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Java Developer Resume Profile

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Professional Summary

  • 7 years experience in installing, configuring, administering IBM WebSphere Network Deployment 8.0/7.0/6.1.x/6.0.x.x/5.1.x.x on distributed systems.
  • Experience in installation and configuration of Apache Tomcat Server, IBM HTTP Server and Iplanet Web Server.
  • Experience in installation of Plug-ins for WebSphere Application Server with Apache HTTP Server and IBM HTTP Server.
  • Experience in monitoring and maintaining multiple Applications in Development, QA, Staging and Production Environments.
  • Experienced in applying fixpacks using Centralized installation manager.
  • Successful implementations of Workload Management WLM using cloning and clustering techniques including horizontal and vertical clustering for achieving high availability, scalability and failover.
  • Experience in configuring and deploying J2EE applications on WAS ND.
  • Well acquainted with configuring SSL Certificates, Self-Signed Certificates. Used ikeyman and gsk tool kit for generating certs.
  • Monitored the performance of the deployed applications, WebSphere Application Server by enabling the Performance Monitoring Infrastructure PMI using Runtime Performance Advisor, Tivoli Performance Viewer and Wily Introscope.
  • Expertise in using wsadmin scripts and Shell scripts to administer and automate batch job scheduling including backup and recovery processes and rotating logs.
  • Profound knowledge of IBM Tivoli Identity Management and Third Party Vendors, such as Integrity Siteminder etc.
  • Created and configured MQ series Objects like Queue Manager, Queue and Channels.
  • Experience with MQ Series Clustering and MQ Client/Server.
  • Extensive knowledge on SOA Architecture and Web Services Technologies.
  • Proficient in using RAD/WSAD to develop Multi-Tier Enterprise Applications and in web services implementation using SOAP, WSDL and UDDI.
  • Used Heap Analyzer and thread Analyzer to tune the WebSphere JVMs.
  • Used Tivoli Performance Viewer and IT CAM to monitor the performance.
  • Provided On-site Storage Administration support and technical services to assist with installation of Storage products.
  • Strong understanding of J2EE JSP, Servlets, EJB, JNDI, JMS , Java2.0, JDBC, Java Beans, RMI, XML, XSL, XSLT, XML Schemas and DTD, HTML, SQL.
  • Excellent Diagnostic skills, Quality assurance, Quality control and Analytical skills.
  • Familiarity and experience with various procedures and policies required for escalation and outage resolution with Strong documentation skills. Consistently met metric goals SLAs and target dates with a high level of customer satisfaction.
  • Detect problems in early development stage and utilizing effective troubleshooting skills.
  • Opening Problem Management Records PMR's and working closely with IBM support to resolve environmental issues.
  • Excellent communication, analytical skills and highly flexible to learn new technologies in the IT industry and work towards company's success.
  • Quickly adaptive to new environment and has the capability of completing complex tasks independently.

Technical Skill Set:

  • ApplicationServer/Web Servers:
  • WebSphere Application Server 7.x/6.1.x/6.0.x/5.1.x/5.0.x, JBoss Application Server 4.x, IBM HTTP Server 6.1/6.0.x/2.0.42.x/2.0.47/1.3, Apache 2.2/2.0.47/1.3.28, IIS 6.0/5.0, Sun One Web Server 6.1/6.0, Apache Tomcat 6.0.x/5.x.x/4.x
  • Other Servers:
  • WebSphere Portal Server 6.0.x/5.1.x/5.0.x, WebSphere MQ 6.1.x/6.0.x.
  • Operating Systems:
  • Sun Solaris 10/9/8, IBM AIX 6.0/5.3/5.2, Suse Linux 10.x/9.x, Red Hat Linux 9/8/7.2/7.1, RHEL 4.x/3 and Windows XP/NT/2003/2000 Server.
  • Directory Servers:
  • Tivoli Directory Server V6.0/5.2, Sun Java System Directory Server v5.2, Microsoft Active Directory Server 2003/2000.
  • Java Technologies:
  • Servlets, Applets, AWT, Swing, Beans, EJB, J2EE, JMS, Networking, JDBC/ODBC, JNDI and RMI.
  • Languages:
  • C, JAVA, SQL, PL/SQL, PHP.
  • Monitoring Tools:
  • Tivoli Performance Viewer, ITCAM, Thread Analyzer, Log Analyzer, Heap-Analyzer, Wily Introscope 7.1/6.0 and CRM.
  • Scripting Languages:
  • Unix Shell Script, PERL, JACL, JYTHON.
  • Markup Languages:
  • HTML, XML/XSL and DHTML, PHP.
  • Databases:
  • Oracle 11g/10.x/9.0.2.5 /8.1.7/ 7.x, DB2UDB 9.x/8.x/7.2/7.1, Sybase, Cloudscape, Microsoft SQL Server 20003/2000 and MS Access 2000.
  • Automation Tool
  • BMC Bladelogic.
  • SCM Tools:
  • Clear Case, PVCS, Sub Version.
  • Protocols:
  • TCP/IP, FTP, SMTP, SOAP, and HTTP.

