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Middleware Admin. Resume

Miami, FL

SUMMARY:

  • 14+ years’ Experience in Web logic, UNIX, Linux, Windows, IIS, Apache, Java and Oracle. Experience includes Oracle Application Servers, Tomcat 6/7.x and Sun One.
  • Experience in SOA, WebLogic installation Configuration and fine - tuning using command line as well as automated tools.
  • Knowledge of AWS, EC2 instance types, storage devices.
  • Performed application deployments (WAR/EAR) in Weblogic using Stage/No Stage and have experience in troubleshooting with deployment issues.
  • Worked with BEA Weblogic Technical Support in resolving the critical issues by analyzing the respective thread dumps, server hangs server crash, logs and config files and did a follow up on the open cases.
  • Extensive Experience in Weblogic Administration, monitoring and troubleshooting.
  • Setting up the cluster environment for WebLogic Server integrated with multiple workflows.
  • Extensive experience in High availability and Fail over functionality using jdbc and in memory persistence.
  • Configured Clustering EJB objects, JDBC connections and JMS connection factories.
  • Extensive experience in website set up in IIS and Apache 1.x and 2.x.
  • Ability to analyze the results of monitoring systems to identify problem areas.
  • Experience in finding the Memory Leaks and adjusting the JVM Heap Sizes and GC Parameters, configured and worked with the Samurai Tool to detect memory leaks.
  • Troubleshooting applications, servers, clusters and OS.
  • Worked extensively on Weblogic Server administration, Workshop 8.x 9.x, versions.
  • Discover and help resolve issues with all layers of the Weblogic platform stack, including WLS, Portal, Weblogic Integration, and Weblogic Workshop.
  • Experience includes Model View Frameworks like Hibernate, MVC and Spring framework.
  • Clustering, Jrockit, Deployment, performance, Licensing and on J2EE specific technologies like JDBC, EJB, Servlets, JSP.
  • One-way SSL and 2-way SSL Configuration - Familiar with KeyStore and commands for the CRV, import, export, conversions etc and familiar with private key, intermediate certificate and root certificates. Also worked with application involving certificates and validating the certificate related issue, like making sure that rootca is present in the client jre trust store, mainly in web service clients and java clients.
  • User and group configuration at the embedded LDAP level as well as the external LDAP servers. Have configured external LDAP with Weblogic and familiar with LDAP browser.
  • Worked Extensively on Weblogic Product Provising i.e. Config Wizard GUI, Config Wizard Console, Config Wizard Silent, CW Extension GUI, CW Extension Console, TB Domain Template, TB Extension Template, Wiz Domains, Upgrade FW, Pack/unpack/NM.
  • License Provisioning
  • Shell scripting and Jython. Automation of processes using scripts.
  • WLST tool
  • Patch Management
  • Work with other Engineers and Developers to ensure that all aspects of the system have proper testing coverage and overall system reliability, performance, and quality.
  • Monitor test results and perform root-cause analysis of failures working closely with developers on test improvements, debug ability in both tests and product.
  • Interface with development team for the status of issue resolution, and with the Product Management team for critical outages
  • Worked closely with development and testing teams to implement fixes in Production under strict time constraints.
  • Opening cases with BEA and SUN and driving them to conclusion.
  • Involved in troubleshooting for production issues and escalating as per the requirement.
  • Strong Experience in Handling Code Releases.
  • Strong experience in configuration management and Release Management.
  • Knowledge of Oracle and PL/SQL.
  • Administration experience in Solaris.

TECHNICAL SKILLS:

Programming Languages: Java, C, C++, C#, shell scripting.

Middle Ware: EJB 2.0, RMI, JDBC 2.0

Web Technologies: HTML, Xml, Java Script, Servlets, and JSP

RDBMS: Oracle 8.0, SQL Server 7.0.

IDE: Workshop 8.1, 9.1

Enterprise Technologies: J2EE.

