• System Administrator (Linux) - US…

    CGI Technologies and Solutions, Inc. (Fairfax, VA)
    ** System Administrator (Linux) - US Citizenship Required** **Category:** Cyber Security **Main location:** United States, Virginia, Fairfax **Alternate ... Skills: Strong ability to troubleshoot Windows and Linux operating systems . * Security and Compliance: Familiarity with...Duty (EOD) clearance * 5-7 years of experience Unix system administration * Proficiency in Linux systems more
    CGI Technologies and Solutions, Inc. (12/11/25)
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  • Weapon System Manager

    UIC Government Services and the Bowhead Family of Companies (Aberdeen, MD)
    …requirements, export controls, disclosure of classified and controlled unclassified information , and system -specific release requirements for sensitive ... + Familiarity with various C5ISR (Command, Control, Computers, Communications, Cyber , Intelligence, Surveillance and Reconnaissance) Systems equipment, such… more
    UIC Government Services and the Bowhead Family of Companies (11/26/25)
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  • Senior Embedded Software Engineer, Amazon Leo…

    Amazon (San Diego, CA)
    …reviews, and designing defensive measures to protect satellite systems from cyber threats * Design and implement robust, security -hardened software and ... contributions to system design and architecture of complex systems (including architecture patterns, reliability, scaling, and security considerations)… more
    Amazon (11/21/25)
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  • Senior Security Manager

    Leidos (Columbia, MD)
    **Description** Leidos Security Operations is seeking a proven, experienced security professional for a Senior Security Manager, to lead a multi-functional ... team and manage a portfolio of programs supporting our Cyber & Analytics Business Area supporting our Intelligence Community...is an incredible opportunity to apply your leadership and security experience in leading a team of security more
    Leidos (11/18/25)
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  • Security Architect / Engineer - Zero Trust…

    WaveStrong (Sacramento, CA)
    …or Cybersecurity from an accredited University. DESIRABLE QUALIFICATIONS: + ISC2 Certified Information Systems Security Professional (CISSP), ISC2 Certified ... Information Security Manager (CISM), ISACA Certified in Risk and Information Systems Control (CRISC), CompTIA Certified Advanced Security Practitioner… more
    WaveStrong (12/13/25)
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  • Sr. UNIX Systems Engineer

    CGI Technologies and Solutions, Inc. (Radford, VA)
    …f) Three or more years' experience in patch management with understanding how to apply security updates to systems via YUM and RPM. g) Three or more years' ... **Sr. UNIX Systems Engineer** **Category:** Infrastructure/Cloud **Main location:** United States,...Guides (STIG), Security Requirement Guides (SRG), RMF, Security Control Assessor-Validator (SCA-V), and Cyber Operational… more
    CGI Technologies and Solutions, Inc. (01/07/26)
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  • Fully Qualified Validator - Top Secret Clearance |

    Cambridge International Systems Inc (Norfolk, VA)
    …across OPTEVFOR systems and infrastructure. + Collaborate directly with OPTEVFOR's Information System Security Manager (ISSM), ISSEs, and other ... Assessor (Work Role 612) in alignment with the DoD Cyber Workforce Framework (DCWF). + Conduct independent validations of...shape the future of secure cloud computing for national security . About Cambridge International Systems At Cambridge,… more
    Cambridge International Systems Inc (12/04/25)
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  • Lead, Systems Engineer - ELINT

    L3Harris (Greenville, TX)
    …the space, air, land, sea and cyber domains in the interest of national security . Job Title: Lead, Systems Engineer - ELINT Job Code: 30649 Job Location: ... and assessing corrections. + Familiarity with networking technologies, to include Security + certification. + Familiarity with RC135 Communications Systems . +… more
    L3Harris (11/01/25)
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  • Network System Admin

    KBR (Lexington Park, MD)
    …& Compliance - Implement Technical Implementation Guides (STIGs) for network and operating systems security . Support IATT and ATO package preparation to ensure ... and effective solutions. With a strong ethical framework, KBR prioritizes data security , privacy, and responsible information management to ensure mission… more
    KBR (12/18/25)
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  • Senior Principal Systems Engineer (Onsite)

    RTX Corporation (El Segundo, CA)
    …prior experience in cryptographic products and designs and certification processes + Cyber security knowledge including Risk Management Framework + Knowledgeable ... CA or Fullerton, CA. **A current/active US Secret DoD security clearance is required.** The Secure Information ...test cryptographic modules and system . + Create system level requirements, architectures, security designs, and… more
    RTX Corporation (01/16/26)
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