MARIO RUBEN

 

SUMMARY                                                                                                                       

●       Over 7 years of experience with WebSphere application server installation, system configuration, deployment, administration and production support on heterogeneous systems like AIX, Linux and Windows NT environment with different versions of the WebSphere application server.

●       Involved in creating and configuring profiles, clusters, nodes and Servers for the WebSphere application server.

●       Hands on Experience in configuring LTPA, LDAP, SSL and Digital Signatures.

●       Configured WebSphere recourses like JDBC providers and JMS providers.

●       Experienced in JVM performance analysis using heap, thread dumps and tuning the JVM arguments.

●       Performed root-cause analysis for outages and provided management with analysis reports.

●       Expertise in supporting enterprise based distributed applications over a wide range of operating environments on a 24/7 rotation basis for high volume, secure transactions and Web services.

●       Skilled in troubleshooting and improving performance of Production based applications.

●       Excellent communication, presentation and interpersonal skills.

●       Experience with various procedures and policies required for escalation and outage resolutions with strong documentation skills.

●       Motivated problem solver with strong analytical skills

 

 

Computer System Experience

 

Development Technologies	C, C++, Core Java , JavaScript, Unix shell scripting J2EE, JAVA, Spring, Hibernate
Web/Application Servers	WebSphere 7.0/8.5 ,WebLogic 10.x , WAS community edition, Apache Tomcat ,IBM HTTP Server
Operating Systems	Windows 2000/XP,  Red Hat Linux , IBM AIX
Databases	Oracle, MySQL, IBM DB2, Sybase .
Tools	HP Quick test professional, Eclipse, BEA Tuxedo,HP Quality center Autosys ,Tivoli job scheduler, HP Sitescope, Tivoli Performance viewer, IBM Thread dump analyzer , Memory analyzer tool, App Dynamics

 

 

 

 

EDUCATION

●       Bachelor’s degree in Computer Science, CMR Institute of Technology, Bangalore, India

 

 

 

 

 

 

Professional Experience:  

 

Jul ‘15 – Present  Xoriant Corporation      Title: Expert Web Administrator 

 

Project IJ2EE Global Support ( Citi Bank Corporation)

 

Description

J2EE Team is a global administrative support for the Java based middleware applications hosted by Citi Bank corporation , the team provides administrative support to the banks leading applications like KYC and Citi risk portals

 

Contribution

●       Installed and configured the IBM WebSphere application server 8.5.5 , 7.0 (ND) on AIX and Linux operating platforms for Testing and production environments.

●       Created multiple profiles on the WebSphere application server 8.5.5and 7.0 , Weblogic 12.

●       Installed EARs, WARs and configured application specific JVM settings, Web container parameters using the admin console and used wsadmin scripts to invoke Jacl and Jython scripts in WAS 8.x/7.0.

●       Experienced in implementing and managing server clustering and maintenance of the connections pools and EJBs.

●       Involved in installing and configuring IHS WebServer and configuring VIP , WIP LoadBalancers.

●       Implemented the horizontal and vertical scaling of the WebSphere application server for workload management in a cluster.

●       Managed and monitored the JVM performance by Web sphere Heap size, garbage collection and connection pools.

●       Experienced in providing root cause analysis and suggested fixes to stabilize Production based systems.

●       Installed fix packs to overcome the application server problems.

●       Configured Willy and App Dynamics to monitor application performance .

●       Automated installs and log monitors to detect adverse issues.

●       Configured of JDBC providers, data source, virtual hosts, global security, SSL and LDAP.

●       Analyzed the activity log files and diagnosed the application server problems.

●       Troubleshot the problems related to the Webserver/App server’s configuration issues and performance issues.

●       Used the automated scripts to perform routine management tasks on the WebSphere environments like monitoring disk space, CPU and memory utilization.

●       Supported applications 24X7 on-call on a rotational basis.

●       Responsible for analyzing the client’s request and resolved the issues by setting up bridge calls for production issues and investigated  all aspects of the event until it get resolved or to escalate if necessary.

 

 

EnvironmentJ2EE,  IBM Web Sphere Application Server 7.x 8.x,. Tivoli performance viewer, Autosys, Sitescope, UNIX shell scripting, wsadmin scripting , Cloud based servers.

 

 

Dec ‘09 – July 2015TATA Consultancy Services     WebSphere Administrator 

 

Project IEnvironment Management Systems ( Bank Of America )

 

Description

Card distributed environment management system is a group of front end, middleware and Web based credit card applications. The project is involved in development of Bank of America’s credit card applications such as, online banking, call center rewards super stations and many other applications. The project is involved in creating WebSphere environments and developing software solutions for the banks Web based applications.

 

Contribution

●       Interacted with the business partners to understand their needs in application.

