• Information Systems Security Manager (ISSM)

    AeroVironment (Centreville, VA)
    … + Available to respond to alarms and emergencies after hours + Final Top Secret Security Clearance **Other Qualifications & Desired Competencies** + Experience ... range in complexity and size to include multi-platform computing ( Linux , Windows, VMWare), virtual environments, and mobile systems...other legally protected status._ **ITAR** US Citizenship is required. Secret or Top Secret clearance,… more
    AeroVironment (12/24/25)
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  • Cybersecurity Systems Analyst - Senior

    Amentum (Arlington, VA)
    …preferred * Technical background in networking, identity management, Microsoft and Linux operating systems , database, and mobility * Working knowledge ... and creating A&A packages. Performs assessment, compliance, and validation of IT systems to support the Cybersecurity program at USSOCOM, its Component Commands,… more
    Amentum (12/28/25)
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  • Cybersecurity Systems Analyst - Senior

    Amentum (Tampa, FL)
    …preferred * Technical background in networking, identity management, Microsoft and Linux operating systems , database, and mobility * Working knowledge ... and creating A&A packages. Performs assessment, compliance, and validation of IT systems to support the Cybersecurity program at USSOCOM, its Component Commands,… more
    Amentum (10/30/25)
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  • TS /SCI Field Service Engineer

    Insight Global (San Diego, CA)
    …Air Vehicle Operations and Ground station systems - Experience working in Linux and Windows environments to perform system administration duties - Experience ... Job Description Insight Global is seeking TS /SCI Field Service engineers to support an exciting, large mission for a large defense customer. This person will undergo… more
    Insight Global (12/03/25)
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  • System Engineer ( TS /SCI)- Senior or Mid…

    Vexterra Group (Bethesda, MD)
    …+ Experience with hardening Windows environments + Significant experience with system administration of server operating systems such as Microsoft Server (2012 ... Azure cloud services and the cloud ecosystem. + Experience operating and maintaining systems in a Linux environment + Certification relating to Microsoft… more
    Vexterra Group (01/13/26)
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  • Systems Engineer III

    Noblis (Chantilly, VA)
    …server environments, and operating systems with special emphasis on Top Secret classification enclaves. Your experience in Nutanix hyper-converged ... School diploma with 14 years of experience. + Active Top Secret ( TS ) clearance with...C2S) implementation with security controls for classified workloads + Linux and Windows operating systems with security… more
    Noblis (12/22/25)
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  • Virtual Simulation Lab Engineer/ Principal Virtual…

    Northrop Grumman (Melbourne, FL)
    …experience + Experience with systems administration of Windows and Linux systems + Must have an **active DoD Top Secret ** clearance with a ... RELOCATION ASSISTANCE: Relocation assistance may be available CLEARANCE TYPE: Top Secret TRAVEL: Yes, 10% of the Time **Description** At Northrop Grumman, our… more
    Northrop Grumman (12/02/25)
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  • Senior Unix System Administrator

    SMX (Patuxent River, MD)
    …Data Center (PRDC). This individual will work alongside a team of UNIX/ Linux Systems Administrators responsible for maintaining the integrity, availability, and ... security of mission-critical systems across Department of Defense (DoD) networks. The Senior...Must be able to obtain and maintain a DoD Top Secret clearance; Interim Secret more
    SMX (12/04/25)
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  • Field Systems Administrator

    Systems Technology Forum (San Diego, CA)
    …and Skills Required knowledge and years of experience Five years experience required * Windows/ Linux administration and RMF knowledge. * 5+ years of system ... and NAVWAR policies. * Install, configure, and maintain operating systems (Windows, Linux ) and associated applications across...Level II (Security + CE or equivalent). Clearance Requirement Secret (eligible for TS /SCI) Benefits and Perks… more
    Systems Technology Forum (11/21/25)
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  • Infrastructure Engineer/Administrator

    CACI International (Mclean, VA)
    …cloud and platform automation. + Monitoring and Maintenance + Install patches for Linux systems , and enterprise continuous monitoring applications such as Splunk ... Administer and maintain an existing an existing portfolio of linux systems include Rapid7 Nexpose Scanners, and...or OpenSearch. + 2+ years' experience with cloud and systems administration . + Demonstrated experience with scripting… more
    CACI International (12/26/25)
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