weblogic admin

Cell: 312-***-**** REVANTH

E-mail:********@*****.***

Summary

Around 7 years of IT industry experience in integration & administration of middleware application servers on different platforms

Extensively administered BEA WebLogic, Apache, Tomcat,and iPlanet servers for server Configuration, Deployment of applications, Performance tuning including Troubleshooting and maintenance.

Extensive experience in configuring WebLogic Clusters (Horizontal and Vertical) for Load-balancing and Fail-over solutions.

Expertise in SDLC (Software Development Life Cycle) – Analysis, Design, Development and Testing.

Installed, Configured Clusters in WebLogic 8.x/9.x/10.x/11g/12c environment.

Experience with SESSION STATE REPLICATION across clusters in various environments.

Configured proxy and reverse proxy plugin for Apache with WebLogic.

Configured and administered JDBC, JMS, JTA, JNDI and Node Manager to administer the Managed Servers in WebLogic Application Server 8.x/9.x/10.x/11g/12c

Used Optimizeit to isolate and resolve performance hazards in JDBC, JMS, JNDI, JSP and EJB performance.

Configured web servers like Apache, Iplanet, Sun ONE and integrated Installed them with WebLogic.

Administered Apache HTTP 2.0 Web Server, iPlanet, Tomcat, Microsoft IIS Web Server Web Server.

Installed, configured and managed JBoss application server.

Developed Cron jobs for scheduled tasks like Clearing logs and other maintenance jobs.

Implemented standard backup procedures for both application Database and WebLogic.

Workload management, creation and maintenance of Domains, Nodes and Managed Servers instances in a BEA WebLogic environment.

Vast experience in deploying applications (JAR, WAR, RAR and EAR) and related troubleshooting in clustered environment using Admin console and WLST scripts.

Experience in developing and using ANT and Jython scripts to monitor WebLogic tasks.

Experience in Web Application development using J2EE and Java related technologies. Managed and monitored JVM performance tuning by adjusting WLS Heap size.

Deployed applications in multiple WebLogic Servers and maintained Load Balancing, High Availability, Scalability and Fail over functionality.

Proficient knowledge in Configuring and Clustering JDBC Connection Pools and JMS Connection factory environment.

Implemented security and configuration of LDAP, Sun ONE Directory Server and replications for MS Active Directory Server.

Used Wily Introscope App dynamics, HP OpenView and BMC PATROL as monitoring tools.

Worked on F5 Load Balancer to provide scalability and reliability to Application Servers.

Supported IBM MQ Series.

knowledge of Unix Shell Programming and familiar with Auto Deployment Process besides writing automated scripts.

Configure Extensive experience in configuring and managing secured environments using SSL and Digital Certificates.

Installed and Configured SiteMinder with WebLogic server.

Installed and configured BEA Tuxedo .

Provided 24/7 on-call support for production.

Extensive hands-on experience with WebLogic Console and Troubleshooting by using Thread Dumps, Heap Dumps for WebLogic server issues.

Sound knowledge of networking, FTP, SSH, TCP/IP, Ethernet, DNS, DHCP.

Self-starter, Fast learner and a Team player with strong communication and interpersonal skills.

Educational Qualification

Master’s Degree in Computer Technology, Eastern Illinois University, Charleston, IL, USA

Technical Expertise

Platforms: UNIX, Linux, Solaris, Windows NT/2000/Vista/XP/7

Web Technologies: JSP, J2EE, JDBC, EJB, JMX, Servlets, JNDI, JMS .

Application/Web Servers: BEA WebLogic Server 8.x/9.x/10.x/11g/12c, Apache WebServer 2.0/2.x, Apache Tomcat 5.x/6.0, Sun ONE Web Server 5.x/6.0, JBoss 5.1,7.1 IIS Web Server 4.0/5.0, iPlanet

Languages: Java, C, HTML, CSS, XML

Database: Oracle 8i/9i/10g/11g, SQL Server 2005/2008, DB2, Oracle RAC

Tools: Samurai, Wily Introscope, CA Netegrity SiteMinder, HP

OpenView, BMC Patrol, App Dynamics.

Scripting Languages: WLST and Shell scripting,Perl, ANT, python.

Markup Languages: HTML, XML, DHTML

Professional Experience

Role:Weblogic/Middleware Engineer

Client: Department of Veterans Affairs – Austin, Texas

Period: Nov 2011 Till date

Responsibilities:

I was part of Administering and configuring the Project which provides loans to veterans using various lenders.

Administration of Weblogic server, weblogic portal architecture and involving in installation, configuration, Tuning and deploying applications on weblogic server and portal Versions10.0.2, 10.3.2, 10.3.6, and 12c.

