Senior Oracle Cloud Infrastructure; OCI) Database Administrator

ECS is seeking a Senior Oracle Cloud Infrastructure (OCI) Database Administrator to work remotely. ECS is seeking a mission-driven Senior Oracle Cloud Infrastructure (OCI) Database Administrator to support high-consequence, mission-critical DHS systems. This role is designed for a hands‑on technical expert who excels in day‑to‑day administration, optimization, and security of cloud database environments, with a heavy emphasis on executing complex data transfers and system migrations.

This role is the primary custodian of database operations, ensuring seamless migration of legacy data workloads into OCI, managing data flows across secure networks, maintaining Oracle Exadata systems, and leveraging Oracle 26ai capabilities for database efficiency. Responsibilities also include ensuring maximum uptime, rigorous patch management, strict compliance with federal data security standards, plus the following:

• Manage and maintain production databases hosted on Oracle Exadata Cloud Service (ExaCS) and Dedicated Infrastructure, ensuring peak operational health.
• Perform daily administration of OCI database services, including monitoring, space management, and resource optimization within Autonomous Database (ADB) environments.
• Administer multitenant environments, managing the daily lifecycle, cloning, and resource allocation of Container Databases (CDB) and Pluggable Databases (PDB).
• Configure and maintain Autonomous Container Databases (ACD) to ensure stable, isolated operational environments for diverse agency workloads.

• Plan, test, and execute data migrations of legacy on‑premises Oracle workloads into OCI using tools like Oracle Data Pump, Transportable Table spaces, and Zero Downtime Migration (ZDM).
• Manage secure data transfers across different security domains and federal networks, ensuring compliance with strict DHS data transit policies.
• Support database upgrades and transitions to Oracle 26ai, managing the transfer of schemas, metadata, and table spaces with minimal disruption to operations.

• Conduct advanced performance tuning, diagnostics, and query optimization using AWR, ADDM, ASH, and execution plan analysis.
• Maintain High Availability (HA) and Disaster Recovery (DR) configurations using Active Data Guard at both the CDB and individual PDB levels.
• Oversee database backup and recovery operations using RMAN, OCI Object Storage, and localized backup policies to guarantee zero data loss.

• Execute continuous security patching (Quarterly CPUs/PSUs) and vulnerability remediation across all database environments to protect sensitive government data.
• Harden and maintain databases in strict compliance with DHS and DISA Security Technical Implementation Guides (STIGs).

Salary Range: $140,

• U.S. citizenship with ability to obtain the required public trust suitability (no dual citizenship).
• Holds a bachelor’s degree.
• A minimum of 6 years of relevant professional experience

• A minimum of 10+ years of hands‑on experience in Oracle Database Administration.
• At least 3+ years of direct operational experience administering databases within Oracle Cloud Infrastructure (OCI).
• Strong hands‑on experience migrating large‑scale database workloads into cloud environments.
• Demonstrated mastery of Oracle Multitenant architecture, including administering, patching, and managing PDBs within a CDB.
• Solid database administration experience on Oracle Exadata platforms.
• Experience with native Oracle migration and transfer utilities (Data Pump, Golden Gate, RMAN, ZDM).
• Prior experience administering databases within DHS HQ and/or its…