• Principal Cyber Security Engineer

    ManTech (Chantilly, VA)
    systems , and virtual systems + Knowledge of Windows and Linux systems , general operating system security practices, TCP/IP networking, 802.1x, and network ... **MANTECH** seeks a motivated, career and customer-oriented **Principal Cyber Security Engineer ** to join our team in **Chantilly, VA.** This role supports the… more
    ManTech (12/13/25)
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  • Software Engineer TS SCI

    Northrop Grumman (Stafford, VA)
    …employees are not only part of history, they're making history. Northrop Grumman, Defense Systems , is seeking a software engineer to work on the Whisper programs ... systems worldwide. Rf Signal equipment and RF microwave engineer to provide our customer with 24 x 7...CI polygraph + Information Assurance Technical Workforce (IAT) level II or higher (ie Security +) + Compliance/Vulnerability Monitoring… more
    Northrop Grumman (12/05/25)
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  • Senior Cloud Engineer Architect Azure

    Leidos (Fort Belvoir, VA)
    …Leidos Digital Modernization is seeking an experienced **_Senior Cloud Engineer Architect (Azure)_** to support large-scale migration and operations on ... mission partners operating in CONUS and OCONUS locations. The Senior Cloud Engineer /Architect (Azure) supports design of a new, modernized updated and upgraded… more
    Leidos (11/15/25)
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  • Cyber Security Implementation Engineer

    CACI International (Springfield, VA)
    …cybersecurity infrastructure and applications running on Windows and Linux operating systems + Engineer and implement cybersecurity solutions leveraging cloud ... Cyber Security Implementation Engineer Job Category: Engineering Time Type: Full time...Assurance Technical Officer (IAT) Level III and Information Assurance System Architecture and Engineering Specialist (IASAE) Level II more
    CACI International (11/14/25)
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  • Cybersecurity Engineer I

    TekSynap (Virginia Beach, VA)
    **Responsibilities & Qualifications** **RESPONSIBILITIES** + Support the system hardening of DoD systems through secure configuration and implementation of best ... directives. + Applying patches and resolving vulnerabilities on Linux and Windows operating systems . **Overview** We are seeking a Cybersecurity Engineer I to… more
    TekSynap (12/30/25)
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  • Network Engineer

    Leidos (Arlington, VA)
    …FUTURE ROLE** Leidos' Digital Modernization sector is seeking a Network Engineer to be responsible for the design, migration, implementation, enhancement, ... optimization, and maintenance of infrastructure On GSM-O II . **This position will be 100% on-site.** **Primary Responsibilities:** + Provide intermediate to… more
    Leidos (01/02/26)
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  • VPN - DMZ and WAN Network Engineer

    Leidos (Norfolk, VA)
    …(Virtual Private Network), WAN (Wide Area Network) & DMZ (Demilitarized Zone) Network Engineer located in Norfolk, VA.** Join our team to support the SMIT mission, ... the globe. We are seeking a skilled VPN, WAN & DMZ Network Engineer proficient in network engineering appliances and technologies (ie, Firewalls, DMZ, VPN, WAN,… more
    Leidos (01/07/26)
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  • Senior Malware Engineer

    Leidos (Alexandria, VA)
    …known ports and services; + Demonstrated advanced experience with the Windows operating system and other operating systems (eg, Linux or Unix); + Demonstrated ... has a current job opportunity for a **Senior Malware Engineer ** on the DISA GSM-O program in Alexandria, VA.An...and will aid in discovering other affected or vulnerable systems , establishing a more concrete framework for attribution, and… more
    Leidos (10/31/25)
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  • Senior Cyber Security Engineer

    ManTech (Chantilly, VA)
    …services + Maintain infrastructure in cloud or virtualized environments + Perform Linux-based system upgrades and patches + Engineer and deploy a Multi-Factor ... seeks a motivated, career and customer-oriented **Senior Cyber Security Engineer ** to join our team in **Chantilly, VA** ....5+ years of cyber experience in support of mission systems + Experience working in LINUX environments + Proficiency… more
    ManTech (12/11/25)
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  • Software Virtualization Engineer

    Arena Technical Resources, LLC (Springfield, VA)
    Software Virtualization Engineer Location: Springfield, VA, US Job ID: ATR 17757 Job Description Job Title: Software Virtualization Engineer Location: ... TS/SCI clearance Job Description: We are looking for a Software Virtualization Engineer to support the virtualization of a variety of mission applications supporting… more
    Arena Technical Resources, LLC (01/16/26)
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