Sr. Oracle Database Administrator

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.

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.

Requirements

Required Skills & Qualifications 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). Bachelor's 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.