• Security Specialist - SSO

    Advantage SCI (Reston, VA)
    …of visitors. * Performing various badging functions and updating personnel security systems . * Scheduling and conducting SCI indoctrinations/debriefs, and ... Job Descriptions: Position Title: Security SpecialistReports To: The Customer and Project ManagerClearance...related documents. * Processing Personal Electronic Devices (PED) and systems access requests. * Badging activities, to include the… more
    Advantage SCI (12/03/25)
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  • Senior Software Engineer (Top Secret…

    KBR (Colorado Springs, CO)
    …and tools to support a broad range of applications + Work with DevOps and Cyber Security teams to ensure software development efforts align with the objectives ... Title: Senior Software Engineer (Top Secret Security Clearance Required) Belong. Connect. Grow. with KBR!...and Education: MS degree in Computer Science or Information Systems . Other degrees will be considered with relevant work… more
    KBR (11/07/25)
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  • F5 Security Engineer - Active TS/SCI…

    ENS Solutions (Washington, DC)
    …area of Identity, Credential and Access Management (ICAM), Software Development, Cyber and Network Security , System Engineering, Program/Project Management, IT ... to automate configuration of a large number of network security devices distributed across multiple data centers + Propose...as well as upgrading, monitoring, testing and servicing the systems as needed + Demonstrates knowledge of a broad… more
    ENS Solutions (10/21/25)
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  • Systems Engineer - IT - Secret Clearance…

    Lockheed Martin (King Of Prussia, PA)
    …harden and design Windows and Linux \(Red Hat\) and networking systems with Security personnel to protect against ever changing Cyber Threats Please Note: \- ... Doing: As part of Lockheed Martin Rotary & Mission Systems business area, our team supports multiple software applications...This position requires a government security clearance; you must be a US Citizen for… more
    Lockheed Martin (12/20/25)
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  • Linux Systems Administrator - TS/SCI Poly

    Parsons Corporation (Centreville, VA)
    …of open-source software and utilities. + Experience managing FreeIPA or LDAP-based systems . + Background in network security , intrusion detection, and server ... 75 years of experience, Parsons is uniquely qualified to deliver cyber /converged security , technology-based intellectual property, and other innovative services… more
    Parsons Corporation (12/20/25)
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  • Senior Systems Administrator 10k sign…

    Leidos (Annapolis Junction, MD)
    …and exciting opportunity for a Senior Systems Administrator in our **National Security Sector's (NSS) Cyber & Analytics Business Area (CABA)** . Our talented ... and much more. **Join us and make a difference in National** ** Security !** As a Senior Systems Administrator you will play a vital role in maintaining the… more
    Leidos (11/15/25)
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  • Sr. Systems Administrator - Secret…

    Lockheed Martin (King Of Prussia, PA)
    …and harden Windows and Linux \(Red Hat\) and networking systems with Security personnel to protect against Cyber Threats Please Note: \-This position ... Doing** As part of Lockheed Martin Rotary & Mission Systems business area, our team supports multiple software applications...requires a government security clearance; you must be a US Citizen for… more
    Lockheed Martin (10/29/25)
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  • Senior Systems Administrator (Linux)

    Amentum (Waimea, HI)
    …LogRhythm, and MDE + Experience with DoD systems and infrastructure + Knowledge of Cyber Security Methods and Techniques + Knowledge of DoD IT systems , ... environments across Navy networks. + Implement and maintain RMF security controls and ensure systems are compliant...and maintain RMF security controls and ensure systems are compliant with DISA STIGs and DoD cybersecurity… more
    Amentum (12/24/25)
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  • Sr. Principal Systems Architect (Onsite)

    RTX Corporation (San Jose, CA)
    …Person, or Immigration Status Requirements:** Active and transferable US government issued security clearance is required prior to start date.​ US citizenship is ... required, as only US citizens are eligible for a security clearance​ ** Security Clearance:** TS/SCI - Current...Applied Signal Technology (AST) is seeking a **Senior Principal Systems Architect** who strives for excellence and has a… more
    RTX Corporation (12/18/25)
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  • Systems Administrator

    Amentum (Warrenton, VA)
    **Your Impact:** Are you interested in using your skills to help shape the Cyber , Security , & Intel space? If so, look no further. Amentum is seeking a ** ... patches * Implement robust backup strategies and disaster recover solutions * Ensure systems comply with organizational policies and security standards * Manage… more
    Amentum (12/10/25)
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