Java Developer/ System Administrator Resume Profile
CA
Summary:
7 years of strong IT experience and 6 years in BEA WebLogic 7.x/8.x/9.x/10.x administration tasks such as day-to-day site monitoring and maintenance, infrastructure configuration, network management, system installation, system backup and restoration, tuning, quality of service management, security implementation and application migration.
- Solid experience in Installing, Configuring, Tuning Troubleshooting of WebLogic Server 8.x/9.x/10.x/11g/12.c in various environments.
- Strong experience with Windows XP/NT/2003/2008, Sun Solaris, Red Hat Enterprise Linux,AIX and HP-UNIX platforms.
- Extensive experience in the Administration, Installing, Configuring Apache 2.0/2.2, Sun ONE 6.1 Web Server iPlanet , Microsoft IIS Server.
- Hands on experience in Installing and ConfiguringJBoss4.x/5.xand Apache Tomcat5.x/6.xApplication Servers.
- Expertise in deploying various WAR, JAR, EAR applications in clustered environment using Admin console WLST scripts.
- Expertise in designing and implementing the WebLogic application configuration management system based on WebLogic Scripting Tool WLST and UNIX Shell Scripting.
- Experience in configuring Node Manager to administer the Managed servers.
- Experience in Web Application development using J2EE and Java related technologies.
- Experience in Clustering of EJB objects, JDBC connections and JMS connection.
- Experience in upgrading JVM's, applying patches and recommending necessary security fixes.
- Extensive experience in managing and monitoring JVM Heap Size by using Wily Introscope and other monitoring tools.
- Experience in Installing and Configuring LDAP Server and integrated with Weblogic Application Server 9.x/10.x/11.x.
- Solid experience in configuring Secured Socket Layer SSL for client authentication and data encryption.
- Experience in Configuring Servlet Engines, Session Managers including planning installation and configuration of WebLogic Application Servers.
- Excellent knowledge of using Oracle, Sybase, MS SQL Server and MS access databases.
- Experience in deploying the applications on multiple WebLogic Servers and maintaining Load balancing, High availability and Failover.
- Expertise in dealing with troubleshooting issues like Server hangs, Application Deadlock, Out of Memory Issue, High memory usage and High CPU.
- Extensively involved in the migration of WebLogic 9.x 10.x 11.x.
- Experience in working with networking team to configure VIP member's on BIG IP F5 Load balancer to provide high scalability, availability and reliability.
- Excellent working knowledge of IBM MQ Series, Site Minder and integrating to WebLogic Server.
- Experience in analyzing SiteMinder server logs and identifying problems with authentication and authorization.
- Experienced in applying plug-ins for WebLogic/iplanet/Jboss Servers.
- Develop scripts in WLST, Jython and Shell scripting to automate and monitor WebLogic routine tasks.
- Experienced in IBM WebSphere Application Server v5x/6x on AIX, Solaris, Linux Windows platforms.
- Solid experience in providing 24/7 application support for Production, PLE, Testing and Development environments.
SKILL SET:
App Servers | BEA WebLogic 7.x/8.x/9.x/10/11,IBM Websphere 5.1/6.0,JBOSS 4.x/5.x,Apache Tomcat 6.0/5.5. |
Web Servers | Sun ONE, iPlanet, Apache, IBM HTTP, MS IIS server 5.1/6.0. |
Languages | Java, C, C , XML, Unix Shell Scripting, JavaScript, VBScript, HTML, PL/SQL, PERL, |
Platforms | Solaris, HP-UX, UNIX, Linux, AIX, Windows All Versions . |
Technologies | J2EE, Servlets, Applets, Swing, EJB 2.0, JDBC, JNDI, JMS, JAAS, AWT, LDAP, SOAP,JSP. |
Databases | Oracle 7.x/8.x, Oracle 9i, Oracle 10g, MS-Access, SQL Server 7.x/2000, MySQL. |
Scripting | JavaScript, UNIX Shell Scripting Korn, Bourne, Bash , Perl,ANT,WLST,Jython. |
Networking Protocols | TCP/IP, Telnet, FTP, SMTP, SNMP, Frame Relay, ATM, XML, HTTP, HTML. |
Tools | Wily Introscope,CA/NetegritySiteMinder,SunIDM,Content Management System CMS , Oracle SOA, Load Runner, Rational Rose, Macromedia,Flash, MS Project 2000, MS Visual Studio 6.0, Dream weaver, MS Office Word,Excel, PowerPoint, FrontPage , MS Exchange Server, Photoshop, Flash. |
Confidential
Java Developer/ System Administrator
Responsibility:
- Installing Apache Http Server, configuring apache plug in for Weblogic and hosting application using virtual host features in apache.
