• Lead, Information Security Systems…

    L3Harris (Ashburn, VA)
    …domains in the interest of national security . Job Title: Anti-Tamper System Security Engineer (Secret Security Clearance) Job Code: 30715 Job Location: ... activities. + Use DoD 5200.39 for the identification and protection of CPI. + Engineer trustworthy and secure systems in accordance with NIST 800-160. + Develop and… more
    L3Harris (11/01/25)
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  • 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 ... candidate will have experience implementing, using and updating standard security software in the areas of vulnerability...section grows, so will the tools and the **Senior Security Engineer ** will be the person charged… more
    CoStar Realty Information, Inc. (10/24/25)
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  • Security Engineer , Corporate…

    Amazon (Arlington, VA)
    …oral and written communications A day in the life As a Senior Security Engineer , you will collaborate with software development teams to ensure we keep our ... threat modeling experience, secure coding, identity management and authentication, software development, cryptography, system administration and network security more
    Amazon (01/09/26)
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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 ... in large-scale enterprise networks and data centers. + Familiarity with enterprise security software products such as firewalls, IPS, antivirus tools,… more
    ManTech (12/13/25)
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  • Data Mining and Analytics (Databricks)…

    ICF (Arlington, VA)
    …systems. The successful cleared candidate will act as a Data Mining and Analytics Engineer to support a large federal cyber security analytic program. Your work ... Description ICF International seeks an experienced Data Mining and Analytics (Databricks) Engineer to support the research and development of new cyber analytic… more
    ICF (12/30/25)
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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 ... network deployments and data centers + Experience deploying and/or supporting enterprise security software products such as firewalls, IPS, anti-virus solutions,… more
    ManTech (12/13/25)
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  • Product Security Engineer , AI

    Meta (Richmond, VA)
    …Come help us make life hard for the bad guys. **Required Skills:** Product Security Engineer , AI Responsibilities: 1. Security Reviews: perform manual design ... purpose languages **Preferred Qualifications:** Preferred Qualifications: 9. Experience creating software that enables security processes, especially those… more
    Meta (12/20/25)
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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 ... and data centers + Hands-on experience deploying and/or supporting enterprise security software products such as firewalls, IPS, Anti-Virus solutions,… more
    ManTech (12/13/25)
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  • Endpoint Security Engineer (Trellix…

    CACI International (Hampton, VA)
    Endpoint Security Engineer (Trellix Administrator) Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS/SCI Employee ... * **The Opportunity:** Our client is seeking an Endpoint Security Solutions Engineer to join the DGS-X/DMC...threats and vulnerabilities to client systems. + Maintain Tanium software and utilize dashboards to assist Cyber investigations. +… more
    CACI International (01/13/26)
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  • Security Engineer

    Zoom (Richmond, VA)
    What you can expect As an Application Security Engineer , you will work with security testing automation and tools, focusing on Static Application Security ... practices. Responsibilities + Developing or employing 3rd party security test automation solutions for Containers, Software ..., Computer Engineering). + Prove experience working as a Security Engineer or in a similar role… more
    Zoom (01/09/26)
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