• Senior Information System Security

    General Dynamics Information Technology (Reston, VA)
    …for enterprise information systems and network architectures as an Information System Security Engineer at GDIT. Here, you'll tailor cutting-edge solutions to ... to protect data flows for a wide range of devices. HOW AN INFORMATION SYSTEM SECURITY ENGINEER WILL MAKE AN IMPACT + Provides technical expertise to ensure… more
    General Dynamics Information Technology (11/21/25)
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  • Security Engineer

    CACI International (College Park, MD)
    Security Engineer Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS/SCI with Polygraph Employee Type: Regular ... We are looking for a proactive and experienced Technical Security Engineer to join our cybersecurity team....and incident handling. . Collaborate with development, IT, and operations teams to integrate security best practices… more
    CACI International (11/08/25)
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  • Security Infrastructure Engineer

    Leidos (Alexandria, VA)
    **Description** As a Security Engineer on our team, you will operate and maintain network security infrastructure utilized by a team of cybersecurity ... analysts in support of 24x7x365 mission-critical operations . This position allows hybrid telework about 40% of the time. The other 60% must be on-site. Primary… more
    Leidos (11/15/25)
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  • Staff Security Engineer

    Serco (Redstone Arsenal, AL)
    security talents in a challenging, collaborative, and dynamic environment as a **Staff Security Engineer ** ! Join our team and new contract award supporting ... email to: [email protected] . Click here to apply now (https://careers-sercous.icims.com/jobs/71733/staff- security - engineer /job?mode=apply&apply=yes&in\_iframe=1&hashed=-1834477830) **New to Serco?** Join our Talent… more
    Serco (10/31/25)
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  • ACAS Engineer - Active Top Secret Clearance…

    ENS Solutions (Washington, DC)
    …enable secure and reliable operations of enterprise computer systems. Engineer , design, develop, and implement enterprise network cyber defense capabilities ... or CND Certification + Ability to obtain a DoD 8570.01-M Cyber Security Service Provider - Infrastructure Support Certification, including CEH, CySA+, GICSP,… more
    ENS Solutions (11/06/25)
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  • Operational Technology (OT) Security

    Applied Materials (Santa Clara, CA)
    …our industrial ecosystems remain secure, compliant, and future-ready. The OT Security Engineer is responsible for safeguarding industrial control systems ... architecture and vulnerability workflows. **Innovation & Collaboration** + Partner with engineering, operations , and IT teams to embed security into the **system… more
    Applied Materials (12/04/25)
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  • Senior Security Engineer

    Microsoft Corporation (Redmond, WA)
    …of one of the world's largest cloud platforms. We are looking for a Senior Security Engineer to lead operations and collaborate with other experienced red ... security personnel from multiple teams across Microsoft. Additionally, as a Senior Security Engineer in MRT, you will be responsible for fostering the team's… more
    Microsoft Corporation (11/28/25)
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  • Information System Security Engineer

    GovCIO (Vandenberg AFB, CA)
    **Overview** GovCIO is currently hiring for an Information System Security Engineer (ISSE) to support the 2ROPS accreditation process for small classified mobile ... security engineering systems with requirements of business continuity, operations security , cryptography, forensics, regulatory compliance, internal… more
    GovCIO (11/21/25)
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  • Physical Security Engineer 4

    M. C. Dean (Chantilly, VA)
    …leaders in electrical, engineering, and cybersecurity industries. We are seeking a **Physical Security Engineer 4** to join our ** Security and Electronic ... is Building Intelligence. We design, build, operate, and maintain cyber -physical solutions for the nation's most mission-critical facilities, secure environments,… more
    M. C. Dean (10/23/25)
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  • Information System Security Engineer

    KBR (Beavercreek, OH)
    Title: Information System Security Engineer (ISSE) Belong. Connect. Grow. with KBR! KBR's National Security Solutions team provides high-end engineering and ... defense. KBR, Inc. is seeking a highly skilled and experienced Information Systems Security Engineer (ISSE) to support the Aerial Connectivity (AC) Branch within… more
    KBR (09/30/25)
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