• Information Security Systems…

    BAE Systems (Herndon, VA)
    …**Required Education, Experience, & Skills** We are actively seeking an Information Systems Security Engineer (ISSE) with a minimum of 11 years' experience with ... a key government customer. This program will deliver engineering services for network infrastructure as well as sophisticated enterprise computing infrastructure… more
    BAE Systems (12/10/25)
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  • Senior Security Engineer

    CoStar Realty Information, Inc. (Arlington, VA)
    …threat hunting in the CoStar enterprise + Follow, develop and improve network and endpoint security configuration procedures + Work with other teams to ... Senior Security Engineer Job Description **Overview** CoStar...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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  • Endpoint Security Engineer Lead…

    Leidos (Arlington, VA)
    **Description** Leidos has an immediate need for a lead Endpoint Security Engineer for a customer on a highly visible and strategic Cybersecurity Task Order. The ... Security Engineer will need to be a...features into existing infrastructures while maintaining the integrity and security of enterprise -wide systems and networks. **Primary… more
    Leidos (11/25/25)
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  • SharePoint Network Engineer

    Huntington Ingalls Industries (Virginia Beach, VA)
    …Provide technical support and training to end users and collaborate with cybersecurity, network , and server teams. + Participate in security reviews, audits, and ... Type: Full Time/Salaried/Exempt Anticipated Salary Range: $101,228.00 - $135,000.00 Security Clearance: TS/SCI Level of Experience: Mid HI This opportunity… more
    Huntington Ingalls Industries (01/08/26)
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  • Cleared Senior Information Systems Security

    Virtual Service Operations (Lorton, VA)
    …services and cyber network defense capabilities. As aSenior Information System Security Engineer (ISSE), you will provide expert engineering support to ... Cleared Senior Information Systems Security Engineer (ISSE) L4 * Lorton,...Splunk, ACAS, Azure Automation, STIG/SCAP, Active Directory, and Azure security servicesto secure enterprise environments in alignment… more
    Virtual Service Operations (11/09/25)
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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 ... Lone Wolf program is to support, operate, and maintain the Distributed Continuity Integrated Network - Top Secret Enterprise Services (DCIN-TS ES) which is a… more
    Amentum (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 ... enterprise networks and data centers. + Familiarity with enterprise security software products such as firewalls,... 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 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 ... edge in real estate. We're hiring a **Senior SaaS Security Engineer ** to help us evolve our...on Friday. **Responsibilities** **Program & Strategy** + Build the enterprise SaaS Security program: charter, operating model,… more
    CoStar Realty Information, Inc. (11/04/25)
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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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  • Senior Principal Security Engineer

    Oracle (Richmond, VA)
    …we looking for?** The OCI Core Services organization is looking for a Senior Principal Security Engineer that will be the technical security leader for OCI's ... + Deep expertise in one or more areas: hypervisor security , network security (SDN, firewalls,...+ Prior role as a Principal or Senior Principal Security Engineer at a major cloud provider… more
    Oracle (11/25/25)
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