- Installed and Configured JBoss Application Server 5.1 EAP.
- Installed, configured and administered Oracle/BEA WebLogic Server 11g 10.3.x in various environments like Development, QA, and Production on Solaris and Linux Operating Systems.
- Responsible for creating Weblogic domains in Development, QA, Production from scratch.
- Involved in Migrating the setup from WebLogic 10.x 11.x.
- Deployed different types of applications like WAR, JARand EAR files in Weblogic 10.x/11g and JBoss 4.x/5.x.
- Configured Node manager to administer the Managed servers.
- Setting up the cluster environment for WebLogic Server integrated with multiple workflows.
- Configured and administered JDBC Connection Pools/Multi /Generic Data Sources on WebLogic Server 10.x/11g.
- Created and Configured WebLogic JMS Servers, JMS Modules and Bridge to provide interoperability between WebLogic JMS and IBM MQ Series.
- Configured and administered Weblogic server with Oracle10g database.
- Developed Startup, Shutdown and Bounce scripts using WLST.
- Developed UNIX shell scripts that automate the WebLogic Administration recycling the application server, deploying customer applications, logs rotation, monitor applications state, etc.
- Developed scripts to monitor JVM Heap Size, JMS Messages in the Destination queues in the production environment.
- Dealt with troubleshooting issues like Server hang, Application Deadlock, Out of Memory Issue, High memory usage and High CPU.
- Provided support for production environments in activities such as load testing, troubleshooting, and performance tuning.
- Configuring Wily Introscope Agents for different domains.
- Configured and managed secured environments using SSL and Digital certificates.
- Installed and Configured Ldap Server and integrated with Weblogic Application Server.
- Worked on Configuring channel secure CA/Netegrity Siteminder with web servers and Weblogic Applications.
- Upgraded all Production and Non Production systems to WLS 10.3.5 from WebLogic 10.3.0 successfully and installed patches.
- Developed Crontab scripts for timely running jobs and provide server status.
- Administrative documentation for Installation/Configuration Procedures for future use.
- Log files analysis such as WebLogic server logs, node manager logs, Plug-in logs, thread dumps, verbosegc logs for troubleshooting and Problem determination to resolve issues.
- Using Remedy as the trouble ticket and change management tool.
- Worked on coordinating teamwork with the offshore application teams.
- Provided 24/7 on call Production Support.
Environment:
Solaris 9/10, RHEL 4.6/5.2/6.2, Windows Server 2008,WebLogic Server 10.3/11g/12c, Apache 2.0/2.2,JBoss 4.x/5.x, Apache Tomcat 5.x,iPlanet/SunOne 4.x/6.x, IIS,JDK1.5/1.6, IBM MQ Series, HP Site Scope , BMC Remedy, and BIG IP F5 Load Balancer.
Confidential
Middleware Administrator
Responsibilities:
- Performed WebLogic Server administration tasks such as installation, configuration, monitoring and performance tuning.
- Install and configure iPlanet/Sun ONE web servers in all the environments.
- Installing, configuring IBM Websphere Application Server WAS 7.x.
- Installed and configured Apache Tomcat5.5/6.0 and configured SSL with it.
- Deployed various WAR, JAR, EAR applications in clustered environment
- Configured and administered JDBC, JMS, JNDI, and SNMP on WebLogic Server 10g.
- Configure and administer Connection pools, multi connection pools and Data Source for JDBC connections.
