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Java J2ee Developer Resume

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Chicago, IL

Objective:
Around 7+ years of diversified experience in IT Industry inclusive 5+ years of experience in Middleware Administration, I am seeking a position within an organization as a WebLogic Administration and Client/Server Application Development.
Professional Summary:

  • Dedicated and hardworking professional having around 7+ years of IT industry experience in the field of Client/Server Applications and Middleware Server Administration.
  • 5+ years of industry experience in BEA Weblogic Application server 7.x/8.x/9.x/10.x administration under heterogeneous environments like UNIX, RHEL, SUN Solaris 8.0, 9.0, 10.0, IBM AIX and Windows NT .
  • Excellent working knowledge of Operation & Production Support with large mission critical systems in multiple technologies and platforms including WebLogic, Apache, JBoss, WebSphere, UNIX, Windows NT, and Oracle.
  • Extensively worked on BEA WebLogic 8.x, 9.x, 10.x,11 Server, Apache http Server, Apache Tomcat Server as administrator for Server Installations, Configuration, Application components deployment, performance tuning including troubleshooting and maintenance.
  • Installed and configured WebSphere Application Server 6.0.
  • Provided 24x7 on call support in production environment on rotation basis.
  • Excellent working knowledge in configuring multiple Weblogic domains including machines, manage servers, node managers and cluster environments.
  • Deployed various WAR, JAR, EAR and J2EE applications on managed servers and in clustered environment using Console or auto deployment scripts in stage and production.
  • Configured and administered JDBC Connection pools and JMS Connection Factories and implemented other services like JNDI and SNMP.
  • Expertise in migration and up gradation of Weblogic Server and updating JDK versions, applying patches and installing service packs for Weblogic server.
  • Excellent working knowledge in finding Memory Leaks and adjusting JVM Heap Size and Garbage Collector parameters during performance monitoring and performance tuning of WebLogic server.
  • Extensive hands-on experience in setting up multiple clusters and implementing Load Balancing, High Availability and Failover functionality.
  • Configuration of WebLogic proxy plug-in and applications on servers like Apache 2.0 HTTP Server, Apache 2.2 HTTP Server ,Apache TOMCAT 5.x, 6.0 and Sun One (Iplanet) 6.0 , 7.0.
  • Extensive experience in configuring and managing secured environments using SSL and digital certificates.
  • Installed and configured Wily agent, Wily enterprise manager and Introscope Workstation and provide application monitoring and measurement using Wily Introscope, HP OV.
  • Experience in creating and running cronjobs for scheduled jobs.
  • Developed startup and shutdown scripts for the Weblogic servers.
  • Configured weblogic JDBC connection pools with databases like Oracle 9i/8i, My SQL, MS SQL Server, MS Access and DB2.
  • Experience in developing web based applications using JDK 1.3/1.4/1.5/1.6, JAVA/J2EE, Applets, Servlets, JSP, RMI, EJB’s, HTML, XML, JavaScript and JDBC.
  • Coordinated with Oracle/BEA to resolve issues related with BEA WebLogic products.
  • Excellent problem solving skills with a strong technical background and good communication and interpersonal skills. Self motivated and a good team player.

Education

  • Bachelor of Technology in Electronics and Communication Engineering.

Technical Skills

Web/Application Servers

BEA WebLogic Server 8.1/9.2/10.3,11, Apache Server 2.0.x/2.2.x, JBoss Server 3.x/4.x/5.x, Tomcat Server 5.5/6.0, Sun ONE/iPlanet 6.0/7.0.

Development technologies

Languages
C, C++, Java, Visual Basic, ASP, SQL, PHP, HTML, XML/XSL and PL/SQL.
J2EE Technologies/Services
J2EE, EJB, Struts, JMS, Applets, Servlets, JDBC/ODBC.
Scripting Languages
WLST, JavaScript, Shell Script, Python and Perl
Tools
Samurai, Wily Introscope, Remedy/PAC2000, LoadRunner, JMeter
Databases
Oracle 8i/9i/10g/11i, DB2, Sybase, Point Base, MySQL, SQL server and MS Access
Protocols
TCP/IP, FTP, SSH, RDP, SMTP, SOAP, SOA, HTTPS and HTTPS
Operating systems
UNIX, Linux, AIX, Solaris and Windows NT/2003/2008.

