Salary : $56,570.16 - $72,212.88 Annually
Location : Los Angeles County, CA
Job Type: Full time
Job Number: W7193N
Department: INTERNAL SERVICES
Opening Date: 09/04/2026
Position/Program InformationWhen to Submit Your Application:The application filing period will begin on Tuesday, September 8, 2026, at 8:00 a.m. (PT) - Continuous. We will keep accepting applications until the position is filled. The application window may close unexpectedly once we have enough qualified candidates.
Type of Recruitment:We welcome applications from anyone.
Withhold Information:No withhold will be allowed. Required experience must be fully met at the time of filing and clearly indicated on the application.
Why work for us?With almost 10 million residents, Los Angeles County is the most populous county in the nation! As the largest employer in Southern California with over 100,000 employees in 39 departments, we provide vital and diverse public services like law enforcement, property assessment, public health protection, water conservation, and cultural activities.
The County has more than 2,100 different job types, offering a lifetime of opportunities and careers! We are dedicated professionals committed to preserving the dignity and integrity of the workplace as well as protecting the rights of each employee. Join us and discover one of the strongest public-sector benefits packages in the county with a rich selection of health care options, robust retirement plans and the flexibility to work, relax, and rejuvenate to reach your fullest personal and professional potential.
For more information about our amazing benefits, please visit us here:
Essential Job Functions - Assists journey level stationary engineers in the operation, maintenance, and repair of high or low-pressure boilers or high temperature hot water boilers and auxiliary equipment.
- Operates, cleans, services, and makes minor adjustments and repairs to a variety of stationary plant equipment such as water heaters and softeners, pumps, compressors, fans, electric motors, and gasoline or diesel stationary engines.
- Makes routine inspection tours to check operation and condition of equipment such as brine circulating systems, reservoirs, pumps, temperature and pressure controls, and water and steam lines.
- Maintains plant facilities in a clean and orderly condition.
- Maintains routine service records and logs.
- Briefly watches boiler fires, maintains proper pressure, temperatures, water levels, etc., and assists in fuel changeover.
- Services, maintains, and operates pumps, motors, boilers, turbines, cooling towers, refrigeration equipment, and other associated power plant equipment.
For more information, please view the classification specification:
Requirements Requirements to Qualify:One (1) year of experience within the last three (3) years assisting in the operation and maintenance or repair of mechanical or electrical equipment used for providing heat, ventilation, power, refrigeration or air conditioning, or in the repair of electrical, gasoline, or diesel-powered equipment.
License:A valid California Class C Driver License or the ability to utilize an alternative method of transportation when needed to carry out job-related essential functions.
Physical Class:3 - Moderate: This class requires that the incumbent stand or walk most of the time with bending, stooping, squatting, twisting, reaching, working on irregular surfaces, occasional lifting of objects weighing over 25 pounds, and frequent lifting of 10-25 pounds.
Desirable Qualifications:Additional points will be awarded for applicants who possess the following Desirable Qualifications.
- Coursework or certificate* of program completion in HVAC, mechanical, or electrical technology
- Coursework or certificate* of program completion in Steam Plant Operations.
- Experience in the operation, servicing, monitoring, and maintenance of high- or low-pressure steam boilers, high-temperature hot water boilers, or auxiliary heating equipment
- Experience in the operation, maintenance, and repair of central refrigeration plants, large-scale HVAC/R systems, or industrial cooling equipment
- An Environmental Protection Agency (EPA) approved Universal Technical Certificate** in compliance with Federal license requirements as provided in Chapter V, Section 608.
*To receive credit for your coursework, include a legible copy of all relevant official documents, including your diploma, transcript, or letter/certificate in your application or email it to within five (5) calendar days of filing your application. The document should show the date of completion, number of units and the type of unit system used (e.g., semester, quarter) and be in English. If not in English, then translation is required.
**To receive credit for your certification, include a legible copy of the certificate or email it to within five (5) calendar days of filing your application.
