SUMMARY

• 6+ years of IT industry experience in Systems Administration, IBM WebSphere Application Server 5.x/ 6.0/6.1/7.0/8.0 Administration, integrating with all the J2EE components. Technical abilities include installations, configurations, security, migrations, and technical support for large enterprise applications.
• Proficient in Architecture, Installation, Setup and Configuration of IBM WebSphere Application Server 7.0/6.x/5.x and IBM Http Server 2.x/6.x/7.0. Involved in configuring J2EE Enterprise Applications on heterogeneous platforms under multi - cell and multi-node environments.
• Experience of system administration on Sun-Solaris 10/9/8/7/2.x, Linux (Redhat, Suse), AIX4.x/5.x, Windows NT/2000.
• Strong experience in Linux Administration with proven knowledge of security procedures and settings.
• Design and Implement virtualization solutions based on VMware vSphere ESXi 5.0/5.1, ESX 4.1/4.0/3.5 platform and vCenter 5.0/2.5.
• Experienced in TCP/IP fundamentals DNS, FTP, LDAP, Remote Access, Security Management, System Troubleshooting skills, and good knowledge in networking concept including Load Balancers and Firewalls.
• Expertise in Tuning of Application Servers by Tivoli Performance Viewer and Compuware Vantage Analyzer like setting the dynamic cache size and setting the JVM heap size using collected Performance Monitoring Infrastructure (PMI) data.
• Resolved Deployment issues and network issues for Development team and in Production Environment. Created Data Sources to a variety of Databases, including DB2, SQL and Oracle.
• Hands on experience in deploying, implementing, testing and support of full life cycle implementations of various J2EE/Internet/Intranet and distributed applications.
• Opened PMR’s and working closely with IBM support to resolve all environmental issues.
• Highly skilled in updating plugin and config file for troubleshooting and improving performance.
• Performed root-cause analysis for production outages and provided management with analysis reports.
• Configured global security for WebSphere Application Server using IBM Directory Server as LDAP user registry and configured SSL for ldap communication.
• Configured Queue Connections Factories, Queue Definitions, and Listener Ports in order to provide connectivity to Enterprise MQ infrastructure and also worked on Service Integration Bus (SIB) configuration in V6.x.
• Experience in configuring XI50 Data Power appliances
• Experience in performing Data power Firmware Upgrade and providing access to new users in Data power.
• Involved in configuring SSL (https) for webservers, creating Key databases, personal certificates for test environments, generating and installing Third party certificates.
• Well experienced in writing shell scripts in bourne and korn shells, wrote JACL, python, jython scripts to automate most of the WebSphere administrative tasks via the wsadmin util, CRON jobs and deploy on LPARS.
• Excellent team worker and ability to quickly adopt and work under minimal supervision. Ability to communicate requirements effectively to team members and manage applications. Extensive experience in providing 24/7 on-call support for applications running on IBM WebSphere J2EE application servers.

TECHNICAL SKILLS

Operating Systems: IBM AIX 5.x, 6.x, Linux (Red Hat 6.x/7.x), Sun Solaris 7.x/8.x, Win NT/2000, HP-UX.

Languages: C, Java, JavaScript, HTML.

Web Technologies: JSP, Servlets, EJB, RMI, JAAS, JMS, XML, XSLT.

Tools: Resource Analyzer, Log Analyzer.

RDBMS: Oracle 9i/10g, MS SQL Server2000, DB2

Application Servers: WebSphere Application Server 5.x/6.x/7.x/8.x. WebSphere Commerce Server 7.x

Web Servers: Apache, IBM HTTP Server, Sun One WebServer.

Networking: HTTP, TCP/IP, SNA, DNS, LAN, WAN, SSH, DHCP, SMTP, POP3, IMAP, LDAP, Samba, VPN solutions, MS Proxy Server 2.0.

