• Senior Security Engineer

    CoStar Realty Information, Inc. (Arlington, VA)
    Senior Security Engineer Job Description **Overview** CoStar Group (NASDAQ: CSGP) is a leading global provider of commercial and residential real estate ... As the security section grows, so will the tools and the **Senior Security Engineer ** will be the person charged with implementing them. The successful… more
    CoStar Realty Information, Inc. (10/24/25)
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  • Lead Data Loss Prevention (DLP) Security

    CoStar Realty Information, Inc. (Arlington, VA)
    Lead Data Loss Prevention (DLP) Security Engineer Job Description **Overview** CoStar Group (NASDAQ: CSGP) is a leading global provider of commercial and ... we need more dedicated engineers. We are hiring a **Lead DLP Engineer ** to design, scale, and operationalize Microsoft Purview-based protections across endpoints and… more
    CoStar Realty Information, Inc. (11/04/25)
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  • Senior Cyber Security Engineer

    ManTech (Chantilly, VA)
    **MANTECH** seeks a motivated, career and customer-oriented **Senior Cyber Security Engineer ** to join our team in **Chantilly, VA.** This role supports a ... solutions, network management systems, and virtualized systems. + Strong understanding of Windows and Linux systems, operating system security principles, TCP/IP… more
    ManTech (12/13/25)
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  • Principal Cyber Security Engineer

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

    ManTech (Chantilly, VA)
    **MANTECH** seeks a motivated, career and customer-oriented **Senior Principal Cyber Security Engineer ** to join our team in **Chantilly, VA.** This role ... availability solutions, network management systems, and virtual systems + Knowledge of Windows and Linux systems, general operating system security practices,… more
    ManTech (12/13/25)
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  • Principal Systems Engineer

    V2X (Springfield, VA)
    …Productivity and Global Information Assurance Certification (GIAC) GIAC Certified Windows Security Administrator (GCWN) certified. + Technical certifications ... battlefield. We bring 120 years of successful mission support to improve security , streamline logistics, and enhance readiness. Aligned around a shared purpose, our… more
    V2X (11/25/25)
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  • Senior Endpoint Engineer

    CACI International (VA)
    Engineer to join our team on a contract supporting the Department of Homeland Security . As a Senior Endpoint Engineer , you will be part of a dynamic team ... Senior Endpoint Engineer Job Category: Information Technology Time Type: Full...of windows cloud engineers and security specialists with...of windows cloud engineers and security specialists with expert experience in Windows ,… more
    CACI International (12/09/25)
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  • Staff Cybersecurity Analyst / Information Systems…

    Northrop Grumman (Fairfax, VA)
    …Possible is our commitment to missions. In rapidly changing global security environments, Northrop Grumman brings informed insights and software-secure technology to ... of engineers, system administrators, and operators as a Principal Cyber Systems Engineer professional in Chantilly, VA. The successful candidate will be expected to… more
    Northrop Grumman (01/10/26)
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  • Senior Information Systems Security

    Amentum (Warrenton, VA)
    …change. **Responsibilities:** The duties and responsibilities of the **Senior Information System Security Engineer (ISSE)** include, but are not limited to, the ... and ability to conduct research for designing, integrating, and implementing security controls into current and future products/systems thus ensuring these systems… more
    Amentum (01/09/26)
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  • Information Systems Security

    Nightwing (Sterling, VA)
    …commercial markets. Nightwing is seeking a highly skilled and motivated Information Systems Security Engineer (ISSE) to join our DevSecOps team in Herndon. The ... work closely with cross-functional teams to ensure systems comply with security policies, standards, and best practices. The position requires hands-on experience… more
    Nightwing (12/30/25)
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