• Network Engineer - Senior

    Noblis (Chantilly, VA)
    Responsibilities As a Network Engineer Senior , you will provide expert leadership in designing, implementing, and managing sophisticated network systems and ... You will architect secure network infrastructures that meet the highest security standards while enabling mission-critical operations. Your expertise will ensure the… more
    Noblis (12/05/25)
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  • Systems Engineer - Senior

    Noblis (Chantilly, VA)
    Responsibilities As a Senior Systems Engineer , you will provide leadership in planning, designing, and implementing sophisticated additions and changes to network ... across highly sensitive environments. You will ensure the reliability, security , and robustness of mission-critical infrastructure while meeting the stringent… more
    Noblis (11/20/25)
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  • Senior Network Engineer

    Parsons Corporation (Quantico, VA)
    …redefine what's possible. **Job Description:** Parsons is looking for an amazingly talented ** Senior Network Engineer** to join our team! **What You'll Be Doing:** + ... + Bachelor's degree and typically 10+ years of related professional experience. An advanced degree may be preferred at...at this level. + DoD IAT Level II (eg, Security + CE, Network+ CE, or CCNA Security )… more
    Parsons Corporation (11/15/25)
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  • OPTEVFOR - Senior Navy Qualified Validator…

    Rigid Tactical (Norfolk, VA)
    …is actively seeking a Senior Navy Qualified Validator (NQV) / RMF, Security Control Assessor (SCA) to join our mission-focused team as Key Personnel on critical ... it is a vital, independent validation function that directly ensures the operational security posture of US Navy IT systems. The successful candidate will apply… more
    Rigid Tactical (11/01/25)
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  • Senior Cybersecurity Engineer (Networking)

    Amentum (Richmond, VA)
    …allies to address their most significant and complex challenges in science, security and sustainability. Headquartered in Virginia, we have more than 53,000 ... countries across all 7 continents. Amentum is seeking a ** Senior Cybersecurity Engineer with focus on Networking** . This...expertise in multiple areas of cybersecurity to include Cloud Security and Endpoint Security . **US Citizenship is… more
    Amentum (10/24/25)
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  • Senior Cybersecurity Analyst

    Guidehouse (Mclean, VA)
    …threat scenarios, reference architectures, and governance frameworks. + Experience in professional services consultancy and federal cyber security industry. + ... to include but not limited to: + Monitor computer networks for security issues, including investigating security breaches and other cybersecurity incidents.… more
    Guidehouse (09/28/25)
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  • Senior Systems Engineer - Enterprise IT…

    M. C. Dean (Vienna, VA)
    …secure cloud-hosted and on-premises environments. As part of the team, the ** Senior Systems Engineer** 's responsibilities will include (but will not be limited ... **Researching available technology options** and their respective functional, performance, security , and interoperability characteristics; test and evaluate technology components;… more
    M. C. Dean (11/28/25)
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  • Senior Space Acquisition Program Element…

    KBR (Arlington, VA)
    Title: Senior Space Acquisition Program Element Monitor (PEM) Support Analyst Belong. Connect. Grow. with KBR! KBR's National Security Solutions team provides ... and advanced technology solutions to our customers in the intelligence and national security communities. In this position, your work will have a profound impact on… more
    KBR (11/14/25)
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  • Senior Systems Administrator (Unix/Linux)

    EPS Corporation (Dahlgren, VA)
    Senior Systems Administrator (Unix/Linux) - (758) Share this job as a link in your status update to LinkedIn. Job Title Senior Systems Administrator (Unix/Linux) ... ideal candidate will bring deep expertise in Unix/Linux administration, network security , and performance optimization, ensuring system reliability, security ,… more
    EPS Corporation (11/13/25)
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  • Senior Software Engineer

    KBR (Chantilly, VA)
    Title: Senior Software Engineer Belong. Connect. Grow. with KBR! KBR's National Security Solutions team provides high-end engineering and advanced technology ... solutions to our customers in the intelligence and national security communities. In this position, your work will have...the future of space defense. KBR is seeking a Senior Software Engineer to join our team. The candidate… more
    KBR (10/21/25)
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