Security Clearance Jobs in Saint Louis, MO

REQUIRED: Active TS/SCI with Full Scope PolygraphLOCATION: Full-time, onsite in Chantilly, VA We are seeking a mission‑driven Software Engineer with deep experience building, integrating, and analyzin...

Shield AI is a venture-backed defense-tech company with the mission of protecting service members and civilians with intelligent systems. Its products include Hivemind autonomy software, V-BAT and X-B...

Job DescriptionAt Boeing, we innovate and collaborate to make the world a better place. We're committed to fostering an environment for every teammate that's welcoming, respectful and inclusive, with ...

Job DescriptionAt Boeing, we innovate and collaborate to make the world a better place. We're committed to fostering an environment for every teammate that's welcoming, respectful and inclusive, with ...

Job DescriptionAt Boeing, we innovate and collaborate to make the world a better place. We're committed to fostering an environment for every teammate that's welcoming, respectful and inclusive, with ...

Job DescriptionAt Boeing, we innovate and collaborate to make the world a better place. We're committed to fostering an environment for every teammate that's welcoming, respectful and inclusive, with ...

Job DescriptionAt Boeing, we innovate and collaborate to make the world a better place. We're committed to fostering an environment for every teammate that's welcoming, respectful and inclusive, with ...

Job DescriptionAt Boeing, we innovate and collaborate to make the world a better place. We're committed to fostering an environment for every teammate that's welcoming, respectful and inclusive, with ...

Job DescriptionAt Boeing, we innovate and collaborate to make the world a better place. We're committed to fostering an environment for every teammate that's welcoming, respectful and inclusive, with ...

Senior Data ScientistSpringfield, VA or St. Louis, MOActive TS/SCIAt Bcore, our strength comes from how we deliver impact to the mission. Whether it’s architecting critical IT solutions, producing act...

OverviewCompany Overview: Allied Universal®, North America's leading security and facility services company, offers rewarding careers that provide you a sense of purpose. While working in a dynam...

Job Category: IT/TechnicalRequisition Number: MISSI0023021099 Consultant opportunity, though full-time may be consideredTitan Technologies is seeking an experienced Mission Solution Architect to lead ...

R-00193740Description Contracts Manager – National SolutionsAre you ready to apply your contracts expertise to some of the Intelligence Community's most critical missions? Leidos is seeking ...

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 Title: Crypto Engineer T3Job Category: Information TechnologyTime Type: Full timeMinimum Clearance Required to Start: TS/SCIEmployee Type: RegularPercentage of Travel Required: Up to 10%Type of Tr...

Job Title: Senior COTS DeveloperJob Category: Information TechnologyTime Type: Full timeMinimum Clearance Required to Start: Top SecretEmployee Type: RegularPercentage of Travel Required: NoneType of ...

Job Title: Cybersecurity Engineer - Network Security ToolsJob Category: Information TechnologyTime Type: Full timeMinimum Clearance Required to Start: TS/SCIEmployee Type: RegularPercentage of Travel ...

Why WWT? World Wide Technology (WWT) strives to make a new world happen. WWT's work benefits clients and partners as much as it does its people and community across the globe. Founded in 1990, WWT b...

External Header Source: External Applicants Only Open: 2026-10-01 Closed: 2026-10-17 Band: 03 Location: St Louis, MO, Springfield, VA Cover Letter Applicants are not required to submit a cover letter ...

Great Hill Solutions, LLC is part of the Seneca Nation Group (SNG) portfolio of companies. SNG is Seneca Holdings' federal government contracting business that meets mission-critical needs of federal ...