Professional Experience:

Confidential

Sr WebSphere Administrator

Responsibility:

  • Installation, configuration and maintenance of WAS 7.x/6.x on Sun Solaris, Linux RHEL and AIX environments and created different instances of the App Server for various environments.
  • Deployed Enterprise J2EE Applications using the deployment Scripts and administration console, Configured and deployed various resources required for the application and maintaining the central repository for all the instances of the applications.
  • Optimized IT resources using WebSphere ND.
  • Configured Autonomic request flow managers for fine-tuning and runtime topology in WebSphere ND environment.
  • Created Dynamic Clusters for optimized of resources using WebSphere ND.
  • Involved in migration of all the applications on WebSphere 6.0.2 to 7.x
  • Implemented the Clustering Topology for Application Server that meets High Availability and Failover requirement for performance and functionality.
  • Managed Security and Performance optimizations for IBM WebSphere Application Server, IBM HTTP Server and Apache Web Server.
  • Used SCM clear case tools for software versioning and deployments.
  • Configured the Web Server interfaces, Virtual Hosts and Session Management.
  • Analyzed Heap dumps and Core dumps using IBM Heap analyzer and thread analyzer.
  • Enabled Security features using LDAP user registry, LTPA and Single Sign-On for authentication and authorization privileges.
  • Configuring global security, SSL, generate and create a Cert Request from the VeriSign Certificate Authority and import the cert from the certificate authority in the Key Database.
  • Configured Virtual hosts, Data sources, Servlets, JDBC drivers, J2C Aliases, EJBs and setting up the Local Buses SIB across multiple instances of Application Server
  • Troubleshooting on issues such as out of memory, memory leaks, hung sessions and session replication, federation of nodes and synchronization of nodes with NDM.
  • Experience in performance tuning of JBoss Application Server by Thread dumps, Heap dumps, Garbage collector analysis.
  • Configured WebSphere connection resources like JDBC providers, JDBC data sources, connection pooling.
  • Extensive hands on using UNIX Shell scripts, PERL and JYTHON automated scripts for administration.
  • Configured IBM HTTP Server with SSL for communication between Plug-in and Application Server.
  • Handled everyday System Administration tasks such as backup procedure, system clean-up, rotating logs, creating system alerts and other everyday system tasks.
  • Enabled Performance Monitoring services through admin console then monitored and analyzed the performance data using Tivoli Performance Viewer.
  • Configured JNDI data source with a DB connection pool in Apache Tomcat 6.x
  • Built mod jk for windows and unix and configured Apache to route the requests from web to application server.
  • Installed and configured SSL support so that the Apache Tomcat servers requests using the https protocol.
  • Configured BigIP so that the requests to the application are routed using the desired DNS name.
  • Created Self-Signed certificate for WebSphere, Apache and IHS using Keytool, Open SSL and ikeyman tool.
  • Install and configure ITCAM Server Agents, Performance availability using IBM Tivoli CAM.
  • Configure the Performance alerts thru mails on Web Applications
  • Performed IBM Tivoli Composite Application Manager ITCAM activities for Response Time that simulates actual business processes, end user's perspective for measuring performance.
  • Experience with Tivoli Federated Identity Manager, Webseal and Tivoli Access Manager.
  • Involved in assisting QA team in Load and Integration testing of J2EE applications on WebSphere Application Server.
  • Responsible for updating UTracker- an interactive web based tool for tracking critical Info related to resource management, utilization, troubleshooting issues, including server names and network diagrams
  • Maintained updated documentation of all the Servers, installed applications and updates.
  • Created IBM Problem Management Records PMR to report WebSphere Application Server problems.
  • Assembled and deployed the application in Development, Staging and Productions following change management practices and 24/7 support.