●       Provided effort estimations for the design and development phase.

●       Prepared high level and low level design documents from the requirements.

●       Planned and coordinated the application enhancements and performance tuning activities.

●       Constructed new WebSphere application environments and developed solutions for       systems integration to work in accordance with the existing distributed environment setup consisting of various legacy tuxedo and WebSphere applications.

●       Configured WebSphere recourses like JDBC providers, JMS providers and WebSphere MQ connections to the required applications.

●       Performed monitoring of  the Web tier Infrastructure resources like CPU,Server statistics , Webservices health , disk usage etc.

●       Created documentation, and documented the new processes and designed changes performed for the migration of the applications to the new environment.

●       Tested and coordinated efforts for any hardware or software upgrades.

●       Developed the codes, code reviews and unit testing of the developed application on time.

●       Validated interoperability of the applications on the environment and fix any environment related issues for better performance of the application.

●       Coordinated meetings with the development teams to fix the code related issues.

●       Conducted reviews of all of the deliverable's, system documents, codes and test plans to ensure quality.

●       Setup jobs in Maestro and Autosys to automate data processing and system administration tasks.

●       Regular enterprise application deployments into the WebSphere application servers and maintenance.

●       Involved in troubleshooting with IBM Heap Analyzer and IBM Thread DumpAnalyzer to improve performance.

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EnvironmentJava, J2EE, JSP, IBM Web Sphere Application Server, log4j. Tivoli, Autosys, HP Quality center, Quick Test Professional, Sitescope, UNIX shell scripting.

 

 

 

 

 

 

 

Project IITechnology Infrastructure ServicesWebSphere Administrator 

Contribution

●       Installed and configured the IBM WebSphere application server 6.0/6.1/7.0 (ND) on AIX operating platforms for development and production environments.

●       Configured WAS and set up environments for the new applications.

●       Created multiple profiles on the WebSphere application server 6.0&6.1and 7.0.

●       Installed EARs, WARs and configured application specific JVM settings, Web container parameters using the admin console and used wsadmin scripts to invoke Jacl and Jython scripts in WAS 6.x/7.0.

●       Experienced in implementing and managing server clustering and maintenance of the connections pools and EJBs.

●       IBM HTTP server and plug-in installation and configuration.

●       Implemented the horizontal and vertical scaling of the WebSphere application server for workload management in a cluster.

●       Managed and monitored the JVM performance by Web sphere Heap size, garbage collection and connection pools.

●       Installed fix packs to overcome the application server problems.

●       Configured of JDBC providers, data source, virtual hosting, global security, SSL and LDAP.

●       Configured the WebSphere application server on multiple platforms for both horizontal and vertical scaling for the work load management.

●       Analyzed the activity log files and diagnosed the application server problems.

●       Troubleshot the problems related to the Webserver/App server’s configuration issues and performance issues.

●       Used the automated scripts to perform routine management tasks on the WebSphere environments like monitoring disk space, CPU and memory utilization.

●       Supported applications 24X7 on-call on a rotational basis.

●       Responsible for analyzing the client’s request and resolved the issues by setting up bridge calls for production issues and investigated  all aspects of the event until it get resolved or to escalate if necessary.

     

 

Environment

WebSphere Application Server 6.0&7.0, DB2, Oracle, Windows XP, AIX and Linux.

 

 

Project IIIDocument Services Unix/Linux Administrator

 

Contribution 

●       UNIX administration of document services application setup.

●       Created the files system architecture with appropriate access for all the documents generation applications.

●       Automated all of the manual scripts to process with autosys job scheduler.

●       Set up MQ connections to the Websphere application server.

●       Setup automated file ingestion and transferred services with Mainframe.

●       Created UNIX shell scripts to invoke IBM ETL processes.

●       Responsible for deploying the templates which converted the XML file to PDF.

●       Responsible for making sure the generated documents were available for testing.

●       Responsible for setting up the printer services.

 

Environment

            Linux/AIX/Unix, WebSphere MQ, Autosys R11, IBM Datastage, UNIX Shell Scripting

 

Project IVShared Services OperationsJava Developer

 

Contribution

●       Contributed to servlet based application development.

●       Assisted in maintaining and updating the existing applications and modules.

●       Helped design form validation programs using HTML and JavaScript.

●       Contributed to the development of the client side and server side codes for external and internal Web applications.

●       Provided assistance and support for the programming team members as required.

●       Tested and deployed the full application on the Websphere application server.

●       Used Eclipse to develop the applications.

●       Involved in unit testing, integration testing.

Environment

Java, J2EE, Servlet, JSP, JavaScript, Struts, EJB, HTML,Log4J,Oracle 9i, Eclipse, Web Sphere 6.1