Weblogic Administrator Resume
Paloalto, CA
SUMMARY:
- 8+ Years of IT experience in WebLogic Server 7.x/8.x/9.x/10.x/11g adapt in all facets of administration, maintenance, deployment and management of enterprise applications.
- Configured and administered JDBC, JMS, JTA, JNDI, SNMP and Node Manager to administer the Managed Servers in WebLogic Application Server 7.x/8.x/9.x.
- Installed and Configured Clusters in WebLogic 7.x/8.x/9.x/10.x/11g environment.
- Installed and configured web servers like Apache, Tomcat, Sun ONE and integrated them with WebLogic.
- Vast experience in deploying applications (JAR, WAR, RAR and EAR) and related troubleshooting in clustered environment using Admin console and WLST scripts.
- Knowledge of setting up Cluster, High Availability(HA) and Failover for Oracle SOA Suite 11g.
- Excellent knowledge of writing UNIX Shell Scripts, Perl Scripts and PYTHON scripts to automate System/WebLogic Admin jobs.
- Hands on experience in administration of Tomcat 5/ 6, Apache HTTP 2.0 Web Server, Microsoft IIS Web Server and Sun Java System Web Server and IBM HTTP Server.
- Experience in deploying J2EE Applications in both Production and Non - Production environments using Oracle SOA Suite 11g.
- Experience in developing the applications on multiple WebLogic Servers and maintaining Load balancing, High availability and Failover .
- Collection of JVM statistics, garbage collection data for monitoring the heap and physical memory.
- Strong knowledge and ability to troubleshoot complex issues for JDBC, EJB, JMS, JTA, JNDI, execution threads and memory including GC issues.
- Extensive hands-on experience with WebLogic console and troubleshooting by using Thread Dump, Heap Dump and verbosegc analysis for Web Logic Server issues.
- Working Knowledge of Service oriented Architecture (SOA) and business process management scheme using WebLogic integration.
- Profound Knowledge of SSL configuration, installation on WebLogic 8.1SP5/9.2 MP2.
- Good knowledge of Siteminder, Wily Introscope and integrating to WebLogic.
- Excellent knowledge of different Databases like Oracle, MSSQL, apart from setting up and integrating them with applications.
- Design and implementation of WebLogic application configuration management system based on new WebLogic Scripting Tool (WLST)
- Knowledge of all phases of Software Development Life Cycle with good designing, coding, testing, debugging, and troubleshooting skills.
- Experience working on UNIX,(sun Solaris, Red Hat Linux, HP-UX, IBM AIX, Ubuntu, and Windows XP/NT/2000/98/95) and integration of the same with WebLogic.
- Provided 24/7 on call support to the development team in both testing and production environment, and analysis (troubleshooting) of log files to resolve issues.
- Excellent Communication and Presentation Skills.
TECHNICAL SKILLS:
Language: Java, C, HTML, XML, JavaScript, ASP, PHP
Web Technologies: JSP, J2EE, JDBC, EJB, JMX, JDK1.3/1.4/1.5, Servlets, Struts, Hibernate, Java Beans, RMI, JNDI, JDBC, JMS, JAAS
Scripting Languages: Java Script, Unix Shell Script, WLST Script, Perl
Databases: Oracle 8i/9i/10g, MS Access, Sybase, IBM-DB2, SQL Server
GUI: Visual Basic 6.0
Web servers: Apache HTTP 2.0 Web server, IIS 4.0/5.0/6.0, Sun One Web Server and IBM HTTP server 6.x
Application Servers: Oracle WebLogic 7.1/8.1/9.x/9.2/10.x/11g, JBoss3.2.x/4.0.x/4.2.x,Tomcat 5, Oracle SOA Suite 11g
Tools: Wily Introscope, HP Open View, Clearcase, Load Runner, Siteminder, Samurai, MS Visio, MS Office, Dreamweaver, UML, Adobe Photoshop, JProbe
Operating Systems: Windows NT/2000/XP, Unix/Linux, Solaris
Networking Protocols: TCP/IP, Telnet, HTTP, HTTPS, FTP, SNMP, LDAP, DNS, ARP, SSL
PROFESSIONAL EXPERIENCE:
Confidential, PaloAlto, CA
WebLogic Administrator
Responsibilities:
- Performed Installation and Administration of BEA Weblogic 10/11g
- Migrating and Upgrading of Weblogic 9.2/10 server instances to Weblogic 10.3.4 Server.