Scripting Languages: Shell Scripting, Perl, Jacl, Ksh, Jython

PROFESSIONAL EXPERIENCE

Confidential, NC

Sr. System Engineer

Responsibilities:

• Installed, configured, and maintained WebSphere Application Server XD/ND 7.x and WebSphere Commerce Server 7.x Deployment Manager and Application Server Profiles on VMware vSphere 5.1 Platform.
• Federating the WebSphere Commerce Server to the WebSphere deployment manager and experienced in deploying the EAR’s provided by the developers.
• Implementation and troubleshooting VMware ESX 5.0/5.1 Hosts, VMware vSphere virtual center.
• Installed and configured the IBM HTTP Server 6.x. in Linux and AIX platforms
• Supporting Application migrations from development environments to QA, Stress and Production environments.
• Experienced in developing WSADMIN scripts to automate the various administrative tasks for WebSphere application server.
• Installed Fix packs, Refresh Pack and Interim Fix Pack to overcome App server problems APARS to overcome commerce related problems.
• Configuring new commerce instances with respective resources.
• Publishing stores and sites from commerce accelerator
• Implemented Global Security and configured SSL
• Configured virtual hosts, session management, and transports for WebSphere Application Server.
• Configured application specific JVM settings, Web container parameters using the Admin Console and WSADMIN.
• Supporting Application team deployments that are done thru BANDD
• Troubleshoot problems with performance using the Heap Analyzer, GC Analyzer and Thread Analyzer.
• Problem determination through the log files and rectifying the problems by coordinating with Apps Dev team/ DB team/ MQ team members.
• Configured Web sphere resources like JDBC providers, JDBC data sources and JMS.
• Used ITCAM / Dynatrace 4.x, 5.x to monitor WebSphere Applications and tuned the environment accordingly like changing the JVM Heap, & Connection Pool sizes.
• Deployed application WebSphere Application Server Network Deployment in QA, Staging and Production environments and troubleshoot various configuration and application issues.
• Active involvement in monitoring server performance using CA Wiley Introscope / Dynatrace to reduce performance bottleneck.

Environment: Websphere Application Server7.x ND, WebSphere Commerce Server 7.x, VMware vSphere 5.1, Oracle9i/10g, XML, SQL, Java, DB2, Shell Script, Jython, Window Server 2008, UNIX, z/OS, Linux (RHEL), AIX, TCP/IP, IBMHTTP Server 6.x, Sun One. Dynatrace 4.2.

Confidential, LA, CA

Sr. WebSphere Administrator

Responsibilities:

• Involved in providing support to wide variety of applications in a diverse setup which includes WebSphere Application Server ND/XD 7.0 on AIX 5L 5.3 and Red Hat Enterprise Linux 5.
• Installed, configured and administered IBM WebSphere Application Server 7.0/8.5, IBM WebSphere on AIX, and Red hat Linux Environment.
• Deployed Applications (WAR, JAR, and EAR) in Domain and Clustered environment.
• Involved in monitoring the JVM performance by Web Sphere Heap Size, garbage collection and JDBC Pools.
• Troubleshooting Application & JVM errors and configured, tuned JVM for optimum performance.
• Intensively involved in IBM WebSphere Application Server troubleshooting scenarios like Out of memory, fusing IBM tools like Heap Analyzer, Thread Analyzer.
• Involved in setting up JVM tuning parameters after extensive R&D on trial & hit basis specifically parameters to enable inter core-group communication (for affective WLM) such as garbage collection.
• Installed Fixpacks, eFixes, and cumulative fixes to the existing infrastructure and new environment.
• Implemented horizontal, vertical & multiple clustering of application servers for achieving work load management (WLM), HA Manager, Scalability and avoiding single point failure.
• Involved in writing UNIX Shell scripts, JACL and Jython to automate the maintenance process of the WebSphere and recovered the backed up Web Sphere configuration using wsadmin, backupConfig and restoreConfig.
• Created DMGR, application server and custom profiles in Linux platform for dev, test, preprod and production and federated application server and custom profile to DMGR using addNode.sh command.
• Migrating applications from WebSphere Application v6.1 ND to WebSphere Application Server v7.0 ND.
• Enabled Security features using LDAP user registry for authentication and authorization privileges for Admin console.
• Worked with QA Team for Load Tests and Performance tests and identified the bottlenecks of the applications.
• Responsible for designing and documenting middleware components through the course of the projects.
• Provided Netegrity Siteminder and Identity Minder Identity Management solutions for the client Option.
• Configured WebSphere resources including JDBC providers, JDBC data sources and Connection Pools.
• Configured Session Persistence using different RDBMS Databases.
• Installing IBM HTTP Servers and integrated with WAS for load-balancing and fail-over using generated plug-in.
• Analyzed the problems using IBM Support Assistant (and/or interact with IBM support to solve the problems by sending IBM Problem Management Records (PMR).
• Performed root-cause analysis for production outages and provided management with analysis reports.
• Monitored Log analyzer, Product logs, Installation logs, Administer server logs and Application server logs during troubleshooting for reported errors.
• Analyzing the scalability of the applications with the help of tools like IBM Tivoli Site Analyzer, Tivoli performance viewer.
• Responsible for supporting the existing portal Applications like Member portal and Group Portal and Managing the themes and skins, Deploying the portlets and virtual portals.
• 24/7 on call production support and troubleshooting problems related to WebSphere Application Server.

