Sr. SQL Engineer Security Clearance

SQL Engineer |

Location:

Gaithersburg, Maryland;
Alexandria, VA;
Chantilly, VA;
Aurora, CO;
St. Louis, MO;
Tucson, AZ | Clearance:
Top Secret/SCI with ability to obtain a Polygraph |

Schedule:

Full Time | Travel:
No | Remote:
No.

We are Ennoble First. The people supporting and securing some of the most complex government, defense, and intelligence projects across the country. We ensure today is safe and tomorrow is smarter. Our work has meaning and impact on the world around us, but also on us, and that's important. Ennoble First is your place. You make it your own by embracing autonomy, seizing opportunity, and being trusted to deliver your best every day.

We think. We act. We deliver.

This position supports a newly awarded five‑year effort delivering modern, mission‑critical software capabilities to a national security customer. The program leverages Agile development, Dev Sec Ops  practices, and cloud‑native technologies to build and enhance scalable enterprise solutions supporting critical mission operations. Engineers on this effort will work with cross‑functional teams to design, develop, and deploy impactful capabilities while helping shape the architecture and technical direction of a long‑term, high‑visibility program.

We are seeking a SQL Engineer to support a high‑visibility, data‑driven application that powers analytics and reporting across the organization. This role focuses on developing high‑performance SQL queries, optimizing data workflows, and ensuring the accuracy and reliability of datasets used for mission‑critical decision‑making. The ideal candidate has strong experience working with large‑scale data environments, performance tuning, and supporting analytics or reporting pipelines.

This individual will work closely with engineering teams and stakeholders to deliver scalable, efficient, and reliable data solutions.

• Object‑Oriented Programming:
  Design, develop, test, troubleshoot, and maintain scalable software applications using object‑oriented design principles.
• REST API Development:
  Implement and maintain RESTful services to support application functionality and integrations.
• Database Development:
  Develop and optimize SQL queries; contribute to database schema updates and performance improvements.
• Linux Environments:
  Develop, deploy, and troubleshoot applications within Linux‑based environments.
• System Troubleshooting:
  Diagnose and resolve technical issues spanning application and database layers.
• Solution Design
  
  Collaboration:
  
  Contribute to technical design discussions and support implementation of approved architectures.
• Cross‑Functional
  
  Collaboration:
  
  Partner with engineers and stakeholders to translate requirements into effective technical solutions.
• Code Quality & Best Practices:
  Participate in code reviews and support adherence to established engineering standards.

• Bachelor’s degree with 8‑12 years of experience, or Master’s with 6‑10 years of experience
• Active TS/SCI with the ability to successfully pass a Polygraph
• Expert‑level SQL skills, including:
  • Complex joins across large datasets
  • Query optimization and execution plan analysis
  • Aggregations, subqueries, and window functions
  • Strong experience with relational databases (Postgre
    
    SQL, MySQL, Oracle, or similar)
• Experience working with large‑scale data supporting analytics/reporting
• Proficiency in Linux environments
• Ability to work independently and solve complex data challenges

• Experience with Grafana or similar visualization tools
• Python for data manipulation (pandas, scripting, automation)
• Experience with materialized views, caching strategies, or query acceleration techniques

$130,000 - $160,000

This employer participates in E‑Verify. E‑Verify is an Internet‑based system that allows businesses to determine the eligibility of their employees to work in the United States. This business uses E‑Verify in its hiring practices to achieve a lawful workforce. E‑Verify is a registered trademark of the U.S. Department of Homeland Security.

Ennoble First is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or veteran status. Ennoble First participates in E‑Verify.