• Mechanical Engineer 3

    M. C. Dean (Vienna, VA)
    …with increasing project size, scope and complexity, the need to recruit a Mechanical Engineer for the Critical Infrastructure solutions (CIS) business unit. ... Tysons, Virginia, and employs more than 5,800 professionals who engineer and deploy automated, secure, and resilient power and...Matter Expert in the areas of design and specify mechanical and plumbing systems including but not limited to… more
    M. C. Dean (08/30/25)
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  • Engineer Mechanical 3

    HII (Alexandria, VA)
    …that's cool? Keep reading: The Role Researches, plans, designs and develops mechanical products and systems such as instruments, controls, robots, engines, machines ... and mechanical , thermal hydraulic or heat transfer systems for production,...5 years of relevant exempt experience; Master's Degree and 3 years of relevant professional experience; Ph.D. and 0… more
    HII (11/13/25)
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  • Mechanical Engineer

    Fairfax County Sheriff's Office (Fairfax, VA)
    Mechanical Engineer ( Engineer IV)...PE responsible for design and sealing of commercial building mechanical and plumbing system projects. + 3 ... Print (https://www.governmentjobs.com/careers/fairfaxcounty/jobs/newprint/5104001) Apply  Mechanical Engineer ( Engineer IV) Salary $87,024.91 - $145,041.94… more
    Fairfax County Sheriff's Office (11/02/25)
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  • Facilities Mechanical Engineer

    Leidos (Chantilly, VA)
    **Description** **Senior Mechanical Engineer ** Leidos is seeking a seasoned and innovative Senior Mechanical Engineer to lead the design, maintenance, ... and configuration management of complex building mechanical systems across a secure site. This role demands...experience, or Master's with 6-10 years. + **Registered Professional Engineer (PE)** in good standing or **ability to obtain… more
    Leidos (10/31/25)
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  • Senior Mechanical Engineer , Mission…

    JE Dunn Construction Company (Washington, DC)
    …diverse team of industry professionals._ **Role Summary** The M/E Engineer 3 will complete increasingly complex mechanical , electrical and field construction ... Senior Mechanical Engineer , Mission Critical, Traveler Location: Kansas City, MO, US, 64106Cleveland, OH, USDallas, TX, US, 75254Mesa, AZ, USClarksville, TN,… more
    JE Dunn Construction Company (10/22/25)
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  • Facilities Mechanical Engineer

    Leidos (Springfield, VA)
    **Description** Leidos is seeking an experienced Facilities Mechanical Engineer to lead the design, maintenance, and configuration management of building ... mechanical systems across mission-critical sites. This role demands deep...with Facility Management Control Systems (FMCS). + Active Professional Engineer (PE) license or ability to obtain licensure within… more
    Leidos (11/05/25)
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  • Mechanical Engineer

    Leidos (Springfield, VA)
    **Description** **Leidos - Multi-Domain Solutions (MDS) Division** **Position: Junior Level Mechanical Engineer ** Leidos and its Multi-Domain Solutions (MDS) ... division are seeking a highly motivated **Junior Mechanical Engineer ** to support the planning, design,...this job requisition will remain open for at least 3 days with an anticipated close date of no… more
    Leidos (10/23/25)
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  • Mechanical Engineer

    Sealing Technologies (Columbia, MD)
    …services. Position Overview: Sealing Technologies, a Parsons Company, is looking for a Mechanical Engineer to join our dynamic and fast-paced Product Development ... in mechanical engineering or related discipline. + 1 to 3 + years of mechanical design experience, preferably in a product development or defense industry… more
    Sealing Technologies (11/20/25)
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  • Mechanical Engineer

    Leidos (Chantilly, VA)
    **Description** ** Mechanical Engineer - Mission-Critical Facilities Design** Leidos is seeking a driven and detail-oriented Junior level Mechanical ... to support the planning, design, and analysis of mechanical systems-primarily Heating, Ventilation, and Air Conditioning (HVAC)-for secure,...this job requisition will remain open for at least 3 days with an anticipated close date of no… more
    Leidos (11/05/25)
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  • Lead Mechanical Engineer , PE

    V2X (Springfield, VA)
    …is contingent based on contract award. #clearance Responsibilities V2X is seeking a lead Mechanical Engineer (ME) / Professional Engineer (PE) to serve as ... and enhance readiness. Aligned around a shared purpose, our $ 3 .9B company and 16,000 people work alongside our clients,...Mechanical Engineering or related engineering discipline. + Professional Engineer (PE) registration in one of the 50 US… more
    V2X (08/31/25)
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