Security Clearance Jobs in Gaithersburg, MD

L3Harris is dedicated to recruiting and developing high-performing talent who are passionate about what they do. Our employees are unified in a shared dedication to our customers' mission and quest fo...

The Geospatial Enterprise Open Data Store (GEODS) contract provides integration, design, development, and sustainment for data services in support of the Federal Government. The Product Manager is res...

At MITRE, your passion fuels work that impacts our nation and improves lives. This is where your skills strengthen national security, cybersecurity, health, transportation, and citizen services. We're...

Job Category: Contract ServicesRequisition Number: STATI007420Posting Details Posted: August 11, 2026 Full-Time Locations Showing 1 location Depart of Energy19901 ...

Zachary Piper Solutions is seeking a Scrum Master / Sr. Software Developer to support a leading federal technology and defense contractor delivering mission-critical software and modernization soluti...

OverviewAllied Universal®, North America's leading security and facility services company, offers rewarding careers that provide you a sense of purpose. While working in a dynamic, welcoming, and ...

R-00194366Description Leidos is seeking Systems Integration and Test Engineers to join the Air Traffic Business Area within the Homeland Sector, supporting the development of next-generation flight se...

R-00182104Description Leidos is seeking Senior Systems Engineers to join the Air Traffic Business Area within the Homeland Sector, supporting the development of next-generation flight service and air ...

Zachary Piper Solutions is seeking a Senior AI Software Developer to support the development and modernization of real-time, mission-critical software systems in Gaithersburg, MD . The Senior AI Softw...

Zachary Piper Solutions is seeking a Lead DevSecOps Engineer to support the design, development, and optimization of secure cloud infrastructure and CI/CD environments in Gaithersburg, MD . The Lead D...

Zachary Piper Solutions is seeking a Senior Software Developer - Scrum Master to support the development and modernization of mission-critical, cloud-native software systems in Gaithersburg, MD . The ...

Zachary Piper Solutions is seeking a Senior Systems Engineer / Product Owner to support the development and modernization of mission-critical, cloud-based software systems in Gaithersburg, MD . The Se...

R-00194307Description Leidos is seeking a Test Engineer to join the Air Traffic Business Area within the Homeland Sector, supporting the development of the Leidos Common Automation Platform (L-CAP). L...

R-00194222Description Leidos is seeking a Deputy Program Manager for the Air Traffic Business Area within the Homeland Sector, supporting Leidos Flight Service. Leidos Flight Service provides the 24/7...

Our client, a leading Government Systems Integrator, is in need of 3 Senior DevSecOps Engineers for initial 12 month contract opportunities. Candidates should be located in either Gaithersburg, MD or ...

Computer Technologies Consultants, Inc. (CTC, Inc.) is seeking a Computer Scientist to support the National Institute of Standards and Technology (NIST) in Gaithersburg, MD. With offices in Washingto...

Zachary Piper Solutions is seeking a Senior Software Developer - Scrum Master to support a company focused on modernizing critical national aviation systems through the development of a next-generatio...

Zachary Piper Solutions is seeking a Senior Systems Engineer/Product Owner to support a company focused on developing and modernizing next-generation air traffic management and automation platforms fo...

At MITRE, your passion fuels work that impacts our nation and improves lives. This is where your skills strengthen national security, cybersecurity, health, transportation, and citizen services. We're...

R-00182064Description Leidos is seeking Lead Software Developers to join the Air Traffic Business Area within the Homeland Sector, supporting the development of next-generation flight service and air ...