• SIGINT Systems Administrator (Low Band…

    CACI International (Hampton, VA)
    …also provide system administration for assigned infrastructure and establish and maintain system security . You will also apply security patches and ... Systems Administrator (Low Band Journeyman) Job Category: Information Technology Time Type: Full time Minimum Clearance Required...operating system upgrades to ensure the security and integrity of the technical environment, support new… more
    CACI International (12/15/25)
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  • Senior Systems Administrator (Unix/Linux)

    TekSynap (Dahlgren, VA)
    …in Unix and/or Linux system administration of networks and software systems , including system backup and recovery; security management and library ... Level III certification requirements. + Strong experience with TCP/IP, network security tools (eg, firewalls, vulnerability scanners), system performance tuning,… more
    TekSynap (10/31/25)
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  • Physical Security Specialist (Industrial…

    Huntington Ingalls Industries (Alexandria, VA)
    …in managing complex security projects and implementing large-scale physical security systems . Strong analytical, organizational, and communication skills. * ... related to physical security . Manage contractor and vendor relationships for security -related services and system installations. * Serve as a subject matter… more
    Huntington Ingalls Industries (12/04/25)
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  • Software System Engineer

    Kratos Defense & Security Solutions, Inc. (Herndon, VA)
    …issues with configuration of system hardware, software, networks, operating and system management systems + Design and run system load/stress ... Monitor & Control, RF Communications, Virtualization of Satellite Ground System or systems engineering + Coding experience...+ Excellent written and verbal skills to explain technical information to managers and system users +… more
    Kratos Defense & Security Solutions, Inc. (12/16/25)
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  • Senior Cyber Security Engineer

    ManTech (Chantilly, VA)
    …, and virtualized systems . + Strong understanding of Windows and Linux systems , operating system security principles, TCP/IP networking, 802.1x, and core ... **MANTECH** seeks a motivated, career and customer-oriented **Senior Cyber Security Engineer** to join our team in **Chantilly, VA.** This role supports a… more
    ManTech (12/13/25)
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  • Security Officer - Dispatch Desk Specialist

    Allied Universal (Mclean, VA)
    …and communications as required by site procedures. + Assist in monitoring surveillance systems , alarms, and other security -related technology to help to deter ... Allied Universal(R), North America's leading security and facility services company, offers rewarding careers that provide you a sense of purpose. While working in a… more
    Allied Universal (01/15/26)
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  • Specialist, Software Architect Systems

    L3Harris (Ashburn, VA)
    …the space, air, land, sea and cyber domains in the interest of national security . Job Title: Specialist, Software Architect Systems Engineer Job Code: 31759 Job ... Job Schedule: 9/80 Regular Job Description: As a Specialist, Software Systems Engineer, you will be responsible for developing disruptive, next-generation… more
    L3Harris (12/05/25)
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  • Lead, Systems Engineering (UAV Propulsion)

    L3Harris (Ashburn, VA)
    …the space, air, land, sea and cyber domains in the interest of national security . Job Title: Lead, Systems Engineering Job Code: 30533 Job Location: Ashburn, ... system integration and engineering test efforts of propulsion systems + Develops or champions new systems ,...years of prior related experience + Active DoD Secret security clearance + System level design experience… more
    L3Harris (10/29/25)
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  • Cyber Security Engineering Specialist III

    William C Brown Inc (Springfield, VA)
    …in the Joint Incident Management System (JIMS), Incident Case Management System (ICMS), and/or other authorized reporting systems as directed + Develops, ... Cyber Security Engineering Specialist III EOE Statement We are...Documents actions taken and analysis in the authorized ticketing system to a level of detail where the actions… more
    William C Brown Inc (12/19/25)
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  • Security Officer - Dispatch with Secret…

    Allied Universal (Mclean, VA)
    …the security organization and the wider business to understand information requirements, deliver timely analysis, and present key insights to internal ... Allied Universal(R), North America's leading security and facility services company, offers rewarding careers...platforms and applications + Monitor access control and CCTV systems for alarms and see to appropriate response +… more
    Allied Universal (11/27/25)
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