- Configure and administer Weblogic server with Oracle9i database
- Configured and maintained queues and topics in WebLogic JMS servers.
- Created Users, Groups and Roles and assigned users to Groups and Roles.
- Configured Apache web server with Apache Tomcat using the plug-in mod jk.
- Configured SSL Secure Sockets Layer and obtained digital certificates, private key for WebLogic and Tomcat to provide secure connections.
- Configured and deployed applications in various work environments like Development, System Test, SIT, RTB, ORT and Production.
- Writing shell scripts for day-to-day WebLogic administration and other administrative tasks.
- Involved in the migration ofWebLogic10g 11g.
- Writing WLST scripts for deployment and to start, stop, bounce servers.
- Created Crontabs scripts for timely running jobs.
- Configured LDAP using Netscape directory Server for user authentication.
- Assisted in Configuring TCP/IP Networking experience in firewalls
- Monitor the JVM heap size using Wily Introscope.
- Troubleshooting by using Thread Dump, Heap Dump and Verbose:gc analysis for Web Logic Server issues.
- Achieved best performance by tuning WebLogic environment, application tuning and kernel level OS tuning by automating the tasks to obtain performance metrics. Tasks include, JAVA Heap, CPU performance, JDBC performance, detecting memory and connection leaks etc.
- Worked with Tuxedo Server to monitor the server performance data for BEA Tuxedo servers
- Installed the WebLogic Service Packs, WebLogic Patches.
- Worked on UNIX ShellScripting.
- Coordinated with the Application Support team to identify and correct issues and bugs relating to WebLogic.
- Documented the installation, configuration and troubleshooting procedures for future reference.
- Proven ability to define System requirements, recommending solutions, analyze capacity and makes appropriate modifications.
Environment:
Oracle/BEA Weblogic Server 10g/11g,IBM WebSphere 6.x/7.x,Apache 2.0, iPlanet/SunOne 4.x/6.x,Apache Tomcat 5.5/6.0,Siteminder,Wily Introscope,Solaris10,RHEL,AIX,HP-UX, JDK 1.5/1.6, J2EE applications, LDAP, JDBC, EJB,JMS, XML, Oracle 11g RAC, Microsoft SQL Server 2005.
Confidential
Weblogic Administrator
Responsibilities:
- Install, configure and administer BEA Weblogic Server 8.x/9.x in various environments.
- Installed and configured Sun ONE Webserver in various environments.
- Installed and Configured Apache Tomcat 5.5 with SSL.
- Deployed the applications, formats of WAR, JAR and EAR in WebLogic 8.1/9.2.
- Configured JNDI server as repository for EJB Home stubs, JDBC data source, JMS connection factories, queues and topics.
- Configured WebLogic server with Sun/Apache server through Apache proxy Plugin.
- Deployed the applications on multiple Weblogic Server and maintained Load balancing, high availability and Fail over functionality.
- Developed many shell scripts to automate the maintenance process of the WebLogic and recover the backed up WebLogic configuration.
- Configured Servlet Engines, Session Managers including planning installation and configuration of Web logic Application Servers.
- Created automated scripts in ANT and Shell for deploying and monitoring
- Installed, Configured and Maintained F5 Load balancer for Load Balancing the Weblogic Server.
- Managed and monitored JVM performance tuning by adjusting WLS Heap size and GC parameters for monitoring the heap and physical memory.
- Configured and managed secured environments using SSL and digital certificates.
- Implemented security and configuration of Siteminder single sign-on configurations and replications for MS Active Directory server
- Worked with IBM Rational ClearCase tool to improve team productivity and efficiency.
- Involved in assisting QA team in Load and Integration testing of J2EE applications on WebLogic Application Server.
- Installed and Configured Wily Introscope for monitoring JVM heap size.
- Dealt with troubleshooting issues like Server hang, Application Deadlock, Out of Memory Issue, High memory usage and High CPU.
- Troubleshooting by using Thread Dump, Heap Dump and Verbose:gc analysis for Web Logic Server issues.
- Performing regular health checks for the servers in the UAT and Production environments.
- Provided 24/7 on call Production Support.
