Security Clearance Jobs in Thornton, CO

About PeratonPeraton is a next-generation national security company that drives missions of consequence spanning the globe and extending to the farthest reaches of the galaxy. As the world's leading m...

Cybercore is looking for a Tier 1 System AdministratorCore Responsibilities:Respond to user inquiries via phone, email, chat, or ticketing systemsLog and track support requests using help desk ticketi...

Application deadline: Applications will be accepted on an ongoing basisThis position requires that the candidate selected be a US Citizen and currently possess and maintain an active Top Secret securi...

Application deadline: Nov 9, 2026This position requires that the candidate selected be a US Citizen and currently possess and maintain an active Top Secret security clearance with SCI eligibility or h...

Application deadline: Nov 8, 2026This position requires that the candidate selected be a US Citizen and obtain and maintain an active TS/SCI security clearance.The Amazon Web Services Professional Ser...

Advanced Space | Full-time | Onsite We’re going to the Moon. Think you’ve got what it takes?    About the Role  At Advanced Space, we're enabling humanity's return to the Moon and build...