Senior Oracle Exadata Engineered Systems DBA

Centroid Systems; Troy (MI); On-site; USD 130,000 - 180,000; Full time

Job summary

Centroid Systems is seeking an experienced Oracle Engineered Systems/Database Administrator to deliver ongoing Managed Services for Oracle Exadata environments. You will maintain availability, performance, and security while implementing automated processes and leading lifecycle improvements.

You will coordinate patch cycles, plan upgrades, and ensure compliance across the stack, including RAC, ASM, and Data Guard. The role requires a strong Unix/Linux background and hands-on OEM usage.

Qualifications

• 10+ years of experience as an Oracle Database Administrator.
• Hands-on experience with Oracle Exadata and Engineered Systems.
• Experience performing Exadata patching, upgrades, and migrations.
• Deep knowledge of Oracle Database 19c and 23ai.
• Experience with Oracle RAC, ASM, and Data Guard.
• Strong Unix/Linux administration and scripting in Shell or Python.
• Ability to lead technical discussions and drive continuous improvement in a Managed Services model.
• Willingness to work rotating shifts and 24x7 support.

Responsibilities

• Manage and administer Oracle Exadata Database Machines and engineered systems infrastructure in a hands-on technical capacity.
• Lead coordinated patch cycles across Exadata infrastructure, including Oracle Database, Grid Infrastructure, Exadata System Software, OS, storage cells, network fabric, and firmware.
• Plan and execute Exadata platform upgrades and migrations within the Managed Services change-management process.
• Execute rolling and non-rolling patching strategies to minimize downtime and ensure continuous system availability.
• Implement security and regulatory compliance standards across Exadata environments.
• Support audit readiness and compliance reporting with configurations, patch levels, controls, and change evidence.
• Manage the database and engineered-systems lifecycle through maintenance, consolidations, upgrades, migrations, capacity planning, and modernization.
• Implement and support high availability architectures using Oracle RAC, ASM, and Data Guard.
• Optimize system performance using Exadata features like Smart Scan and Hybrid Columnar Compression.
• Design, automate, and improve operational runbooks, monitoring practices, and service delivery standards with DevOps alignment.
• Perform advanced SQL tuning and troubleshooting across database and infrastructure layers.
• Utilize Oracle Enterprise Manager (OEM) for monitoring and patch orchestration.
• Continuously monitor service health and respond to alerts, incidents, and service requests per SLAs.
• Own assigned tickets through resolution with proper notes and escalation.
• Maintain current runbooks and SOPs for 24x7 service delivery.
• Provide technical leadership and mentor junior engineers and DBAs.
• Provide capacity planning and scalability support for enterprise environments.
• Work rotating shift schedule for 24x7 operation.

Skills

Oracle Exadata

Oracle Engineered Systems

Unix/Linux administration

Shell scripting

Python scripting

Tools

Oracle Enterprise Manager (OEM)

Job description

Centroid Systems is seeking an experienced Oracle Engineered Systems/Database Administrator to deliver ongoing Managed Services for Oracle Exadata environments. You will maintain availability, performance, and security while implementing automated processes and leading lifecycle improvements.

You will coordinate patch cycles, plan upgrades, and ensure compliance across the stack, including RAC, ASM, and Data Guard. The role requires a strong Unix/Linux background and hands-on OEM usage.