SUMMARY

• Over 7+ years of middleware Administration providing support for development, testing, Staging and production environments and enhancement of business applications in java j2ee.
• Extensive experience with Administration, installation and configuration of WebSphere Application Server 8.0/7.0/6.1/6 , 0/5.1/5.0, Tomcat 7.0/6.0, JBoss 6.x, IHS, Apache web Server, IIS and Sun One Webserver, Sun One Directory server (LDAP), and Site Minder Administration on AIX, Linux, Solaris and Windows.
• Expertise in deploying the applications on clustered and standalone WebSphere Application servers and maintaining Load balancing, failover, high availability.
• Experience with installation and configuration of WebSphere plug - in for IBM HTTP Server, IIS and Sun one webserver and managing the plug-in files on webservers.
• Excellent troubleshooting skills on issues related to WebSphere, apache, tomcat, JBoss servers, Networking, Database, UNIX and applications and worked with respective teams to resolve them.
• Experience in Updating the existing configuration and applications from WebSphere 6.x to 7.0 and 8.0. using WAS Pre-Upgrade and WAS Post-Upgrade tools on Linux, AIX and Sun Solaris.
• Deploying Enterprise Java Beans (EJB’s) and monitoring the Application servers and Web servers, troubleshooting performance issues using the Log messages and Log files.
• Expertise in managing JNDI, Managing Security, Configuring and monitoring JMS.
• Experience in configuring F5 Load Balancer and Big IP Load Balancer.
• Install and configure IBM HTTP Server, Apache Web server and Sun One Web server and integrate them with the WebSphere Application Server.
• Experience in using Wily Introscope for monitoring, troubleshooting and performance tuning of WebSphere domains.
• Expertise in implementing security SSL Certs and SSL Mutual Authentication.
• Expertise in securing administrative Server using Authentication, Authorization, Certificates, Credentials, Single Sign On, Permissions, WebSphere Resources (Servlets, JSP files, HTML files), LTPA user registry.
• Experience in configuring the startup scripts for Application Servers using sudo command and configuring the system scripts for Appservers, Nodeagent, DMGR, webservers.
• Adept at writing JACL, Jython and Python scripting using wsadmin, and also shell scripting for automation of WAS administration and deployment tasks
• Experience in creating new environment setup and creating Profiles, DMGR, Cell, custom nodes and federating to DMGR.
• Involved in setting up cluster environment for WebSphere Server integrated with multiple workflows.
• Strong in installation, configuration and maintenance of WebSphere MQ
• Configured Queue Connections Factories, Queue Definitions and Listener Ports in order to provide connectivity to Enterprise MQ infrastructure.
• Expertise in developing Shell scripts (including sh, ksh, bash) to administer and automate batch job scheduling including Server Start/Shutdown, backup and recovery processes.
• Database knowledge using SQL, PL/SQL, Oracle and MS SQL Server.
• Experience in trouble shooting various applications specific or any J2EE (JSP, Servlets, EJB, JNDI, JMS) code related issues.
• Experience in developing web based applications using HTML, Java, JavaScript, Servlets, J2EE, JDBC, EJB, JSP, JMS and PERL.
• Proficient in performance tuning and monitoring using various tools like Wily IntroScope and Tivoli Performance Viewer, configuring JProbe, in order to monitor Application servers
• Experience with installation and configuration of Tomcat, JBoss for intranet applications including cluster environment for JBoss with all configuration mode.
• Expertise in installation and configuration of JBoss Application server and configured JBoss Application Server with db2 database.
• Strong in deploying applications, applying fix packs, maintenance, troubleshooting and performance tuning of JBoss.
• Involved in tuning JVM’s with right heap sizes and troubleshooting high memory issues for JVM’s by enabling verbose GC.
• Worked with developers to define and configure Application Servers, virtual Hosts, Web Applications, Web resources, servlets, JDBC drivers and Servlets Engines-as well as deployment of EJB’s across multiple instances of WebSphere.
• Working on PMR’s with IBM on problem determination and resolution.
• Working with different teams and all level of organizations; web-base application, webtechnology and business processes expertise.
• Provided 24/7 on call support in Production environment.

TECHNICAL SKILLS

Application Servers: Websphere Application Server (WAS) 5.x/6.x/7.x/8.x, Tomcat and JBoss 4.x/5.x

Web Servers: IBM HTTP Server 1.x,2.x,6.x,7.x,8.0 SunONE WebServer, Apache 2.x Access Management CA SiteMinder, Tivoli Access Manager 5.x/6.x

LDAP: SunONE Directory Server, IBM Tivoli Directory Server

Database: IBM DB2, Oracle 9i, 10g, 11g SQL Server 6.x/7.0/2000

Messaging: WebSphere MQ 5.3, 6.0

Programming Languages: Java, C, C++, SQL, PL/SQL, HTML, XML, Java Script, ServletsJSP, JACL, Jython, Python, XMLConfig, Shell Script, ASP, PERL

Networking & Communication: TCP/IP, HTTP/HTTPS, RMI/IIOP, SOAP, UDP, FTP, SFTP, Telnet

Protocols: SSH, SSL, Putty

Operating Systems: IBM-AIX, Sun Solaris, Linux, UNIX, Windows 2000/NT.

