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Cognizant
Oracle DBA
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Job Description
Cognizant is seeking an Oracle DBA for a full-time opportunity. Key Responsibilities Administer, monitor, and support Oracle Database environments (11g/12c/19c/21c). Manage and maintain Oracle GoldenGate replication (Uni-directional and Bi-directional environments). Administer and support Oracle Exadata infrastructure and databases. Configure, maintain, and troubleshoot Oracle RAC, ASM, and Data Guard environments. Perform database installation, upgrades, patching, migration, cloning, and refresh activities. Monitor database performance and troubleshoot performance bottlenecks using AWR, ASH, ADDM, and OEM. Manage backup and recovery strategies using RMAN and perform disaster recovery testing. Implement High Availability (HA) and Disaster Recovery (DR) solutions using Data Guard. Support production incidents, service requests, problem management, and root cause analysis. Work closely with application, infrastructure, and cloud teams during deployments and migrations. Automate routine DBA tasks using Shell Scripting and Oracle utilities. Ensure database security, compliance, and operational best practices.