Application Servers: Web Logic 11g, 10.x, 9.1, 8.1, 7.0.

Web Servers: IIS, Apache, Iplanet, Tomcat 6.x/7.x

Multimedia tools: Flash5.0.

Operating Systems: Windows 98/ 2000, UNIX, Linux, Solaris.

PROFESSIONAL EXPERIENCE:

Confidential, Miami, FL

Middleware Admin.

Responsibilities:

  • Fusion Middleware Systems Engineer provides infrastructure solutions to Enterprise applications that include monitoring, supporting and troubleshooting the Application server and FMW components.
  • Installation configured and administration of Weblogic 11g/12C, Application servers for DEV, QA, Integration and PROD systems.
  • Deployed applications on multiple WebLogic Servers and maintained Load Balancing, High availability and fail over functionality.
  • Configured Secure Sockets Layers (SSL), client authentication and Two-Way SSL for Web logic 11g/12c using Keytool.
  • Message status stop /start of queues and channels on MQ server.
  • Informatica deployments of objects, increasing the cache, setting stop on errors.
  • Configured database connections pools in Informatica.
  • Involved with AWS teams for installation, configuration, monitoring, deployment services for cloud formation.
  • Power Center Repository Manager and Workflow Manager tools for deployment of work flows and changes required for Dev/Integration and Prod Env.
  • Trouble shooting of issues in workflows, getting session logs and escalating to the respective tracks.
  • Stop on Errors, DTM buffer size changes, converting the bin to txt for session logs as when the workflows are failed to the track teams.
  • Disabling the workflows, clearing locks on the Informatica server.
  • Creating users and groups in AD for Service Now requests.
  • Check out source code, workflows from GIT.
  • Worked on Control M for running the automated Jobs for the QA/Int/Prod env.
  • Worked on Dynatrace monitory tool to trouble shoot the performance issues in Production.
  • Trace the user activities using the visit or by pure paths.
  • Provide reports for the env by checking the health status in dynatrace.
  • Checking the status and adding conditions if there is any dependency for the ControlM Jobs to run.
  • Troubleshooting Production issues (P1/P2), worked on resolving Application Server hang issues and high memory and CPU issues in application Servers.
  • End to End infrastructure support to JAVA applications and platforms support for Middleware installation, Performance tuning.
  • Trouble-Shooting memory issues, Java Heap memory by monitoring garbage collection, Verbose GC, Trouble-Shooting of JVM out-of-memory issues, server crash, stuck threads on application servers.
  • Log files analysis such as WebLogic server, Manager Server Logs, Apache logs, thread dumps and verbose logs.
  • GC logs for troubleshooting and problem determination to resolve issues.
  • Configured Clustering, JDBC connections and JMS connection factories.
  • Worked on ServiceNow ticketing tool to create Change requests, Work requests and Problem tickets.
  • Coordination between Application Support Team, Testing team, Database Team for successful application release in Production Live environment.
  • Mid-day deployments scripts for deploying Weblogic applications.
  • Managed Active Directory, user creation, security groups, access rights, etc., which included providing access to various groups.
  • Prepare/Review and Monitor Status of servers on daily basis. Preparing RCA document for major incidents and provide solution to control reoccurring issues.
  • Handling the incidents and change requests raised by the application teams related to Middleware.
  • Provided 24/7 on-call supports on rotation basis for applications running in production on RedHat Linux, WebLogic and Oracle environment.