Worked on Weblogic upgrade from 10.0.2 and 10.3.6 to 12c

Applied Oracle critical patch updates using OPatch

Involved in Java upgrades to the latest version

Working on authentication processes, certificate creation, storage and handling, keystores and customization of security providers.

Documenting, diagnosing and correcting problems that occur within installed weblogic applications.

As a part of Project worked with Websphere team on integrating the weblogic.

Responding to callback and serve as the initial point of contact for system failures and ensure and coordinate the resolution and correction of production failures.

Developing scripts in WLST, and shell scripting to automate and monitor weblogic routine tasks.

Configuring weblogic servers in cluster solution for high availability, Load balancing and fail over support.

Configure, Administer and use wily Introscope J2ee performance monitoring.

Configured Siteminder 12.x version.

Documenting weblogic best practices and operational steps necessary to perform the assigned administer duties.

Installed and deployed applications on Jboss Application server.

Administered the jboss server along with configuring the jdbc on the Jboss servers.

Supporting other application infrastructure maintenance, configuration and troubleshooting needs as required including java based messaging services.

Create, update and resolve ticket, documenting system outages in any of the above environments.

Provide regular status updates to management on assigned tasks and projects.

Environment: Weblogic 10.0.2, 10.3.2 portal, 10.3.6 and 12c, jdk 1.7.x, jdk1.6.x, Apache webserver, RHEL, F5 Loadbalancer, solaris 10, webservices, JDBC, wily Introscope, Appdynamics, tuxedo, siteminder. Jboss AS 7.

Role: System Integration Engineer

Sabre Airline Solutions-- Dallas,Texas

Period: May’11 Nov’11

Responsibilities:

Performed WebLogic Server administration tasks such as Installation, Configuration, Monitoring and Performance Tuning.

The project involved 40+ clusters, 82 applications with about 150 servers deployed on separate boxes.

Installed, configured and managed Apache HTTP along with Weblogic

Deployed various WAR, JAR and EAR applications in Production and non-Production Environments.

Configured and administered JDBC Connection Pools/ Multi Pools/ Data Sources on Weblogic Server 9.2.

Created Managed Servers and Node Manager in Production Servers and test servers.

IBM MQ middleware environment development and administration support.

Performance tuned JVM heap size, garbage collections, Java stack, Native thread and production performance of WebLogic.

Integrated JMS with IBM MQ 5.x series

Created Work Managers for the specific applications based on their priority.

Configured F5 Load Balancer with Sun ONE Server.

Installed and upgrade tuxedo 9.1 to 10.0

Troubleshooting carried out on weblogic Application server connection pools with oracle 9i and Oracle 10g.

Worked on identity management tools such as SUN LDAP directory server and SUN Identity Manager.

Involved with the developers in trouble shooting and fixing day-to-day problems of the applications in Production on 24/7 schedule.

Tuned the TCP-related parameters in Operating System Level to improve system performance and reduce dropped connections.

Tuned Hotspot JVM Heap Size by adjusting the PermSize, Survivor Ratio, Min, Max, Nursery and Tenured Spaces.

Fine Tuned the JDBC Connection Pools Initial and Maximum Capacity to the same value in production systems to avoid creating new connections on the fly during load spikes.

Monitoring error logs and fixing problems on WebLogic environment.

Configured and set up Secure Sockets Layers (SSL) for data encryption and client authentication.

Involved in configuration management, software deployment, change management, performance monitoring and application maintenance.

Installed Wily Introscope Agents for different domains.

Used Wily Introscope, HP OpenView, BMC PATROL to monitor applications.

Used concepts of networking, FTP, SSH, TCP/IP, Ethernet, DNS, DHCP.

Troubleshooting issues that arise during testing or deployment process.

Troubleshooting carried out by using Thread Dump, Heap Dump and Garbage collection analysis for WebLogic Server issues.

Resolved Application Deadlock issues.

Troubleshooting carried out for server hangup.

Environment : Compaq, Dell, WebLogic Server 9.2/10.0, Oracle SOA, OEM Tuxedo 9.1/10.0 Wily Introscope 7.x, Apache, iPlanet, Sun ONE 5.x, IBM MQ Series 5.x, J2EE, Web Services, LDAP, EJB, JDBC, XML, Red Hat Linux, Solaris 10, SQL Server, ANT.

Role: Jboss/Middleware Engineer

British Petroleum -- Warrenville, IL

Period: Jan ’10 Apr ‘11

Responsibilities:

Deployed various EAR, WAR, JAR applications in different environments DEV, TESTING, UAT and PRODUCTION servers.

