IBM HTTP Server, Microsoft Internet Information Services.

Databases: Oracle (10.g, 11.i/g, 12c) Microsoft SQL Server (2008, 2012 & 2016) Microsoft Access (2010 & 2013) & IBM DB2.

Protocols: FTP, HTTP/HTTPS & TCP/IP.

Monitoring Tools: DynaTrace, Wily Introscope, Nastel, MQ Explorer, MQMON

Miscellaneous: Microsoft Office Suite (2003, 07, 10) Microsoft Visual Studio (2005, 08), Various VPN Clients, PUTTY.

PROFESSIONAL EXPERIENCE

Confidential, Deerfield, IL

Middleware Administrator

Responsibilities:

• Installed, Configured and Administered WebSphere Application Server ND/XD 7.0/8.x & on Red Hat Linux, AIX platform.
• Worked on allocating capacity, assigning IP’s from the cloud group to the virtual machines using IBM Pure Application System console.
• Worked on Compute Nodes evacuation i.e. moving all the Virtual machines from one compute node to other compute node during the Firmware Up-gradation on IBM Pure Application Systems.
• Worked on migration of application from WAS6.x to Was8.5 by participating in all aspects of migration plan starting from Development to production environments.
• Worked on configuring OAM Web-gate Installation on IHS servers. This will feed the request through SSO and configured WebSphere LDAP Security along with Tivoli access Interceptor as a part of OAM setup.
• Installed and configured the IBM HTTP Server 7.x/8.x on Aix/Linux platform.
• Worked on RPM package installation and NFS mounting and un-mounting of file systems in Linux, AIX.
• Implemented SSL security between client, Webserver & application server and generated Self Signed and Signed Certificates (Generate CSR and Import Signed Cert to Key stores) through ikeyman, OpenSSL and Keytool.
• Experience in developing Perl, Jython, and UNIX shell scripts for automating WebSphere application deployments and configuration at enterprise level.
• Deployed WAR & EAR files in JBoss EAP 6 application server hosting clustered environments using jboss-cli and Experience in using JBoss CLI scripting to perform Jboss administrative tasks.
• Worked in different environments like Development, QA, UAT, Stage, performance, Pre-production and Production.
• Deployed WAR, JARandEARapplications in JBOSSforall the environments including System Test, Pre-Production and Production environments.
• Configured the jConsole to monitor the Java processes like Thread usage, Memory consumption and the status of deployed Mbeans are available through jConsole on either local or remote Java virtual machines and debug any errors occurring in an application server environment, application debugging, heap analysis and error doc gathering required (i.e. Thread dump, heap dump)
• Managed the Security and Performance Optimization for EJB containers and Web Applications in WebSphere, IHS web server.
• Achieved Workload Management and Failover by Creating and Configuring Clusters and Cluster members for Load Balancing and High availability.
• Responsible for applying Refresh packs, fix packs and Interim packs to WebSphere Application server and IHS web server.
• Created and Managed User roles and Groups for Securing the Resources using local operating system authentication.
• Developed scripts to monitor JVM Heap Size, JMS Messages in the Destination queues in the production environment.
• Dealt with troubleshooting issues like Server hang, keep alive threads, HTTP threads, Application Deadlock, Perm Gen space, Out of Memory Issue, High memory usage and High CPU.
• Single handedly performed up-gradation of Jboss 5.3 to Jboss 6.2, Red hat release and configured JDBC, log4j, JMS and JDK.
• Created the user lists and groups in LDAP Servers and mapped them to the enterprise applications running on the Application Servers.
• Used Tivoli Performance Viewer/Wily Introscope to monitor WebSphere Applications and tuned the environment accordingly like changing the JVM Heap, Connection Pool settings.
• Worked with Wily Introscope dashboards for tuning the JVMs and assessed the direction of projects through various development lifecycles with the development team using Agile Methodologies.
• Monitored the health of the JVM by taking Thread Dumps and analyzing the Stack trace which helped in performing Root Cause Analysis to find out the cause of the problem.
• Performed routine management of WebSphere environment like monitoring Disk Space and CPU Utilization.
• Involved in Troubleshooting Admin Server start-up issues, Java code defects after deployment, like class path issues and errors in application properties files by checking JVM logs and Plugin-logs.
• Involved in Trouble shooting and Performance tuning using Resource analyzer and Log analyzer.
• Working with IBM in opening a PMR for inconclusive root causes, and coordinating the proposed changes with the respective teams.
• Ensuring consistent communication between WebSphere Clients, Edge Components, Web Server, Application Server(s), and Database.
• Supported production applications 24X7 on-call on a rotational basis.