Other tools: Tivoli Performance Viewer, Wily Introscope, Rational Rosecygwin

PROFESSIONAL EXPERIENCE

Confidential, CA

WebSphere Administrator

Responsibilities:

• Installation, Configuration, Tuning, Capacity planning and troubleshooting of Websphere Network Deployment Manager 6.x/7.0/8.0 and HTTP Server, Apache, CA siteminder on different environments
• Installed, created and configured web instances to application server using web server plug-in.
• Created JDBC Providers, Datasources, and JAAS authentication aliases in order to provide connectivity to Backend databases like Oracle and DB2.
• Deploying the J2EE applications on the horizontal and vertical cluster environments.
• Configured Queue Connections Factories, Queue Definitions and Listener Ports in order to provide connectivity to Enterprise MQ infrastructure.
• Installed and configured wily Introscope 8.x/9.x for WebSphere Application Server on UNIX, Linux and AIX environments.
• Managing and Monitoring the JVM performance by Application Server Heap Size, garbage collection and taking Thread dumps.
• Involved in BigIP and F5 configuration for load balancing the traffic between the data centers.
• Installed SSL certs on the web Servers using ikeyman tool and gsk7cmd.
• Developed several scripts using ksh, and bash to automate jobs.
• Monitored free space, disk usage, locating files, checking & clearing log files, administration & monitoring of file systems, network & virtual memory statistics
• Supported Testing team in Regression, Load and Integration testing during the quarterly release management cycles.
• Configued Adminconsole security on WebSphere Application servers and creating users and groups with various roles to access the WebSphere admin console using the LDAP repository.
• Installation of fix packs, eFixes, and cumulative fixes to the existing infrastructure.
• Migration of Websphere v6.x to v7.0/8.0 and Websphere to the JBoss 4.3.
• Automated configuration, troubleshooting, deployments using JACL and JYTHON scripts used adminconfig, adminapp, admincontrol and admin task.
• Developed scripts for starting, stopping application servers on cluster environments and developed the scripts for installing and uninstalling EAR, WAR applications.
• Primary Support in deployment,installation and configuration of Linux Servers in production environment
• Analyzed and resolved problems associated with server hardware and applications software for improving system performance, availability and reliability
• Analyzed Heap dumps and Thread dumps using Heap and Thread Analyzer and resolving the problems
• Involved in troubleshooting high memory issues for JVM’s by enabling verbose GC.
• Systems monitoring and administration of servers for day-to-day problems, patches, user administration, hardware failure, monitoring log files, backup, software up gradation, configuration changes and documentation
• Working on PMR’s with IBM to solve various issue related to the environment.
• Improving the performance of WebSphere Application Server by tuning JVM settings, Connection pool settings, servlet caching, web container thread pool etc.
• Worked with developers and QA team in various stages of development and testing the application from DEV to Test to QA and PROD environments.
• Worked on 24X7 support role.

Environment: WebSphere Application Server 6.x/7.x/8.x, apache 2.2.15/2.2.28 , JSP, Servlets, EJB, BigIP, F5, LDAP, JDBC, XML,RHEL 5.x6/x, windows 7, Jython, Oracle 9i, 10g, 11g, DB2, JDK 1.6/1.7, SQL server, Apache and IHS.

Confidential, CA

Middleware Engineer

Responsibilities:

• Performed Installation and Administration of IBM WebSphere Application server 6.x/7.x and IBM HTTP Server 1.3x/2.x/7.x
• Maintaining of large number of WebSphere applications running on several AIX, SOLARIS, HPUX and Windows servers.
• Configured JDBC resources, data sources and bounded to the J2EE applications, configured the connection pools for the data sources.
• Installed and configured remote WebSphere plug-in for IBM HTTP Server. Manually updated plug-in files for IHS servers located in DMZ
• Automated FixPack/eFixes installations, daily backups, log archival and other tasks using shell scripts.
• Created WebSphere cells, Horizontal and Vertical clusters, and added new cluster members
• Involved migration from WAS 6.x to JBoss 6
• Creation of MQ resource objects like Queue, Listeners, and Channels etc for MQ connectivity.
• Installed, configured, administered and supported JBoss 6 on Linux environments.
• Involved in Load balancing/Tuning/Clustering for Jboss 6 Application Server using mod jk
• As a WebSphere Administrator, was responsible to work on the architecture of the projects to plan, implement and support J2EE applications on WebSphere Application servers in UNIX, Linux and AIX environments.
• Deployed the WAR, JAR and EAR applications on WebSphere Application Server and responsible for application changes across development, testing and production environments
• Developed several scripts using ksh and bash to automate jobs.
• Adept in writing wsadmin, JACL, and ANT scripts to automate various WAS administration and deployment tasks such as JVM configuration, application deployment, ear/war installation, JVM export/import, backups.
• Managing and Monitoring the JVM performance by Heap Size, garbage collection, JDBC Pools and taking heap dumps, core dumps and thread dumps to analyze and find the problems in application. expertise in deployment of enterprise applications on WebSphere, Tomcat and JBoss application servers
• Monitored WebSphere Application server using Wily 8 Introscope.
• Identifying the need for and defining channels and queues and monitoring them.
• Responsible for Load balancing/Tuning/Clustering for IBM WebSphere Application Server using Deployment Manager (Network Deployment)
• Configured WebSphere resources like JDBC providers, JDBC data sources and connection pooling and tuning and monitoring them using Tivoli Performance viewer and wily Introscope by enabling PMI.
• Working closely with IBM support on problem determination, and resolution by finding the root cause.
• Deploying and migrating the application from DEV to SIT to Tech Test to Production and providing 24x7 production support.

