Database Engineer/Administrator

Description

Job Description:

Leidos is seeking a Senior Oracle Database Administrator (DBA) to support mission-critical database, systems, and infrastructure operations at a Government customer site at Springfield, VA. The selected candidate will serve as a database subject matter expert, lead database efforts, and work independently to meet critical mission objectives in a secure, high-pressure enterprise environment.

The role requires deep hands-on experience with Oracle 19c, enterprise infrastructure, secure database deployments, and DoD-compliant systems. The DBA will collaborate with system administrators, storage administrators, network administrators, mission application teams, internal stakeholders, and external customers to resolve complex issues that span the application, database, operating system, network, and storage layers.

Primary Responsibilities:

• Administer, monitor, and support Oracle 19c databases across production, development, and test environments.
• Lead database activities, including planning, assigning, tracking, documenting, and reporting task progress.
• Install, configure, maintain, document, and administer Oracle databases, mission software, and Oracle-related products to ensure optimum performance and system availability.
• Perform Oracle database installations on Linux and Windows, upgrades, patching, Release Updates, Critical Patch Updates, and fresh deployments.
• Manage and configure Oracle ASM and Oracle Grid Infrastructure.
• Install and maintain secure database connectivity using TCPS with SSL/TLS encryption.
• Migrate data, schema, and code from source databases while ensuring data quality and integrity.
• Analyze issues holistically from the application tier through the database, operating system, network, and storage layers.
• Monitor, troubleshoot, and tune database performance using AWR, ASH, ADDM, execution plans, indexing strategies, and SQL optimization techniques.
• Perform daily operations and proactive monitoring, including space usage, log and dump file cleanup, database health checks, error correction, and performance reporting.
• Troubleshoot database, system, connectivity, listener, SQL*Net, TCPS certificate, DNS, firewall, and backup-related incidents.
• Perform backup and recovery using RMAN and support disaster recovery strategies.
• Implement and maintain DoD STIG compliance and system hardening for Oracle databases, Red Hat Enterprise Linux, and Windows Server environments.
• Remediate vulnerability findings identified through ACAS, SCAP, Nessus, and related security scans.
• Administer database security, including user roles and privileges, profiles and password policies, auditing, and compliance controls.
• Support Oracle Spatial and geospatial data implementations.
• Administer and optimize storage integration with NetApp storage systems and support virtualized environments using VMware.
• Use Oracle tools such as SQL*Plus, SQL Developer, and Oracle Enterprise Manager Grid Control or Cloud Control.
• Maintain documentation, standard operating procedures, security artifacts, and technical guidance for customer and contract stakeholders.
• Work effectively across IT functional boundaries and directly with customers to resolve complex database, systems, and infrastructure issues.

Basic Qualifications:

• Active TS/SCI clearance with the ability to obtain a Polygraph.
• Security+ certification or ability to meet DoD 8570 compliance requirements.
• Bachelor's degree in an IT-related field and 12-15+ years of DBA experience, or Master's degree and 10+ years of DBA experience.
• Extensive hands-on experience with Oracle Database 19c or higher.
• Strong expertise with Oracle ASM and Oracle Grid Infrastructure.
• Experience administering Oracle databases on Linux, including RHEL/CentOS 7 and 8, and Windows Server 2019 Enterprise.
• Experience implementing DoD STIGs and performing database and operating system hardening.
• Knowledge of vulnerability remediation processes and experience addressing ACAS, SCAP, Nessus, or similar scan findings.
• Strong database performance tuning, troubleshooting, backup, recovery, and optimization skills.
• Working knowledge of Linux and Windows-based systems.
• Strong understanding of networking concepts related to Oracle environments.
• Experience working independently with limited supervision while also collaborating effectively in a team environment.
• Detail-oriented and comfortable multitasking in a fast-paced, mission-critical environment.

Preferred Qualifications:

• Oracle OCP 19c certification.
• Experience with Oracle RAC and Data Guard.
• Experience with PostgreSQL databases.
• Experience with Microsoft Windows Server 2019 and Microsoft Windows 10.
• Experience with Oracle Spatial and geospatial data.
• Experience with NetApp storage systems and VMware virtualization.
• Familiarity with RMF, ATO processes, and Authority to Operate documentation.
• Experience in classified or high-security DoD environments.
• Scripting skills using Bash, PowerShell, or similar tools.
• Prior experience with NGA or support to mission partners.

Soft Skills:

• Highly self-motivated and able to work under pressure with minimal supervision.
• Strong analytical and problem-solving skills.
• Strong written and verbal communication skills.
• Security-first mindset with strong attention to detail.

If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo - because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 - and moving faster than anyone else dares.

For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

The Leidos pay range for this job level is a general guideline onlyand not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

About Leidos

Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $16.7 billion for the fiscal year ended January 3, 2025. For more information, visit

Pay and Benefits

Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available at

Securing Your Data

Beware of fake employment opportunities using Leidos' name. Leidos will never ask you to provide payment-related information during any part of the employment application process (i.e., ask you for money), nor will Leidos ever advance money as part of the hiring process (i.e., send you a check or money order before doing any work). Further, Leidos will only communicate with you through emails that are generated by the Leidos.com automated system - never from free commercial services (e.g., Gmail, Yahoo, Hotmail) or via WhatsApp, Telegram, etc. If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at View email address on click.appcast.io.

If you believe you are the victim of a scam, contact your local law enforcement and report the incident to the U.S. Federal Trade Commission.

Commitment to Non-Discrimination

All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.

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