Environment: IBM WebSphere Application Server ND V6.x/8.x, Oracle10g/11g/12c, DB2, IBM HTTP ServerJBOSS, Tomcat, WebSphere MQ, Apache, RHEL,BMC Remedy Ticketing tool, Rational Team Concert (RTC) TPV,ipv4,ipv6, Redhat Linux 4/5, WindowsXP, JDK1.6, JACL and Jython scripting, Jboss 5.3/6.2.

Confidential, Pittsburgh,PA

Middleware Administrator

Responsibilities:

• Installation, Configuration and Administration of IBM WebSphere Application Server 6.x/7.x on Linux and Windows platform.
• Installed configured and maintained JBoss, Tomcat 5.5/6.0, and Apache 2.0 in Domain and Clustered environment.
• Involved on performance testing of the web services using Jmeter scripts
• Configured resources on JBoss, Tomcat for JDBC, JMS based on the application requirements and configured Message Listener Ports for an application, which uses MDBs to trigger the queues
• Created Digital Certificates and configured SSL for JBoss AS, Http Server, JBoss Web using keytool, openssl etc,
• Configured JBoss Messaging, which included setting up a data source, configuring access control, defining new destinations and updating applications and MDB.
• Manage and coordinate new production, User, training, performance test, and DR rollouts and code deployments on a weekly basis.
• Used scripts to handle everyday System Administration tasks such as backup procedure, system cleanup etc.
• Scheduling the Cron jobs and log maintenance.
• Active involvement in monitoring server performance, network traffic to reduce performance bottleneck.
• Configured WebSphere resources like JDBC providers, JDBC data sources, connection pooling and JavaMail sessions.
• Configured and Managed WebSphere Security by implementing WebSphere Global Security and SSL on applications and resources.
• Automated/scripted Middleware related tasks namely Code push, Installations, and Health checks.
• Troubleshoot problem-tickets, worked with developers to identify the root cause and resolve the issue or propose a potential work around and successfully resolved security issues around LDAP, SiteMinder, JBoss, MQ and data issues.
• Worked on troubleshooting applications looking and using logs, traces, Log Analyzer, JConsole etc.,
• Implementation of horizontal and vertical scaling of WebSphere application server for workload-management in a cluster.
• Applying patches and plug-ins for WebSphere Application Server.
• Monitored for application core dumps, or forced thread dumps to check for system objects using thread analyzer.
• Maintenance of WebSphere backup scripts using Jython, Jacl.
• Applied software maintenance, program fixes and keeping the system software releases current.
• Troubleshoot hardware and software problems, and interacted with IT staff or vendors in performing complex testing, support and troubleshooting functions.
• 24x7 on-call support on a rotation basis. Deployment of several Enterprise Applications in a clustered environment with failover support.
• Performed Installation of Jboss JON 2.4, monitoring server which will monitor the Jboss instances, Operating system parameters running on different Operating systems.
• Created groups, users, roles and configured alerts in JON 2.4 (Jboss Operations Network) monitoring server.
• Experienced in configuring Jboss cluster, Jgroups, JBM and Jboss cache.
• Worked with Load Balancers and BiIP in Production environments using Routing algorithms like Round Robin.
• Uses DNS, diagnostic and customer simulation tools to maintain, troubleshoot, and/or restore service to the production environment. Identifies application and/or hardware/OS problems.
• Reroutes customer traffic around production problems, project implementations and application code updates.
• Provides regular on-call production support requiring quick response and coordination leading to problem resolution.
• Involvement in performance monitoring and tuning by using the Tivoli Performance Viewer.
• Configuring security of WebSphere using LDAP registry (Microsoft Active Directory).
• Configured the JDBC resources and created connection pools with respect to the database.
• Performing Troubleshooting by analyzing log files using the Log Analyzer tool and also by running traces.
• Maintenance of the local Apache and IBM HTTP web servers.
• Documentation of all procedures and any other important issues.

