• Senior Software Engineer

    BigBear.ai (Annapolis Junction, MD)
    Overview BigBear.ai is seeking at Software Engineer with an active TS/SCI with Polygraph to develop cutting edge visualizations. This position will be based out ... and usage. + Python or Java → Core backend engineer , likely working on APIs, services, or data processing...What you need to have + Active TS/SCI with Poly clearance + Technical BS and 14 or more… more
    BigBear.ai (01/13/26)
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  • Sr Full Stack Software Engineer

    Lockheed Martin (Annapolis Junction, MD)
    …submit a referral\. If your referral is hired, you'll receive a payment\! code\-extrefer Senior Full Stack Software Engineer \- Clearance Required **WHAT ... where we foster innovation and integrity\. * As a Senior Full Stack Software Engineer ,...Github and Gitlab * Jira and Confluence TS/SCI with Poly **Desired Skills:** * Knowledge of commercial cloud services,… more
    Lockheed Martin (01/17/26)
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  • Senior Cyber Engineer

    CACI International (Chantilly, VA)
    Senior Cyber Engineer Job Category: Engineering Time Type: Full time Minimum Clearance Required to Start: TS/SCI with Polygraph Employee Type: Regular Percentage ... * * * CACI is looking to hire a Senior Cyber Engineer to join our Spectral...our Spectral Cyber team supporting the production of high-quality software applications to support the US Navy mission. The… more
    CACI International (01/19/26)
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  • Senior Mechanical Engineer

    Huntington Ingalls Industries (Alexandria, VA)
    …Anticipated Salary Range: $122,692.00 - $192,801.00 Security Clearance: TS/SCI with Poly Level of Experience: Senior This opportunity resides with ... Job Description Mission Technologies, a division of HII, is seeking a high-caliber Senior Mechanical Engineer to join our elite engineering team. Based in… more
    Huntington Ingalls Industries (01/17/26)
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  • Senior Specialist, Technical Trainer…

    L3Harris (Chantilly, VA)
    …sea and cyber domains in the interest of national security. Job Title: Senior Specialist, Technical Trainer Job Code: 32178 Job Location: Chantilly, VA (on-site) Job ... Description: We are seeking an experienced System Engineer / Integration & Test Engineer who...successful candidate will be responsible for integration of customized software and hardware in a quick paced, engineering oriented… more
    L3Harris (12/18/25)
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  • Senior Thread Engineer - Clearance…

    Lockheed Martin (Annapolis Junction, MD)
    …If your referral is hired, you'll receive a payment\! code\-extrefer Sr\. Thread Engineer \- Clearance Required **WHAT WE'RE DOING** Join Lockheed Martin Rotary and ... Cyber & Intelligence, where we foster innovation and integrity\. As a Thread Engineer , you'll be empowered to create "new realities" and pioneer solutions that break… more
    Lockheed Martin (01/16/26)
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  • Senior Systems Engineer

    Nightwing (Annapolis Junction, MD)
    …the intelligence community, defense, civil, and commercial markets. Nightwing is seeking a ** Senior Systems Engineer ** to play a pivotal role in designing, ... ubiquitous technical surveillance, data intelligence, lifecycle mission enablement, and software modernization. Nightwing brings disruptive technologies, agility, and competitive… more
    Nightwing (12/29/25)
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  • Senior Technical Support Engineer

    Nightwing (Annapolis Junction, MD)
    …community, defense, civil, and commercial markets. **Nightwing is seeking an experienced** ** Senior Technical Support Engineer ** **, who will play a critical ... ubiquitous technical surveillance, data intelligence, lifecycle mission enablement, and software modernization. Nightwing brings disruptive technologies, agility, and competitive… more
    Nightwing (12/29/25)
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  • Senior Systems Engineer (MBSE)…

    RTX Corporation (Springfield, VA)
    …that create a safer, more secure world. Raytheon Technologies is seeking a Senior Systems Engineer (MBSE) to provide enterprise-wide systems engineering and ... US citizens are eligible for a security clearance​ **Security Clearance:** TS/SCI with CI Poly - Current At Raytheon, the foundation of everything we do is rooted in… more
    RTX Corporation (01/12/26)
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  • Machine Learning Engineer - Senior

    SOS International LLC (Chantilly, VA)
    …VA, USA Full-time FLSA Status: Exempt Clearance Requirement: Top Secret SCI w/ Poly **Company Description** Founded in 1989, SOSi is among the largest private, ... Description** **Overview** SOSi is seeking a skilled Machine Learning Engineer to support a US government customer in Chantilly,...job you will work with other talented data scientists, software developers, and SMEs to apply the best practices… more
    SOS International LLC (11/21/25)
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