Sr. Web/App Middleware Administrator

Confidential, Washington, D.C

  • Infrastructure /Weblogic 11g, ESB /SOA Support for Release 2.
  • Team Member of Operations and Maintenance for R1 release and lower env.
  • Installation configuration, administration of Weblogic servers in Prod, PreProd, staging, UAT, QA, QATT and Dev env .
  • Performance tuning Weblogic, SOA and J2ee applications.
  • Manage and Monitor the health of WebLogic servers.
  • Developing Shell scripts, batch setup process & Trouble shooting env issues.
  • SSL configuration one-way and two-way setup.
  • Create Cluster Jdbc, grid and Jms configurations for weblogic.
  • Day to day deployments and support multiple environment.
  • Recommend best practices for weblogic configuration.
  • Analyze and trouble shoot, high CPU, Out of memory, Crash.
  • Work with various teams for application integration and configuration.
  • Provided production support for Applications deployed on WebLogic.
  • Worked closely with development, Test team to troubleshoot ongoing issues in the env.
  • Performance Tuning - Thread Dump Analysis, Core Dump Analysis when server crashed unevenly.
  • Tuning JVM, JDBC, Java Threads and EJB's.
  • Trouble shoots emerging application issues from Weblogic configuration code issues.
  • Providing support to developers and production env 24x7.
  • Creation of Clusters, Appserver clones and configuration of app server clones.
  • Install/Uninstall Application (ear, war, jar) and configure a 3-tier architecture for the application which will also involve configuring webserver to route requests to the appserver.
  • Creation of JDBC providers, data sources, configuring connection pool etc.
  • Creation of JMS MQ queue connection factory, queue destinations, listeners etc.

Middleware-Engineer

Confidential
  • Install and configure SOA 11g for Prod, DR, and Acpt env.
  • Involved in monitoring and tuning performance metrics like JVM, execute threads, JDBC connections.
  • Worked closely with development team to troubleshoot ongoing issues in applications.
  • Created scripts to deploy applications from command line
  • Pack/unpack/ for scaling of WebLogic managed servers.
  • Install/configure node manager.
  • Created JMS inbound/outbound connection pools.
  • Create distributed queues, topics, connection factories for the SOA cluster.
  • Providing support to developers and production env 24x7.
  • Install apache 2.2 in dev/test/prod env. created partitions and deployed composites.
  • Configured JMS adaptor, DB Adaptor, UMS for the SOA infra. configure JOC and coherence for the SOA domain.

Web/App Middleware Administrator

Confidential, Reston, VA

  • WebLogic 11g, Jboss 4.2, iPlanet7, Apache.
  • Installed configured WebLogic 1035 application server for dev, test, stage and Prod env.
  • Provided production support for Applications deployed on WebLogic and Tomcat 7.x containers.
  • Worked closely with development, Test team to troubleshoot ongoing issues in the env.
  • Performance Tuning - Thread Dump Analysis, Core Dump Analysis when server crashed unevenly.
  • Tuning JVM, JDBC, Java Threads and EJB's.
  • Trouble shoots emerging application issues from Weblogic/tomcat 7.x configuration code issues.
  • Providing support to developers and production env 24x7.
  • Installation and Configuration of JBOSS v5.1 EAP, v6.0.
  • Creation of Clusters, Appserver clones and configuration of app server clones.
  • Install/Uninstall Application (ear, war, jar) and configure a 3-tier architecture for the application which will also involve configuring webserver to route requests to the appserver.
  • Creation of JDBC providers, data sources, configuring connection pool etc.
  • Creation of JMS MQ queue connection factory, queue destinations, listeners etc.
  • Configuring JBOSS global security and enabling security between webserver and appserver.

Confidential, Santa Ana, CA

System Admin

  • Installed and configured weblogic 11g using graphical mode.
  • Installed and configured iplanet webservers for dev, Stress and PAT env.
  • Configured Jrockit Mission control in various Env.
  • Analyze memory leak patterns, monitoring CPU usage using Jrockit Mission Control.
  • JRA recording to analyze GC strategies for stress and Int env.
  • Deployed applications EAR, WAR, JAR Deployment for dev, test, and stress and PATenv.
  • Used config wizard and Domain builder extensively to create and manage WebLogic domains.
  • Installed and configured virtual iplanet servers with self-signed certificates.
  • Installed and configured OAM, web gates installation.
  • Configured and administered JDBC connections pools.
  • Trouble shoot issues for session replication in clustered env.
  • Analyzed thread dumps and dead locks for PAT env and recommended the changes to dev teams.
  • Supported WebLogic Server clustering, load balance, failover and performance tuning.
  • Performance tuning in the aspect of Database Connection Pooling. Built reports for tracking the Workflow.
  • Debugged of the application problems while developing and deploying the application.

