? Performed daily health checks to ensure proper functioning and availability of the Oracle EBS instances. ? Performed up gradation of EBS R12.1.3 to R12.2.4 on OEL 6.2 ? Managed DR site instances to ensure availability in case of production instance failure ? Performed Cloning, Patching on Oracle Apps R12. ? Familiar with the usage of the ad admin tools ? Performed Sysadmin activities ? Managed Oracle EBS connectivity ? Identified performance degradation of the Oracle applications and databases and optimized for expected maximum performance ? Performed code migration ? Configured and Managed Standby Databases for disaster recovery site ? Implemented Oracle E-Business Suite R12 on OEL 5.5 and OEL 6.2 ? Implemented two nodes Oracle RAC 11gR2 on OEL 5.5. ? Upgraded database from 10gR2 to 11gR2 on OEL 5.5 ? Good knowledge of database refreshes, schema refreshes, RMAN. ? Good knowledge and capable to prove my skills on Data warehousing concepts, Teradata and Data Stage based on the requirement. ? Prepared an outline document for the database upgrade from 11.2.0.3 to 11.2.0.4 ? Performed OS level ( Linux 6 64-bit ) pre-requisite checks ? Downloaded and extracted all the necessary patches and performed pre-patch analysis ? Performed pre-upgrade tasks for the DB upgrade ? Installed the 11.2.0.4 grid infrastructure, rdbms software and examples CD ? Applied 11.2.0.4 rdbms home patches ? Analyzed the pre-upgrade report and fixed the errors and warnings encountered ? Upgraded the database using dbua ? Executed post rdbms home patching sql scripts ? Generated and verified the EBS Technology Code level Checker (ETCC) report to analyze the patches required for the 12.2.4 interoperability ? Configured Autconfig on the upgraded 11.2.0.4 database ? Took database tech stack and database post upgrade backup at the necessary intervals ? Documented the complete database upgrade procedure ? Prepared an outline document for application upgrade from 12.1.3 to 12.2.4 ? Created the stage from the EBS 12.2 installation media ? Performed OS level ( Linux 6 64-bit ) pre-requisite checks ? Installed EBS 12.2 using Rapidwiz ? Ran the EBS 12.2 upgrade driver ? Configured the Application with database ? Applied the Critical Update Patches (CUPS) for EBS 12.2 ? Spliced the localization and custom product tops ? Applied Localization and Online patching enablement patches on the application ? Applied application technology stack patches ? Applied Update Pack for Release 12.2.4 ? Applied Online help patch ? Performed the post upgrade tasks ? Took Application and database backups at all the necessary intervals ? Documented the complete application upgrade procedure ? Fixed post upgrade issues reported by the testing and techno-functional teams