Sr.Oracle Database Administrator

Cognisol; St. Louis (MO); On-site; USD 89,000 - 122,000; Full time

Job summary

Cognisol is seeking a highly skilled Senior Oracle Database Administrator to ensure the performance and reliability of critical database environments. You will manage Oracle databases, including Exadata systems, optimize performance, execute upgrades, and ensure data integrity and security. Ideal candidates will have extensive experience in database administration and a track record of success in high-availability environments.

Qualifications

• 8+ years of hands-on experience in Oracle database administration.
• Experience with Exadata systems for at least 2 years.
• Proven track record of performance tuning in high-availability environments.

Responsibilities

• Oversee installation, configuration, and maintenance of Oracle databases.
• Plan and execute database patching and upgrades.
• Manage and support Oracle Exadata systems.

Skills

Oracle RAC

ASM

Data Guard

RMAN

OEM Cloud Control

Shell Scripting

PL/SQL

Linux/Unix Administration

Education

Oracle Certified Professional (OCP)

Oracle Exadata Implementation Specialist

Oracle Certified Expert (OCE)

ITIL Foundation

Job description

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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.

Key Responsibilities:

1. Oracle Database Management Oversee the installation, configuration, administration, and maintenance of Oracle databases across production, test, and development environments.

2. Patch Management & Upgrades Plan and execute Oracle database patching, version upgrades, and migrations while ensuring minimal downtime and adherence to compliance standards.

3. Exadata Administration Manage and support Oracle Exadata systems, including cell servers, storage servers, and Infiniband networks, ensuring optimal performance and availability.

4. Performance Tuning Monitor, diagnose, and resolve performance issues through in-depth analysis, query optimization, and resource management.

5. Backup & Recovery Design, implement, and test robust backup and recovery strategies using RMAN and Data Guard to ensure data integrity and disaster readiness.

6. Security & Compliance Ensure database security, access control, and compliance with organizational policies and industry standards (e.g., SOX, GDPR).

7. Automation & Scripting Develop and maintain scripts for automation of routine tasks, monitoring, and reporting using Shell, PL/SQL, and other tools.

8. High Availability & DR Design and manage high availability (HA) and disaster recovery (DR) solutions, including RAC, Data Guard, and GoldenGate as applicable.

9. Monitoring & Alerting Implement and manage monitoring tools to proactively identify and address database performance and availability issues.

10. 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.

Seniority level

• Seniority level

  Not Applicable

Employment type

• Employment type

  Contract

Job function

• Job function

  Information Technology

• Industries

  IT Services and IT Consulting

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