Environment: IBM WebSphere Application Server ND 6.1/7.0, WCM 6.x., Solaris 8/9, AIX 5.3, Red hat Enterprise Linux 4, Site minder, WCM, Apache WebServer v2.0, IBM HTTP SERVER v6.1, Wily Introscope, Oracle 9i/10g, DB2, Java/J2SE 1.4, J2EE 1.3, IBM Directory Server.

Confidential, Charlotte, NC

Middleware/Websphere Administrator

Responsibilities:

• Installed, configured and administered IBM WebSphere Application Server 6.1/7.0, IBM WebSphere on AIX, and Red hat Linux Environment.
• Configured clustered Environment (Horizontal/Vertical Scaling).
• Worked in different environments like Development and Pre-production.
• Configured clustered environment in Web Sphere Application Server V 6.1.X and deployed applications on Windows, Linux and Solaris environment.
• Gained good experience in administration of WebLogicV8.1. Involved in clustering, deploying/supporting web applications in production environment. Involved in performance tuning, trouble shooting, patching, worked with BEA support and development teams for issue resolution.
• Deployed EAR applications in clustered WebSphere Application Server for Dev and Pre - Production environments.
• Setup profiling tools for J2EE Application's and worked with Application Groups in improving performance of application and possible memory leaks in application before deploying.
• Upgraded Applications with various patch files (EJB classes,JSP's, Class files, changing various properties and property files)
• Created Digital Certificates and configured SSL for WebSphere, Http Server, iplanet and IIS.
• Configured and Enabled the Global Security for WAS Administration Console users and Console Groups using Active Directory Server as a LDAP User Registry.
• Worked with IBM Support and development teams in resolving issues related to application memory leaks, analyzing java cores and heap dumps using Thread and Heap analyzer tools.
• Developed WSadmin scripts using Jacl, Jython to automate WebSphere processes including start/stop, creating and configuring servers, JDBC and MQ resources, deploying applications on stand-alone and clustered environments.
• Involved in configuring SSL (https) for webservers, creating Key databases, personal certificates for test environments, generating and installing Third party certificates. Involved in securing the J2EE applications by implementing Single Sign On by using LTPA and Integrity Site Minder.
• Worked on Problem tickets (PMR’s) with IBM to find effective solutions to various problems and performance issues.
• Configured and administered Connection pools, multi connection pools and Data Source for JDBC connections.
• Worked closely with developers in deploying ears and wars, configuring necessary database resources (JDBC Providers, data sources), MQ resources (Queue Managers, Queue destinations, Queue Connection Factories (qcf's), Message driven bean listener ports).
• Involved in migrating applications from WAS V6.1 to 7.0/7.0.0.3/7.0.0.5.
• Involved in Creating Shell Scripts like Automation of Startup and Shutdown Processes and Automated the WAS environment with Jacl and Jython Scripts.
• Performance tuned the WebSphere Environment by configuring caching, queuing, pooling, JVM parameters and Problem determination using Tivoli performance viewer (TPV).
• Involved in Troubleshooting Admin Server start-up issues, Java code defects after deployment, like class path issues and application properties file errors by checking JVM logs and Plugin-logs.
• Involved in Trouble shooting and Performance tuning using Resource analyzer and Log analyzer.
• Provided 24X7 supports to the clients in production support environment.

Environment: IBM WebSphere Application Server 7.0/6.1.0.13/5.1/5.0.2.5, NDM Connect Direct 4.0, Netegrity Site Minder5.5/4.5, LDAP SunOne directory Server, J2EE1.3/1.2, Java2.0, JSP1.2, EJB2.0, JDBC2.0, XML, Windows 2000 Advanced Servers, Sun Solaris8/9, Site Scope, WSAD5.0/40, DB2, Oracle 8.1.7/9.0.5, Remedy User, Shell Scripts, wsadmin scripting.