- Performed Installation and Administration of Apache webserver 2.2.14/2.2.19/2.2.20 .
- Migrating and Upgrading of Apache instances from 2.2.14 to 2.2.19/2.2.20.
- Installed and Configured Site Minder.
- Performed Installation and Administration of Oracle SOA Suite 11.1.1.2
- Deployed composite applications using EM console and ANT build scripts for SOA Suite 11g.
- Migrating Oracle HTTP Server Services to Apache.
- Configured SSL Certificates for Weblogic and Apache servers.
- Installed and Configured LDAP server, Configured security providers.
- Wrote scripts for creating, configuring, starting Weblogic servers using WLST.
- Very good Knowledge and experience with ANT, Cruise Control, Maven.
- Setup and configured large Enterprise Weblogic Clusters utilizing BEA’s Weblogic 10 and 9.2 MP1, wrote scripts and Java utilities that determine the performance of the Staging and Production sites.
- Involved in Weblogic 11g/10/9.2/ testing and analyzing performance metrics and creating respective Weblogic resources.
- Deployed the WAR, JAR and EAR applications in Weblogic 10/11g Responsible for application changes across different platforms- development, testing, staging and production environments.
- Developed several scripts using ksh and bash to automate jobs. ( Security audit scripts, password automation scripts, network stats, file storage, etc)
- Created Weblogic domains, managed servers, clusters, machines and start up scripts.
- Involved in the migration of the applications from tomcat 5.5 to WebLogic Server 10.3
- Configured JDBC resources, data sources and bounded to the J2EE applications, configured the connection pools for the data sources. Created the Oracle Application server, JMS Server, JMS Connection Factories, Queues, Topics, Database Store and Message Bridges and monitored.
- Managing and Monitoring the JVM performance by Weblogic Heap Size, garbage collection, JDBC Pools and taking Thread dumps, pstack and prstat and analyzing to find the problems in application. Configured the Session Management i.e. Memory to Memory and Database replication on Weblogic Application server.
- Years of experience in development and deployment of enterprise applications on Weblogic, and Tomcat application servers
- Involved in doing a performance benchmark of Weblogic server by using Load runner.
- Developed scripts (start, stop, backup & recovery processes) for Weblogic application server administration. Developed WLST/JYTHON, ANT scripts, UNIX shell scripts to automate the deployment process.
- Expertise in managing the databases and application servers OEM (Oracle Enterprise Manager grid control.
- Expertise in writing WLST scripts using Jython/Python for starting, stopping servers, Node managers and deploying applications.
- Configured One-way and Two-way SSL Certificates for Weblogic Server
- Working knowledge of tools like IBM Rational ClearCase, which improves team productivity and efficiency
- Used oracle security middleware to control and access to data and to restrict the use of various database resources.
- Monitored Weblogic server resources using Wily 6.0 Introscope.
- Defining and maintaining Queue Managers and MQ Objects on various platforms
- Identifying the need for and defining channels and queues and monitoring them.
- Involved in 24/7 support for production environments
Environment: BEA Weblogic 8.1/9.2/10.3.0, OracleWebSphere 6.x, 7.x, 6.0, Jboss, MQ 5.3, 6.0, iPlanet (Sun One 6.0), Apache, IIS, Sun Solaris 8, 9, 10,Red Hat Linux, Windows 2003, JVM, Cisco Load balancer, F5, Oracle 9i, 10g, DB2, SQL server, CVS.
Confidential, NC
WebLogic/SOA Administrator
Responsibilities:
- Performed 24x7 Production support for the several application across different business areas.
- Installed, configured and administered Weblogic Server 10.3.x/11g on Red Hat Linux 5.x and Windows environment.
- Performed J2EE application deployment and administration including JAR, WAR, and EAR files.
- Initially used Ant for writing build.xmls for building Java/J2ee applications later on migrated to Maven.
- Configure and administered of JDBC, JMS in Weblogic Server 10.3.
- Install and configured SSL certificates for Apache web server in various environments.
- Configured and administered Weblogic server with Oracle9i/10g database.
- Installed and configured of SOA, BPEL, OSB and OHS server.
- Created schemas using Repository creation utility (RCU)
- Configured DB adapters, File Adapters in SOA domain.
- Deployed composite applications using EM console.
- Deployed the applications on multiple Weblogic Server and maintained Load balancing, high Availability and Fail over functionality.
