• Junior Software Engineer

    SMX (Chantilly, VA)
    Junior Software Engineer ( TS /SCI CI Poly) (4405)at SMX(View all jobs) (https://www.smxtech.com/careers/) Chantilly, VA SMX is seeking a **Jr. Software ... research in design, development, testing and utilization of electronic data processing software . + Design, develop, document, test and debug applications software more
    SMX (11/02/25)
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  • Specialist, Software Engineer

    L3Harris (Chantilly, VA)
    …requires Top Secret Clearance which requires US Citizenship. Qualifications: + Top Secret or TS /SCI Clearance + Bachelor's degree in computer ... in the interest of national security. Job Title: Specialist, Software Engineer Full-Stack Application Job Code: 31304...+ Mentor and Lead: Provide guidance and mentorship to junior engineers, fostering a culture of continuous learning and… more
    L3Harris (11/19/25)
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  • Digital Signal Processing Engineer

    Parsons Corporation (Chantilly, VA)
    …active TS /SCI w/polygraph is preferred **Security Clearance Requirement:** An active Top Secret SCI security clearance is required for this position.​ This ... Corporation, is seeking qualified candidates to fill a Digital Signal Processing Engineer (DSP) positions at our headquarters in Chantilly, VA. We are currently… more
    Parsons Corporation (11/18/25)
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  • Junior Aerospace Digital Forensics…

    CACI International (Sterling, VA)
    … Job Category: Engineering Time Type: Full time Minimum Clearance Required to Start: Top Secret Employee Type: Regular Percentage of Travel Required: Up to 10% ... * * * **The Opportunity:** CACI is seeking a Junior Aerospace Digital Forensics Engineer to join...work at business site location in Sterling, VA + TOP SECRET with ability to obtain SCI… more
    CACI International (09/17/25)
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  • Systems Engineer - Junior

    Parsons Corporation (Centreville, VA)
    …Engineering or a related field + Must be a US Citizen + Must possess and maintain Top Secret SCI clearance with CI poly + Must have Linux command line experience ... Our Special Programs and Systems team is hiring a Junior Systems Engineer with a passion for...quality assurance (QA) experience **Security Clearance Requirement:** An active Top Secret SCI w/Polygraph security clearance is… more
    Parsons Corporation (12/06/25)
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  • Software Engineer

    CACI International (Sterling, VA)
    Software Engineer Job Category: Information Technology...+ Must be a US citizen with an active Top Secret /SCI DoD Security clearance with polygraph. ... Time Type: Full time Minimum Clearance Required to Start: TS /SCI with Polygraph Employee Type: Regular Percentage of Travel...* * * **The Opportunity:** Join us as a Software Engineer to design, build, and ship… more
    CACI International (09/20/25)
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  • Systems Engineer , Junior

    KBR (Chantilly, VA)
    Title: Systems Engineer , Junior KBR is seeking a Junior Systems Engineer to support our customers in Chantilly, VA. The position requires the employee to ... provide technical expertise as a Systems Engineer and Technical Assistance (SETA). The ideal candidate will have experience within the Intelligence Community with a… more
    KBR (11/21/25)
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  • Mission Solutions SAFe Agile Engineer

    CACI International (Sterling, VA)
    …lieu of degree will be considered, + Active Top Secret //Sensitive Compartmented Information with Counterintelligence Information ( TS /SCI) _Desired:_ + Scaled ... Mission Solutions SAFe Agile Engineer Job Category: Engineering Time Type: Full time...Time Type: Full time Minimum Clearance Required to Start: TS /SCI Employee Type: Regular Percentage of Travel Required: Type… more
    CACI International (12/06/25)
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  • Senior Software Engineer

    KBR (Chantilly, VA)
    Title: Senior Software Engineer KBR is seeking a Senior Software Engineer to join our team. The candidate will leverage their extensive software ... development, implementation, maintenance, configuration management and quality control of software for scientific/engineering applications + Define system and … more
    KBR (12/02/25)
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  • Software Engineer - SME

    KBR (Chantilly, VA)
    Title: Software Engineer - SME Belong. Connect. Grow. with KBR! KBR's National Security Solutions team provides high-end engineering and advanced technology ... the future of space defense. KBR is seeking a Software Engineer SME to join our team....Support on-site meetings and deliveries to customers + Lead junior engineers + Perform other duties as assigned Minimum… more
    KBR (10/21/25)
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  • Senior Software Engineer