Environment: WebSphere Application Server 6.x/8.5, AIX, Linux, IBM HTTP web server, Jacl, Jython, Tivoli Performance Viewer, Log Analyzer, My SQL, Oracle, Jboss 4.2/5.0.1/5.1.0 , Load Balancers like F5.

Confidential, Madison, WI

Middleware Administrator

Responsibilities:

• Installed and configured WebSphere Application Server Network Deployment and Extended Deployment in multi clustered high availability environments used Update Installer to update with fix packs. Automated the tasks with shell scripts using silent response files.
• Maintaining and managed Servers and Instances. New JBOSS, Apache Tomcat application deployment and Hot Fixes on Production, Staging and QA servers
• Installed WebSphere Application Server 7.0.0.13.
• Created Centralized Installation Manager Repository (CIM), Installed Fix Packs using CIM to the target nodes and updated it to the level of deployment manager.
• Transferred default cloudscape database to DB2 and Oracle database.
• Configured Apache module mod jk to connect to the Tomcat container, Configured SSL between Apache and Tomcat using mod ssl.
• Install and configure Tomcat 7.x in various environments.
• Experienced in installing the security certificates and installing Site minder for single sign on (SSO).
• Involved in installing Web Servers like IBM Http Server and installing corresponding plug-ins on the Web Servers to communicate with the Application Server.
• Supported the application which runs on JBOSS along with Apache (integrated with JBOSS with the help of mod cluster plugin + AJP setup).
• Deploying applications using deployment scripts and administration console.
• Maintaining applications which are deployed in JBoss and Apache Tomcat Servers.
• Solid experience in implementing Work Load Management (WLM) and failover using Vertical/horizontal clustering to achieve High Availability.
• Configured Web Sphere resources like JDBC providers, JDBC data sources, connection pooling, Implemented creation of Server groups and clusters in Web Sphere Application server.
• Used Web Sphere Admin Console and wsadmin/JACL/Perl scripting to install enterprise EAR, WAR files or for hot deployment.
• Mod JK has been configured for apache and currently testing is being done for the potential to use Mod Cluster in the firewall environment.
• Performance monitoring, tuning and troubleshooting Web logic, Jboss, Apache and Tomcat server instances.
• Reviewing the documents in a periodical manner and updating Ops Manual, Issue Tracker based on lesson Learnt.
• Worked closely with developers to define and configure Application Servers, Virtual Hosts, web applications, Servlets, JDBC drivers and Servlet Engines.
• Experienced in deploying J2EE Applications archives (JAR, WAR and EAR) on IBM Web Sphere application server and Portal server.
• Monitored the environments using Jython scripts for fail over of servers, health checks, parameter monitoring.
• Performance and tuning database connection pools, thread pools, JVM Heap Size to required sizes using admin console.
• Provided technical assistance for Web Hosting team on various Application servers an Web Servers including IBM HTTP Server, Apache Web Server, and iPlanet Server.
• Created IBM Problem Management Records (PMR) to report Web Sphere Application Server problems. Analyzed log files to solve problems using debugging tools like Log Analyzer, First Failure Data Capture Tool and Collector Tool.
• Configured Secondary LDAP & implemented LDAP Failover in the environment.
• Trouble shooting errors both Application & JVM also analyzed heap/core plus error logs - configured tuned JVM for optimum performance.
• Monitored for Application core dumps, or forced thread dumps to check for system objects using thread analyzer.
• Responsible for Folder duty and implementing CCF’s during On Call.
• Created new Web Servers to use VeriSign certificates and IBM IKEYMAN.
• 24x7 on-site operations support for different environments.

Environment: IBM WAS 6.x ND, IBM WAS Portal 6.0, WebSphere MQ5.x/6.x, IBM HTTP Server 1.3.19/1.3.26 , AIX 5.2, RHEL 4, LDAP, Netegrity site minder, Netscape Directory Server5.1, Oracle 9i/10g, J2EE 1.3/1.4, JDBC2.0, UIDP V5, Servlets, EJB1.1, XML1.0.

