Database Admin​/Engineer Data Librarian

Leidos is seeking a Lead Database Administrator/Engineer to serve as the senior technical authority for the on-premises Oracle database environment supporting (GEOINT product dissemination and expurgation processing.) This role will lead the architecture, administration, security, performance, availability, and lifecycle management of mission-critical Oracle databases. That includes spatial data stores that enable accurate, timely dissemination of product packages to internal and foreign partners.

The ideal candidate will have deep expertise in Oracle Database engineering, high availability and disaster recovery, patching and upgrades, database security hardening, and automation. They must also have the leadership ability to guide a team of database and software professionals.

This position requires a highly collaborative leader who can engage across multiple offices, set database standards and best practices, mentor junior and mid-level staff, and ensure the database environment meets operational, security, and compliance requirements. Experience operating across multiple security domains is highly desirable. The role also requires a strong public‑speaking presence: delivering briefings, advising leadership on database strategy and risk, and acting as the face to the customer for database‑related technical discussions and stakeholder engagements.

• Serve as the lead administrator and subject matter expert for the on-premises Oracle database environment, including production, test, and development instances.
• Design, build, configure, and maintain Oracle Database environments.
• Administer and optimize spatial data stores, including Oracle Spatial and  objects, and ArcSDE / enterprise geodatabase integration, to support GEOINT content accuracy and dissemination.
• Plan and execute database upgrades, migrations, consolidations, and capacity expansion.
• Understand Linux/Unix operating systems (Oracle Linux / RHEL) at the database-host level, including file systems, kernel parameters, storage, permissions, and cron scheduling.

• Plan, test, and apply quarterly Oracle Release Updates (RUs) and Critical Patch Updates (CPUs) for the database, Grid Infrastructure, and related components.
• Develop implementation, validation, and rollback plans and execute them through formal change‑management processes during scheduled maintenance windows.
• Implement and maintain the DISA Oracle Database STIG and organizational security baselines.
• Configure and manage Unified Auditing, Transparent Data Encryption (TDE), role‑based access, and least‑privilege models. Manage privileged database accounts in line with separation‑of‑duties requirements.
• Remediate vulnerability scan findings and support RMF/ATO assessments, continuous monitoring, and audit activities.
• Stage and apply patches in restricted or air‑gapped environments following approved data transfer procedures.

• Perform advanced performance tuning and diagnostics.
• Monitor database health, capacity, and availability.
• Develop and maintain automation for routine database tasks, including health checks, patch verification, backup validation, and account management. Use shell scripting, SQL, Python, and/or Ansible.
• Support and optimize database constructs, schemas, stored procedures, and ingest/validation processes that feed automated expurgation and dissemination workflows.
• Lead root‑cause analysis for database incidents and outages, and implement corrective and preventive actions.

• Work across multiple offices and security domains (NIPRNet, SIPRNet, JWICS) to ensure consistent database configurations, secure…