PAVAN KUMAR VASANA

Experience

• 

  Tata Consultancy Services

  Mar 2010 - now

  Responsible for all Administrative/Infra tasks including deploying applications troubleshooting and supporting WAS domain on AIX,Linux platformsSetting up SSL encryption between Web Browser and WebServer, WebServer Plug-in and WebSphere Application Server. Performance Tuning and monitoring using resource analyzer and Tivoli Performance viewer.Installation and upgradation of IBM web sphere Application servers & ND and applying websphere patches.Created, updated and reviewed PMRs and worked closely with the IBM PMR team and application teams for the resolution of the issues.Responsible for Continuous Integration and Continuous Delivery process implementation using Jenkins along with Python and Shell scripts to automate routine jobs. Implemented Continuous Integration using Jenkins and RLM. Engaged in planning, managing and delivering quality assurance and SPLUNK integration with current application and platformWorked directly with clients to understand the needs and design solutions using SPLUNKInstalling splunk forwarders, indexers and forwarding the data.Created dashboards, data models, indexes and deployment suite model.Created Dashboards and reports for Server/Infrastructure health and application monitoring Show less • Debugging issues by enabling traces at websphere plugin for routing and load balancing issues.• Debugging issues by enabling traces at websphere admin console for different issues like SSL connectivity, Protocol issues etc..• Debugging issues related to connectivity of applications with databases, mainframe and other backend systems.• Involved in creating irules and pool configured at F5 required for application flow.• Created, updated and reviewed PMRs and worked closely with the IBM PMR team and application teams for the resolution of the issues.• Utilized working knowledge of J2EE and Java development to troubleshoot technical issues error messages, software bugs, availability• MQ administration in AIX server on WAS 8 platform.• Involved in applications issues with MQ integration like cluster queue issues.• Installed, Configured and Administered WebSphere Application Server in Production environments• Applied latest fix pack and Patches to WebSphere Application Server.• Installed, administered and managed SSL certificates and key stores for WAS and IBM HTTP Server• Involved in configuring the Web Sphere load balancing; utilizing Web Sphere Workload Management that included horizontal scaling and vertical scaling.• Analyzed JAVA garbage collection, heap dumps and identified memory leaks using the appropriate tools as desired.• Engaged in planning, managing and delivering quality assurance and SPLUNK integration with current application and platform• Worked directly with clients to understand the needs and design solutions using SPLUNK• Installing splunk forwarders, indexers and forwarding the data.• Created dashboards, data models, indexes and deployment suite model.• Created Dashboards and reports for Server/Infrastructure health and application monitoring• Share 24x7 on-call duties with the Websphere team including rotating on-call schedules for multiple environments including production, performance test Show less • Responsible for maintenance of the WebSphere Application Servers, NDM and Web Servers on different AIX platforms and setting up the development, testing and staging environments for the ongoing application development.• Analysis and support on migration from WAS 4 to WAS 6 applications.• Debugging of Application code migration issues.• Installed EARs, WARs and configured application specific JVM settings, Web container parameters using the Admin Console and WSADMIN.• Writing shell scripts / WSADMIN script to improve performance• Involved in Configuring Websphere resources such as JVM heap settings, JDBC providers, JDBC data sources, connection pooling, Virtual Hosts, Global Security and SSL • Successful implementations of Work Load Management WLM using clustering techniques including Horizontal and Vertical Clustering for failover and backup/recovery processes• Created new Virtual Hosts, host aliases and done the generation, propagation of plug-in• Configured Web server plug-in to directing dynamic requests to application servers for load balance in clustered environment.• MQ administration in AIX server on WAS 6 platform.• Monitor, analyze and fine-tune application resources (enterprise beans, servlet etc.) and J2EE runtime parameters such as JVM heap size, memory usage, thread pools etc.• Involved in troubleshooting with IBM Heap Analyzer and IBM Thread Dump Analyzer to improve performance. Show less

  • Splunk Admin & AWS DevOps Engineer@Apple

    Mar 2019 - now

  • Splunk Admin and DevOps Engineer@Citi

    Jun 2017 - Feb 2019

  • Splunk Admin and DevOps Engineer@American Express

    May 2013 - May 2017

  • Websphere Administrator@American Express

    Mar 2010 - Apr 2013