Confidential, Charlotte, NC

WebSphere Administrator

Responsibilities:

• Planning, Design, Installation and Integration of WebSphere Application Server Network Deployment 6.1.0.3/5.1.2.11, IBM Http Server 6.1/1.3.28 and Apache 2.0.47 on Linux.
• Worked on critical and 24/7 environment supporting IBM products like WebSphere Application server, IBM HTTP Server, WCS and Rational Products on Linux and Windows 2003 platforms.
• Handled the maintenance of the WebSphere Application Servers on Sun Solaris/Windows platforms and setting up of the developing, staging and production environments for the ongoing application development.
• Wrote KShell scripts to monitor installed enterprise applications and to get information from the logs and database in the required format and other daily activities and jobs.
• Installed and configured remote/local IBM Http Server and manually updated plug-in files for IHS servers located in DMZ.
• Worked with BackupConfig, RestoreConfig commands for backup and restore the configuration of nodes and cell.
• Reviewed security procedures and access policies to ensure proper access and rights to various applications accessed through the portal.
• Used Wily Performance tool for monitoring and tuning the WebSphere environment like configuring Heap size, Thread pool size, Session Management, connection pool size, etc.
• Implemented logical security server architecture integrating WebSphere Application Server, WebSphere MQ, Sun ONE WebServer, iPlanet LDAP Directory Server, Netegrity Siteminder and implemented Single Sign-On security.
• Good knowledge in Applications developed using Servlets, JSP, Struts, HTML, JavaScript. Worked on environment using Struts framework based on Model 2 architecture.
• Generated and moved http plug-in config to the web servers like iPlanet and solved problems for plug-in regeneration.
• Enabled security for the Admin Console and the application components by creating user registry in LDAP (IBM Tivoli Directory Server).
• Worked with the Asset Management Team to install Renewed and New SSL certificates on Web Servers using IKEYMAN utility.
• Configured and maintained SOA registry and repository to achieve more business value from the Service Oriented Architecture by enabling better management and governance of the services.
• Responsible for design, architecture and development of major components of WAS and protocols like http, RMI-IIOP, soap/http, and WSDL.
• Worked on defining and configuring Application Servers, Web Applications, Servlets, and Servlet Engines as well as deployment of EJB’s across multiple instances of WebSphere.
• Responsible for the planning and designing to rebuild the entire enterprise system from scratch using J2EE and Services Oriented Architecture (SOA) and built a roadmap for the enterprise systems to support its vision to bring all applications into one Enterprise Portal.
• Worked and solved variety of issues with WebSphere and J2EE applications. Provided 24/7 support for critical applications with on-call pager rotation, flexible to work during off hours.

Environment: WebSphere Application Server 6.1.0.3/5.1.2.11, IHS WebServer 6.1/1.3.28, iPlanet 4.0, Application Server Toolkit V6.1, Visual Source Safe, WSAD, Wily Introscope, Tivoli Directory Server v5.0 (LDAP), XML, Oracle 9i/10g, Sun Solaris 10/9,, Linux, Windows 98/00/xp-Sp3.

Confidential

System Administrator

Responsibilities:

• Supported Load Balancing and WebSphere Application Server clustering for failover.
• Used WebSphere Control Program (WSCP) to define, configure and manage database objects.
• Configured virtual host for development and test environments.
• Packaged and deployed applications using WebSphere Application Assembly Tool (AAT).
• Created user roles and groups for securing the resources using local operating system authentication.
• Configured iPlanet web server to work with WebSphere.
• Developed WebSphere Control Program (WSCP) scripts and Shell scripts to automate the maintenance process of the WebSphere and recovered the backed up WebSphere configuration using XMLConfig tool.
• Installed and configured IBM Edge Server and Network Dispatchers for load balancing.
• Developed WebSphere backup scripts using WSCP and TCL.
• Implemented security using IBM Tivoli Directory Server.
• Installing, configuring, administering and troubleshooting JBoss Application Server V2.
• Configured Work Load Management (WLM) using horizontal and vertical cloning.
• Deployed Session and Entity EJBs in WebSphere.

Environment: WebSphere Application Server, IBM HTTP Server, Apache Web Server, UNIX (Solaris, AIX, Linux), Shell Scripts, Java, JSP, Servlets, EJB, XML, JDOM, JDBC, JavaScript, DB2, HTML.