• Information System Security Engineer

    Amentum (Warrenton, VA)
    …space? If so, look no further. Amentum is seeking a Senior Information System Security Engineer (ISSE) to join our team of passionate individuals in Warrenton, ... The duties and responsibilities of the Senior Information System Security Engineer (ISSE) include, but are not...Tier 1, 2, and 3 maintenance support for deployed cyber security technologies. * Assist with periodic… more
    Amentum (12/05/25)
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  • Principal Endpoint Security Systems…

    Leidos (Bethesda, MD)
    …!** **Job Description** This effort is seeking an experienced endpoint security systems engineer to join our Cyber Security Engineering team. The focus ... Security Systems Engineer ** in our **National Security Sector's (NSS) Cyber & Analytics Business...tools. Working in a hybrid cloud/on-prem mission environment the engineer will support integration of Linux and… more
    Leidos (11/28/25)
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  • Security Software Engineer - Red…

    Imagine One Technology & Management (Dahlgren, VA)
    …**for this role.** Imagine One Technology & Management, Ltd. is seeking one (1) Security Software Engineer . This position is contingent upon award of the ... work and will be performed in Dahlgren, Virginia. The Security Software Engineer will be expected to:... will be expected to: + Debug and reverse engineer software. + Analyze Windows Events and Linux more
    Imagine One Technology & Management (12/24/25)
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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 ... Baseline Monitor, and Virus Scan Enterprise) on Windows and Linux creating exceptions to allow essential processes to continue...Tier 1, 2, and 3 maintenance support for deployed cyber security technologies. + Assist with periodic… more
    Amentum (01/09/26)
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  • ACAS Engineer - Active Top Secret Clearance…

    ENS Solutions (College Park, MD)
    …CySA+, GICSP, or CND Certification + Ability to obtain a DoD 8570.01-M Cyber Security Service Provider - Infrastructure Support Certification, including CEH, ... solutions to enable secure and reliable operations of enterprise computer systems. Engineer , design, develop, and implement enterprise network cyber defense… more
    ENS Solutions (12/27/25)
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  • Full Stack Infrastructure Engineer

    Nightwing (Sterling, VA)
    Nightwing provides technically advanced full-spectrum cyber , data operations, systems integration and intelligence mission support services to meet our customers' ... most demanding challenges. Our capabilities include cyber space operations, cyber defense and resiliency,...Experts (CODEX) is seeking a skilled Full Stack Infrastructure Engineer with expertise and focus on automated patching and… more
    Nightwing (01/07/26)
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  • Information Security Systems…

    BAE Systems (Herndon, VA)
    …to improve our future and protect our freedom. We are looking for experienced Cyber Security Engineers to join our technology-based program supporting a key ... & Skills** We are actively seeking an Information Systems Security Engineer (ISSE) with a minimum of...build relationships with technical reps across divisions, comfortable with cyber security and able to brief issues… more
    BAE Systems (12/10/25)
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  • Sr. Full Stack Infrastructure Engineer

    Lockheed Martin (King Of Prussia, PA)
    …upgrade Linux RedHat OS and related virtualization platforms while working with Security personnel to protect against Cyber Threats\. Who you are: You thrive ... in a rapid paced, team environment \- Agile development experience \- CompTIA Security \+ Certification \- Linux Certifications \(CompTIA Linux \+, RHCSA,… more
    Lockheed Martin (11/05/25)
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  • Endpoint Security Engineer (Trellix…

    CACI International (Hampton, VA)
    Endpoint Security Engineer (Trellix Administrator) Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS/SCI Employee ... * **The Opportunity:** Our client is seeking an Endpoint Security Solutions Engineer to join the DGS-X/DMC...+ Maintain Tanium software and utilize dashboards to assist Cyber investigations. + Experience with Linux operating… more
    CACI International (01/13/26)
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  • Information Systems Security

    Huntington Ingalls Industries (Honolulu, HI)
    …Who We Are HII-Mission Technologies is seeking a Information Systems Security Engineer at our Honolulu, Hawaii location. The Information ... Systems Security Engineer (ISSE) is responsible for the...state. What You Will Do + Apply and validate Security Technical Implementation Guides (STIGs) on Windows, Linux more
    Huntington Ingalls Industries (11/18/25)
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