Oracle Engineered Systems DBA

Centroid Systems, Inc.Troy, MI
Remote

About The Position

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.

Requirements

  • 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

Nice To Haves

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

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
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