• Outlier AI (Arlington, VA)
    …fluent English to contribute their expertise toward training and refining cutting-edge AI systems . Adopt a user mindset to produce natural data to meet the realistic ... needs you have or would use AI for. Use the tool of rubrics to address user needs in a structured way. Evaluate AI outputs by reviewing and ranking reasoning and problem-solving responses from large language models. Contribute across projects depending on your… more
    job goal (12/14/25)
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  • Mechanical Engineer

    Fairfax County Sheriff's Office (Fairfax, VA)
    …plumbing systems , and building automation systems . + As licensed professional mechanical engineer signs and seals own work product. + Ensures the timely ... Mechanical Engineer ( Engineer IV)...+ Experience for designing and construction of life cycle mechanical systems and component replacement in occupied… more
    Fairfax County Sheriff's Office (12/15/25)
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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 deep technical expertise, strategic vision, and… more
    Leidos (10/27/25)
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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...not limited to, the following: + Responsible for multiplemechanical systems , to include analysis and reporting ofmechanical system more
    Nightwing (12/05/25)
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  • Mechanical Engineer - PM

    Old Dominion University (Norfolk, VA)
    Posting Details Working Title Mechanical Engineer - PM Position Number 00927A Department PLANNING/ESTIMATING Location Norfolk, VA Type of Position Classified ... Full Time EEO Category B Professionals Job Description The mechanical engineer , a member of the Facilities...and type of experience Extensive experience in design of mechanical systems and/or construction project management. Additional… more
    Old Dominion University (10/24/25)
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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,...** to support the planning, design, and analysis of mechanical systems -primarily Heating, Ventilation, and Air Conditioning… more
    Leidos (10/23/25)
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  • Facilities Mechanical Engineer

    Leidos (Chantilly, 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...and regulatory authorities. + Familiarity with Facility Management Control Systems (FMCS). + Active Professional Engineer (PE)… more
    Leidos (12/06/25)
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  • Lead Mechanical Engineer

    EMCOR Group (Springfield, VA)
    …integrated service providers. **Job Summary** EMCOR Government Services is seeking a Lead Mechanical Engineer (ME) to serve as the Subject Matter Expert (SME) ... for all mechanical systems supporting a major customer in...Advises mechanical technicians in troubleshooting and resolving mechanical system malfunctions. + Develops, implements and… more
    EMCOR Group (10/29/25)
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  • Lead Mechanical Engineer (Buildings)

    WSP USA (Arlington, VA)
    This Opportunity WSP is currently initiating a search for a **Lead Mechanical Engineer ** for our **Arlington, VA** office. Provides high level technical ... for multi-site/phase due diligence, design, development, building, testing, and inspecting of mechanical systems on building and construction projects in the… more
    WSP USA (10/18/25)
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  • Specialist, Aerospace Mechanical

    L3Harris (Ashburn, VA)
    …cyber domains in the interest of national security. Job Title: Specialist, Aerospace Mechanical Engineer Job Code: 31930 Job Location: Ashburn, VA Job Schedule: ... candidates Job Description: We are seeking a highly skilled Mechanical Engineer to join our dynamic team...required, to include experience with fabrication and assembly of mechanical systems . + Provide material review board… more
    L3Harris (12/10/25)
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