• Senior Information System Security Engineer

    ManTech (Quantico, VA)
    …network system (s). Ensure that the design of hardware, operating systems , and software applications adequately address cybersecurity requirements for the IS and ... (CASP) CE, Certified Secure Software Lifecycle Professional (CSSLP), CISSP- Information System Security Engineering Professional (ISSEP), or CISSP- Information … more
    ManTech (08/13/25)
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  • IT Systems Engineer/SME

    Koniag Government Services (Arlington, VA)
    …Services LLC, a Koniag Government Services company **,** is seeking an IT Systems Engineer/SME with a TS/SCI clearance to support KPS and our government customer ... (KPS) is seeking a highly skilled and motivated IT Systems Engineer to join the Chief Digital and AI...of the Under Secretary of War for Research and Engineering (USW(R&E)). The ideal candidate will be a key… more
    Koniag Government Services (09/23/25)
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  • Systems Engineer

    Leidos (Chantilly, VA)
    …, coordinating closely with enterprise architects and security teams. + Perform systems engineering functions including requirements analysis, timeline and trade ... with Juniper firewalls and datacenter management. + Strong background in systems engineering : design, integration, verification & validation, and fielding.… more
    Leidos (08/16/25)
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  • Systems Engineer

    GovCIO (Richmond, VA)
    …Science, Information Technology, or similar field with 7+ years of system engineering experience (or commensurate experience) **Company Overview** GovCIO ... **Overview** GovCIO is currently hiring for System Engineer for our HUD proposal. The ...planning, design, and installation of equipment, using knowledge of engineering and programming as well as sophisticated instruments and… more
    GovCIO (09/30/25)
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  • Information System Security Engineer

    ManTech (Virginia Beach, VA)
    …(CASP) CE, Certified Secure Software Lifecycle Professional (CSSLP), CISSP- Information System Security Engineering Professional (ISSEP), or CISSP- Information ... **MANTECH** seeks a motivated, career and customer-oriented **Senior Information System Security Engineer (ISSE)** to join our team in **Norfolk, VA.** This is a… more
    ManTech (09/30/25)
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  • Data Systems Engineer

    Leidos (Chantilly, VA)
    …processes and/or software development methodologies, planning, designing and analyzing functional system processes - either hardware or software-based systems . + ... with Polygraph_** **will not be considered.** + Demonstrated experience with Linux system administration and engineering . + Demonstrated ability to devise… more
    Leidos (07/18/25)
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  • Senior Systems Engineer

    Leidos (Chantilly, VA)
    …mission. **What You'll Do:** Step into a hybrid role where classic system administration meets cutting-edge infrastructure engineering . You'll play a key ... + Serve as the operational backup for the senior systems engineer. + Participate in infrastructure and system...lieu of degree. + 3-5 years of experience in systems administration or infrastructure engineering roles. +… more
    Leidos (08/15/25)
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  • Lead, Information Security Systems Engineer…

    L3Harris (Ashburn, VA)
    …cyber domains in the interest of national security. Job Title: Anti-Tamper System Security Engineer (Secret Security Clearance) Job Code: 26869 Job Location: ... development and implementation of Anti-Tamper (AT) measures throughout the System Development Lifecycle. + Serve as a Subject Matter...Expert (SME) in the area of AT. + Assess systems for Critical Program Information (CPI). + Conduct trade… more
    L3Harris (08/03/25)
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  • Senior Network and Computer Systems…

    CACI International (Herndon, VA)
    Senior Network and Computer Systems Administrator Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS/SCI Employee ... Provide comprehensive support for the integration, maintenance, and sustainment of intelligence systems across ARNG G-2 and its strategic partners. + Conduct … more
    CACI International (09/17/25)
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  • AWS System Administrator

    CACI International (Springfield, VA)
    AWS System Administrator Job Category: Engineering Time Type: Full time Minimum Clearance Required to Start: TS/SCI Employee Type: Regular Percentage of Travel ... Opportunity:** The TCS team is looking for an AWS System Administrator to work on Enterprise Cross-Domain Systems... System Administrator to work on Enterprise Cross-Domain Systems and associated projects. These systems provide… more
    CACI International (08/26/25)
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