- Responsible for Load balancing and Performance tuning for various WebLogic servers.
- Installed and configured Apache 2.0/2.2 webserver to work with Weblogic server in UAT Stage and Production environments.
- Configured global security in WebLogic using LDAP authentication
- Installed and configured Weblogic 8.x/9.x/10.x plug - ins on Apache 2.x
- Created and Configured Data Sources for database connectivity and JMS resources.
- Used Config wizard and WLST scripts to create and manage Weblogic domains and Node Manager.
- Developed shell scripts to monitor the OWS logs for any exceptions or errors performing regular health checks in production environments.
- Performance tuning of JVM heap size, garbage collections, java stack and Native thread & production performance.
- Monitoring application performance using Wily Introscope. Setting up the Introscope to alert for various metrics (CPU, heap, threads).
- Created Korn Shell scripts to automate Cron jobs and system maintenance. Scheduled cron jobs for job automation.
- Application s migration of Weblogic server from previous version to current versions.
- Troubleshoot Weblogic Server connection pooling and connection manager with Oracle, DB2 checking the code in to cvs.
- Researched and troubleshooted emerging application issues, from Weblogic configuration to code issues.
- Analyzing thread dump and heap dump for Weblogic application server.
- Used Hudson and Jenkins continuous integration tools for doing the regular builds in DEV, QA, UAT, PP and Prod.
- Experience with Oracle Weblogic, Sql, UNIX Shell scripting, CVS or other source control system and multi-threaded/multi-process application.
- Active involvement in monitoring the server performance, network traffic to reduce performance bottleneck.
- Deployed WARs, EARs using Weblogic Admin Console as well as running scripts.
- Experience in configuring Weblogic domain across Data Centers in production environment.
- Developed the scripts to handle weekly System Administration tasks such as backup procedure, system cleanup, everyday system tasks etc.
- Worked with F5 Networks-Big-IP for high availability load balancing of traffic to the various internet web services.
- Created Service request with Oracle to fix unresolved bugs or issues
- Worked on the version control systems SVN and CVS and source forge control system.
- Responding to the HP- Open View alerts as per SLA.
- 24X7 on call production support, technical support, trouble shooting, problems related to oracle Weblogic Server.
- Installed and Configured Tomcat tcServer 6.x/7.x, WebSphere Application server 6.x/7.0, and Apache ERS.
- Installed, configured and maintained Tomcat tcserver on more than 400 servers across 13 non- prod and 2 prod environments.
Environment: Weblogic Server 10.3.x/9.x, JDK1.6, J2EE, PEGA, JSP, Servlets, EJB, LDAP, JDBC, XML, Apache, Oracle9i/10g, HP-Open View, Site Minder, SOA, WLST, Python, UNIX (Solaris 8/9.0/10.0, LINUX 5 ), Windows.
Confidential, Chicago, IL
Weblogic Administrator
Responsibilities:
- Configured database connectivity using JDBC and Connection pools. Oracle Application server 9i/10g was used in the 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.
- Develop domain monitoring java class using JMX to collect JDBC, JVM, and Execute Queue statistics for Managed Servers.
- Document and establish standard processes to ensure repeatability for J2EE administrators.
- Troubleshoot environment and application issues using BEA WLS support patterns as the standard methodology and provide root cause summary to application stakeholders.
- Was responsible for overall architecture of a BEA deployment, using Portal, Integration and WebLogic Server.
- Provided Migration configuration for transactions, security, services, JMS servers and services while transitioning from development to production environment.
- Installed Oracle 8i/9i/10g client software on the application server and configuring the connectivity using JDBC drivers for the database.
- Deployment and Troubleshooting of JAR, WAR and EAR applications in clustered environment with WebLogic.
- Installed and Configured LDAP server.
- Implemented Load balancing of web applications by configuring Weblogic proxy plug-in.
- Performance tuning by Managing and Monitoring the JVM performance by Weblogic Heap size, garbage collection, execute threads, EJB Cache size, JDBC pools and multi pools.
- Actively involved in upgrading to various new Service packs regarding Weblogic, Sun ONE, iPlanet, Apache/Tomcat.
- Expertise in writing WLST scripts using Jython/Python for starting, stopping servers, Node managers and deploying applications.
- Performed extensive trouble shooting experience including stack trace analysis and JVM tuning experience by changing to heap sizes according to the requirement.
