Heavy Plant Machinery Jobs (NOW HIRING)

Salary: $6,539.00 Monthly
Location : Oahu, HI
Job Type: Full-Time Permanent
Job Number: 302256
Department: Honolulu Board of Water Supply
Opening Date: 03/17/2026
Closing Date: Continuous
Position Information
"Powering the Pumps That Power Our Community"
The Honolulu Board of Water Supply, Water System Operations Division is hiring a Water Plant Maintenance Mechanic toinstall, repair, maintain and overhaul a variety of water pumping plant and related water systems equipment.
What You Will Do:

• Install, maintain, repair, and overhaul water pumping equipment and plant machinery.
• Service pumps and motors, including deepwell turbine and horizontal centrifugal units.
• Inspect and test pumping plant equipment.
• Assists with the installation, maintenance, overhaul and repair of electrical and electronic devices.
• Performs other duties as assigned.

Special Working Conditions:

• Work hours are Monday - Friday, 7:00 AM - 3:30 PM.
• Will work around high voltage electricity and heavy machinery.
• Exposure to chlorine gas and moving machinery.
• Work on scaffolds and elevated surfaces.
• Some equipment is located underground, on roofs, or in remote areas with uneven terrain.

Enjoy excellent employment benefits including generous time off (up to 21 vacation days, 21 sick leave days, and holidays), comprehensive health coverage, retirement plan, career development, and much more! View details about all our available benefits by clicking on the "Benefits" tab at the top of this posting or visiting .
Apply today and take the first step toward a lasting career!
Additional Job Information
Some notifications will be sent via e-mail. You are responsible for monitoring instructions and correspondence from this office by checking your email account in a timely manner. To ensure proper delivery, please make sure you:
- use a valid e-mail account;
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- are subscribed to e-mail notices;
- check your spam folders; and
- add and to your contact list.
Notifications may also be sent via text message if opted into the service. Data and text messaging fees apply.
Minimum Qualification Requirements
At time of application, you must be a citizen, national or permanent resident alien of the United States or a non-citizen eligible under federal law for unrestricted employment.
EXPERIENCE REQUIREMENT:
Experience and/or training of sufficient scope and quality to competently perform the journey level skills and duties of this position, or which show equivalent competence in the repair and overhaul of pumping plant, power plant, marine engine room, or related industrial type equipment, or in the repair and overhaul of rotating machinery such as motorized vehicles, heavy motorized vehicles and equipment, construction equipment, aircraft, and heavy industrial equipment and machinery.
Examples of Qualifying Experience: Airplane Mechanic, Fleet/Auto Mechanic, Heavy Construction Equipment Mechanic, Machinist, Pumping Plant Mechanic, Industrial Plant Mechanic, Power Plant Mechanic, and Millwright.
Must be able to:

• Perform maintenance and repair of electrically operated pumps and related equipment, including altitude, cone, and pressure reducing valves, chlorinators, and electric motors.
• Operate mechanic's hand tools and shop equipment such as drill presses, electric cutters, grinders, pipe threaders, welding equipment, and sanders to repair and overhaul motors, pumps, valves, and gauges.
• Maintain and repair electrical pumping equipment.
• Apply basic principles of electricity and hydraulics.
• Diagnose mechanical and electrical defects in pumping plant equipment.
• Supervise staff and maintain positive working relationships.