Installed, configured and managed JBoss, Apache HTTP, IIS webserver server along with WebLogic.

Configured JDBC connections on Jboss server and also deployed various applications.

Involved in complete SDLC of Jboss application.

Recreated the Weblogic domain as part of the issue resolution in the Testing and UAT environments.

Configured and administered DATA SOURCES and MULTI DATA SOURCES along with the connection pools

Configured weblogic JMS server as a foreign server.

Worked on the Tibco EMS(ENTERPRISE MESSAGING SERVICES) which is used for integrating legacy systems communication with WEBLOGIC servers.

Carried out Migration from Weblogic 8.1 to 9.2

Performance tuned Admin server heap size, Garbage collection on Jboss.

Configured the services as a cluster resource.

Involved in various Data cut implementations in Testing and production environments.

I have configured the LDAP users and assigned to the roles and responsibilities.

I have created a New users and granted permissions through Application front end.

Created many RFC’s (REQUEST FOR CHANGE) for the changes that are approved and had to be implemented into the UAT and PRODUCTION environments.

I have done the entire APPS PROVING of all the application message flow which is part of end to end testing to ensure the connectivity of the weblogic server with legacy.

Developed Scripts for deploying applications in different environments using weblogic.Deployer utility.

Used Optimizeit to isolate and resolve performance hazards in JDBC, JMS, JNDI, JSP and EJB performance.

Used Perfmon and Wily Introscope, to monitor the performance of the applications Involved in trouble shooting various issues in the Production Environment 24/7

Installed weblogic Admin server as a windows service.

Suggested the DBA team to increase the MEMORY of the DATABASE for the better performance of the application as a part of performance tuning.

Troubleshooting in clustered environment using Admin console, WLST, ANT and Jython scripts.

I have also resolved some of the critical application slow down issues due to the License server manager.

Identified and troubleshooted application Deadlock issues.

Run various performance counters as per the request of the Testing team for the application performance analysis.

Environment : WebLogic Server 8.1/9.2, Wily Introscope 7.x, Apache,, Jboss 5.1, J2EE, Web Services, IIS, LDAP, EJB, JDBC,JMS, TIBCO EMS, XML, Windows XP, Solaris 10, SQL Server.

Role: System/Web Administrator

Abbott Laboratories, Chicago, IL

Period: Feb '09 - Dec '09

Responsibilities:

Installed and Configured SiteMinder with WebLogic server 9.2.

Installed and configured BEA tuxedo 9.1.

IBM MQ middleware environment development and administration support.

Installed and Configured Apache HTTP Server 2.0 to work with WebLogic Server 9.2

Installed Apache Tomcat and configured it.

Configured and administered JMS on WebLogic Server 9.2.

Deployment and Troubleshooting of JAR, WAR and EAR applications in Clustered environment with WebLogic.

Configured and administered JDBC Connection Pools/Data Sources/Multi Pools on WebLogic Server 9.2.

Installed and Configured VMware for WebLogic installation.

Configured and setup Secure Sockets Layers (SSL) for data encryption and client authentication.

Setup WebLogic domain with a single server instance for developers on their windows machines.

Performance Tuning using Wily Introscope in WebLogic environment.

Worked with Netegrity CA SiteMinder for enabling SSO in UNIX and Windows environments.

Involved in the deployment of applications in WebLogic 10 in Test Environment.

Developed a sound understanding of networking, FTP, SSH, TCP/IP, Ethernet, DNS, and DHCP.

Provided active support for Load/Stress Testing, Troubleshooting and Performance tuning.

24/7 On-call support for Production, non-production environments which included test, staging training and break fix environments.

Resolved issues of memory leakage.

Troubleshooting carried out for High CPU usage.

Environment : Sun, Compaq, Dell, WebLogic Server 9.2 x, Sun ONE 5.x,BEA Tuxedo 9.1 SiteMinder, JDK 1.5, J2EE, JRockit, JSP, Servlets, EJB, LDAP, JDBC, XML, Oracle9i, Windows, Linux

Role: Java Developer

Client: Bharti Airtel, INDIA

Period: Jan '07 - Jun '07

Responsibilities:

Worked on development by writing Java Scripts, JSPs and involved in functionality testing and validating Java scripts

Installed and configured Weblogic server 8.x

Worked on Deploying the applications and Administering it.

Configured JDBC and JNDI in weblogic

Involved in coding and testing the application.

Environment: Java, JSP, Java Script, HTML, WebLogic Application Server, JDBC, JNDI, XML, SQL, Apache, Tomcat, Windows NT and UNIX.

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