• Senior Offensive Security Engineer

    CoStar Realty Information, Inc. (Arlington, VA)
    Senior Offensive Security Engineer Job Description **Offensive Security Engineer ** **Overview** CoStar Group (NASDAQ: CSGP) is a leading global provider ... or college (preferably in a relevant field - Computer Science/ Cyber Security ) + A track record of...age, or veteran status. CoStar is also committed to compliance with all fair employment practices regarding citizenship and… more
    CoStar Realty Information, Inc. (08/26/25)
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  • Information Systems Security

    Amentum (Chantilly, VA)
    …space? If so, look no further. Amentum is seeking a **Principal Information System Security Engineer ** to join our team of passionate individuals in **Chantilly, ... mission. We are seeking a highly skilled and experienced Principal Information System Security Engineer to join our team. The successful candidate will bring… more
    Amentum (08/19/25)
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  • IT Systems Security Engineer

    SAIC (Springfield, VA)
    **Description** SAIC is seeking a well-qualified Security Engineer to join an exciting program supporting our customer's Office of Security . This position is ... and Security Requirements Guides (SRG). + Produce evidence as necessary to compliance status of NIST, DOD and customer security requirements as necessary to… more
    SAIC (10/07/25)
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  • Security Engineer

    Imagine One Technology & Management (Dahlgren, VA)
    …+ Bachelor's degree desired ** Security Requirements:** + Active DoD Top Secret security clearance 1. One (1) engineer will require a TS/SCI clearance Imagine ... this role.** Imagine One Technology & Management, Ltd. is seeking two (2) ** Security Engineers.** This position is contingent upon award of the associated work and… more
    Imagine One Technology & Management (09/24/25)
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  • Information Systems Security

    Parsons Corporation (Fort Belvoir, VA)
    …verbal and written communication skills **What Desired Skills You'll Bring:** + BA/BS in Cyber Security + DoD 8570 IAT-III certification + Knowledge of Cloud ... the customer's facility in Ft. Belvoir, VA.** **What You'll Be Doing:** + Ensure compliance with applicable security standards, such as NIST SP 800-53, and other… more
    Parsons Corporation (09/25/25)
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  • Senior Information System Security

    ManTech (Quantico, VA)
    **MANTECH** seeks a motivated, career and customer-oriented **Senior Information System Security Engineer (ISSE)** to join our team in **Quantico, VA.** ... an IS and Network Environment. + Define IS and Network Environment security requirements in accordance with applicable cybersecurity requirements. + Design … more
    ManTech (08/13/25)
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  • Sr. Security Research Engineer

    Proofpoint (Alexandria, VA)
    …more than half of the Fortune 1000, rely on Proofpoint for people-centric security and compliance solutions mitigating their most critical risks across email, ... has a direct and real-time impact protecting Proofpoint customers. As a Senior Security Research Engineer on Proofpoint's Threat Research team, you'll be part… more
    Proofpoint (10/22/25)
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  • SAP NS2 Sr. Security Automation…

    SAP (Herndon, VA)
    …the global market leader for business software and related services. SAP National Security Services Inc.(R) (SAP NS2(R)) is an independent US subsidiary of SAP. At ... _._ We offer SAP solutions with specialized levels of security and support to meet the requirements of US...stay current with the tools and the rapidly evolving cyber threat landscap + Motivated with a positive attitude… more
    SAP (10/24/25)
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  • Cloud Systems Engineer II, ADC System…

    Amazon (Herndon, VA)
    …it stop you from applying. Basic Qualifications - Cloud+ or GICSP (Global Industrial Cyber Security Professional) or GSEC (GIAC Security Essentials) or SSCP ... and improving documentation, runbooks, automation for ops. - Familiarity with security policies, information handling, and compliance standards. - Background… more
    Amazon (09/27/25)
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  • ACAS Engineer - Active Top Secret Clearance…

    ENS Solutions (Norfolk, VA)
    …CySA+, GICSP, or CND Certification + Ability to obtain a DoD 8570.01-M Cyber Security Service Provider - Infrastructure Support Certification, including CEH, ... solutions to enable secure and reliable operations of enterprise computer systems. Engineer , design, develop, and implement enterprise network cyber defense… more
    ENS Solutions (09/27/25)
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