• Senior Commissioning Engineer

    FST Technical Services (Arlington, VA)
    …including pumps, fans, motors, air ventilation, chillers, boilers, steam distribution , heat absorption, building automation systems , optimization techniques, ... distribution , fire alarm, variable refrigerant flow, and waste-water systems . + Knowledge of construction drawings, specifications, bid process, and ancillary… more
    FST Technical Services (11/14/25)
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  • Environmental Engineer - Water Services…

    CDM Smith (Fairfax, VA)
    …develop basic to highly complex water and/or wastewater treatment facilities, water distribution and sewer systems , pipelines, pump stations, etc. engineering ... support projects focused on stormwater management, wastewater treatment, and water distribution , all while adhering to environmental regulations and industry best… more
    CDM Smith (10/18/25)
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  • TEMPEST Engineer - TS/SCI w/Poly

    General Dynamics Information Technology (Chantilly, VA)
    …TEMPEST testing, TEMPEST worksheets, Red and Black Installation/Separation and Protective Distribution System (PDS) packages to ensure compliance with applicable ... release. Record the documents and task closure in customer database. The TEMPEST engineer will conduct ad hoc testing using equipment from the Government's TEMPEST… more
    General Dynamics Information Technology (11/11/25)
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  • Terrestrial COMSEC Network Engineer

    CACI International (Springfield, VA)
    Terrestrial COMSEC Network Engineer Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS/SCI with Polygraph Employee ... challenging opportunity available for a COMSEC (communications security) Network Engineer supporting an Intelligence Community customer's wide-area (WAN), campus-area… more
    CACI International (10/25/25)
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  • Construction Engineer II EPC

    Matrix Service (Emporia, VA)
    **Description** **Job Summary** The Piping/Mech Constr. Field Engineer II is primarily responsible for providing technical engineering information to company ... of one or more technical disciplines related to piping systems and mechanical equipment within a medium size operation...the final installations. + Participates in the management of distribution and control of all drawings and specifications for… more
    Matrix Service (01/07/26)
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  • Field Service Engineer , Power Control…

    Siemens (Mclean, VA)
    …business, we are dedicated to designing and building custom power control systems and equipment that meet the stringent performance and reliability requirements of ... the world's most respected manufacturers of automatic transfer switches and power control systems . As part of Siemens, a global leader in technology and innovation,… more
    Siemens (01/14/26)
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  • Commissioning Engineer II (Mechanical)

    Quality Technology Services, LLC (Richmond, VA)
    The **Mechanical Commissioning Engineer L2** is responsible for but not limited to Level 3, 4 and 5 commissioning of base building systems and components of a ... validation of connectivity, life safety, Chillers, water loops/components, Cooling distribution equipment, pumps, control valves, split units, humidifiers, sequence… more
    Quality Technology Services, LLC (11/27/25)
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  • Civil Engineer 5 - Industrial

    CDM Smith (Fairfax, VA)
    …layout development, site grading and drainage, hydraulics and hydrology calculations, water distribution systems , collection systems , storage tanks and ... in the world. CDM Smith's Industrial team is seeking an experienced Civil Engineer with a strong background in underground utilities, site grading, and storm water… more
    CDM Smith (01/15/26)
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  • Power & Electronics Engineer

    Motrex LLC (Ruckersville, VA)
    …of Chargers and peripheral equipment, as well as large Battery Energy Storage Systems (BESS). The engineer will be designing low-power circuit card assemblies ... **Overview** The Power & Electronics Engineer will be responsible for the design and...electrical designs, and provide guidance to other electrical engineers, systems engineers, and other stakeholders in multiple geographical locations… more
    Motrex LLC (12/05/25)
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  • Data Center Controls Engineer , DCC…

    Amazon (Manassas, VA)
    …be responsible for troubleshooting, project management, and maintaining the building management system (BMS) and electrical power monitoring system (EPMS). Using ... generators, uninterruptable power sources, diesel generators, electrical switchgear, power distribution units, variable frequency drives, automatic/static transfer switches, chillers… more
    Amazon (11/02/25)
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