Confidential, Pleasanton, CA

WebSphere Administrator

Responsibilities:

• Responsible for Installation, configuration and administration of enterprise applications on IBM WebSphere Application Server 6.0/6.1 Network deployment and IBM HTTP Web Server 6.0/6.1, Apache Web Server 2.0 on AIX, Linux and Windows NT/2000/2003 environment.
• Implemented Clustering, Performance tuning and troubleshooting of IBM WebSphere Application Server 6.0/6.1.
• Deployed enterprise J2EE applications on WebSphere 6.0/6.1 that involves EAR, JAR, and WAR files.
• Testing windows & Linux (Suse and Redhat) Applications and setup testing environment for Production.
• Involved in configuration of WebSphere Application Server resources like JDBC Data Sources, JDBC Providers and Connection Pooling to connect to the DB2 and Oracle.
• Responsible for troubleshooting networking issues, opening tickets for DNS changes, firewall requests.
• Worked with the Application Development team from the very beginning phase of a project to ensure that all proposed technologies and solutions have met the business requirements.
• Experience in developing and using JACL, JYTHON, ANT scripts for starting, stopping, deploying applications and configuring WebSphere Server.
• Developed scripts to handle everyday System Administration tasks such as backup procedure and system cleanup.
• Migrated applications from WebSphere 6.x to 7.x environment.
• Configured and setup Secure Sockets Layers (SSL) for data encryption and client authentication. Used WebSphere Application Server key management utility, for managing keys and certificates.
• Secured the application by using Sun One LDAP, Local OS authentication and SOA.
• Associated with the full life cycle of the application.
• Deployed java applications on Apache-Tomcat 6.x in the cluster environment.
• Also responsible for installing and configuring third party software necessary to test the product such as IBM Http Server, IBM WebSphere, Apache Tomcat, DB2 etc.
• Involved in Enterprise Application Integration (EAI).
• Installation of Versata Logic Suite / Studio for Web Sphere Application Server.
• Developed integration tier using CORBA interface using Java IDL, RMI-IIOP.
• Worked with Ant Build scripts and Unix Shell Scripts for the automatic configuration of the project and deployment of jar files into the WebSphere App. Server.
• Maintained the local Apache web server running on a Solaris server.
• Documented all procedures and other important issues.
• 24 x 7 infrastructure support to all clients in testing and production environment.

Environment: IBM AIX, SUN Solaris, Redhat Linux, UNIX and Windows NT/2000/2003, WebSphere Application Server 5.x/6.x ND, IBM HTTP Server 6.0/6.1, Apache Web Server 2.0, Apache-Tomcat 6.x, LDAP, Java 1.3/1.4, J2EE, JSP, Servlets, EJB, XML, JDBC, JavaScript, Oracle 9i/10g, DB2 8.2, HTML, UIDP V5, WSCP.

Confidential

WebSphere Administrator

Responsibilities:

• Installed and configured WebSphere Application Server V6 on Linux platform. Fixing of configuration and installation problem
• Created and configured a cluster, includes multiple vertical and horizontal clones for testing.
• Installed fix packs to over come WAS problems and installed, configured SunOne WebServer 6.0.
• Involved in setting up an Environment for Application packaging and deploying Enterprise Application Archive (EAR), Web Application Archive (WAR), JSPs and Servlets in staging and production.
• Developed ANT scripts to automate the builds process and good knowledge of WSADMIN scripts.
• Developed automated processes to check disk usage and perform clean up of file systems on SUN Solaris using shell scripting.
• Designed and tested the Memory to memory Session Replication instead of the database Session Persistence as a cost effective solution and to avoid overhead.
• Configuring WebSphere Application Server on multiple platforms for both horizontal and vertical scaling for Work Load Management.
• Configuration of JDBC Providers, Data Source, Virtual Hosting, Global Security, SSL and LDAP.
• Involved in creating Problem Management Records to report WebSphere Application Server problems.
• Migrated test and production environments from version 5.0 to version 6.0.
• Application support in testing with different testing tools (Load Runner, Rational Quantify) for identifying issues, tracking bugs and solving the problems.
• Enabled Performance Monitoring Service (PMI).
• Collection of JVM statistics, garbage collection data for monitoring the heap and physical memory.
• Updated to new WebSphere security Model which includes role-based security model, Java2 security and JAAS.
• Assigned different user roles as MONITOR, OPERATOR, CONFIGURATOR, and ADMINISTRATOR.
• Configured SSL between Web Server plug-in and Web Container using Self-signed Client-side Certificate.
• Enabled Tracing on different components for problem determination.
• Assembled and deployed the application in staging and productions.
• Analyzed Activity log files and diagnosed Application Server problems using Log Analyzer.
• Monitored and analyzed performance with Resource Analyzer and Tivoli Performance Viewer.
• Good Knowledge of Edge Components Failover (Active/Standby), HTTP Server Failover (Active/Active), Web Container Failover, EJB Container failover, Session Affinity and Session Persistence.
• Assembled and Deployed the application in staging, in productions, following change management practices and 24/7 support, worked in shifts.