    KBR (Chantilly, VA)
    Title: Senior Software Engineer Belong. Connect. Grow. with KBR! KBR's National Security Solutions team provides high-end engineering and advanced technology ... future of space defense. KBR is seeking a Senior Software Engineer to join our team. The...Support on-site meetings and deliveries to customers + Lead junior engineers + Perform other duties as assigned Minimum… more
    KBR (10/21/25)
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  • Cleared AI/ML Engineer (Multiple Levels)

    Noblis (Chantilly, VA)
    …is seeking to hire an AI/ML Engineer (Multiple Levels) with an ACTIVE Top ** ** Secret with SCI and Polygraph in Chantilly, VA** As an experienced AI/ML ... in Linux and Windows environments and managing resources for efficiency. + **ACTIVE Top Secret with SCI and Polygraph** + **Required Technologies:** + Python… more
    Noblis (10/08/25)
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  • Software Developer IV

    General Atomics (Chantilly, VA)
    …Required:** 0% - 25% **Full-Time/Part-Time:** Full-Time Salary **State:** Virginia **Clearance Level:** Top Secret (current SCI access with CI Poly) **Pay Range ... Required?:** Desired **Pay Range High:** 189,545 **Recruitment Posting Title:** Frontend Software Engineer , Federal **Job Qualifications:** + Typically requires… more
    General Atomics (12/11/25)
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  • Signal Processing Engineer Subject Matter…

    Lockheed Martin (Manassas, VA)
    …constructive\) and coaching to achieve high performance * Ability to obtain Top Secret security clearance **Security Clearance Statement:** This position ... models for radar, sonar, electronic warfare, and other mission‑critical sensors\. Software Engineering & DevOps - Write production‑grade code, establish CI/CD… more
    Lockheed Martin (10/22/25)
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  • Senior Python Engineer

    SAIC (Quantico, VA)
    …or a related field. Equivalent work experience may be considered. + Active Top Secret clearance with SCI eligibility. + IAT-II Certification (ie, Security ... and Combatant Commands Business Group of SAIC is seeking a Senior Python Engineer to support a transformational infrastructure program for DCSA. SAIC is proud to… more
    SAIC (12/03/25)
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  • Mechanical Engineer

    Leidos (Chantilly, VA)
    …and structural teams to deliver integrated solutions. **Basic Qualifications** + **Current Top Secret SCI security clearance and the ability to pass ... - Mission-Critical Facilities Design** Leidos is seeking a driven and detail-oriented Junior level Mechanical Engineer to support the planning, design, and… more
    Leidos (11/05/25)
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  • Senior Systems Engineer

    Leidos (Chantilly, VA)
    …VA + Aurora, CO + St. Louis, MO + Tucson, AZ **Clearance Level Required:** Top Secret with SCI eligibility and able to obtain a Polygraph. **Primary ... Leidos National Security Sector combines technology-enabled services and mission software capabilities in the areas of cyber, logistics, security operations,… more
    Leidos (11/22/25)
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  • Recapitalization Network Engineer

    CACI International (Sterling, VA)
    Recapitalization Network Engineer Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS /SCI with Polygraph Employee ... an ongoing basis. **Opportunity:** Team CACI is seeking a Senior Network Engineer to support the recapitalization of an Intelligence Community customer's diverse… more
    CACI International (10/25/25)
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  • Software Developer IV

    General Atomics (Chantilly, VA)
    …Required:** 0% - 25% **Full-Time/Part-Time:** Full-Time Salary **State:** Virginia **Clearance Level:** Top Secret (current SCI access with CI Poly) **Pay Range ... Yes **Pay Range High:** 189,545 **Recruitment Posting Title:** Cleared Senior Software Engineer **Job Qualifications:** + Typically requires a bachelors… more
    General Atomics (12/11/25)
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  • Software Developer V

    General Atomics (Chantilly, VA)
    …do more, and that's where you come in! We are seeking a Senior Software Engineer to design, develop, and maintain JVM-based applications for ingesting, ... 0% - 25% **Full-Time/Part-Time:** Full-Time Salary **State:** Virginia **Clearance Level:** Top Secret (SCI access eligible) **Pay Range Low:** 116,480… more
    General Atomics (12/11/25)
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