Confidential

Roles: Sr. WebSphere Administrator

Responsibilities:

• Installed and configured IBM WebSphere Application Server 6.1/6.0/5.1, IBM HTTP Server 6.1/6.0/2.0.47 on AIX5.x using silent scripts.
• Experience in upgrading Application Server to 6.0.2.17, 6.0.2.21, and Web Server to 6.0.2.15.
• Created multiple WebSphere profiles like custom, cell, dmgr standalone using wasprofile.sh/bat and manageprofiles.sh/bat.
• Installation and Configuration of Deployment Manager to create Centralized application management.
• Deployed and maintained J2EE applications EARs to WebSphere environments.
• Provided infrastructure support during the entire life cycle of application deployment and testing.
• Worked closely with developers to Enterprise Applications, Web resources, JDBC providers and JVMs worked closely with DBAs, Security Admins, and UNIX Admins to resolve issues pertinent to database, external Security Manager ESM and OS resource utilization respectively.
• Extensively involved in migrating the all J2EE Applications, which includes setting up new Research, Dev, TEST and Production Environments from WebSphere 5.1.0.13 to WebSphere 6.0.2.17.
• Tuning and Monitoring the overall applications and system health with the statistics Average response time, Number of requests transactions and number of live http sessions, web server thread pools, the Web and Enterprise JavaBeans thread pools, database and connections pools, java virtual memory, CPU, I/O and System Paging.
• Hands on experience with performance monitoring tools like Wily Introscope and Tivoli Performance Viewer to monitor WebSphere Applications.
• Responsible for providing security for new enterprise applications like creating policy, rules, realms, user provisioning, single sign-on, Application access control using Site Minder and TAI.
• Performed Root Cause Analysis for issues pertinent to memory leaks, garbage collection etc. using Heap Dump Analyzer and Thread Dump Analyzer.
• Configured Session persistence for application servers in cluster using Memory to Memory Replication in Master-Slave mode.
• Configured WebSphere for messaging by defining Queue Destinations Queue Connection Factories.
• Handled deployment of Java servlets, Session beans and Entity Beans for each module to respective instances of application server clusters and web applications.
• Experience in implementing LDAP security models using Netscape LDAP Single Sign on SSO and IBM secure way LTPA and netegrity siteminder.
• Configured Secure Socket Layer SSL between deployment manager of WebSphere Application Server and IBM HTTP Server administration server using ikeyman utility by exchanging default dummy certificates, self-signed certificates and CA certificates.
• Installed EARs, WARs and configured application specific JVM settings, Web container parameters using the Admin Console and wsadmin.
• Involved in trouble shooting and performance tuning using Log Analyzer.
• Troubleshooting Application Servers start-up issues, Java code defects after deployment and class path issues.
• Good experience using scripting tolls like Unix Shell, ANT, Jacl and Jython.
• Documented all procedures, day to day administrative activities, Root Cause Analysis documents etc.
• Troubleshot production problems and provided 24/7 support for production systems.

Environment:

IBM Web Sphere Application Server 6.1/6.0/5.1, IBM HTTP Server 6.1/6.0, Apache Web Server 1.3/2.0, Oracle 10g, Windows 2003, IBM Directory Server 5.1, WebSphere Portal Server 6.0, Cisco Load Balancer, Shell scripts, JACL, JYTHON, XML, ANT.

Confidential

WebSphere Administrator

Worked as Senior Engineer in GECIS, in a process called CWS Corporate Web Support, CIS Web Team . Here tasks are assigned to us by a ticketing system and we complete them as per the SLA. We also keep in touch with Developers, App. Owners and co-ordinate with them to resolve issues relating to Web-Servers or App Servers. Global Infrastructure Services GIS :-Owns 6000 UNIX servers of GE CORPORATE GLOBAL and 5000 servers HEALTH-CARE servers.

Responsibilities:

• Installed, configured, and maintained WebSphere Application Server 6.0/5.1/5.0 and, IBM HTTP Server 6.0x and 2.0.x
• Installed the Refresh Packs and cumulative fixes to WebSphere 6.0 environment, plug-ins and IHS.
• Building and Configuring Clusters by using WebSphere Application Server v6.0.1x
• Configured and Enabled the Global Security System for WAS Administration for Console users and Console Groups using MS Active Directory Server as a LDAP User Registry.
• Implemented Creating and Managing the Nodes, Application Server's, Cluster's and Deployed Multiple J2EE Applications.
• Profiled all the J2EE Application's and worked with Application Groups in improving performance of application and possible memory leaks in application before deploying.
• Deployment of J2EE Applications involved in Creating Cluster's for Load Balancing and Failover, Configuring Resources like JDBC Provider, Creating Virtual Hosts, Shared Libraries, JNDI Configurations, EJB References, Creating Environment Variables, and Configuring Session Management.
• Optimized the performance of Enterprise Applications using Tivoli Performance Viewer.
• Implemented the skills of Load balancing for edge components using Cisco load balancer.
• Configured WebSphere resources including JDBC providers, JDBC data sources, and connection pools. Creating Version 4 Data Source and Version 5 Data Source depending on the enterprise application needs.
• Monitored for dumps, forced thread dumps to check for system objects using thread analyzer.
• Used Log Analyzer to monitor WebSphere Applications and tuned the environment accordingly like changing the JVM Heap, Connection Pool sizes.
• Created self-signed certificate for IBM HTTP Server using ikeyman.
• Responsible for monitoring the Wily alerts in High Availability severs in all QA and Production Environments.
• Expertise in administering and maintaining Production, Test and Development environment
• Problem Determination through the log files JVM Logs and rectified the problems or interacting with IBM support to solve problems.
• Responsible for Documentation of operational environments support procedures.

Environment:

WebSphere Application Server 6.x/5.x, Oracle9.x, XML, SQL, Java, DB2, Jython, Shell Script, Perl, Window NT, LINUX Red Hat 4.2 , Solaris v7, TCP/IP, IBMHTTP Server 2.0.47.1. , Cisco load balancer.