• Nuclear Engineer , Senior

    BOOZ, ALLEN & HAMILTON, INC. (Reston, VA)
    Nuclear Engineer , Senior Key Role: Provide nuclear weapons effects subject matter expertise to client research and development (R&D) modeling and simulation ... supervisors or managers. Basic Qualifications: + 8+ years of experience with systems engineering approaches to nuclear weapons effects or development and use of… more
    BOOZ, ALLEN & HAMILTON, INC. (01/20/26)
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  • Senior Engineer for Joint Command…

    IronMountain Solutions, Inc. (Arlington, VA)
    501165 Senior Engineer for Joint Command and Control Work Location: Arlington, Virginia Schedule: Full Time Relocation: Negotiable IronMountain Solutions, Inc. ... is seeking aSenior Engineer for Joint Command and Control.Potential to Telecommute: Work...Staff, and/or Service Staff experience is desired. + Active TOP SECRET clearance with eligibility for Sensitive… more
    IronMountain Solutions, Inc. (12/28/25)
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  • Senior Reliability & Maintainability (R&M)…

    RTX Corporation (Sterling, VA)
    …while balancing priorities and schedules **Qualifications We Prefer** + Active or Existing Secret or Top Secret Security Clearance preferred **What We ... citizens are eligible for a security clearance **Security Clearance:** DoD Clearance: Secret Collins Aerospace, an RTX company, is a leader in technologically… more
    RTX Corporation (01/15/26)
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  • Senior Software Engineer

    Cinteot (Fort Belvoir, VA)
    SENIOR SOFTWARE ENGINEER REQUIREMENTS: + Active TOP SECRET /SCI + Bachelor's Degree in Systems Engineering, Software Engineering, or Computer Science ... in multi-tiered architectures (Web, API, database tiers); Windows and Unix systems ; IIS Web Servers; Multi-component, multi-tiered Systems integration;… more
    Cinteot (11/05/25)
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  • Network Engineer III

    William C Brown Inc (Springfield, VA)
    …Degree Location Springfield Full-Time/Part-Time Full-Time Exempt/Non-Exempt Exempt Security Clearance Requirements Top Secret / SCI This position is currently ... Network Engineer III EOE Statement We are an equal...standards and evaluates, consults and makes technology recommendations to senior management. This position requires experience in complex telecommunications… more
    William C Brown Inc (12/01/25)
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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 ... * * * CACI is looking to hire a Senior Cyber Engineer to join our Spectral...Bachelor's degree in computer science, software engineering, cyber engineering, systems engineering, information technology, or a related field. +… more
    CACI International (01/19/26)
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  • Senior Lead Engineer - Public Sector

    Lumen (Richmond, VA)
    …Candidate must be a US Citizen with an active Department of Defense TOP SECRET clearance **Compensation** This information reflects the anticipated base salary ... 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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  • Geotechnical Engineer , Senior

    BOOZ, ALLEN & HAMILTON, INC. (Reston, VA)
    Geotechnical Engineer , Senior Key Role: Manage the planning, design, construction, and maintenance of physical infrastructures, ensuring compliance with relevant ... facilities + Experience designing, implementing, and monitoring environmental control systems to maintain regulatory and company environmental standards + Experience… more
    BOOZ, ALLEN & HAMILTON, INC. (12/30/25)
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  • Software Engineer

    SAIC (Arlington, VA)
    …applicants must hold an active SECRET clearance and be eligible for Top Secret /SCI clearance. **Desired Qualifications:** A Master's degree in IT, Systems ... Software Engineer to join our dynamic team supporting mission-critical systems in enterprise and government environments. This position requires a Bachelor's… more
    SAIC (01/16/26)
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  • Senior Mechanical Engineer

    Huntington Ingalls Industries (Alexandria, VA)
    …- $192,801.00 Security Clearance: TS /SCI with Poly Level of Experience: Senior This opportunity resides with Warfare Systems (WS), a business group ... within HII's Mission Technologies division. Warfare Systems comprises cyber and mission IT; electronic warfare; and...Technologies, a division of HII, is seeking a high-caliber Senior Mechanical Engineer to join our elite… more
    Huntington Ingalls Industries (01/17/26)
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