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Weblogic Administrator Resume

Mount Laurel, NJ

SUMMARY

  • 7+ years of total IT experience with strong experience in Oracle WebLogic Administration including Domain creations, Installation, Up - gradations, Patching, and Production support on full lifecycle development of Client/Server Architecture.
  • Expertise in various WebLogic concepts like Domain Configuration, Clustering, Patch management, Security, Performance Tuning, Log monitoring, Node Manager, JDBC, JMS.
  • Experienced in configuration, remote managed server starts and stop
  • Experienced in Investigating and resolving performance issues by taking thread dump, GC values, and heap dump and analyzing this dump with the development group.
  • Experience in implementing Fail-Over, Fail-Back and Backup Strategies for WebLogic
  • Experience in SDLC and extensively worked on multi-tier Client-Server Oracle based on Web Applications.
  • Experience in installation and administration of WebLogic Application server Base/Network Deployment, SOA Server on various operating systems like RedHat, Linux.
  • Experienced in environment configuration using clusters for a fault-tolerant, scalable, and highly available WebLogic environment
  • Configuration of Application Servers, Clusters, Web Servers, JMS, WebLogic Variables, JDBC provider, Data Sources, node manager, security realm, and SSL.
  • Created CSR, CRT, and JKS files using open SSL and key store tools.
  • Experience working on J2EE Middleware including Administration, configuration, Management, Deployment, Testing Support, and Production support.
  • Experienced in troubleshooting J2EE applications and SOA composites on WebLogic/SOA/ADF servers across development, Integration, Preproduction and production environments.
  • Automated several jobs in order to reduce the manual effort and time.
  • Areas of expertise are Retail, Education, and Financial domains.
  • Good at troubleshooting using Traces, Logs, Log/ Heap /Dump Analyzer
  • Excellent team player, self-motivated, quick learner with trouble-shooting capabilities.

TECHNICAL SKILLS

Application ServerOracle Suite: Weblogic10g/11g/12c, OID 10g, SOA11g/10g, ESB, EM 12c

Technologies: JDBC, JNDI, WSDL

RDBMS Tools: Oracle 9i/10g/11g, DBA

OS: UNIX, Linux, Sun Solaris 9/10, Windows P/2003/Vista/2008 WebLogic 11g/ 12c, Oracle AS 10g/11g, WebSphere 6.0, Webcenter, Forms/Reports Server (6i, 9i, 10g, 11g), EGATE, BI Publisher, OBIEE (10.1.3.4, 10.1.3.4.1 )

Web Server: iPlanet, Apache Tomcat 7

PROFESSIONAL EXPERIENCE

Confidential, Mount Laurel, NJ

WebLogic Administrator

Responsibilities:

  • Configure JNDI server as repository for JDBC data source, EJB Home stubs, JMS connection factories, queues and topics.
  • Requirements gathering from developers, coordinating with DBAs for database issues and performance settings, working closely with LAN/ Storage and network team for load balancer setup/ storage and server requirements/ DNS setup.
  • Administration, configuration, Management, Deployment, Testing Support, and Production support using J2EE Middleware.
  • Investigated and Maintained performance improvement of J2EE applications effectively.
  • Supported 24/7 production and non-production environment, GO-LIVE activities, and enhancement releases.
  • Regular Logs and Diagnostics analysis.
  • Installed different versions of WebLogic in a clustered environment as well as customized JAVA Platforms for automation and user friendly purposes.
  • Configured data sources, connection pool, thread, JMS servers, node manager.
  • Installed iPlanet and integrated with SiteMinder component for user authorization and authentication.
  • Installed, configured and maintained iPlanet webserver on Solaris 9.
  • Deployed and updated Enterprise Applications on Development, Integration, QA, UAT
  • Day to day health-check and monitoring of overall system using SiteScope.
  • Daily monitoring of disk usage, CPU utilization using UNIX commands.
  • Monitor logs, configure cron jobs, verify system logs and make sure all softwares are working without issues.
  • Monitored and Managed JVM performance tuning by adjusting the JVM Heap size and GC parameters by monitoring physical memory.
  • Ensured that all documentation necessary for the support of related components is up to date and is accessible to all who may require it.

