Duty Plant Operator

Posting Date 03/19/26 Application Deadline 04/02/26 Pay Range $27.50 - $39.00 hourly Salary offers are based on the candidate's equivalent experience and internal equity with other employees within the same job classification. The position is eligible for overtime compensation for all hours worked over 40 in the designated workweek. Job Type Unclassified Department Facilities Management About the Position Operations and Maintenance is a customer-driven support division that provides day-to-day maintenance and ensures the successful operation of all County Facilities. The Duty Plant Operator operates and monitors the 24-hour Facilities Automation System (FAS). This position initiates corrective action in trouble or emergency situations by dispatching appropriate staff for HVAC, mechanical, and boiler equipment, fire and elevator alarms, and other services. Schedule: Sunday through Wednesday, 2:00 PM to 12:00 AM, with on-call responsibilities. This is an overnight position and qualifies for a shift differential. About Us As the landlord for all facilities owned by Maricopa County, the Facilities Management Department is responsible for the planning, design, construction, maintenance, and operations of more than 200 facilities comprised of over 10 million square feet. Facilities Management is made up of a collaborative team that provides and performs various functions to meet the facility-related needs of all Maricopa County Departments. Our broad range of services includes various aspects of the ongoing operations and maintenance of all County-owned facilities, management of all facility projects, and in-house design services. Proud to Offer Work with a greater purpose Tuition reimbursement Exceptional work-life balance Opportunities for growth and development within Maricopa County Low-cost, high-value healthcare for you and your qualifying dependents Child care benefits, including access to our on-site center, Maricopa County Kids Club, dedicated to serving Maricopa County families Paid vacation, sick time, and parental leave Extensive wellness program, including an incentive Enrollment in the Arizona State Retirement System, a defined retirement benefit requiring a 12% monthly contribution rate that includes a 100% employer match on Day 1 Want to learn more about the County's Qualifying and Compensation Philosophy? Follow this link to learn more! Work With Us | Maricopa County, AZ We Require Three years of experience operating and maintaining equipment for building systems, such as HVAC, boilers, combustion controls, water treatment systems, or performing stationary engineer duties High school diploma or GED Completion of an apprenticeship program or vocational education may substitute for up to one year of the experience requirement Other Requirements Successful candidates must currently possess, or have the ability to obtain, a valid Arizona driver's license by the time of hire Must complete a Prison Rape Elimination Act (PREA) and MCSO background investigation and TOC certification to access County detention facilities We Also Value Experience in industrial or heavy commercial, institutional/detention environment Experience in the use of Facilities Automation Systems (FAS) Trained in the use of Maximo or other computer-based work order management systems Job Contributions Operate PCs, boilers, air handlers, air compressors, domestic water system, chilled water system, water softeners, heating system, air movement equipment, sewer injection systems Input and dispatch routine and emergency work orders using the maintenance management system and Windows software. Maintains constant verbal communication with clients and field technicians, monitors and controls temperatures utilizing the Facilities Automation System computer, notifies proper authorities and management staff on emergency calls Monitor HVAC, chemical treatment/refrigerant alarms, elevator and fire alarms, and respond appropriately Monitor and respond to building indoor air quality issues Maintain the duty operator log and a variety of other daily logs Collect and analyze data to ensure the continuous operation of pump systems and air handling equipment throughout the administration, courts, jails, and other buildings of the County Work assigned shift to support the 24-hour per day, 7-day a week operation of the call center and maintain regular and reliable attendance Call out on-call personnel during after-hours emergency situations Other job duties as assigned Working Conditions Exerting 50 - 100 pounds occasionally, 10 - 25 pounds frequently, or up to 10 - 20 pounds constantly Incumbent may be subjected to extreme temperatures, wetness/humidity, respiratory hazards, and noise and vibration Incumbent may be subjected to moving mechanical parts, vibrations, fumes, odors, dust, poor ventilation, chemicals, oils, extreme temperatures, inadequate lighting, workspace restrictions, intense noises, and travel The work will occur in an office and field environment. While performing the duties & responsibilities, the employee may be exposed to loud noise, noxious odors, unsanitary conditions, chemicals, electricity, moving mechanical parts, varying weather conditions, and other related conditions and situations. Position is subject to atmospheric conditions: fumes, odors, dust, mists, gases, or poor ventilation This position may require a rotating on-call/stand-by schedule, including nights, weekends, and holidays Special working environments include, but are not limited to, adult and juvenile detention facilities; medical facilities, both detention and public health; forensic facilities; courts; and related justice facilities Protective Equipment Required Must be capable of using various forms of personal protective equipment (PPE) as required to fulfill the requirements of the position Selection Procedure Consideration will only be given to candidates who submit online applications Candidates will be contacted primarily through email and their Workday online application profile Must pass a pre-employment background and/or fingerprint investigation as required by statute or policy, including drug and alcohol testing requirements for positions designated as safety-sensitive Maricopa County is an equal opportunity employer and is committed to providing equal employment opportunities to all applicants. If you require a reasonable accommodation during the application process or to perform the essential functions of the position under the Americans with Disabilities Act (ADA), please contact to initiate the interactive process. Apply Now!

Created: 2026-04-03