SUMMARY

• Having 6 plus years of IT experience, including 4 years of extensive experience in Weblogic Server 6.0/7.0/8.1/9. x/10, WAS 5.x/6.x adept in all facets of administration, maintenance, deployment and management of enterprise applications including Installation and Configuration and also 2 year of experience in application development using JAVA & J2EE.
• Expertise in writing WLST scripts to automate all kinds of configuration changes in weblogic server through python language in large environments.
• Expertise in SDLC (Software Development Life Cycle) - Analysis, Design, Development and Testing. Ability to deliver quality work under pressure and aptitude to meet deadlines.
• Expertise in Tuning JVM’s, JDBC resources through HEAP analysis and thread dumps.
• Experience with Administering of version control tools like CVS, SVN, Perforce etc, creating branches, tags for daily builds and merging code base after releases.
• Very strong in script using shell, ANT, python languages.
• Experience with Installation, configuration of Sun ONE, Apache HTTP Web Servers on various operating systems like Sun Solaris, RedHat Linux, HP-UX and Integration of the same with the WebLogic.
• Expertise in performance tuning of a Weblogic server by fetching live data (MBean Data) for performance tuning.
• Experience with patching Weblogic Server, JVM’s in Dev/QA/Production.
• Experience with JVM tunings, JDBC tuning and Heap Dump Analysis.
• Extensive experience in production environments, performance tuning, tweaking the JVM parameter, Threads, size of the connection pools etc.
• Solid experience in developing and deploying the applications on multiple Weblogic Servers and maintaining Load balancing and High availability in inter and intra cluster environments.
• Extensive experience in setting up multiple Domains, including Machines, Managed servers, Node managers and Cluster environments.
• Experience in maintaining Load balancing and High availability using F5 Load Balancer.
• Experience with monitoring tools like Wiley Introscope Enterprise Manager, Jconsole.
• Knowledge of different Databases like Oracle, DB2, Sybase and SQL Server, besides integrating them with applications
• Used WebLogic Admin utilities and JMX (Java) for monitoring the health of servers, connection pools and Data sources.
• Managed and monitored JVM (SUN, JRockit) performance tuning by adjusting WLS Heap size and GC parameters for monitoring the heap and physical memory.
• Experience with build automation using ant and Hudson CI tool.
• Experience with administering tools like CVS, SVN and perforce.
• Experience in developing Ant scripts for daily deployments of the applications.
• Experience with Migrating WebLogic Server 8.1 to 9.x/10.x
• Experience with SSL Certificate key pair encryption and generation using keytool and openssl.
• Experience with handling 24/7 on-call support for production Tier-1 applications, strong team player, good analytical skills.

TECHNICAL SKILLS

Languages: Java, J2EE (EJB, JSP, Servlets, JDBC, JMS, Spring, Struts, Hibernate), XML, XSLT, UNIX Shell Scripting, JavaScript, HTML, PL/SQL, PERL

Packages: J2EE, Java1.4/1.5

Databases: Sybase, MS SQL and Oracle8/9i/10g

Tools: ANT, Perforce, CVS, SVN, WLST, Remedy.

Web Servers: Sun Web server 6.0, Apache 2.0

Application Servers: BEA WebLogic 9.2/10

IDEs & Environments: WebLogic workshop, Eclipse, MyEclipse, NetBeans

Operating Systems: Windows 2000/NT/XP/, UNIX, Linux, Solaris 10

PROFESSIONAL EXPERIENCE

Web & App Server Support Engineer

Confidential, Dallas

Responsibilities:

• Installed, configured and administered Bea WebLogic Server 10.x in various environments.
• Installed weblogic domains using an automated utility “VInstaller” from a central server.
• Configured various weblogic resources like JMS, JDBC Connection pools using a wlst/wlconfig based automated utility “VDeployer” in higher environments and worked with developments team to configure the resource manually in lower environments
• Provided ability for application to customize log4j configuration by using custom scripts to turning debug ON/OFF.
• Installed Weblogic Server 10.x in Dev/QA/Prod environments, created domains in all the environments.
• Deployed applications in formats of WAR, JAR, and EAR in Weblogic 10.x
• Worked closely with the SA architect and WebLogic architect to validate WebLogic 10 build in a VMware, Red hat Linux 5.0 environment
• Migrating the applications from WLS 9.2 to Weblogic 10.x
• Worked closely with the development team to determine how the application will utilize the application services (JDBC pools, JMS, Security). Responsible for understanding application environment and changes in order to tune WebLogic parameters in support of application stability.
• Worked with monitoring team to ensure that proper metrics are monitored and alerted. Analyze metric data to ensure capacity planning is properly managed
• Configured Weblogic Console extension for the Environments.
• Tuning the Weblogic Server parameters by running load test on the server using Jrockit Mission control tool.
• Configured and administered Weblogic server with Oracle10g database.
• Installed and configured Apache Web server in various environments.
• Configured SNMP agents with HP OPENVIEW for all the domains in production to collect metric data of the servers.
• Deployed the applications on multiple Weblogic Server and maintained Load balancing, high availability and Fail over functionality.
• Monitored the environments using WLST scripts for fail over of servers, health checks, parameter monitoring.
• Written scripts to build the source code using Ant, Maven scripting tools.
• Configured Node manager to administer the Managed servers, start & stop Managed Servers.
• Configured and administered Connection pools for JDBC connections.
• Hosted application using Apache Server by configuring Virtual Host feature, secured the sites by configuring SSL communication between Apache and Weblogic Server..
• Configured LDAP using Netscape directory Server for user authentication.
• Developed WLST scripts extensively to create and manage Weblogic domains.
• Tweaking JVM parameters in production environment by collecting metric data using verbosegc parameters.
• Created crone jobs for metric collection and booting of the servers on machine reboots.
• Developed ANT build scripts, UNIX shell scripts and automated deployment process.
• Trouble shooting of weblogic server issues in production.
• Configure JNDI server as repository for EJB Home stubs, JDBC data source, JMS connection factories, queues and topics.
• Supported application teams in fixing the performance issues in production environments.
• Involved in capacity planning of servers in production environment through load testing.

Environment: WebLogic Server 10 .X, Ant 1.7, WLST, J2EE, JSP, Servlets, EJB, LDAP, JDBC, XML, Oracle 10g, Solaris, Red Hat Linux.

Weblogic Integration Support

Confidential, PA

Responsibilities:

• BEA WebLogic 8.1 sp6 software installation and patch maintenance on HP-UX platform.
• Deployed the applications (WAR, JAR, and EAR) on multiple clustered WebLogic Servers.
• Installed and configured Apache Web Server with Bea WebLogic Server 8.1 sp6
• Configured Wily Introscope Agents for different domains.
• Monitored BEA WebLogic Server using tools such as Simple Network Management Protocol.
• Created Crontab scripts for timely running jobs
• Provided support for teams in activities such as load testing, troubleshooting, and performance tuning.
• Involved in code migration from development to production environment.
• Coordinate offshore and onshore teams regarding requirements gathering and implementations.
• Configured JNDI server as repository for EJB Home stubs, JDBC data source, JMS connection factories, queues and topics.
• Installed version management software like SVN and CVS on Redhat Linux
• Configured users and user privileges for different repositories in SVN, CVS.
• Maintain version of products code through branching and tagging.
• Worked closely with Dev teams in configuring automation build using Hudson and Maven tools
• Automated build process using Maven tool.
• Support multiple product release by creating different branches for source code in SVN and CVS
• Automate build process for Sonic, Actional products using Maven and shell scripts
• Created ACL to restrict user level access to code repositories/branches.
• Migrate source code from CVS to SVN repository
• Worked as SVN and CVS administrator for source code repositories for different products
• Set up build environments on solaris for different release for Sonic and Actional products
• Configured proxy plug-in for Weblogic under Sun One/IPlanet and Apache web servers.
• Installed SSL certificates in production environment by generating the keystores.
• Involved in the Capacity planning for the application in production environment. Gathered performance metrics with varied number of clustered managed instances.
• Involved in configuring SSL and generating certificates using java keystore.
• Implemented standard backup procedures for both application DB and WebLogic 8.1 backup of configuration files.
• Coordinated with the Application Support team to identify and correct issues and bugs relating to WebLogic.
• Created read-only users for weblogic console in production environments using weblogic Security Realms.
• Configure LDAP using Netscape directory Server for user authentication.
• Supported testing efforts, implementations and monitoring of batch jobs.
• Developed ANT build scripts, UNIX shell scripts for auto deployment process.
• Provided 24/7 production support.