Confidential, Buffalo NY

WebLogic Administrator

Responsibilities:

  • Perform Day to day activities to maintain AT&T mission-critical applications hosted on middleware products like Oracle WebLogic 11g/12c, JBoss EAP6x and Apache Tomcat 7 on both QA, Stage and production servers.
  • Setting up Web server to Application server integration and administration of webservers Apache HTTP server, Oracle HTTP server, IPlanet Web servers on Unix/Linux Platform.
  • Developing UNIX shell scripts to automate the production monitoring jobs and client requirements.
  • Configuring and managing WebLogic resources like domains creation, admin & managed servers, Cluster, JDBC datasource, JMS, Machines, Node Manager, Defining User/Group/Roles/Policies, LDAP and SSL.
  • Deployment of JAR, WAR and EAR files in domain and clustered environments of WebLogic server and troubleshooting issues during deployments.
  • Experience in deploying EJB applications and web applications on WebLogic servers.
  • Generating thread and heap dumps during server crash, server hang situation and participate in dump analysis.
  • Performance Tuning, monitoring, profiling of applications and implementing compliance requirements in application servers and web servers as per security requirements.
  • Apply product patch using Opatch & BSU utility in WebLogic and WebLogic upgrade and migration.
  • Work with Load balancer team (F5, Brocade, and CISCO ACE/CSM) to setup Load balancer to webserver/application server’s connectivity.
  • Set up monitoring and alerting tools and configuration for production systems.
  • Proactive monitoring the application health from WebLogic Console and tools like BMC Patrol, Wily Introscope, Splunk, Tealeaf, Bluestrip and take corrective action during outage.
  • Configure JBoss installation, Domain creation in standalone mode and Domain mode, Application deployment in standalone and Domain mode.
  • Data Source creation in JBoss EAP.
  • Installation and administration of JBOSS EAP 6.x on various Operating Systems.
  • Setting up cluster Environment in JOBSS EAP and troubleshooting of issue in JBOSS.
  • Develop the shell scripts for server start/stop, status reporting, monitoring the applications to improve the support activities, and automate the manual tasks.
  • Involved in analyzing the parameters of garbage collection for performance tuning and troubleshooting JVM parameters.
  • Monitor the applications in a production environment, batch jobs, and provide real-time support for analyzing and troubleshooting issues.
  • Change Management activities and 24x7 operational support.
  • Outage/Incident Management activities.
  • Ability to work in tighter schedules and proficient in meeting deadlines.
  • Onshore/Offshore coordination and providing status update to leadership for all infra related activities and keeping track of all issues in issue tracker and bring it to closure.
  • Participate in ticket solving, interacting with end users, clarifying ticket description and assisting end users to perform their work for the entire application.
  • Understand the domain and the business process flow for the solution proposed for tickets.
  • Validate the changes implemented in production and ensure the application works as expected.
  • Prevent potential crisis by resolving critical issues quickly to reduce business impact to the customer and giving time estimates for resolution of defects.
  • Provide continuous production improvement by monitoring the production System and Root Cause Analysis of all the Production issues to prevent Potential Crisis.
  • Participate in Impact Assessment reviews and solution design meeting as part of Solution architecture team for upcoming releases.
  • Work closely with Storage, SA and network team to facilitate the requirements for servers.

Confidential, Maryland

Jr. WebLogic Administrator

Responsibilities:

  • Administered WebLogic server in production environments using command line and GUI.
  • Created WebLogic Cluster for various application
  • Responsible for creation of various Single Instance and Clustered WebLogic Applications
  • Configuring the JDBC, JMS and deploying the application
  • Review log files for troubleshooting application server and webserver
  • Trouble shooting both the server and application related issues.
  • Involved in performance tuning and memory management analysis related activities.
  • Create Connection Pool and Data Source for connecting the Oracle Database.
  • Create the virtual hosts in Apache Webserver and Web Logic
  • Upgraded from WebLogic 10.3.4 to WebLogic 11g
  • Troubleshoot WebLogic Server
  • Created JMS topics and queues
  • Involved in Load Balancing and performance tuning and monitoring using monitoring tool for various projects.
  • Good understanding of Oracle HTTP Server 11g, Linux
  • Administration of vertical clusters, database in Oracle Weblogic 10.3
  • Handling SSL certificates like create, import, export the certificates in java keystores and renewal and signing.
  • Installed, configured, administered Apache Web Server
  • Configured Jenkins jobs for continuous integration
  • Configuring Jenkins jobs for continuous integration
  • Involved in performance tuning by analyzing Thread dump
  • Involved in server’s health monitoring setup
  • Setup OpenShift server for Microservices development

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