Environment: WAS 5/6, SunOne WebServer, Oracle, Red Hat, AIX, J2EE1.3/1.4, Java2.0, JSP1.2, EJB2.0, JDBC2.0, XML, ANT, Shell and CVS.

Confidential

WebSphere Administrator

Responsibilities:

• Installed and Uninstalled WebSphere Application Server product on Linux and Windows Operating System (WebSphere Application Server v6.0/6.1).
• Applied required fixes to WebSphere Application Server, IBM Http Server in development and production environment.
• Troubleshooting Application, Application Server, Database issues in test and production server environment.
• Open support tickets (PMRs) with IBM Support for WAS related issues. Collect required data to provide to IBM Support team.
• Archive Application, Application Server, Web logs and Custom application logs every 1st week of the month and when required.
• Scheduling Production Deployments with team, Friday night maintenance activities, and deploying applications in development environment as per requirement.
• Configuring database resources through WebSphere Application Server admin console.
• Applied Refresh packs, Interim fixes using updateinstaller utility and update command in Test and Production Server environment for WebSphere Application Server v6.0.
• Configured IBM Http Server “remote administration setup” through WAS admin console.
• Created Application Server parameters required by each application.
• Created profiles from command line for deployment manager and application server in production and test environment.
• Created resources in WebSphere Application Server v6.0 at cell, cluster, node and server level.
• Written shell script to monitor TAM, IBM Http Server, scheduler process in test and production server environment.
• Installed and configured JDBC type 2 and type 4 drivers in test and production server environment.
• Deployed the applications in Testing, Staging and Production Environments, following change management practices.
• Involved in administering Windows 2000 and 2003 Servers and Terminal Servers.
• Created Linux and Windows VM’s on VMware 3.X hosts and involved in cloning of VM’s to replicate WAS environments for various POC’s and Testing purposes.
• Installed and configured IBM DB2 database and setup LDAP security to the Applications.
• Installed EARs, WARs and configured application specific JVM settings, Web container parameters using the Admin Console, following the change management requests.
• Created and Managed User roles and Groups for Securing the Resources using local operating system authentication.
• Created the user lists and groups in LDAP Servers and mapped them to the enterprise applications running on the Application Servers.
• Involved in configuring SSL b/w Web Browser, Web Server & Application server and Worked with Key stores and Trust stores if any of the certificates are expired.
• Involved in Configuring Single Sign On (SSO) with Tivoli Access Manager for Websphere Application Server.
• Used Tivoli Performance Viewer/Wily Introscope to monitor WebSphere Applications and tuned the environment accordingly like changing the JVM Heap, Connection Pool settings.
• Involved in Troubleshooting Admin Server start-up issues, Java code defects after deployment, like class path issues and errors in application properties files by checking JVM logs and Plugin-logs.
• Involved in Trouble shooting and Performance tuning using Resource analyzer and Log analyzer.
• Supported applications 24X7 on-call on a rotational basis.

Environment: IBM WebSphere Application Server ND V6.X, Oracle10g/11g, DB2, IBM HTTP Server 6, Tivoli Access Manager, IBM TDS 6.2, Redhat Linux 4/5, Windows NT/2000/2003, Microsoft IIS 5.0& 6.0, Peregrine Change Management tool, XML and Shell scripting.