• 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 ... and tactics, techniques, and procedures (TTPs) + Maintain complete and current network and elevation diagrams for all managed security equipment + Coordinate and… more
    Leidos (11/15/25)
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  • CCSS Principal Systems Engineer - WHCA…

    RTX Corporation (Springfield, VA)
    …world. Raytheon Field Engineering is anticipating an opportunity for a Principal Systems Engineer . This role is suited for a motivated individual with an extended ... WHCA's facility in Washington, DC and involves supporting the WHCA Secure Voice Network (WHSVN) C2 systems and acquisition projects. These efforts are in support of… more
    RTX Corporation (11/13/25)
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  • Senior System Engineer (C)

    SimIS Inc. (Dahlgren, VA)
    …importance of others (work and win as a team). SimIS Inc seeks a System Engineer III to provide combat system simulation support to the Warfare Analysis and Digital ... will provide system level requirements analysis, facility and system design, network design, market/trade studies and analysis, and logistics support in support… more
    SimIS Inc. (11/06/25)
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  • ADC Engineer I, Amazon Dedicated Cloud…

    Amazon (Arlington, VA)
    …most complex technical problems? Do you have a deep passion and desire to engineer and operate the world's largest cloud computing infrastructure to build a better ... - High school or equivalent diploma, or A+ or CND (Certified Network Defender) or Network + or Security- 1-3 years of experience with Systems Administration in… more
    Amazon (10/16/25)
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  • ADC Engineer I, Amazon Dedicated Cloud…

    Amazon (Herndon, VA)
    …most complex technical problems? Do you have a deep passion and desire to engineer and operate the world's largest cloud computing infrastructure to build a better ... - High school or equivalent diploma, or A+ or CND (Certified Network Defender) or Network + or Security- 1-3 years of experience with Systems Administration in… more
    Amazon (10/16/25)
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  • Operating Environment Engineer

    ManTech (King George, VA)
    **MANTECH** seeks a motivated, career- and customer-oriented **Operating Environment (OE) Engineer ** to join our team in **King George, VA** . This is an **on-site** ... ship's force in the following areas: + Computer and Network Maintenance: This includes servers, routers, data buses (including...Systems: While the primary focus is on the Aegis network , you may also apply your expertise to other… more
    ManTech (10/08/25)
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  • Transport Engineer

    TekSynap (Arlington, VA)
    …**REQUIRED QUALIFICATIONS** + Experience: + 3+ years of experience in the field of network engineering or a related area. + Certifications: + CompTIA Security + CE + ... Environment Certification (one of the following): + Cisco Certified Network Associate (CCNA) + Cisco Certified Network ...Top Secret/SCI clearance **Overview** We are seeking a Transport Engineer to join our team supporting DISA JSP ETM… more
    TekSynap (10/07/25)
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  • PKI Engineer - Active TS/SCI with CI Poly

    ENS Solutions (Mclean, VA)
    As an IAM engineer , you'll play a critical role in the world of IAM and Zero Trust. In this role, you'll support large-scale IAM projects for our clients. You'll ... implementing ACME and SCEP processes + Security+ Certification Benefits Essential Network Security (ENS) Solutions, LLC is a service-disabled veteran owned, highly… more
    ENS Solutions (01/01/26)
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  • Cloud Security Engineer

    Datavant (Richmond, VA)
    …the right format. Our platform is powered by the largest, most diverse health data network in the US, enabling data to be secure, accessible and usable to inform ... healthcare. **What We're Looking For:** As a Cloud Security Engineer in the Secure Product & Infrastructure program, you...members. + Have a point of view on secure network controls and the deep design paradigms of secure… more
    Datavant (01/01/26)
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  • Hardware Reverse Engineer , Senior

    CACI International (Sterling, VA)
    Hardware Reverse Engineer , Senior Job Category: Engineering Time Type: Full time Minimum Clearance Required to Start: TS/SCI Employee Type: Regular Percentage of ... events where you get to engage with your co-workers and expand your career network . We have a fun, engaging environment with a management team focused on growing… more
    CACI International (12/29/25)
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