• 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 ... section grows, so will the tools and the ** Senior Security Engineer ** will be...response functions and reporting of findings + Review technical security posture ( network , application, database) for existing… more
    CoStar Realty Information, Inc. (10/24/25)
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  • Senior Network /Systems Tools…

    Jacobs (Chantilly, VA)
    Knack Works, a Jacobs Company, has an opening for a Senior Network /Systems Tools Engineer to support the Intelligence Sector. The job duties are as follows: ... network management, performance monitoring, and compliance reporting. * Security & Compliance: Provide SME support and guidance to junior administrators… more
    Jacobs (01/06/26)
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  • Senior Network /Systems Tools…

    Leidos (Chantilly, VA)
    …Mission:** The Digital Modernization Sector at Leidos has an opening for an a Senior Network /Systems Tools Engineer to support the Intelligence Sector. **The ... network management, performance monitoring, and compliance reporting. + Security & Compliance: Provide SME support and guidance to junior administrators… more
    Leidos (12/20/25)
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  • Senior SaaS Security Engineer

    CoStar Realty Information, Inc. (Arlington, VA)
    Senior SaaS Security Engineer Job Description **Overview** CoStar Group (NASDAQ: CSGP) is a leading global provider of commercial and residential real estate ... an invaluable edge in real estate. We're hiring a ** Senior SaaS Security Engineer ** to...for SaaS inventory (shadow IT included), integrating procurement, SSO/IDP, network /DNS/forward proxy, CASB/SSE, SSPM, and expense data. + Define… more
    CoStar Realty Information, Inc. (11/04/25)
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  • Senior Cyber Security…

    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 ... include but are not limited to:** + You will engineer , design, implement, integrate, and sustain Comply-to-Connect (C2C) deployment... security principles, TCP/IP networking, 802.1x, and core network security concepts. + Must possess an… 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 ... include but are not limited to:** + You will engineer , design, implement, integrate, and sustain Comply-to-Connect (C2C) deployment...system security practices, TCP/IP networking, 802.1x, and network security concepts + An active IAT… more
    ManTech (12/13/25)
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  • Senior Information Systems Security…

    Amentum (Warrenton, VA)
    …for transformative change. **Responsibilities:** The duties and responsibilities of the ** Senior Information System Security Engineer (ISSE)** include, ... is a DoD-provided, TS/SCI, integrated voice, video, and data, global communications network that facilitates collaboration among senior leaders and key staff.… more
    Amentum (01/09/26)
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  • Senior Network Engineer

    SAIC (Suffolk, VA)
    **Description** SAIC is looking for a **Top** **Secret cleared Network Engineer ** with experience in US Navy IT networks to support the sustained operation and ... maintenance of a newly deployed naval enterprise transport network . The position will support end-to-end network ,...experience can be considered in lieu of degree **Required Security Clearance:** + Top Secret Clearance required with the… more
    SAIC (01/07/26)
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  • Senior Desktop Engineer SCCM

    SAIC (Quantico, VA)
    **Description** **SAIC is seeking a Sr . Desktop Engineer (SCCM) for a new/exciting program out of Quantico, VA. (Must possess an active TS/SCI and Sec+ ... Certification.)** **Introduction** Make a difference for national security by joining a team of dedicated IT professionals...Combatant Commands Business Group of SAIC is seeking a Senior Desktop Engineer (SCCM) to support a… more
    SAIC (12/03/25)
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  • Information Systems Security…

    CGI Technologies and Solutions, Inc. (Arlington, VA)
    **Information Systems Security Engineer (ISSE) - Senior ** **Category:** Cyber Security **Main location:** United States, Virginia, Arlington **Position ... highly collaborative team to deliver state-of-the-art capabilities. The Information System Security Engineer (ISSE) designs, implements, and manages security… more
    CGI Technologies and Solutions, Inc. (12/26/25)
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