Administer and support Oracle middleware and database environments (DEV/QA/UAT/Prod), including WebLogic, Fusion Middleware, OHS, and Oracle Database 19c/23c. Perform deployments, patching, performance tuning, backup/recovery, security configuration, and provide L2/L3 24x7 production support. Support integrations, REST/SOAP services, RAC/Data Guard environments, and compliance activities.