• Critical Facility Technician 3 (HVAC SME) - Top…

    M. C. Dean (Manassas, VA)
    …security, telecommunications, life safety, automation and controls, audio visual, and IT systems . MC Dean is headquartered in Tysons, Virginia, and employs more than ... 5,800 professionals who engineer and deploy automated, secure, and resilient power and...and deploy automated, secure, and resilient power and technology systems ; and deliver the management platforms essential for long-term… more
    M. C. Dean (08/30/25)
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  • Electrician (Manassas, VA)

    M. C. Dean (Manassas, VA)
    …at MC Dean, you will join forces with more than 5,800 professionals who engineer and deploy automated, secure and resilient power and technology systems ; and ... system sustainability. Together, we transform the way complex, large-scale systems are designed, delivered, and sustained-enhancing client outcomes, improving lives,… more
    M. C. Dean (08/27/25)
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  • HVAC Specialist

    Amentum (Mclean, VA)
    …+ Must possess a Journeyman HVAC license, or Maryland Grade I Stationery Engineer License, or DC 3rd steam boiler engineer license or equivalent. + Must ... JOB FUNCTION: Performs Journeyman work in the operation, installation, maintenance and...units, CRAC/CRAH, VAV, ductless, split and packaged unit style systems , etc. + Maintain, service, repair, and replace motors,… more
    Amentum (07/30/25)
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  • Electrical Maintenance Technician 3

    M. C. Dean (Charlottesville, VA)
    …security, telecommunications, life safety, automation and controls, audio visual, and IT systems . MC Dean is headquartered in Tysons, Virginia, and employs more than ... 5,800 professionals who engineer and deploy automated, secure, and resilient power and...and deploy automated, secure, and resilient power and technology systems ; and deliver the management platforms essential for long-term… more
    M. C. Dean (08/30/25)
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  • HVAC Technician 3 - TS/SCI with Polygraph

    M. C. Dean (Charlottesville, VA)
    …security, telecommunications, life safety, automation and controls, audio visual, and IT systems . MC Dean is headquartered in Tysons, Virginia, and employs more than ... 5,800 professionals who engineer and deploy automated, secure, and resilient power and...and deploy automated, secure, and resilient power and technology systems ; and deliver the management platforms essential for long-term… more
    M. C. Dean (08/27/25)
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  • Critical Facility Technician 4 - TS/SCI…

    M. C. Dean (Warrenton, VA)
    …security, telecommunications, life safety, automation and controls, audio visual, and IT systems . MC Dean is headquartered in Tysons, Virginia, and employs more than ... 5,800 professionals who engineer and deploy automated, secure, and resilient power and...and deploy automated, secure, and resilient power and technology systems ; and deliver the management platforms essential for long-term… more
    M. C. Dean (08/30/25)
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  • Licensed Commercial Service Technician 1 (Project)

    M. C. Dean (Alexandria, VA)
    …experience in installing UPS systems . + Applicants selected must hold a current Journeyman license or VMET in VA, MD, or WV + Applicants selected will be subject ... life safety, automation and controls, audio visual, and IT systems . MC Dean is headquartered in Tysons, Virginia, and...Tysons, Virginia, and employs more than 5,800 professionals who engineer and deploy automated, secure, and resilient power and… more
    M. C. Dean (08/27/25)
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  • Critical Environments Operator III

    CyrusOne (Sterling, VA)
    …experience at the Journeyman level for Electrical and Mechanical Equipment and systems + Able to respond to equipment alarms, troubleshoot systems through ... reliability of the critical load. Also provides operational support for building systems of other facilities as assigned. Responsible for carrying out maintenance… more
    CyrusOne (08/08/25)
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  • Critical Environments Operator IV

    CyrusOne (Sterling, VA)
    …experience at the Journeyman level for Electrical and Mechanical Equipment and systems + Able to respond to equipment alarms, troubleshoot systems through ... reliability of the critical load. Also provides operational support for building systems of other facilities as assigned. Responsible for carrying out maintenance… more
    CyrusOne (07/18/25)
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  • Control Technician - Electrical

    Amentum (Chantilly, VA)
    …and maintenance; and perform miscellaneous administrative functions as directed by E&C Engineer on site's microprocessor-based central control systems . + Program ... of electrical, electronic, electropneumatic, and electro-mechanical instrumentation and control systems /equipment. specific electrical and controls (E&C) systems more
    Amentum (08/22/25)
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