Job Description Responsibilities: * Support and administer Oracle RDBMS environments, including Oracle Grid Infrastructure, ASM, Data Guard, and Oracle Enterprise Manager Cloud Control. * Provide database administration across multiple platforms: Oracle, MSSQL, PostgreSQL, MySQL, and NoSQL systems (MarkLogic, MongoDB, DynamoDB). * Perform routine backup, restore, and disaster recovery operations using RMAN, snapshots, and archive log management. * Troubleshoot system, database, hardware, and ne…