• Senior Mechanical Engineer - Security Clearance…

    Jacobs (Arlington, VA)
    …as with local codes. * Write and review sequence of operations for various HVAC systems. * Review various 24/7 mechanical systems and determine which system complies ... of each project. * Calculate life-cycle analysis of various HVAC systems. * Work with team to develop cost...comments based on these requirements. * Participate in quality control and quality assurance during construction. * Assist in… more
    Jacobs (08/28/25)
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  • Water Treatment Technician

    Leidos (Springfield, VA)
    …Technician to maintain and optimize water treatment systems critical to HVAC operations in commercial, industrial, or large institutional buildings. This role ... ensures the efficiency, safety, and longevity of HVAC systems-such as cooling towers, boilers, and chillers-by managing and maintaining proper water chemistry and… more
    Leidos (08/27/25)
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  • Service Technician - Professional

    Hussmann Corporation (Richmond, VA)
    …in refrigeration?** Hussmann's team of Technicians maintain, diagnose, and repair HVAC /R in supermarkets, convenience stores, cold storage facilities. Build your ... repair more complex service calls, check/adjust oil management system and compressor oil level control . + Serve as a mentor to other technicians and lead HVAC /R… more
    Hussmann Corporation (06/25/25)
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  • Senior Mechanical Engineer

    Leidos (Springfield, VA)
    …oversite, inspection, and acceptance of mechanical systems/services, which include HVAC , HVAC controls, chillers, boiler, water distribution, ductwork, ... company will be crucial for success **Primary Responsibilities** : + Perform HVAC , HVAC controls, chillers, boiler, water distribution, ductwork, plumbing, and… more
    Leidos (08/27/25)
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  • Senior Mechanical Engineer

    Leidos (Chantilly, VA)
    …oversite, inspection, and acceptance of mechanical systems/services, which include HVAC , HVAC controls, chillers, boiler, water distribution, ductwork, ... company will be crucial for success. **Primary Responsibilities** : + Perform HVAC , HVAC controls, chillers, boiler, water distribution, ductwork, plumbing, and… more
    Leidos (08/23/25)
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  • Project Manager - Building Automation Systems

    Siemens (Chantilly, VA)
    …School Diploma or state-recognized GED On-the-job experience with: Project management in the HVAC controls industry HVAC industry applications; Must be able to ... understand MEP drawings and specifications, and electrical, network, and control wiring diagrams; prior exposure to industry-standard communication protocols such… more
    Siemens (07/25/25)
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  • Data Center Technician L1

    NTT America, Inc. (Ashburn, VA)
    …include: + Mechanical responsibilities will include chilled water systems and components, HVAC systems such as roof top units, CRAC/CRAH units, and humidification ... Mechanical, Electrical, Fire Life Safety, and Building Monitoring and Control + Analyzes systems to ensure best practices for...+ Water Treatment Systems + VFD's and Pumps + HVAC equipment + CRAC/CRAH's + Humidification Systems + Water… more
    NTT America, Inc. (06/17/25)
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  • Fire Alarm Technician 2

    M. C. Dean (Fairfax, VA)
    …fire alarm systems, including VESDA systems and interconnected components such as elevators, HVAC shutdown, fire doors, and smoke control . . Maintain accurate ... documentation of service activities, including diagnostics, repairs, and system upgrades, completing testing reports in a timely manner. . Provide technical support to junior technicians, collaborating with team members to ensure high-quality service delivery.… more
    M. C. Dean (08/30/25)
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  • Fire Alarm Technician 2

    M. C. Dean (Fairfax, VA)
    …fire alarm systems, including VESDA systems and interconnected components such as elevators, HVAC shutdown, fire doors, and smoke control . + Maintain accurate ... documentation of service activities, including diagnostics, repairs, and system upgrades, completing testing reports in a timely manner. + Provide technical support to junior technicians, collaborating with team members to ensure high-quality service delivery.… more
    M. C. Dean (08/27/25)
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  • Building Automation System Technician (On-Site…

    Chinook Systems (Arlington, VA)
    …Design, Design-Build, Renovation, Retrofit, and modification of a building's BAS, HVAC , SCADA, Electrical, and Energy Management Systems. Duties also include ... Update programming on graphical displays and other computer based interfaces for control systems. + Disseminate information both in writing and verbally, explaining… more
    Chinook Systems (08/07/25)
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