LICENSE REQUIREMENT:
Possession of an appropriate valid driver's license (automobile/Type 3), prior to appointment.
Examination Process
If you qualify for the position, your name will be eligible for consideration for the current vacancy and future job openings with this job title. Screening will be based on the education, experience, and other job-related information provided in your application. Failure to provide sufficient information may result in your application being rejected or your receiving a lower rating. All information provided on an application is subject to verification. As applicable, false or misleading statements or omissions of material facts are grounds for disqualification and/or termination of employment with the City and County of Honolulu.
What are the benefits of being a City Employee?
-- Vacation: Employees may earn up to 21 days per year.
-- Sick Leave: Employees may earn up to 21 days per year.
-- Holidays: 13 days a year; 14 days during election years.
-- Training and Development: Computer, career, and personal enhancement courses are offered; curriculum designed for employee, supervisory, and management development.
-- Medical, Dental, Prescription Drug, and Vision Care: Various health insurance plans are available. Premiums are subsidized by the City and deductible from pre-tax income for participants of the Premium Conversion Plan (PCP).
-- Group Life Insurance: No cost for eligible employees.
-- Deferred Compensation Plan: Invest in your future...choose to defer part of your pre-tax income for retirement.
-- Retirement Plan: The Employees' Retirement System (ERS) of the State of Hawaii administers retirement benefits for State and County employees. Employee contribution required.
-- Commuter Choice Pre-Tax Benefits: Employees may designate certain transportation expenses (TheBus, LOTMA, Vanpool Hawaii, etc.) as a pre-tax item
-- Parking: Some job locations offer parking on-site; others may have access to parking at low monthly rates.
-- Direct Deposit: Direct deposit of paychecks to a designated financial institution is available.
-- Employee Assistance Program (EAP): Confidential, professional counseling and resource referral.
-- Public Service Loan Forgiveness (PSLF) Program: A federal program forgiving the balance of federal student loans for individuals working in public service. For program requirements and additional information, please visit:
To view additional information, please visit our page.
* All benefits as stated above, are subject to eligibility requirements and to legislative and/or negotiated changes. Individuals are responsible for any related fees or charges that may apply.
01
APPLICATION GUIDELINES & INSTRUCTIONS: When applying for this position, please thoroughly complete the Education, Work Experience, and Supplemental Question sections of your application. The information provided in these sections, particularly the job-specific Supplemental Questions, will be used to determine whether you meet the qualification requirements for the job and your final score. Failure to provide detailed and complete information or submit any required documentation may result in your application being rejected or you receiving a lower score.
Please do not submit resumes in place of completing any of these sections.
List each work experience separately, do not combine jobs. For example, if you've held more than one position or job level(s) for the same employer, they should be listed and described separately so that the resulting changes in your duties and responsibilities are accurately reflected. If any part of your experience is unclear, you may be asked to provide a copy of your official job/position description (PD).
In general (unless otherwise specified on the job posting), the following criteria is utilized for evaluation of the Minimum Qualification Requirements:

• Substitute, temporary assignment, internship or volunteer experience requires an official letter of verification from your supervisor and/or Human Resources department. The letter should include the job title, employment dates, number of hours worked, a description of the duties performed, and a contact name and phone number.
• Concurrent or overlapping experiences and/or education will NOT be double credited.
• Professional experience refers to work that generally involves independent critical thinking, solving complex, non-routine problems, preparing reports, and interpreting and applying technical information.
• Most work experience as an intern will NOT be creditable as equivalent to professional experience.
• Calculation of experience will be based upon a full-time, 40-hour work week. Part-time experience will be pro-rated. Hours worked in excess of 40 hours/week will not be extra credited.
  
  1. Example: Twelve months of experience at 20 hours/week will be pro-rated to six months of experience.
     
  2. Example: Twelve months of experience at 60 hours/week will be credited as one year of experience, NOT one and a half years.
• All requirements for the position must be met at the time of application or by the closing date of the recruitment, unless otherwise noted.

Possession of the required amount of experience will not in and of itself be accepted as proof of qualification for the position. The overall experience must be of such scope and responsibility as to conclusively demonstrate that you have the ability to perform the duties of the position.
Any information you submit is subject to verification. Supporting documents must be either electronically attached to your application or submitted to our office at: Department of Human Resources, 650 South King Street, 10th Floor, Honolulu, HI 96813. Documents should be identified by job title and recruitment number.
If you previously submitted education documents (e.g., transcripts, diploma, etc.) to our office, for most cases you are not required to resubmit them. Supporting documents with an expiration period (e.g., driver's license, Department of Transportation medical certificate, etc.) will need to be submitted with each application to verify possession of a current license or certificate at the time specified on the job posting.

• I certify that I have read and understand the above statements.

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WATER PUMPING PLANT/SYSTEMS EXPERIENCE: For each position you listed in the Work Experience section that qualifies you for Water Plant Maintenance Mechanic, describe in detail your major duties in installing, repairing, maintaining, and overhauling a variety of water pumping plant and related water systems equipment. For each job, include a description of the types of equipment you worked with, and describe the installation, repair, maintenance, and overhaul work you performed.
If you do not have this experience, indicate "N/A" in the space below.
03
INDUSTRIAL-TYPE EQUIPMENT EXPERIENCE: For each position you listed in the Work Experience section that qualifies you for Water Plant Maintenance Mechanic, describe in detail your major duties in repairing and overhauling pumping plant, power plant, marine engine room, or related industrial-type equipment. For each job, include a description of the types of equipment you worked with, and describe the repair and overhaul work you performed.
If you do not have this experience, indicate "N/A" in the space below.
04
OTHER RELATED MECHANIC EXPERIENCE: For each position you listed in the Work Experience section that qualifies you for Water Plant Maintenance Mechanic, describe in detail your major duties in repairing and overhauling rotating machinery such as motorized vehicles, heavy motorized vehicles and equipment, construction equipment, aircraft, and heavy industrial equipment and machinery. For each job, include a description of the types of equipment you worked with, and describe the repair and overhaul work you performed.
If you do not have this experience, indicate "N/A" in the space below.
Required Question