Security Clearance Jobs in California

Date Posted:2026-09-28Country:United States of America Location:US-MA-TEWKSBURY-TB1 ~ 50 Apple Hill Dr ~ ASSABET BLDG Position Role Type:Onsite U.S. Citizen, U.S. Person, or Immigration Status Requir...

ClearanceJobs, on behalf of our client, is seeking a Platform Engineer to help lead the deployment and operation of their product infrastructure in multiple federal environments. Your goal will be to ...

Job Number 3019 Standard Job Description Join the Lockheed Martin Aeronautics Field Sustainment Team. Our customers include both the U.S. Military and international governments and organizations. Our...

Job Number 20219 Standard Job Description Performs technical planning, system integration, verification and validation, cost and risk, and supportability and effectiveness analyses for total systems....

Job Number 20481 Manages more than one functional area in Quality, Reliability, Test, or Inspection. Responsible for coordinating subordinate employee recruitment, selection and training, performance...

Job Number 20533 Standard Job Description Join the Classified Cyber Security team as a Subject Matter Expert (SME) supporting Department of Defense (DoD) programs to ensure classified information sys...

MANTECH seeks a talented Configuration and Data Management Specialist to join our Configuration Management, Data Management, and Data Architecture (CM/DM/DA) team to support the NSSL Pro...

MANTECH seeks a motivated and detail-oriented Senior System Safety Engineer to join our team in El Segundo, CA.The Senior System Safety Engineer will help protect our national security while supportin...

Requisition Number: 30743 Required Travel: 51 - 75% Employment Type: Full Time/Hourly/Non-Exempt Anticipated Salary Range: $43,180.00 - $91,520.00 Security Clearance: Ability to Obtain Level of Exp...

Title:LCV NORTHCOM NTC: Ammunition Trades HelperAt KBR, we deliver science, technology and engineering solutions to governments and companies around the world. KBR employs approximately 37,000 people ...

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...

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 Description OverviewWorking across the globe, V2X builds smart solutions designed to integrate physical and digital infrastructure from base to battlefield. We bring 120 years of successful missio...

Job Description OverviewWorking across the globe, V2X builds smart solutions designed to integrate physical and digital infrastructure from base to battlefield. We bring 120 years of successful missio...

Overview Mechanical Engineer LOCATION: NASA Ames Research Center, Moffett Field, CA JOB STATUS: Full-time CLEARANCE: Ability to pass a Federal Background Check CERTIFICATION: TRAVEL: As Neede...

Description SAIC is looking for a Software Engineer to support the Sea Hawk Eye Emitter Library Development program at Point Mugu, California. Designs, develops, documents, tests and debugs applica...

Description SAIC is seeking an experienced Model Based Systems Engineer (MBSE) to join our Technical Engineering and Design Department in support of our United States Air Force customer. This positio...

Description SAIC is seeking a Senior Systems Administrator to support the Naval Information Warfare Center, Pacific (NIWC PAC) Naval Messaging CB ISEA. The work will be conducted ONSITE at the Naval...

Description SAIC is seeking an experienced Software Engineer, to serve as a subject matter expert (SME) in developing, deploying, and sustaining National Security Space systems. In this critical rol...

Description As the Data Scientist Principal, you will play a critical role in advancing mission-level Command & Control (C2) capabilities by leveraging your expertise in UCI schema and standardized, ...