Environment: IBM WebSphere Application Server 7.x/6.x, Apache Tomcat Server 6.0.x/5.x, ORACLE 11g/10.x, Sun Solaris 9 10, RedHat Linux 9.0 10.0, Windows 2003 Server, BladeLogic, ITCAM, CA Siteminder, PERL.

Confidential

Sr WebSphere Administrator

Middleware Administrator

  • Installed, configured and maintained IBM WebSphere Application Server 6.1.x/6.0.x, IBM HTTP Server 6.1/6.0.x/2.0.47, Apache Web Server 2.0.49 /2.0.52 on Sun Solaris 9 10, Suse Linux 9.0 10.0 and Windows 2003 platform.
  • Upgraded WebSphere ND 6.1/6.0 with refresh packs and fixes packs.
  • Integrated and deployed Enterprise J2EE applications on WebSphere ND 6.1.x/6.0.2.x that involves EAR, JAR, WAR files using Admin Console and automated scripts.
  • Installed, configured and administered JBoss Application Server 4.3/4.0 on AIX, Linux and Windows servers.
  • Configured JBoss Application Server with DB2 database.
  • Deployed various applications on JBoss Application Server.
  • Coordinated and managed Application lifecycle using JBoss Operations Network.
  • Configured Message driven Beans through deployment descriptors in JBoss Application Servers.
  • Configured various resources required for the application and deployed them.
  • Created Clusters both horizontally and vertically.
  • Configured JNDI binding for JMS, EJB and JDBC Data Sources.
  • Troubleshooting Applications and analyzing logs to diagnose problems.
  • Coordinating with the Operations, Database, Network and the System administration teams to resolve issues.
  • Installed and configured WebSphere Portal Server 5.1.0.1 on WAS 6.0.2.7 and upgraded WebSphere Portal 5.1.0.1 to Web Sphere Portal 5.1.0.3
  • Implemented portal server clustering and executed all the tasks related to this activity such as, database migration, database connection, enabling security etc.
  • Changed the LDAP host name to point to a new LDAP host name in both WAS configuration and WPS configuration wmm.xml when the current LDAP server was undergoing maintenance.
  • Used IBM Rational Application Developer to design, develop, analyze, test, profile, and deploy high-quality Web.
  • Used the Tivoli Performance Viewer to monitor the performance of the systems, log the performance data, or view data that had been previously logged.
  • Installation and configuration of Introscope Workstation, which allows Java Application Monitoring by viewing the Metric Output recorded into the Enterprise Manager
  • Installation and Configuration of SiteMinder Web Agent on WebServers like IHS for authentication, authorization and single sign-on.
  • Installed and configured SSL support so that the Apache Tomcat servers requests using the https protocol.
  • Worked on Tivoli Composite Application Manager ITCAM to improve Speed and simplify identification and resolution of SOA problems.
  • Monitored Enterprise Applications using ITCAM.
  • Used IBM Heap Analyzer and IBM Thread Analyzer to analyze heapdumps and core dumps.
  • Used GC Collector to analyze verbosegc logs native stderr.log to monitor and assess the jvm runtime heap usage. Used Collector Tool to gather information about installation and packages.
  • Creation and management of data source and database connection pools.
  • Integrated WebSphere with LDAP and Oracle Database.
  • Created JDBC Resources and various data sources. Tuned database connection pools, thread pools, JVM Heap Size to required sizes using admin console.
  • Configuring of JDBC providers, virtual hosting, global security, SSL, LDAP.
  • Performed routine management of WebSphere environment like monitoring disk space, CPU utilization.
  • Worked as WebSphere SME in performance testing and troubleshooting various issues. Opened PMR Problem Management Record with IBM and worked with them closely as a part of troubleshooting efforts.
  • Worked as a part of 24/7 on-call support for production environment.

Environment: IBM WebSphere Application Server ND/XD 6.1.x/6.0.x, JBoss Application Server 5.0/4.x, WebSphere Portal Server 5.1.0, Apache Tomcat Server 6.0.x/5.x, DB2 9.1/9.5, ORACLE 11g/10.x, Sun Solaris 9 10, Suse Linux 9.0 10.0, Windows 2003 Server, ITCAM, Tivoli Directory Server v6.0/5.2 LDAP , PERL.

