Top Secret / SCI Clearance Jobs

Senior Systems Engineer (TS/SCI Cleared) Who We Are ThinkTek LLC is a fast-growing Certified SBA 8(a) and Service-Disabled Veteran-Owned Small Business (SDVOSB) specializing in management and technolo...

On behalf of our Federal Contracting client, ClearanceJobs Talent Solutions Team is seeking a Senior Backend (ETL) Engineer to be a key contributor to both user-facing product launches as well as plat...

Systems EngineerReston, VA9/16/2025...

System Engineer 6San Antonio, TX7/15/2026...

Develop capabilities to shift from the current manual system security evaluation and authorization process to a new model that emphasizes automation, streamlined processes and approvals, continuous mo...

In a world of possibilities, pursue one with endless opportunities. Imagine Next! At Parsons, you can imagine a career where you thrive, work with exceptional people, and be yourself. Guided by our ...

Job Number 2445 Standard Job Description Plans, conducts, and coordinates software development activities. Designs, develops, documents, tests, and debugs software that contains logical and mathemati...

Job Number 2375 Standard Job Description Plans, conducts, and coordinates software development activities. Designs, develops, documents, tests, and debugs software that contains logical and mathemati...

Job Number 766 Standard Job Description ***This position is contingent upon contract award to Lockheed Martin. Estimated award date is currently AUGUST 2026. Any job offers extended to chosen candida...

MANTECH seeks a motivated, career-focused Project Close Out Manager to join our team in Chantilly, VA. In this role, you will ensure all project deliverables, documentation, financial reconciliations,...

MANTECH seeks a motivated, career and customer-oriented Installation Technician to join our team in Herndon, VA. In this hands-on role, you will support the deployment and installation of secure netwo...

MANTECH seeks a motivated, career and customer-oriented Network Deployment Engineer to join our team in Chantilly, VA . This is an onsite position. Responsibilities include but are not limited...

OverviewAbout M.C. DeanM.C. Dean is Building Intelligence®. We design, build, operate, and maintain cyber-physical solutions for the nation's most mission-critical facilities, secure environments,...

Overview About M.C. Dean M.C. Dean is Building Intelligence. We design, build, operate, and maintain cyber-physical solutions for the nation's most mission-critical facilities, secure environments, co...

OverviewSystems Planning and Analysis, Inc. (SPA) delivers high-impact, technical solutions to complex national security issues. With over 50 years of business expertise and consistent growth, we are ...

OverviewSystems Planning and Analysis, Inc. (SPA) delivers high-impact, technical solutions to complex national security issues. With over 50 years of business expertise and consistent growth, we are ...

OverviewSystems Planning and Analysis, Inc. (SPA) delivers high-impact, technical solutions to complex national security issues. With over 50 years of business expertise and consistent growth, we are ...

OverviewSystems Planning and Analysis, Inc. (SPA) delivers high-impact, technical solutions to complex national security issues. With over 50 years of business expertise and consistent growth, we are ...

OverviewSystems Planning and Analysis, Inc. (SPA) delivers high-impact, technical solutions to complex national security issues. With over 50 years of business expertise and consistent growth, we are ...

OverviewSystems Planning and Analysis, Inc. (SPA) delivers high-impact, technical solutions to complex national security issues. With over 50 years of business expertise and consistent growth, we are ...