Professional Experience
Confidential, NC Apr 2010– Till Date Role: WebLogic Administrator
Responsibilities:

  • Installed, Configured and administered Oracle WebLogic Server 10.0 MP1,10.0 MP2, 11g and Webservers like iPlanet/Apache in Development, Test and Production Environments.
  • Deployed applications (WAR, JAR and EAR) using WLST, Anthill
  • Maintained Load balancing, high availability and Fail over for the servers
  • Installed and Configured iPlanet/Apache Plug-ins for WebLogic.
  • Installed and configured Siteminder for Sunone.
  • Configured and created JMS queues & topics ,Connection Factories, Datasources, connections pools & multi connection pools.
  • Extensively involved in Tuning the server.
  • Set up Secure Sockets Layer (SSL) communication between iPlanet and the WebLogic Application Server.
  • Writing various posting scripts for log rotation, log analysis.
  • Migrated WebLogic Server applications from existing version 8.1/9.2 to 10.0 MP2.
  • Involved in performance tuning of JVM and used Garbage collection Algorithms for better

performance.

  • Monitor and managing the weblogic server instances using WSLT and also for the automation

purpose.

  • Involved in trouble shooting and fixing day-to-day problems of the applications in production, production-Fix and testing environments.
  • Configured LDAP using directory Server for user authentication
  • Installed BEA patches using SmartUpdate tool, and troubleshooting application and post- installation issues.
  • Installed and Configured Wily Introscope and to monitor weblogic servers.
  • Provided 24x7 on-call support for production / non production environments.

Environment: WebLogic server 8.1/9.2/10.0,11g MP2,HPserver automation tool , J2EE,Apache 2.2, Sunone,Sun Solaris, RedHat Linux 6, Anthill,Oracle 10g, MQ client 6.0, Wily7.2.5/8.2.3,Remedy, Jms, JRockit , WLST.

Confidential, Austin, TX Feb 2009 – Mar 2010 Role: Middleware Administrator
Responsibilities:.

  • Installed (GUI, Silent, Console mode), configured and administered WebLogic Server 8.1/9.x/10.x in RedHat Linux and Sun Solaris environments.
  • Extensive working experience in setting up multiple domains, including machines, managed servers,node managers and cluster environments.
  • Installed and Integrated WebLogic with Proxy servers (Apache and iplanet) and Authentication policy servers (Siteminder 5.5 and 6.0).
  • Installed and configured Websphere Application Server 6.0.
  • Provided 24x7 on-call support for production / non production environments.
  • Worked on Tuning the Weblogic Application Server, Applications and WebServers by changing the Heap Size parameters and tuning JVM’s Garbage Collector.
  • Involved in the migration of applications from WebLogic 8.1 to WebLogic 9.2.
  • Worked on monitoring tools like HP Openview, wily introscope.
  • Configured Node manager for administering the managed servers in Weblogic.
  • Configured and administered JDBC, JMS, JNDI, objects in Weblogic Server 8.1, 9.x, and 10.x.
  • Created SSL and Digital Certificates for requesting, generating and implementation for the communication between web server and the Application Server.
  • Involved in documentation of environment.
  • Deployed the applications on multiple Weblogic Server instances and maintained Load balancing, high availability and Fail over for the servers.
  • Modified existing scripts for automating deployment and administration tasks for recycling the application server, deploying customer applications, logs rotation, monitor applications.
  • Upgradation of WebLogic servers in development, testing and production environment and applying patches.
  • Troubleshoot hardware and software problems, and interact with IT staff or vendors in performing complex testing, support and troubleshooting functions.

.Environment:JDK,JRocket,J2EE,JMS,MBeans(JMX),BEAWebLogic8.1,9.2,10,WebSphere6.0,BMC patrol,Jython,HpOV,SiteMinder 5.5/6.0,Tomcat 5.5, WLST, CVS,Sun One 6.0(iplanet), ECM, Apache,RedHatLinux 5, Sun Solaris 9.