Confidential

WebSphere Administrator

Middleware Administrator

  • Installed and configured IBM WebSphere Application Server 6.1.x/6.0.x/5.1.x and IHS 6.0.x/2.0.x/1.3.x on IBM AIX 5.3/5.2, RHEL 4.x/3 and Windows 2003 server in a multi clustered high availability environments.
  • Generated HTTP plug-in config and configured with web servers by doing manual edits.
  • Migrated WAS from 5.1.1.3 to 6.0 in development, test and production environments.
  • Implemented horizontal and vertical scaling of WebSphere Application Server in a workload managed cluster to avoid failover.
  • Installed, configured and Administered IBM Websphere MQ 6.0/5.3 on several envirnoments.
  • Configured JMS provider using WebSphere MQ.
  • Created and configured MQ series Objects like Queue Manager, Queue and Channels.
  • Deployed Enterprise applications on clustered Application Servers and maintained applications.
  • Automated application install, uninstall and application enhancements through Shell scripts, PERL and JACL scripts.
  • Generated plugin.conf file for web servers and troubleshooted plug-in regeneration problems.
  • Created user roles and groups for securing the resources using LDAP user registry, implemented SSO security and configured WAS Global Security using Tivoli Directory Server.
  • Configured Demilitarized zone DMZ topologies involving multiple firewalls and provided security.
  • Configured WebSphere resources like JDBC, J2C and JMS and troubleshooting for Connection Pooling problems.
  • Configured IBM WebSphere Process Server with OpenDS as an LDAP user registry.
  • Configured the adapter for Event processing that can be synchronous or asynchronous and listeners within the adapter to provide support for SOAP over HTTP, HTTPS and JMS transports.
  • Integrating Enterprise-wide J2EE applications and deploying using WebSphere Application Server and Application Assembly Tool.
  • Reviewed Web Server, Application Server Performance Monitoring data using both Wily Introscope and Tivoli Performance Viewer and reviewed historical Tivoli logs for root cause analysis, recurring events and involved in troubleshooting the recurring problems.
  • Configured Tivoli Enterprise console and provided automated problem diagnosis, thereby improving system performance.
  • Enabled Performance Monitoring services through admin console then monitored and analyzed the performance data using ITCAM.
  • Utilized the ITCAM in identifying the bottlenecks of the components that are not functioning properly for better end user performance.
  • Designed and developed scripts to automate manual tasks related to operations and maintainance.
  • Maintained UNIX Shell Scripts/WSCP, JACL to automate the WebSphere administration deploying customer applications, logs rotation, monitor applications state etc..
  • Worked on Problem tickets PMR's with IBM to find effective solutions to various problems and performance issues.
  • Well documented all procedures and any other important issues.
  • Provided 24/7 on-call support on rotation basis.

Environment: WebSphere Application Server ND 6.1.x/6.0.x/5.1.x, IBM WebSphere MQ 6.0/5.3, IBM HTTP Server 6.x/2.0.47/1.3, IBM AIX 5.3/5.2, RHEL 4.x/3, Windows 2003, DB2UDB 8.0, Tivoli Directory Server v5.2, Tivoli Performance Viewer, wsadmin, Jacl, Wily Introscope, ITCAM, Site Minder.

Confidential

Websphere Administrator

Java developer

  • Developed Java applets using JDK and Java Swing.
  • Setup contract, Save Contract pages were developed using Grid bag layout, JTable, JTree and Node classes for saving and entering contract.
  • Implemented the Servelet and JSP specifications on Tomcat 4.x.
  • Developed and Debugged various Applets, Developed Date and Notice pages using Grid Layout, Hash Maps, Hash Tables, Lists and Iterators.
  • Developed and Deployed JSP's, Servlets on WebSphere using IRAD and WSAD.
  • Developed and Deployed Entity and Session Beans on WebSphere.
  • Design the system, writing the specifications, development, testing and support.
  • Designed and Developed user interface using Java Swing and Jbuilder.
  • Interaction with client to study Requirements, Modifications, Analysis, Design, Coding and Testing.
  • Source Code management using PVCS.
  • Used JNDI, JDBC for connection pooling, Java Beans, JSP for presentation and Servlets to process, validate and transit the data between the server and client.

Environment: J2EE, Servlets, JSP, WebSphere v4.x,RAD,WSAD, Tomcat 4.x, EJB, Java Swing, XML, HTML, DHTML, JDBC, JNDI, Rational Rose, AWT, JDK, PVCS and Oracle.

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