Oracle Engineered Systems DBA

Centroid Systems, Inc.•Troy, MI

10d

About The Position

Centroid Systems is seeking a highly experienced, hands-on Oracle Engineered Systems / Database Administrator to deliver ongoing Managed Services support for mission-critical database environments built on Oracle Exadata and related engineered systems. The role is part of a small team of senior engineers responsible for automating, improving, and operationalizing Oracle and Centroid best practices for managing and maintaining Oracle Engineered Systems. The position maintains service availability, performance, security, operational compliance, and customer service levels through proactive monitoring, incident response, request fulfillment, problem management, change execution, patching, upgrades, and lifecycle support. The DBA provides technical leadership, contributes to repeatable operational processes and service standards, and mentors junior engineers and DBAs. The role is on a rotating shift schedule as part of a U.S.-based team providing 24x7 customer support, including nights, weekends, holidays, and assigned on-call coverage. Travel is up to 10%.

Requirements

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 Unix/Linux administration and Shell or Python scripting skills.
Solid understanding of compute, storage, networking, security, and system architecture.
Experience implementing and maintaining technical controls in compliance-driven or regulated environments.
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 for 24x7 operations.

Nice To Haves

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.

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 through 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 maintain continuous system availability.
Implement, maintain, and adhere to security and regulatory compliance standards across Exadata environments, including during patching, upgrades, migrations, and configuration changes.
Support audit readiness and compliance reporting by documenting configurations, patch levels, security controls, remediation activities, and change-control evidence.
Manage database and engineered-systems lifecycle activities 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 using Exadata capabilities such as Smart Scan and Hybrid Columnar Compression.
Design, improve, and automate operational processes, scripts, runbooks, monitoring practices, and service delivery standards in collaboration with Centroid’s DevOps team.
Perform advanced SQL tuning and troubleshooting across database and infrastructure layers.
Use Oracle Enterprise Manager (OEM) for monitoring, patch orchestration, and operational management.
Monitor service health and respond to alerts, incidents, service requests, and problems according to priorities, service-level agreements, and escalation procedures.
Own assigned tickets through resolution, maintain timely and accurate work notes, communicate status and risks, and escalate critical issues appropriately.
Perform structured shift handoffs and maintain runbooks, standard operating procedures, knowledge articles, configuration records, and support documentation for consistent 24x7 service delivery.
Provide technical leadership 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 practices, and hands-on coaching during incidents and technical work.
Provide infrastructure planning, capacity management, and scalability support for enterprise environments.
Work an assigned rotating shift schedule, including nights, weekends, holidays, and on-call coverage, to support a 24x7 customer environment.