Environment:
BEA Weblogic Server 8.x/9.x,IIS Webserver,Apache Tomcat 4.3/5.5,Sun One Webserever,Solaris 10,Linux,Windows Server,HP-UX,EJB,JDBC,JMS,Siteminder,Wily Introscope, WLST
Confidential
WebLogic Administrator
Responsibilities:
- Install, configure and administer BEA Weblogic Server 7.x/8.x/9.x in various environments.
- Provided support for WebLogic 7.x/8.x/9.xProduction, Development, Testing and Staging environments.
- Installed and Configured Microsoft IIS Web Server and Sun Java System Web Server iPlanet .
- Deployed various WAR, JAR, EAR applications in clustered environment.
- Configured JDBC resources, data sources and bounded to the J2EE applications, configured the connection pools for the various data sources.
- Managing JNDI, Managing Security, Configuring and monitoring JMS.
- Configuring Clusters on WebLogic using the WebLogic Console.
- Developed scripts start, stop, backup recovery processes for web application server administration.
- Developed ANT build scripts and UNIX shell scripts for auto deployment process.
- Analyzing Threaddumps, pstack and prstat to find the problems in application
- Configured LDAP using Netscape directory Server for user authentication.
- Created Crontab scripts for timely running jobs, performed Thread Analysis manually and performed Heap Analysis manually.
- Managing and Monitoring the JVM performance by WebLogic Heap Size, garbage collection, JDBC Pools.
- Using jprobe to diagnose and resolve performance bottlenecks, memory leaks, excessive garbage collection, threading issues and other java coding problems.
- Implemented SSO using Siteminder 5.5 using SAML 1.1 authentication and authorization and implemented between an identity provider and a service provider.
- Involved in assisting QA team in Regression, Load and Integration testing of J2EE applications on WebLogic Application Server.
- Provided support for teams in activities such as Load testing, troubleshooting and performance tuning.
Environment:
Weblogic Server 7.x/8.x/9.x,IIS Webserver, Linux,CVS, , iPlanet, Windows NT, 2000, XP ,Solaris,Oracle 8i, Win2K, Ant1.5.1.
Confidential
Java Developer/ System Administrator
Responsibilities:
- Development UI modules using HTML, JSP, JavaScript and CSS.
- Involved in SDLC Software Development Life Cycle Analysis, Design, Development and Testing.
- Designed and developed front end using JSPs and Java Servlets are used as controllers.
- Developed customized solutions using JSPs, Servlets, Java beans and JavaScript for client request validations and processing.
- Developed Java applets using JDK, Java Swing.
- Development deployment Java EE/J2EE web components on Websphere Application Server 4.0, BEA Weblogic Application Server 7.x.
- Implemented the database connectivity using JDBC with Oracle 9i database as backend.
- Extensive experience in Web Application development using J2EE and Java related technologies.
- Developed business APIs using Stateless Session Beans for accessing data from the database. Used Collection framework in developing the APIs.
- Installation of SUN Solaris 8 on Sun Boxes. Building a development, testing, staging Environment.
- Efficient in configuration, implementation, and administration of TCP/IP, NIS, NFS, LDAP, DNS.
- Creating new file system, permitting user to mount file system, monitoring free space, disk usage, locating files, checking clearing log files, administration and monitoring of disk based file system.
- Software depot and patch management using SD-UX and managing networks by HPUX Management software.
- Being a system administrator, responsible for maintenance of Weblogic Application Servers, iPlanet, Web servers, and Oracle Database Servers.
- Shell Scripts were written to perform application software and third party software upgrade procedures. Written and Developed Scripts for startup and shutdown classes.
- Designed, developed and implemented Backup/Restore procedure for production environment.
- Created Cron jobs for timely running of jobs using crontab at commands.
- Good Knowledge in scripting tools like UNIX Shell scripting and ANT.
Environment: Jrockit IT/JDK 1.4, J2EE, JNDI, JSPs, HTML, XML, JavaScript, Servlets, Java Beans, BEA Weblogic 7.0, ANT, Sun Solaris 8.x.