I was working as Oracle DBAResponsibilities:-Installation and implementation of the Oracle 11g on Windows NT and Linux server.RAC Administration ASM Administration DATA GUARD Configuration Oracle SQL Query optimization.Refreshing the db using LATEST TemplateCloning the dbPerformance analysis of different database objects, AWR Analysis. Create various Stored Procedures and Database triggersImplement the automated Hot Backup scripts for the Daily full backup created in Corn Shell. Ongoing proactive database-level performance tuning, with a good working knowledge of Oracle internals. Implementing and maintaining database security (create and maintain users, roles and assign privileges) Database tuning, Application Tuning & performance monitoring. Fine tuning Initialization parameters, I/O, Memory and Operating System kernel parameters.Managed appropriate use of free space within tablespaces, reclaimed space whenever possible. Monitored system resource availability and responded to system memory and data issues. Monitored the production Oracle alert logs for database errors and system resource availability and responded to system memory and data issues. Advanced Backup and Recovery using Oracle’s RMAN software; used offline/online for recovery in a production environment. Implemented and maintained Oracle 10g/11g/12c/18c/19c Data Guard/standby databases for fail-over purposes. Propagation from primary to standby via automated scripts, and sometimes uses standby databases to immediately restore primary database.