Confidential, Sacramento, CA Oct 2007 – Dec 2008 Role: WebLogic Administrator
Responsibilities:

  • Install, configure and administration of Bea WebLogic Server 8.1/9.x in various environments.
  • Installed and configured proxy server (iPlanet).
  • Deployed the applications, formats of WAR, JAR and EAR in WebLogic 8.1 SP5/9.x.
  • Configured and administered JDBC, JMS, JNDI in WebLogic Server8.1/9.x.
  • Deployed the applications on multiple WebLogic Servers and maintained Load balancing, High availability and Failover functionalities.
  • Configured Clustering EJB objects, JDBC connections and JMS connection factories.
  • Configured Node manager for administer the Managed servers.
  • Configured and administered WebLogic server with Oracle9i/10g database.
  • Used WLST to had an automated way of creating and managing domains..
  • Setting up the cluster environment for WebLogic Server integrated with multiple workflows.
  • Configure and administered Connection pools, multi connection pools and Data Source for JDBC connections.
  • Configured applications in various work environments like Development, System Test and Production.
  • Troubleshooting multicast issues using Weblogic Java Utility Multicast Test.
  • Utilized the weblogic.Admin utility for retrieving and analyzing the Thread dump information,

inding the Web Logic’s Server state information, license information, storing user credentials etc.

  • Troubleshooted emerging application issues, from WebLogic configuration side.
  • Setting up the SSH keys for different application user ids for automating tasks from remote boxes.
  • Developed UNIX shell/WLST scripts and auto deployment process.
  • Involved in documentation of environment using Visio tool.
  • Applied the patches to the WebLogic servers.

Environment: JDK1.4/1.5, JSP, Servlets, EJB, JDBC, JMS, Oracle9i/10g, WebLogic Server 8.1 SP5/9.2
MP2, Python, SSL, iPlanet , WLST, Wily Introscope, Solaris,IBM AIX 5.3.

Confidential, Chicago, IL Sep 2006– Aug 2007 Role: Weblogic Administrator


Responsibilities:

  • Performed WebLogic Server administration tasks such as installation, configuration, monitoring and performance tuning.
  • Involved in WebLogic 8.1 to WebLogic 9.0 upgrade, JVM upgrade, JDK upgrade.
  • Installed and configured Apache HTTP server 2.0 to work with WebLogic Server 8.1/9.0.
  • Created bash and ksh scripts to monitor domains, recycle clusters, monitor disk space, monitor number of Apache connections, and ran them as cronjobs.
  • Configured custom execute queue in WebLogic 8.1.
  • Deployment and troubleshooting of JAR, WAR, and EAR files in clustered environment.
  • Configured and administered JDBC Connection Pools/Multi Pools/Data Sources on WebLogic Server 8.1/9.0.
  • Troubleshooting WebLogic Application Server connection pools and connection manager with Oracle 9i.
  • Monitoring error logs, fixing problems and tuning parameters on Weblogic environment.
  • Configured and setup Secure Sockets Layers (SSL) for data encryption and client authentication.
  • Set up WebLogic domain with a single server instance for developers on their windows machines
  • Configured and deployed applications in various work environments like Development, Test, Certification and Production.
  • Developed scripts to monitor JDBC Connection Pool Status, JVM Heap Size, and JMS Messages in the Destination queues in the production environment.
  • Provided active support for Load/Stress Testing, troubleshooting and performance tuning.
  • Provided 24/7 on-call production support.

Environment: WebLogic server 8.1/9.0, JDK 1.3 J2EE, JDBC, Apache HTTP server 2.0, Oracle 9i, MQ series, Solaris,SVN, Windows NT

Confidential Jun 2004– Aug 2006 Role:Java/J2EE Developer
Project Description
The Global Timecard System (GTS) was a replacement of the Package Center. The system is being implemented using J2EE technology running on JBoss Application Server under Windows operating system. This system is used mainly for tracking Package.
Responsibilities

  • Involved in the design of the applications using J2EE. This architecture employs a Model/View/Controller (MVC) design pattern.
  • Implemented MVC architecture using Struts 1.1 in terms of JSP and Servlets.
  • Responsibilities involved developing of Action Classes, Form Beans and JSPs.
  • Written Enterprise Java Beans (EJB) to implement business logic.
  • Development entails usage of J2EE technologies like Struts, JDBC and JBoss Application Server.
  • Written JavaScript for validation of page data in the JSP pages.

Environment : J2EE, Java, JSP, Strut 1.1, EJB, JBoss 4.x, XML, JavaScript, CSS, Oracle, Junit, Eclipse.

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