ORACLE DATABASE ADMINISTRATOR

We are seeking an Oracle Database Administrator (DBA) Subject Matter Expert to support mission-critical systems in secure, highly regulated environments. This role is responsible for the full lifecycle administration, performance optimization, security hardening, and sustainment of large-scale Oracle database environments supporting DoD, federal, and enterprise platforms. The ideal candidate brings deep hands-on experience across Oracle versions, strong scripting and automation skills, and a proven track record supporting high-availability systems in 24x7 operational settings. Core Responsibilities

Administer, monitor, and sustain multiple Oracle database environments (10g, 11g, 12c) across Linux and Windows platforms Perform daily database health checks, performance monitoring, and capacity planning to ensure system stability and availability Apply Oracle patches and updates (CPU/PSU) using OPatch, including pre- and post-patch validation Design, implement, and maintain backup and recovery strategies using RMAN, including hot, cold, and supplemental backups Support high-availability and disaster-recovery architectures, including knowledge of RAC and Data Guard Execute database refreshes, clones, and data migrations using Oracle Data Pump, SQL Loader, and custom scripting Tune database and SQL performance using AWR, ADDM, SQL Tuning Advisor, and Oracle Enterprise Manager (OEM) Implement and maintain database security, user access controls, roles, and profiles in compliance with DISA STIGs Investigate and resolve Tier III / Tier IV database incidents related to performance, replication, security, and application integration Support application teams by modifying database structures, supporting releases, and troubleshooting runtime issues Develop and maintain UNIX shell scripts and automation tools to support monitoring, maintenance, and disaster-recovery procedures Produce and maintain SOPs, technical documentation, and disaster-recovery runbooks

Enterprise & Cleared Environment Support

Operate within strict ITSM and change-management frameworks (Remedy/JIRA or equivalent) Support systems subject to compliance requirements including DISA STIGs, security audits, and operational readiness checks Collaborate with cybersecurity, infrastructure, and application teams to remediate findings and maintain accreditation Provide on-call or rotating support for 24x7 mission systems as required

10+ years of experience as a Database Administrator supporting enterprise or federal systems Deep hands-on expertise administering Oracle databases (10g-12c) in production environments Strong experience with performance tuning, backup/recovery, patching, and security hardening Proficiency with UNIX/Linux environments and shell scripting for automation and monitoring Experience working in secured or regulated environments supporting DoD, DHS, or other federal missions Strong analytical, troubleshooting, and documentation skills