• Plumber

    The County of Los Angeles (Los Angeles, CA)
    …a State of California Fire Extinguisher Test Certificate, and a Grade II Water Treatment Operator License and/or Grade III Distribution License may be required. ... + State of California Fire Extinguisher Test Certificate + Grade II Water Treatment Operator License + Grade III Distribution License 11 As part of the… more
    The County of Los Angeles (12/03/25)
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  • Water Systems Operations Manager

    Stanford University (Stanford, CA)
    Operator certification (D3) required. + California DODW Grade 3 Water Treatment Operator certification (T3) highly desirable. + AWWA Cross Connection Control ... components, including manholes, cleanouts, inlets, lift stations, and stormwater treatment components. + Maintain an appropriate inventory of replacement equipment… more
    Stanford University (11/17/25)
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  • Senior Water Service Worker

    The County of Los Angeles (Los Angeles, CA)
    …may be required for appointment to some positions in this class. A valid Water Treatment Operator Grade T1 Certificate and a valid Water System Distribution ... Operator Grade D3 Certificate issued by the California Department of Health Services may be required for appointment to this position. License Information: All… more
    The County of Los Angeles (10/06/25)
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  • Seasonal Utility Systems Operator Helper

    National Park Service (Yosemite National Park, CA)
    …on work availability and funding. The efficient operation of water treatment facilities and collection systems including lift stations, distribution systems, ... them to the lab; Monitors gauges, meters and control panels of water treatment plants. Assists in performing routine maintenance to septic tanks, including mixing… more
    National Park Service (12/12/25)
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  • Lead Operator (Shift Lead)

    Jacobs (El Segundo, CA)
    …on what matters most to them - people. Jacobs is searching for a dynamic Lead Operator (Shift Lead) to join our team in El Segundo, CA. In this role, you'll provide ... required PPE at all times as well as ensure treatment processes operate in compliance with state and federal...of the site. Principal Areas of Responsibility The Lead Operator will perform, train, and direct the work of… more
    Jacobs (12/09/25)
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  • Wastewater Operator III

    Jacobs (Red Bluff, CA)
    …communities to focus on what matters most to them - people. As a Wastewater Operator , based in Red Bluff, CA, you will be responsible for a variety of tasks ... related to the operation and maintenance of a wastewater treatment plant. Bring your team-focus, adaptability, and commitment to...Highschool Diploma or GED * Ability to obtain an Operator Certification within one year of hire. * Proficiency… more
    Jacobs (11/07/25)
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  • Wastewater Operator -In-Training - Clovis

    Jacobs (San Jose, CA)
    …what matters most to them - people. Jacobs is searching for a dynamic Wastewater Operator -in-Training (OIT) to join our team in Clovis, CA. In this role, you'll work ... under the general direction of the Chief Plant Operator , responsible for the day-to-day operation, maintenance and repair of the wastewater/water treatment plant… more
    Jacobs (10/29/25)
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  • Utilities Operator (R&D Site)

    Mentor Technical Group (Millbrae, CA)
    …routine tasks relative to equipment operations as directed. + Assist Plant Operator in operations of plant controls as instructed. + Performs minor preventative ... water systems within guidelines. + Maintains log of water treatment systems. + Keep work area clean, neat and...stops and secures equipment as required by the plant operator . + Knows and abides by all safety rules… more
    Mentor Technical Group (12/12/25)
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  • Water Operator II

    Jacobs (San Marcos, CA)
    …empowering communities to focus on what matters most to them - people. As an Operator II, based in San Marcos, CA, you'll join a collaborative team ensuring that our ... variety of tasks in the operation of a water treatment plant including maintenance of equipment and quality control...and control adjustments and determine proper rates in the treatment facilities to control flow and processing of drinking… more
    Jacobs (09/16/25)
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  • Chemical Operator (2nd and 3rd Shift)

    Adecco US, Inc. (Santa Fe Springs, CA)
    **Chemical Operator - 2nd & 3rd Shift** Seeking an experienced **Chemical Operator ** to join the **Production Team** at the Santa Fe Springs location. In this ... and accurately across multiple process areas, including etchants, neutralization, and wastewater treatment . + Pump waste drums/totes into storage, set up and fill… more
    Adecco US, Inc. (12/10/25)
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