SUMMARY

• Over 8 years of strong experience in Infrastructure Integration & Middleware Installation, Configuration, Administration, Monitoring and Tuning of Websphere 6.X, 7.X, Weblogic 9.X, 10.X.
• Experienced in multi - tier and Client/server architectures. Worked extensively on a variety of Application servers, Web and Portal Servers, Databases, GUI front end &Backend, Work flow engines and internet applications using Java/J2EE.
• Experienced on deployment for various type of packages like WAR, JAR, EAR and J2EE applications on managed servers in clustered environments using console/auto deploying scripts in stag/non-stage/external stage for development/production environments
• Experienced on software development lifecycle through Design, Coding, SST/ST, UAT/QAT, Pre-Production and Live Production on Unix/Linux platform.
• Experienced in Installation, Configuration and Administration of JDBC data source, connection pools, JMS Modules such as Connection Factories, Queues, Topic Persistence stores.
• Developed WLST scripts for creating LDAP users, Monitoring JDBC resources, Starting Managed servers in MSI mode, deployment script, start/shutdown the Websphere/WebLogic servers.
• Configuring Wily Introscope to monitor the performance of WebLogic/Websphere Application Servers.
• Proficient in working in Sun Solaris, AIX, HP-UX, Linux, UNIX and Windows Environments.
• Experienced in Secure Socket Layer (SSL) and digital certificates creation and configuration.
• Experienced in installing, configuring and administering webserver servers like Oracle Iplanet 7.X, IBM HTTP Server and Apache TOMCAT 7.X
• Resolved complex issues related to subsystems such as Plug-ins, Security, JDBC, Clusters, EJB, Web Apps, JMS, Server and Domain Migrations and JDBC Drivers.
• Experienced in Performance Tuning TCP/IP, Java Stacks and Native Thread /JDBC/JTA/JVM Heap/GC.
• Experienced in Load Balancing, High availability and Fail over functionality on Cluster.
• Experienced in writing UNIX shell, Perl, Python, Jython, ant and PL/SQL scripting.

TECHNICAL SKILLS

Languages: C, C++, Java, XML, HTML

Databases: Oracle, MS SQL Server and Mysql

Operating System: Unix, Read Hat Linux, AIX, SunOS, HP-UX & Windows

Application Servers: Weblogic Server 9.X, 10.X, WebSphere v7

Web Servers: Oracle iplanet, IBM HTTP Server, Apache Tomcat 7.X

JVM: Oracle BEA Jrockit, IBM JDK, HP- JDK, Sun JDK.

Java/J2EE Technologies: Java, JDBC, JSP, Servlets, JNDI, Weblogic app Server, SSL, Web Services

Scripting: Unix Shell Scripting, Perl scripting,WLST,Phython,Jython,ANT

Secure Protocols: SSH,SSL,HTTPS,SCP,SFTP,WINSCP

Tools: Toad, Introscope Wily, HP QC, BMC Remedy, Webtrax

PROFESSIONAL EXPERIENCE

Confidential, Dallas TX

Senior Subject Matter Expert for WebLogic Admin

Responsibilities:

• Sole responsibility of installation, configuration, developing, administration/clustering and tuning of Websphere, Oracle WebLogic on UNIX, Linux environments
• Performed Horizontal and Vertical Cluster setup, Node Managers and Admin Servers
• Developed K-shell Script, Python,WLST and Perl Scripting for automation of daily tasks
• Configured SSL and generated X501 digital certificates, signed them from trusted authorities, configuring certificates for Weblogic application server and for clients
• Installation, configuration and administration of Web servers Apache Tomcat, Apache HTTP
• Performing Installation, Configuration and Administration of JDBC data source, connection pools, JMS Connection Factories, Queues, Persistence stores and other services like JTA, JNDI, Virtual Hosting and SNMP
• Solely responsible for all configuration management tasks for all the client environments through DEV,QAT,PLAB and PROD
• Extensive experience in troubleshooting memory management issues on application servers
• Proficient in performance tuning and solving problems using thread dump and heap dump analysis using jconsole,jvisualvm,jmap JDK utilities
• Trouble-shooting for different kinds of failures in Websphere, Weblogic Servers, immediate fixture of the issue and performing root cause analysis on them
• Training and mentoring junior administrators on middleware technologies
• Installed and configured new environments from scratch for new Apollo projects
• Creating standard documentation and uploading documents & maintaining it from SharePoint
• Join bridge/conference calls for any outages in application and join handover calls with onshore/offshore and near shore teams for sharing knowledge, transferring tasks.
• Major roles on Release/Deployment activities in weekend on Production environment
• Responsible for ECR/Hotfix deployment in Production environments on call week.
• Providing services on run-time environments on 24/7 rotation basis with team members.
• Kept researching on new middleware technologies and kept striving to enhance middleware infrastructure also provided high-level roadmap and hands-on experience standing up a Websphere, WebLogic environment
• Wrote UNIX Shell Scripts using commands like awk, sed, Bash, Perl,
• Performed troubleshooting of repeated Websphere, WebLogic failures and outages including out of memory, exceptions, lack of threads and connection
• Defined security and standards for middleware infrastructure

