• Mechanical Engineer (Starshield)

    SpaceX (Hawthorne, CA)
    Mechanical Engineer (Starshield) Hawthorne, CA Apply SpaceX was founded under the belief that a future where humanity is out exploring the stars is fundamentally ... the ultimate goal of enabling human life on Mars. MECHANICAL ENGINEER (STARSHIELD) Starshield leverages SpaceX's Starlink...technical discipline + Ability and willingness to obtain a Top Secret clearance + Solid understanding and… more
    SpaceX (10/07/25)
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  • Mechanical Engineer

    ManTech (Crane, IN)
    ManTech seeks a motivated, career and customer-oriented ** Mechanical Engineer ** to join our team in **Crane, Indiana.** This is an onsite position. As a core ... Mechanical Engineer II on our innovative team,...**Clearance Requirements:** + Must have a current and active TS / SCI clearance **Physical Requirements:** + The person… more
    ManTech (08/13/25)
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  • Facilities Mechanical Engineer

    Leidos (Chantilly, VA)
    **Description** **Job Description** We are seeking a highly experienced **Senior Mechanical Engineer ** to lead the **design, maintenance, and configuration ... design drawings, submittals and prepare site-specific specifications. **Basic Qualifications** + TS / SCI with Polygraph + Requires Bachelors degree in … more
    Leidos (10/16/25)
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  • Mechanical Engineer w/OCONUS Travel

    Nightwing (Sterling, VA)
    …community, defense, civil, and commercial markets. Nightwing is seeking a highly motivated Mechanical Engineer to join a mature program in the Sterling VA ... location. The qualified Mechanical Engineer will support a very dynamic...analysis for the Customer's mission critical OCONUS facility Clearance: TS / SCI with CI Poly; must be willing… more
    Nightwing (09/05/25)
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  • Scientist, Opto- Mechanical Engineer

    L3Harris (Wilmington, MA)
    …+ Able to obtain and maintain a US Security Clearance Preferred Additional Skills: + Top Secret SCI /DoD clearance preferred + Proficiency in design and 3D ... and cyber domains in the interest of national security. Job Title: Scientist, Opto- Mechanical Engineer Job Code: 26771 Job Location: Wilmington, MA Job Schedule:… more
    L3Harris (08/01/25)
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  • Lead, Mechanisms Mechanical Engineer

    L3Harris (Wilmington, MA)
    …sea and cyber domains in the interest of national security. Job Title: Lead, Mechanical Engineer - Mechanisms Job Code: 29834 Job Location: Wilmington, MA Job ... L3Harris is seeking a highly skilled and dynamic senior Mechanical Engineer to support customer-funded programs and...required + Able to obtain and maintain a US TS / SCI Security Clearance Preferred Additional Skills: +… more
    L3Harris (10/12/25)
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  • Senior Mechanical Engineer - active…

    V2X (Mclean, VA)
    …position is required to be onsite. The position requires US Citizenship and an active DoD Top Secret with SCI clearance and the ability to obtain and ... challenges with integrity, respect, responsibility, and professionalism. The Senior Mechanical Engineer will provide design and implementation...The position requires US Citizenship and an active DoD Top Secret with SCI clearance… more
    V2X (10/07/25)
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  • Mechanical Engineer

    KBR (Bethesda, MD)
    Title: Mechanical Engineer Title: Mechanical EngineerBelong. Connect. Grow. with KBR! KBR's National Security Solutions team provides high-end engineering ... award KBR is seeking a highly motivated and career-oriented Mechanical Engineer to join our team supporting...Other duties as required. Qualifications Required: + Clearance Requirement: TS / SCI with willingness to sit for a… more
    KBR (09/23/25)
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  • Lead, Structural Mechanical Engineer

    L3Harris (Wilmington, MA)
    …cyber domains in the interest of national security. Job Title: Lead, Structural Mechanical Engineer Job Code: 29838 Job Location: Wilmington, MA Job Schedule: ... technical leaders across multidisciplinary teams of engineers to perform mechanical analysis tasks on complex opto- mechanical systems...analysis + Ability to obtain and maintain a US TS / SCI security clearance Preferred Additional Skills: +… more
    L3Harris (10/12/25)
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  • Principal Mechanical Engineer

    BAE Systems (Hudson, NH)
    **Job Description** We are seeking a talented and experienced Principal Mechanical Engineer with experience in the area of electronic packaging for the design ... machining, casting, and 3D printing. Able to obtain a TS and SCI clearance. Clear communication -...available based on position level and/or job specifics. **Principal Mechanical Engineer ** **115585BR** EEO Career Site Equal… more
    BAE Systems (09/09/25)
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