Sr. Oracle Database Administrator

CDIT is seeking an experienced Senior Oracle Database Administrator (DBA) to support a highly secure, mission-critical environment. This role will be responsible for the administration, availability, performance, and resiliency of enterprise Oracle database environments. The ideal candidate will bring extensive hands-on experience with Oracle 19c, Data Guard, Data Guard Broker, FSFO, RMAN, and Linux, with the ability to independently troubleshoot and support complex database environments. Responsibilities

• Administer and support Oracle 19c databases in a Data Guard configuration consisting of one primary and two standby databases.
• Manage and maintain Oracle Data Guard using Data Guard Broker. Configure, monitor, and troubleshoot Fast-Start Failover (FSFO), including multiple observers across distributed environments.
• Perform routine and emergency Oracle patching (RU/CPU), including planning, testing, deployment, and post-patch validation.
• Monitor database health, performance, and availability using Oracle Enterprise Manager (OEM).
• Execute and validate switchover and failover operations, including primary database reinstatement. Troubleshoot Data Guard issues, including transport/apply lag, archive gaps, and broker-related errors.
• Maintain backup and recovery processes using RMAN, including FRA and Flashback Database. Support database migrations, performance analysis, and tuning using tools such as AWR and ASH.
• Perform Linux administration and maintain shell scripts supporting database operations. Support database security and highly available enterprise database environments.

• 10+ years of Oracle Database Administration experience supporting enterprise environments.
• Strong hands-on experience with Oracle 19c on Linux.
• Expertise with Oracle Data Guard, Data Guard Broker, and FSFO.
• Experience with RMAN backup and recovery and Oracle RAC.
• Experience with Oracle patching and lifecycle management.
• Working knowledge of Oracle Enterprise Manager (OEM).
• Experience with database migration, troubleshooting, performance monitoring, and tuning.
• Proficiency in Linux administration and shell scripting.
• Current CompTIA Security+ CE certification.
• Active Top Secret/SCI clearance with Lifestyle Polygraph (LS Poly).
• Bachelorx27s degree in Computer Science or a related field, or equivalent professional experience.
• Strong communication skills and ability to work independently. Preferred Skills & Qualifications
• Current or recent SYS3 PRIVAC level.
• Experience supporting multi-site FSFO observer configurations.
• Experience with Oracle Database Vault and/or Label Security.
• Experience with Oracle Enterprise Manager Cloud Control.
• Experience with database security and data migration.
• Experience with AWR/ASH performance tuning and analysis.
• Experience with Oracle Flashback Database and FRA.
• Experience supporting highly secure or classified environments. Duty Hours: TBD based on mission and operational needs.

CDIT is a technology solutions company supporting government and national security customers with secure, mission-focused IT solutions. We partner with highly skilled technical professionals to support complex environments where reliability, security, and operational excellence are critical. Our team values technical expertise, collaboration, and a commitment to supporting the missions of our customers.