- Wrote scripts (start, stop & ping) for web application server administration. .
- Configured and monitored JNDI, security realms. Configured Apache web server and Weblogic plug-in.
- Configured SSL Certificates for Weblogic and Apache servers.
- Worked on securing Web Applications. Applied patches service packs for security, performance, bugs etc.
- Experienced in working with Aqualogic Integrator(ALINT) which is a combination of WLI( Weblogic Integration) and ALSB( Aqua Logic Service Bus).
- Worked with IDM and Oracle security Middleware teams in troubleshooting issues in dev, test, stage and production environments.
- Monitored free space, disk usage, locating files, checking & clearing log files, administration & monitoring of file systems, network & virtual memory statistics
Environment: WebLogic Server 8.1/9.2/10.2, 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, San Antonio, TX
Weblogic Administrator
Responsibilities:
- Installed and configured enterprise applications on BEA Weblogic Application Server 8.1, Iplanet Web Server and Iplanet Directory Server(LDAP) in Sun Solaris environment.
- Implemented the Weight based routing when there is configuration differences in the Hardware.
- Deployed Various J2EE applications on to the clusters and Application servers and supported accordingly.
- Configured JDBC resources, data sources and bounded to the J2EE applications, configured the connection pools for the various data sources.
- Configuring Execute Threads, Connection Pools and JMS Bridges etc. for different components of the system.
- Troubleshooting applications, servers, clusters, OS, testing problems and customer problems.
- Using Jprobe to diagnose and resolve performance bottlenecks, memory leaks, excessive garbage collection, threading issues and other java coding problems.
- Developed shell scripts, Perl scripts to automate the maintenance process of the Web Logic and recover the backed up Web Logic configuration.
- Created Weblogic Portal domain and created projects application and portal application in Weblogic workshop.
- Created user groups, roles and assigned users to Groups and Roles.
- Created Portal and Portlets on WebLogic portal admin console.
- Created books, pages, portlets, skins and themes.
- Created Entitlements for Portal Resources and Setting Up and Managing Content. Involved in implementing different data types and defining data types in WebLogic portal.
- Provided WLST (Jython script) and configuring various WebLogic components/services via Jython script.
- Developed UNIX shell scripts that automate the Weblogic Administration (recycling the application server, deploying customer applications, logs rotation, monitor applications state, etc.)
- Configuring SSL Certificates for Weblogic server.
- Involved in assisting QA team in Regression, Load and Integration testing of J2EE applications on WebLogic Application Server
- Effectively interacted with the users on a daily basis, decreasing downtime and increasing user productivity.
- Providing 24x7 supports to testing, staging and production environments
Environment: SUN Solaris 2.8/5.8, Windows 2000, Weblogic Application Server 8.1, IPlanet Web Server 6.0,LDAP, Java,J2EE, JSP, Servlets, EJB, XML, JDBC, JavaScript, ORACLE, DB2,Oracle 9iHTML, Shell
Confidential
Weblogic Administrator
Responsibilities:
- Performed WebLogic Server 7.x/8.x administration tasks such as installing, configuring, monitoring and performance tuning.
- Installed and configured Sun ONE (iPlanet) Web Server and Iplanet
- Configured plugins iPlanet Web servers to work with WebLogic server.
- Configured and administered Connection Pools, multi-connection pools and Data source objects for JDBC connections.
- Configured and maintained of WebLogic server with JDBC, JMS, JNDI, SNMP and J2EE Services and Data sources.
- Configured JVM tuning for WebLogic application server.
- Configuration and Clustering of WebLogic Application Servers.
- Troubleshooting WebLogic server connection pooling and connection manager with Oracle 9i.
- Set up WebLogic domain with a single Server instance for developers on their Solaris machines.
- Configured connectivity with SSL Certificates for web servers and App servers for applications in all environments.
- Monitored system upgrades and maintenance on production systems for health of application server components and the applications deployed on them pre and post implementation.
- Interacted with development teams and third party support personnel for quick and effective issue/case resolution and patch implementations.
- Prepared best practices for application teams running various middleware products and provided value by creating scripts and methodologies that would automate and help better maintain systems.
- Provided 24x7 on call production support.
Environment: Weblogic server 7.x/8.x, AIX 5.x, Suse Linux, JDBC, JMS, JNDI, SNMP, JVM, SUN ONE and Apache web server 2.0, Oracle 9i, scripting