Top Secret / SCI Clearance Jobs

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...

ClearanceJobs is aiding their government contracting customer in search of an experienced Cloud Engineer. You will work at the center of the DoD's multi-cloud enterprise and coordinate directly with C...

The application window is expected to close on: 10/29/2026The successful applicant will be performing work on US Government classified environments, and therefore, must be a U.S. Person (i.e., U.S. ci...

The application window is expected to close on: 10/29/2026Job posting may be removed earlier if the position is filled or if a sufficient number of applications are received. The successful applicant...

The application window is expected to close on: 10/29/2026The successful applicant will be performing work on US Government classified environments, and therefore, must be a U.S. Person (i.e., U.S. ci...

The application window is expected to close on: 10/29/2026The successful applicant will be performing work on US Government classified environments, and therefore, must be a U.S. Person (i.e., U.S. ci...

The application window is expected to close on: 10/29/2026The successful applicant will be performing work on US Government classified environments, and therefore, must be a U.S. Person (i.e., U.S. ci...

Deliver simple solutions to complex problems as VTOC Operations at Marathon TS. Here, you'll tailor cutting-edge solutions to the unique requirements of our clients. With a career in application devel...

Project/Implementation Manager TS/SCI Clearance Required Springfield, VA or St. Louis, MO ($155,000 - $215,000) Marathon TS is seeking an experienced Project/Implementation Manager to support one of ...

PostgreSQL Database Architect Springfield, VA and St. Louis, MO TS/SCI Clearance Required ($145,000 - $200,000) Marathon TS is seeking an experienced PostgreSQL Database Architect to support one of o...

Linux Systems Engineer, Sr. Location: Springfield, VA or St. Louis, MO Clearance: Active TS/SCI ($145,000 - 200,000) Marathon TS is seeking an Senior Linux Systems Engineer to support one of our Inte...

IEC Tier-3 Engineer Location: Springfield, VA Clearance: Active TS/SCI ($185,000 - 225,000) Marathon TS is seeking a driven and experienced IEC Tier-3 Engineer to support one of our Intelligence cu...

Senior DevOps Engineer Location: Springfield, VA or St. Louis, MO Clearance: Active TS/SCI ($225,000 - 270,000) Marathon TS is seeking an experienced Senior DevOps Engineer to support one of our Inte...

Information Assurance Security Engineer Location: Springfield, VA or Arnold, MO TS/SCI Clearance Required ($155,000 - $205,000) Marathon TS is seeking an experienced Information Assurance Security En...

Razor is expanding its network of independent recruiting partners and is seeking experienced cleared recruiters with established relationships in the TS/SCI and polygraph community. This is not a trad...

About the Position: This position is in the Defense Civilian Intelligence Personnel System (DCIPS). Employees occupying DCIPS positions are in the Excepted Service and must adhere to U.S. Code, Title ...

MTSI is seeking a highly skilled Test Engineer to support an advanced air platform program at Wright Patterson Air Force Base in Dayton, OH. Job Duties: • Advise project leads and engineers on t...

Overview:Modern Technology Solutions, Inc. (MTSI) is seeking a highly experienced Flight Test Engineer to provide oversight of developmental and operations test and evaluation activities in support of...

Modern Technology Solutions Incorporated (MTSI) is seeking Senior Systems Engineer (Kill Chains) to lead technical projects for OSD Strategic Capabilities Office (SCO). Provide analytical and engineer...

MTSI is seeking a Senior Systems Administrator - COMSEC Specialist whose primary function will be to manage KMI operations, implement remote management, and support a parent account and its geographic...