• Information System Security Engineer

    Assertive Professionals (Chantilly, VA)
    Information System Security Engineer (ISSE) About the Organization Established in 2015,AssertiveProfessionals(AP), is anEconomically Disadvantaged Woman Owned ... Polygraph Timeline Pipeline Description Assertive Professionalsis seeking anInformation System Security Engineer (ISSE) with Poygraph supporting ourNational … more
    Assertive Professionals (01/07/26)
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  • Endpoint Security Engineer

    BOOZ, ALLEN & HAMILTON, INC. (Reston, VA)
    Endpoint Security Engineer Key Role: Design, deploy, manage, and operationalize enterprise endpoint data protection controls as a Trellix Endpoint Data Loss ... Prevention ( DLP ) Engineer . Serve as the technical owner for Trellix EDR...Build an enterprise-grade data protection program with visibility across security leadership, risk, and operational teams. Lead enterprise deployment,… more
    BOOZ, ALLEN & HAMILTON, INC. (12/30/25)
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  • Program Security Engineer

    SAIC (Chantilly, VA)
    …analysis, systems engineering & integration and more. This position is for Program Security Engineer for a large, multi-year contract supporting a cutting-edge ... responsible for maximizing the effectiveness of our staff and our program. Program Security Engineer supports the SETA Program Management Office serving as the… more
    SAIC (12/23/25)
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  • Edge Security Engineer

    CoStar Realty Information, Inc. (Arlington, VA)
    Edge Security Engineer Job Description **Overview** CoStar Group (NASDAQ: CSGP) is a leading global provider of commercial and residential real estate ... in real estate. We are seeking a skilled **Edge Security Engineer ** to join our Product ...advanced bot detection strategies including behavioral analysis and AI-based solutions . + Scripting and Infrastructure as code proficiency (Python,… more
    CoStar Realty Information, Inc. (12/18/25)
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  • Security Engineer

    Leidos (Lorton, VA)
    **Description** The Digital Modernization Sector at Leidos currently has an opening for a Security Engineer to work in our Lorton, VA office. This is an exciting ... to deliver cybersecurity and information assurance services. **Primary Responsibilities** The Security Engineer - Linux / Tenable Compliance is responsible for… more
    Leidos (12/11/25)
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  • AI Security Engineer , Manager

    Deloitte (Richmond, VA)
    …operate our business, and create value. Work you'll do As a Deloitte Manager, AI Security Engineer , you will be crucial in safeguarding our advanced AI models, ... attacks (adversarial, prompt injection, data leakage) + Conduct AI-focused security assessments, penetration tests, red/purple team exercises + Analyze AI… more
    Deloitte (10/22/25)
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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 ... enterprise-level Comply-to-Connect (C2C) expertise, including vendor-agnostic services and open-source security solutions , with proficiency in DoD integration,… more
    ManTech (12/13/25)
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  • Lead Security Engineer

    Foxhole Technology, Inc (Alexandria, VA)
    **Overview** **Job Title: Lead Security Engineer ** **Clearance: Top Secret w/SCI eligibility** **Location: Alexandria, VA** **Start: Based on Contract Award** ... needs. Our talented employee-owners provide agile, scalable services and solutions that solve operational gaps, operate critical systems, and...the world **.** We are seeking a mission-focused Lead Security Engineer to support a Department of… more
    Foxhole Technology, Inc (12/19/25)
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  • Network Security Engineer III

    TekSynap (Virginia Beach, VA)
    …and management of firewalls and IDS/IPS technologies. **Overview** We are seeking a Network Security Engineer III to join our team supporting Department of Navy. ... + Design, implement, and maintain secure network infrastructure, enforcing security controls across hardware, software, and network components. + Conduct… more
    TekSynap (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 ... and unclassified environments. You will work alongside cyber experts to develop solutions that enhance network compliance and security posture across DoD… more
    ManTech (12/13/25)
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