Senior DBA – TS/SCI w/ Poly | Cloud & On-Prem SQL/MariaDB

Cornerstone Defense LLC; Annapolis (MD); On-site; USD 170,000 - 200,000; Full time

Job summary

Cornerstone Defense is seeking a seasoned Database Administrator in Annapolis Junction, MD to maintain MS SQL Server, MariaDB and Oracle databases across on‑premise and cloud environments. Must have active TS/SCI w/ Polygraph to apply and extensive DBA experience.

You will automate tasks with PowerShell/Python, support performance tuning and backups, and collaborate with cross-functional teams to ensure mission-critical data reliability and security.

Qualifications

• Ten (10) years experience as a DBA in programs and contracts of similar scope, type, and complexity is required.
• Bachelor's degree in a technical discipline from an accredited college or university is required.
• Four (4) years of additional DBA experience may be substituted for a bachelor's degree.
• Compliance with DOD 8570.01-M with a minimum certification of IAT Level II. (CCNA - SECURITY, GICSP, GSEC, Security +, SSCP)

Responsibilities

• Maintain and troubleshoot Microsoft SQL Server, MariaDB, and Oracle databases.
• Manage databases across on-premise datacenters and cloud environments.
• Automate repetitive tasks with PowerShell and Python scripts.
• Collaborate with diverse teams to support mission-critical objectives.

Skills

MS SQL Server

MariaDB

Oracle databases

Indexing & performance management

Troubleshooting issues

Backup & recovery

Effective communications

Diverse team collaboration

Education

Bachelor's degree in a technical discipline

DOD 8570.01-M IAT II certifications (CCNA-SEC, GICSP, GSEC, Security+, SSCP)

Tools

PowerShell

Python scripting

AWS RDS

Commvault backup solutions

Windows Event Log Filtering

Windows Task Scheduler

Job description

Cornerstone Defense is seeking a seasoned Database Administrator in Annapolis Junction, MD to maintain MS SQL Server, MariaDB and Oracle databases across on‑premise and cloud environments. Must have active TS/SCI w/ Polygraph to apply and extensive DBA experience.

You will automate tasks with PowerShell/Python, support performance tuning and backups, and collaborate with cross-functional teams to ensure mission-critical data reliability and security.