• Principal Software Engineer

    Sierra Nevada Company, LLC (Lone Tree, CO)
    …architecture making an impact on a software engineering team + Active Top Secret US Security Clearance w/ SCI eligibility is required **Qualifications We ... more (https://www.sncorp.com/careers/total-rewards/) . **IMPORTANT NOTICE:** This position requires current/active Top Secret with SCI eligibility US Security… more
    Sierra Nevada Company, LLC (11/07/25)
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  • Lead Network Engineer

    The MITRE Corporation (Mclean, VA)
    …experience; or equivalent combination of related education and work experience. + Active a DoD TS /SCI with CI Poly + Familiarity with managing a Windows ... requires the candidate to have a minimum of the following clearance(s): Top Secret /SCI/Polygraph This requisition requires the hired candidate to have… more
    The MITRE Corporation (12/17/25)
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  • Electronics Responsible Engineer IV

    Lockheed Martin (Littleton, CO)
    …is needed to start in this position, you will need to obtain and maintain a ** DoD Top Secret clearance** , thus **US Citizenship is required** \. **Basic ... **Description:** Please join us as a **Responsible Product Engineer /Certified Principal Engineer ** , where you...position, you will need to obtain and maintain a DoD TS /SCI clearance, thus US Citizenship is… more
    Lockheed Martin (01/08/26)
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  • Software Engineer

    KBR (Beavercreek, OH)
    Title: Software Engineer Belong. Connect. Grow. with KBR! KBR's National Security Solutions team provides high-end engineering and advanced technology solutions ... KBR, Inc. is seeking a highly skilled and experienced Software Engineer to support the Air Force's...ensure compliance with Air Force security requirements. + Active Top Secret clearance with SCI eligibility is… more
    KBR (11/27/25)
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  • Systems Engineer

    Lockheed Martin (Littleton, CO)
    …and leadership skills with the ability to engage internal and external stakeholders\. * Active DoD Top Secret clearance or higher, or the ability to obtain ... interested in joining LM and working as a Systems Engineer , please apply to this requisition\. - - -...mission partners and USG laboratories\.\) * US citizenship required, Top Secret clearance required prior to start\.… more
    Lockheed Martin (11/02/25)
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  • Senior Malware Engineer

    Leidos (Alexandria, VA)
    …Malware Engineer ** on the DISA GSM-O program in Alexandria, VA.An active Top Secret security clearance and demonstrated advanced technical ability in reverse ... (eg, Python, C, C++, Ruby) **Basic Qualifications:** + **Active Top Secret clearance or higher** (program can... clearance or higher** (program can support up to TS /SCI) + **Current DoD 8570 IAT II… more
    Leidos (10/31/25)
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  • Principal Software Engineer

    Applied Research Solutions (Bedford, MA)
    **Description** Applied Research Solutions is seeking a full-time Principal Software Engineer for Hanscom AFB. This role will support the Command, Control, ... **Clearance:** Must have and be able to maintain a Top - Secret Level Clearance with current SCI eligibility...Information Assurance Technical (IAT) Level II certification requirements per DoD 8570.01-M. + Experience across the full software… more
    Applied Research Solutions (01/08/26)
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  • Field Service Engineer

    SOS International LLC (Honolulu, HI)
    Honolulu, HI, USA Full-time FLSA Status: Exempt Clearance Requirement: Top Secret Compensation: USD102698 - USD123060 - yearly **Company Description** Founded in ... and troubleshoots reported events. **Qualifications** **Minimum Requirements** + An Active in-scope Top Secret clearance + Bachelor's degree with four (4) years'… more
    SOS International LLC (11/24/25)
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  • Space Vehicle Test Conductor - Principal or Sr.…

    Northrop Grumman (Baltimore, MD)
    …start, but must have the ability to obtain and maintain a US Government DoD Top Secret security clearance and SCI approval/access **Preferred ... RELOCATION ASSISTANCE: Relocation assistance may be available CLEARANCE TYPE: Top Secret TRAVEL: No **Description** At Northrop Grumman, our employees have… more
    Northrop Grumman (12/19/25)
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  • Sr. Spec, Systems Engineer

    L3Harris (Greenville, TX)
    … Secret Clearance at the time of hire with the ability to obtain and maintain a DOD Top Secret ( TS /SCI) Security Clearance. + Must be a US Citizen. ... interest of national security. Job Title: Sr. Specialist, Systems Engineer Job Code: 30296 Job Location: Greenville, TX (On-Site)...Preferred Additional Skills: + Active Top Secret with SCI. + Security+ Certification.… more
    L3Harris (10/24/25)
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