• 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 ... with the network service provider to develop and maintain detailed network architecture diagrams. + Evaluate system performance, identify areas for… more
    ManTech (12/13/25)
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  • Principal Cyber Security Engineer

    ManTech (Chantilly, VA)
    … + Knowledge of Windows and Linux systems , general operating system security practices, TCP/IP networking, 802.1x, and network security concepts + IAT ... work alongside cyber experts to develop solutions that enhance network compliance and security posture across DoD systems... network compliance and security posture across DoD systems . **Responsibilities include but are not limited to:** +… more
    ManTech (12/13/25)
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  • Deskside Administrator I

    Epsilon, Inc (Arlington, VA)
    …and software issues at user workstations. + Troubleshoot desktop/laptop hardware, operating systems (Windows, macOS), and applications (Microsoft Office, ... and offering adaptable enterprise infrastructure solutions. Our services, ranging from systems administration and network engineering to Information security and… more
    Epsilon, Inc (11/22/25)
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  • Cyber Security Implementation Engineer

    CACI International (Springfield, VA)
    …cloud-based cybersecurity infrastructure and applications running on Windows and Linux operating systems + Engineer and implement cybersecurity solutions ... compute, storage, and transport. + Expertise in Windows and Linux server operating systems . + Excellent writing and communication skills, including the… more
    CACI International (11/14/25)
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  • Test Engineer

    Nightwing (Sterling, VA)
    …to validate installation + Conduct software compatibility tests with programs, hardware, operating systems , or network environments + Design or ... security testing. The TE coordinates and conducts tests on all services and systems /enhancements and versions/releases to ensure that the system is functional… more
    Nightwing (09/26/25)
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  • Software Developer (Journeyman) Future Need…

    ICF (Arlington, VA)
    …using technologies provided by AWS, Google, or Azure + Experience with Linux operating system + Experience with monitoring/diagnosing activity at the host, ... associated with analyzing databases, source code, hosts, middleware, application, Local Area Network (LAN), and Internet networks across Open System Interconnect… more
    ICF (09/30/25)
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  • Security Incident Analyst (SiA) - TS/SCI…

    General Dynamics Information Technology (Norfolk, VA)
    …a Polygraph. + Preferred Skills: Splunk, Proofpoint, Fidelis, Solera, Windows, and Linux Operating Systems . Location: On Customer Site + Bolling AFB, Washington ... (IT) assets and DIA personnel to the DIA Computer Network Defense Center (DCNDC) and Information Systems ...SECURITY INCIDENT ANALYST WILL MAKE AN IMPACT + Manage network computer and system security incidents relating… more
    General Dynamics Information Technology (11/18/25)
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  • Senior Principal Cyber Security Engineer

    ManTech (Chantilly, VA)
    … + Knowledge of Windows and Linux systems , general operating system security practices, TCP/IP networking, 802.1x, and network security concepts + An ... products such as firewalls, IPS, Anti-Virus solutions, application firewalls, high availability solutions, network management systems , and virtual systems more
    ManTech (12/13/25)
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  • Dean|Fluor Critical Facility Manager -Vienna

    M. C. Dean (Vienna, VA)
    …and control the complex mechanical, electrical, life safety and building control systems . + Ensure compliance with facility operating procedures, processes, work ... and fire/life safety equipment within the data center is operating at peak efficiency. The manager serves as an...and trained operators that monitor, control, and update all system control applications. + Responsible for assisting in the… more
    M. C. Dean (11/26/25)
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  • Senior Software Developer

    ManTech (Herndon, VA)
    …(DMV) area** . In this role you will research, design, develop, and test operating systems -level software, compilers, and network distribution software. You ... and formulates and analyzes software requirements and may design embedded systems software. **Responsibilities include, but are not limited to:** + Leads… more
    ManTech (11/18/25)
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