• Lead Security Engineer

    CoStar Realty Information, Inc. (Arlington, VA)
    Lead Security Engineer Job Description **Overview** CoStar Group (NASDAQ: CSGP) is a leading global provider of commercial and residential real estate ... section grows, so will the tools and the **Lead Security Engineer ** will be the person charged...or services and collaborate with other teams to adjust security configurations and architecture + Facilitate quarterly… more
    CoStar Realty Information, Inc. (10/24/25)
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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 ... professionals with strong technical expertise and a desire to shape the security infrastructure of the future. **Responsibilities include but are not limited to:**… more
    ManTech (12/13/25)
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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 ... alongside cyber experts to develop solutions that enhance network compliance and security posture across DoD systems. **Responsibilities include but are not limited… 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 ... **Responsibilities include but are not limited to:** + You will engineer , design, implement, integrate, and sustain Comply-to-Connect (C2C) deployment support to… more
    ManTech (12/13/25)
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  • Staff Information Security Engineer

    Zscaler (Mclean, VA)
    …help shape the future of cybersecurity. **Role** We are looking for a Staff Information Security Engineer to join our Engineering team. This is a fully onsite ... IL6 (SCIF) environment. This role is critical to maintaining our multitenant architecture and global security footprint, ensuring we enable organizations… more
    Zscaler (01/10/26)
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  • Staff Cybersecurity Analyst / Information Systems…

    Northrop Grumman (Fairfax, VA)
    Security Memorandum 8 (NSM-8), and the Zero Trust Architecture /Networking (ZTA/N) high-level concepts and possible implementations. Applicant should be familiar ... Possible is our commitment to missions. In rapidly changing global security environments, Northrop Grumman brings informed insights and software-secure technology to… more
    Northrop Grumman (01/10/26)
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  • Security Engineer , Corporate…

    Amazon (Arlington, VA)
    Security training and outreach for internal development teams - Provide Security architecture and design guidance to application development teams - ... 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… more
    Amazon (01/09/26)
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  • Chief Cyber Security Engineer

    Virtual Service Operations (Arlington, VA)
    Chief Cyber Security Engineer * Arlington, VA (http://maps.google.com/maps?q=Arlington+VA+USA) Description Are you looking to take the next steps in your career ... as a Chief Cyber Security Engineer ? Let's chat and see if...individual with an active TS/SCI clearance to lead the architecture , design, and integration of advanced cybersecurity systems, overseeing… more
    Virtual Service Operations (12/09/25)
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  • Senior Splunk Cyber Security

    ManTech (Chantilly, VA)
    **MANTECH** seeks a motivated, career, and customer-oriented **Senior Splunk Cyber Security Engineer ** to join our team in **Chantilly, VA.** In this role, you ... using centralized management tools + Maintaining and tuning Splunk Enterprise Security (ES) content and performance + Managing knowledge objects, data models,… more
    ManTech (12/30/25)
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