Environment: Weblogic 8.1 SP6/9.2, J2EE, JDK1.4, Linux, HP-UX, SSL, J2EE, ANT, Apache Web Server, SVN, CVS.

Weblogic Administrator

Confidential

Responsibilities:

• BEA WebLogic 8.1 software installation and patch maintenance on UNIX platform.
• Deployed the applications (WAR, JAR, and EAR) on multiple clustered WebLogic Servers.
• Installed and configured SUN ONE Web Server (iPlanet) with Bea WebLogic Server 8.1
• Monitored BEA WebLogic Server using tools such as Simple Network Management Protocol.
• Provided support for teams in load testing, troubleshooting, and performance tuning.
• Managing and monitoring the performance of JVM by adjusting Weblogic heap size and garbage collection parameters.
• Involved in code migration from development to production environment.
• Developed Startup, Shutdown and bounce the weblogic server scripts.
• Involved in configuring SSL and creating certificates.
• Maintained consistent Weblogic software components across environments by grouping necessary components like JDK, Weblogic Binaries and required tools.
• Coordinated production outages and facilitated resolution by working with several teams like UNIX, Network, Database, Infrastructure and Application teams
• Implemented standard backup procedures for both application DB and WebLogic 8.1 backup of configuration files.
• Configured proxy plug-in for Weblogic under Sun One/IPlanet and Apache web servers. Fine tuned plug-in parameters like WLIOTimeoutSecs.
• Coordinated with the Application Support team to identify and correct issues and bugs relating to WebLogic.
• Supported testing efforts, implementations and monitoring of batch jobs.
• Worked with the production support team to define deployment process.

Environment: WebLogic Server 7.0/8.1 sp4, LDAP, J2EE, JDK1.3/1.4, Linux, Windows 2000, Perforce, SQL, Oracle8i, JDBC, SNMP, JMX, Sun One.

Java/J2EE Developer

Confidential 

Responsibilities:

• Involved in requirement gathering.
• Prepared use cases based on initial requirements.
• Implemented MVC frame work by writing different configuration files.
• Developed Action Forms and Action Classes in Struts framework.
• Implemented different java design patterns like DAO, Singleton Pattern and MVC architectural design pattern for solving the architectural issues.
• Implemented Data base calls using hibernate technology.
• Developed data model with Tables, Views, and Indexes.
• Experience in Java / J2EE Design Patterns like Singleton, Business Delegate, Service locator, Session Facade, Factory Pattern, Abstract Factory Pattern, MVC-1, MVC-2, DAO and DTO design patterns
• Used JDBC and involved in writing stored procedure and PL/SQL for back end.
• Used Struts framework as controller part and developed business logics in model part using java.
• Applied different java design patterns to solve the problem.
• Designed front-end using JSP, DHTML, HTML, and Java Script.
• Experience in Designing and developing the Business Delegates to reduce coupling between the web tier and EJB tier, developed the container managed Stateless session EJBs to acts as Session Facades, Implemented Value Object pattern and DAO pattern.
• Used Apache Log4j to archive log files as per formatting and archiving (both size and number of versions) requirements.
• Used Remedy Bug tracking tool for tracking bugs and solving them in time.
• Implemented Object Relation Mapping using Hibernate.
• Developed stored procedures, functions and triggers using PL/SQL in Oracle 9i Environment.
• Involved in Technical Design Discussions.
• Developed java web pages for front end views using MVC 2.

Environment: JAVA, J2EE, XML, DOM, SAX, EJB, Servlets, Struts, Design Patterns, Log4J, Ant, JBoss 4, Sybase, UNIX, Sun Solaris.