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Sr.Oracle Database Administrator

Job in St. Louis, Saint Louis, St. Louis city, Missouri, 63105, USA
Listing for: Cognisol Global Solutions LLC
Full Time position
Listed on 2025-12-31
Job specializations:
  • IT/Tech
    Database Administrator, Data Engineer
Job Description & How to Apply Below
Location: St. Louis

About the job Sr.Oracle Database Administrator

We are seeking a highly skilled and experienced Senior Oracle Database Administrator (DBA) to join our IT infrastructure team.

The ideal candidate will be responsible for the administration, performance, and reliability of mission-critical Oracle database environments, including Exadata systems.

Responsibilities
  • Oracle Database Management:
    Oversee the installation, configuration, administration, and maintenance of Oracle databases across production, test, and development environments.
  • Patch Management & Upgrades:
    Plan and execute Oracle database patching, version upgrades, and migrations while ensuring minimal downtime and adherence to compliance standards.
  • Exadata Administration:
    Manage and support Oracle Exadata systems, including cell servers, storage servers, and Infiniband networks, ensuring optimal performance and availability.
  • Performance Tuning:
    Monitor, diagnose, and resolve performance issues through in-depth analysis, query optimization, and resource management.
  • Backup & Recovery:
    Design, implement, and test robust backup and recovery strategies using RMAN and Data Guard to ensure data integrity and disaster readiness.
  • Security & Compliance:
    Ensure database security, access control, and compliance with organizational policies and industry standards (e.g., SOX, GDPR).
  • Automation & Scripting:
    Develop and maintain scripts for automation of routine tasks, monitoring, and reporting using Shell, PL/SQL, and other tools.
  • High Availability & DR:
    Design and manage high availability (HA) and disaster recovery (DR) solutions, including RAC, Data Guard, and Golden Gate as applicable.
  • Monitoring & Alerting:
    Implement and manage monitoring tools to proactively identify and address database performance and availability issues.
  • Collaboration & Mentoring:
    Work closely with application teams, infrastructure teams, and vendors; provide guidance and mentorship to junior DBAs.
  • Experience

    8+ years of hands-on experience in Oracle database administration, including at least 2 years with Exadata systems.

    Proven track record of performance tuning and managing high-availability database environments.

    Certifications (preferred)
    • Oracle Certified Professional (OCP) Oracle Database 19c or later
    • Oracle Exadata Database Machine Implementation Specialist
    • Oracle Certified Expert (OCE) Real Application Clusters and Grid Infrastructure Administration
    • ITIL Foundation or equivalent (for understanding of IT service management processes)
    Technical Skills
    • Strong expertise in Oracle RAC, ASM, Data Guard, RMAN, OEM Cloud Control.
    • Proficient in Shell scripting, PL/SQL, and Linux/Unix administration.
    • Familiarity with Oracle Cloud Infrastructure (OCI) or other cloud platforms is a plus.
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