• Modeling & Simulation Engineer (Specialist)

    KBR (Reston, VA)
    …basis + Proficiency in C++, Python, or other programming language + Active Top - Secret clearance with Sensitive Compartmented Information (SCI) eligibility ... Title: Modeling & Simulation Engineer (Specialist) Belong. Connect. Grow. with KBR! KBR's...or supporting decisions under uncertainty. + Support M&S and software development efforts. + Collaborate with military subject matter… more
    KBR (10/24/25)
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  • Java Developer

    Koniag Government Services (Vienna, VA)
    …deployment, and support for new or existing IT application software on Unclassified, Secret and Top Secret enclaves. Development currently uses the Agile ... Services company, is seeking a Java Developer with a TS /SCI security clearance to support Kadiak and...to ensure program deadlines are met. + Assist Applications Engineer and Applications Programmer to interpret software more
    Koniag Government Services (12/10/25)
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  • Systems Engineer

    SAIC (Arlington, VA)
    …upon contract award. Candidates must be US citizens and eligible for a DoD Secret clearance , with the ability to obtain a TS /SCI clearance . In this role, ... **Description** SAIC is seeking an experienced Systems Engineer to support the Department of the Air...perspectives. US Citizenship, and an active Secret clearance is required, with eligibility up to TS more
    SAIC (01/17/26)
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  • System Development Engineer , Platform…

    Amazon (Arlington, VA)
    …requires that the candidate selected must currently possess and maintain an active TS /SCI security clearance with polygraph. The position further requires the ... Dedicated Cloud team is hiring for a System Development Engineer to support CloudTrail, AWS Config and other AWS...Golang, PowerShell, Ruby - Current, active US Government Security Clearance of TS /SCI with Polygraph Preferred Qualifications… more
    Amazon (12/17/25)
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  • ADC Engineer , Platform Engineering…

    Amazon (Arlington, VA)
    …requires that the candidate selected must currently possess and maintain an active TS /SCI security clearance with polygraph. The position further requires the ... Amazon Dedicated Cloud team is hiring for an ADC Engineer to support CloudTrail, AWS Config and other AWS...cause of issues. - Current, active US Government Security Clearance of TS /SCI with Polygraph Preferred Qualifications… more
    Amazon (12/17/25)
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  • CCSS Principal Systems Engineer - WHCA…

    RTX Corporation (Springfield, VA)
    …US citizenship is required, as only US citizens are eligible for a security clearance ​ **Security Clearance :** TS /SCI - Current At Raytheon, the foundation ... 8 years of prior engineering experience. + Active and transferable US government issued TS /SCI US government issued security clearance is required prior to start… more
    RTX Corporation (11/13/25)
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  • Information System Security Engineer (ISSE)

    Assertive Professionals (Chantilly, VA)
    …Req Number AP--24-00022 Location Chantilly, Virginia Full-Time/Part-Time Full-Time Minimum Clearance TS /SCI with Polygraph Timeline Pipeline Description ... Information System Security Engineer (ISSE) About the Organization Established in 2015,AssertiveProfessionals(AP),...the Defense Contracting community taking 15th place in America's Top 100 Small Business Visionaries for the 2018 Best… more
    Assertive Professionals (01/07/26)
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  • Network Engineer

    Assertive Professionals (Chantilly, VA)
    …Req Number AP--24-00029 Location Chantilly, Virginia Full-Time/Part-Time Full-Time Minimum Clearance TS /SCI with Polygraph Timeline Pipeline Description ... Network Engineer About the Organization Established in 2015,AssertiveProfessionals(AP), is...the Defense Contracting community taking 15th place in America's Top 100 Small Business Visionaries for the 2018 Best… more
    Assertive Professionals (11/21/25)
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  • Senior Lead Engineer - Public Sector

    Lumen (Richmond, VA)
    …problems Candidate must be a US Citizen with an active Department of Defense TOP SECRET clearance **Compensation** This information reflects the anticipated ... trust and transparency. People power progress. We're looking for top -tier talent and offer the flexibility you need to...will be able to rapidly identify and resolve problems, engineer , identify, and become proficient in the latest technology… more
    Lumen (01/09/26)
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  • GEOINT Systems Engineer

    Sciolex Corporation (Chantilly, VA)
    …to strategic priorities and performance standards. Qualifications & Physical Requirements + Active Top Secret /SCI clearance with Poly. + Bachelors and five ... ensuring you receive the utmost employee care. Responsibilities As the GEOINT Systems Engineer you will interact daily with senior government and Program staff to… more
    Sciolex Corporation (01/07/26)
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