Environment: WebSphere 6.x/7.x, JBoss 6, MQ 5.3, 6.0, Apache, Tomcat, IBM HTTP Server, Sun Solaris 8, 9, 10,Red Hat Linux, Windows 2003, JVM, F5, Oracle 9i, 10g, DB2, SQL server.

Confidential, NJ

WebSphere Administrator

Responsibilities:

• Responsible for Installing and Configuration of WebSphere Application server 6.1/7, Apache and HIS 6.1/7.
• Provided Support to WebSphere Application Server 5.0/5.1/6.0/6.1/7.0.
• Configured database connectivity using JDBC and Connection pools for Oracle and DB2 backend.
• Automated and scheduled backups on all UNIX Machines using shell scripts.
• Performance tuning was done with respect to system, connection pools. Execute threads and JVM heap size.
• Document and establish standard processes to ensure repeatability for J2EE administrators.
• Troubleshoot environment and application issues and provide root cause summary to application stakeholders.
• Designing of WebSphere Application Server load balancing and fail over by using Workload Management with horizontal and vertical scaling.
• Provided Migration configuration for transactions, security, services, JMS servers and services while transitioning from development to production environment.
• Deployment and Troubleshooting of JAR, WAR and EAR applications in clustered WebSphere environments.
• Configured the Web Server interfaces, session management, virtual hosts and transports for WebSphere Application Servers
• Implemented Load balancing of web applications by configuring plug-in.
• Development of UNIX shell scripts, JACL scripts to automate the WebSphere Administration environments.
• Technical assistance for Web Hosting team on various Application servers and Web Servers including IBM HTTP Server, Apache Web Server, and iplanet Server.
• Performance tuning by Managing and Monitoring the JVM performance by JVM Heap size, garbage collection, execute threads, EJB Cache size, JDBC pools and multi pools.
• Performed extensive trouble shooting experience including stack trace analysis and JVM tuning experience by changing to heap sizes according to the requirement.
• Worked on securing Web Applications. Applied patches service packs for security, performance, bugs etc.
• Monitored free space, disk usage, locating files, checking & clearing log files, administration & monitoring of file systems, network & virtual memory statistics
• Responsible for support and troubleshoot of application changes across different platforms- Development, Testing and Production.

Environment: WAS 5.x/6.x/7.x, Apache, Tomcat, SUN Solaris 8.0/10.0, Linux, Oracle 9i/8i, JDK 1.4/1.5,1.6, JDBC 2.0, Servlets, EJB 2.0, Apache

Confidential

System Analyst

Responsibilities:

• Coded JSP’s, Java beans, managing sessions, and HTML user interfaces.
• Conversion of PL/SQL packages to Java classes
• Creating CRON jobs to automate various system administration tasks using crontab utility on UNIX and AIX environments.
• Created Stored Procedures using PL/SQL to interact with database
• Debugging and troubleshooting the critical issues and finding the root cause.
• Coded Servlets, API’s for connectivity using JDBC.
• Worked closely with other teams for daily activities such as system, network changes on Solaris, AIX, Linux and NT Servers.
• Involved in the testing phase of the product and performed quality assurance.
• Implemented session management to create the dynamic application using Action Servlets.
• Created XML files to store the menu related information.
• Coding java classes which carry out the main business process.
• Developed back end procedures, functions, triggers and java objects on Oracle 8i.
• Responsible for Security implementation and integration testing of the system.

Environment: WebSphere 5.x/6.x, Java, J2EE1.2 AJAX, JSP, Servlets, JavaScript, JDBC, JSF, JSTL,XML, XSLT, Apache Server, POI, HTML, JavaScript, Tomcat and SQL Server, JProbe, UNIX, AIX, NT, Oracle8i, JRun, Windows NT 4.0.