Oracle Engineered Systems DBA

Key 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, operating system, compute, storage cells, network fabric, and firmware.
• Plan and execute approved Exadata platform upgrades and migrations within the Managed Services change-management process, including implementation planning, testing, cutover, validation, documentation, and operational handoff.
• Execute rolling and non-rolling patching strategies to minimize downtime and ensure continuous system availability.
• Implement, maintain, and adhere to required security and regulatory compliance standards across Exadata environments, including maintaining compliance throughout patching, upgrades, migrations, and configuration changes.
• Support audit readiness and compliance reporting through accurate documentation of configurations, patch levels, security controls, remediation activities, and change control evidence.
• Manage the database and engineered-systems lifecycle through established Managed Services procedures, including maintenance, consolidation, upgrades, migrations, capacity planning, and platform modernization.
• Implement and support high availability architectures using Oracle RAC, ASM, and Active Data Guard.
• Optimize system performance by leveraging Exadata capabilities such as Smart Scan and Hybrid Columnar Compression.
• Design, improve, and automate repeatable operational processes, scripts, runbooks, monitoring practices, and service delivery standards in collaboration with Centroid’s DevOps team, aligned with Oracle and Centroid best practices for Oracle Engineered Systems.
• Perform advanced SQL tuning and troubleshooting across database and infrastructure layers.
• Utilize Oracle Enterprise Manager (OEM) for monitoring, patch orchestration, and operational management.
• Continuously monitor service health and respond to alerts, incidents, service requests, and problems in accordance with defined priorities, service-level agreements, and escalation procedures.
• Own assigned tickets through resolution, maintain accurate and timely work notes, communicate status and risks to the customer and internal teams, and ensure proper escalation of critical issues.
• Perform structured shift handoffs and maintain current runbooks, standard operating procedures, knowledge articles, configuration records, and support documentation to enable consistent 24x7 service delivery.
• Provide technical leadership within the senior engineering team by reviewing technical approaches, promoting operational consistency, and helping establish support standards for Oracle Engineered Systems.
• Mentor junior engineers and DBAs through knowledge sharing, peer review, troubleshooting guidance, documentation best practices, and hands-on coaching during incidents, changes, patching, and upgrade activities.
• Provide infrastructure planning, capacity management, and scalability support for enterprise environments.
• Work a rotating shift schedule as part of the U.S.-based team providing 24x7 support for the customer environment, including nights, weekends, holidays, and on-call coverage as assigned.

Required Qualifications

• 10+ years of experience as an Oracle Database Administrator.
• Experience delivering Managed Services or production operations support in a ticket-driven environment with defined service levels, escalation paths, change controls, and customer communication requirements.
• Strong hands-on expertise with Oracle Exadata and Oracle Engineered Systems.
• Demonstrated experience performing Exadata patching, upgrades, and migrations.
• Deep knowledge of Oracle Database 19c and 23ai.
• Hands-on experience with Oracle RAC, ASM, and Data Guard.
• Strong skills in Unix/Linux administration and scripting using Shell or Python.
• Solid understanding of compute, storage, networking, security, and system architecture.
• Experience implementing and maintaining technical controls in compliance-driven or regulated environments.
• Demonstrated ability to lead technical discussions, document repeatable practices, and drive continuous improvement in a Managed Services operating model.
• Ability and willingness to work assigned rotating shifts, including nights, weekends, holidays, and on-call coverage, as required to support a 24x7 operation.

Preferred Qualifications

• Oracle certifications, such as Oracle Database or Exadata Specialist certifications.
• Familiarity with Oracle Enterprise Manager for Engineered Systems.
• Experience supporting audit evidence, security compliance reporting, and remediation activities.
• Experience supporting large Government Agencies