Confidential, Sacramento, CA

Environment: Weblogic 11g, Oc4j, Tomcat, Jcaps 5.x, Knowledge Exchange 6.x, SOA Service Manager tool 5.2, Oracle Enterprise Manager 10g.

Apps Server Administrator

  • Installed configured Apache Tomcat application server 5.5 in a clustered environment.
  • Deployed B2B applications EAR, WAR, JAR Deployment for dev, test, and stage and Prod env.
  • Worked on Production deployments My CalPERS 13.0 including 2010 Tax Statement, & ACES 5.9 applications, & COMET/CDB defect fixes.
  • Provided production support for Applications deployed on Apache Tomcat containers.
  • Install configured, deployed applications on OC4j containers in dev, test, stage and Prod env.
  • Worked on Oracle Enterprise Manager 10g for start/stop, deploying applications i.e. pfrms applications code into the Oc4j containers.
  • Worked on security realms, create user ID’s /password for the users for various env.
  • Worked closely with development, Test team to troubleshoot ongoing issues in the env.
  • Worked with Oracle and Jcaps Support to resolve issues related to Configuration, logging and gathered best practices.
  • Worked with HP Site Scope team disable/enable alerts for production boxes during deployments.
  • Performance Tuning - Thread Dump Analysis, Core Dump Analysis when server crashed unevenly.
  • Install, Configured and validated JCAPs 5.x containers for dev/test /stage env.
  • Installed self signed certificates as Trusted Certificated for accessing Web services In SMT env.
  • Created user’s and assigned roles as SMT Architect / Functional Monitor /SOA Architect /SMT Service Provider /Test Monitor /SOA Tester.
  • Upgraded Knowledge Exchange 6.1.3 to 6.2.2 version on tomcat server in dev and test environment.
  • Documented the Knowledge Exchange 6.x upgrade process to minimize errors for a upgrade in Prod env.
  • POC for Installation and configuration of Weblogic 11g in Test env.
  • Installed Weblogic coherence and Weblogic operations control 10.3.3.0 version
  • Operation controls in Test env.
  • Provided checklist for Weblogic Installation and Configuration of Containers.
  • Upgraded Risk Radar Application in WebLogic env.
  • Upgraded Partner Manager Application in weblogic env.
  • Installed sun jdk 1.6 and Oracle jrockit 1.6.x.
  • Recommended best practices for Web logic Architecture design for simplifying Application ports.
  • Worked on HP Service Manager to upgrade web tier on Weblogic Test Env.

Confidential, Chicago, IL

Environment: Web logic 9.2, 8.x, Solaris 5.9, Apache, Oracle 10g, SiteScope, F5 load balancer

WebLogic Admin

  • Deployed the applications on multiple WebLogic Server and maintained Load balancing,
  • High availability and Fail over functionality.
  • Setting up the cluster environment for WebLogic Server integrated with multiple workflows.
  • Research and Troubleshooting of emerging application issues from WebLogic configuration to code issues.
  • Configure Node manager to administer the Managed servers.
  • Configure and administered Connection pools for JDBC connections.
  • Defined and configured HP Site Scope alerts for production boxes to address bottlenecks in various environments.
  • Monitored error logs, fixed problems and tuned parameters in WebLogic environment.
  • Involved in monitoring and tuning performance metrics like JVM, execute threads, JDBC connections.
  • Worked closely with development team to troubleshoot ongoing issues in applications.
  • Created scripts to deploy applications from command line
  • Installed and configured iPlanet web server
  • Unix Scripting

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