Confidential

Senior Subject Matter Expert for WebLogic Admin/Websphere Admin

Responsibilities:

• Performed installation and configuration of Websphere 6.X, 7.X, Oracle WebLogic Application Servers 9.x, 10.x, 11g on Unix/Linux instances and domain also did administration and clustering.
• Configured and administered JDBC Connection Pools/Multi Pools/Data Sources in Websphere 6.X, 7.X and Web Logic9.X,10.X
• Created and configured self-signed digital certificate using java utility keytool in Weblogic
• Developed the WLST scripts for packages JAR,EAR and WAR to deploy J2EE components and for gathering Weblogic performance statistics
• Developed numerous korn Shell scripts for the monitoring/code dropping/application sanity
• Worked extensively on deployment of new J2EE applications, creating clusters, managed servers, JMS queues, bridges & JDBC connections pools, managing JNDI, managing security, configuring and monitoring JMS in Weblogic server.
• Provided technical supports for non production and production applications
• Analyzed tuning recommendations for JVM, JMS, Threading, and load balancing algorithms.
• Documented failures & outages in Production and the measures taken to resolve them
• Work with the System administrators, Testers and DBA's for pre-installation planning (hardware configuration, memory, disk space, kernel parameters, network connectivity etc.)
• Setting the JVM parameters like max and min heap size,permsize,enable GC details/Debug in WebLogic startup scripts
• Performed installation, configuration and administration of Web servers such as Apache Tomcat 7.X/Apache HTTP 7.X
• Performed installation, configuration, administration & monitoring of Websphere V7
• Maintained Queues, Topics, in WebLogic JMS Server and MQ Series.
• Fixed defects, installed Patches/Hot fixes on Dev/ST/QA/PLAB and PROD environments
• Performed release activities in weekend on Production
• Developed automation process using K-shell for WLS Install, upgrade patches, deployment, monitor, tuning and configuration of Websphere/WebLogic application server in multi cluster server environment. Configured Node manager for administration of Managed servers.
• Designing and architecting Websphere, WebLogic environments for Oracle SOA suite and ADF
• Did full administration, management and monitoring Oracle WebLogic 11gR1 server and Oracle SOA suite 11gR1 and WebLogic scripting (WLST)
• Wrote and executed Oracle database scripts required by the Oracle SOA suite and Oracle ADF products

Confidential

Senior Subject Matter Expert for Websphere Admin

Responsibilities:

• Performed installation/configuration/monitoring of Websphere 6 in various environments
• Involved on hardware migration from RISC to Itanium and built environments from scratch
• Responsible for Configuring and Administering JDBC, JMS, JNDI in Websphere 6.
• Used WLST scripts to deploy the application packages of WAR, JAR and EAR in Websphere.
• Deployed applications on multiple Managed Servers and maintained Load balancing
• Performed configuration and administration of Connection pools for JDBC connections
• Configured JDBC connections and data sources for Oracle database server 9i
• Performed Configured Connection Factory and Distributed Queue as JMS system resources
• Configured JNDI server as repository for EJB Home stubs, JDBC data source, JMS connection factories, queues and topics.
• Monitored error/exception logs, fixed problems and tuned parameters in Websphere
• Oversaw all aspects of infrastructure including configuration of new and existing systems on multiple platforms, security, operating system administration, software installation, and maintenance and upgrades including but not limited to Linux/Unix/Microsoft operating systems, web servers and application servers.
• Trained to perform installation, administration, and configuration of Websphere 6 on AIX platform. Also performed cloning of Websphere environments
• Trained to perform clustering, Load balancing, Deploying Applications (JAR, EAR, and WAR). Also did server fine tunings and performance enhancements
• Configured Node manager to remotely administer Managed servers
• Configured and deployed applications in various work environments: Dev, Test, QA, Prod
• Maintained and resolved troubleshooting issues for DEV/ST/QA/PLAB
• Setting up the cluster environment for Websphere Server integrated with multiple workflows
• Involved in configuration management, software deployment, change management, performance monitoring, and application maintenance.
• Applied patches and Maintenance Pack to the Websphere servers.
• Investigate and Troubleshoot issues from Websphere configuration
• Involved as primary POC for highly clustered and UNIX based applications.
• Performed maintenance and supported Tuxedo environment
• Documented issues and created/maintained knowledge base of solutions
• Managed system space by deleting/zipping old log files, adding, and removing file system.
• Provided RCA against SLA related issues. Joined in bridge/calls for any outage or issues.
• Collaborated with development staff on Web and Application server analysis, monitoring, tuning, and troubleshooting as it relates to application access and transaction performance.
• Trained to provide services on applications built on Websphere also provided to support trouble shooting of webservers such as Apache Tomcat, IBM HTTP Server.
• Provided real-time technical support for environments, applications and technologies (WebSphere, Weblogic, Apache Tomcat, Oracle, UNIX, Windows, etc.).
• Performed technical migrations and code migrations between environments.
• Created deployment archives for portal and web app deployment in Websphere server.