Oracle Engineered Systems DBA

Centroid Systems is seeking a highly experienced Oracle Engineered Systems/DBA consultant to support and manage mission-critical database environments built on Oracle Exadata and related engineered systems . This role is responsible for ensuring high availability, optimal performance, and operational compliance across large-scale enterprise platforms.

Job Type: Full-Time Employee Location: 100% Remote

Key Responsibilities

• Manage and administer Oracle Exadata Database Machines and engineered systems infrastructure
• Lead quarterly Exadata patch cycles (RU/RUR) across Database, Grid Infrastructure, OS, and firmware layers
• Execute rolling and non-rolling patching strategies to minimize downtime and ensure continuous system availability
• Maintain adherence to enterprise patch compliance standards , ensuring alignment with Oracle best practices and internal security policies
• Support audit readiness and regulatory compliance through documentation of patch levels, remediation activities, and change control
• Oversee database lifecycle management , including consolidation, upgrades, and platform modernization initiatives
• Implement and support high availability architectures using Oracle RAC, ASM, and Active Data Guard
• Optimize system performance leveraging Exadata capabilities such as Smart Scan and Hybrid Columnar Compression
• Perform advanced SQL tuning and troubleshooting across database and infrastructure layers
• Utilize Oracle Enterprise Manager (OEM) for monitoring, patch orchestration, and operational management
• Provide infrastructure planning, capacity management , and scalability support for enterprise environments
• Participate in on-call support for mission-critical production systems

Required Qualifications

• 5+ years of experience as an Oracle Database Administrator
• Strong expertise with Oracle Exadata and Engineered Systems
• Deep knowledge of Oracle Database 19c / 23ai
• Hands-on experience with RAC, ASM, and Data Guard
• Strong skills in Unix/Linux administration and scripting (Shell or Python)
• Solid understanding of storage, networking, and system architecture

Preferred Qualifications

• Oracle certifications ( Oracle Database, Exadata Specialist )
• Familiarity with Enterprise Manager for Engineered Systems
• Experience in compliance-driven or regulated environments