We do not accept password-protected documents. Ensure documents are unlocked before attaching to your application or sending to the exam analyst.Additional InformationOur Assessment Process:This assessment type will evaluate the training, experience, and education you list on a questionnaire and assign a score based on a standardized scoring system. This part of the assessment is worth 100% of your total score and assesses: Training and Experience and Desirable Qualifications.
Applicants must receive a passing score of 70% or higher on the assessment to be added to the list.
Eligibility and Vacancy Information:Applicants who passed the assessment(s) are placed on a list in the order of their score group for a period of twelve (12) months. Applications will be processed as they are received and added to the list accordingly. The resulting eligible list for this examination will be used to fill a vacancy located in the Power Plant Operations Section of the Internal Services Department.
Application and Filing InformationWe only accept applications filed online. Applications submitted by U.S. mail, fax, or in person are not accepted. Apply online by clicking on the "Apply" green button at the top right of this posting. This website can also be used to get application status updates.
Please fill out the application completely. Provide relevant job experience including employer's name and address, job title, beginning and ending dates, number of hours worked per week, and description of work performed.
We may verify information included in the application at any point during the examination and hiring process, including after an appointment has been made. Falsification of information could result in refusal of application or rescission of appointment. Copying verbiage from the Requirements or class specification as your work experience will not be sufficient to demonstrate meeting the requirements. Doing so may result in an incomplete application and may lead to disqualification.
We will send notifications to the email address provided on the application, so it is important that a valid email address is provided. If choosing to unsubscribe or opt out from receiving our emails, it is possible to view notices by logging into governmentjobs.com and checking the profile inbox. It is every applicant's responsibility to take steps to view correspondence, and we will not consider claims of missing notices to be a valid reason for re-scheduling an exam part. Register the below domains as approved senders to prevent email notifications from being filtered as spam/junk mail.
New email addresses need to be verified. This only needs to be done once per email address and can be done at any time by logging in to governmentjobs.com and following the prompts. This is to improve the security of the online application and to prevent incorrectly entered email addresses.
Have questions about anything listed above?
Contact us:
Exam Number: W7193N
Department Contact Name: Mark Navarro
Department Contact Email: California Relay Services Phone: ADA Coordinator Phone: Teletype Phone: (Alternate Teletype Phone: ) COUNTY OF LOS ANGELES Employment InformationAny language contained in the job posting supersedes any language contained below.This document is intended to provide general information about the recruitment process of the County of Los Angeles. Applicants with questions about a specific job posting should contact the exam analyst listed on the posting.
Equal Employment Opportunity/Non-Discrimination Statement:The County of Los Angeles is an Equal Employment Opportunity Employer and is committed to non-discrimination in the County workforce, regardless of age (40 and over); ancestry; color; ethnicity; religious creed; protected family or medical leave status; disability; marital status; medical condition; genetic information; military and veteran status; national origin; race ; sex; gender; sexual orientation; or any other characteristic protected by State or federal law. For more information, please visit:
Testing Accommodations for Applicants:The County of Los Angeles complies with all federal and state disability laws and makes reasonable accommodations for qualified applicants and employees with disabilities. If a reasonable accommodation is needed to participate in the job application process, please contact the testing accommodation coordinator listed on the job posting. Hearing impaired applicants with telephone teletype equipment may leave messages by calling the teletype phone number on the job posting. For more information on accommodations, please visit:
Fair Chance:The County of Los Angeles is a Fair Chance employer. Except as otherwise permissible under applicable laws, you will not be asked to provide information about conviction history unless you receive a conditional offer of employment. The County will make an individualized assessment of whether your conviction history has a direct and adverse relationship with the specific duties of the job, and will also consider potential mitigating factors, which may include, but is not limited to, evidence and extent of rehabilitation, recency of the offense(s), and age at the time of the offense(s). If asked to provide information about conviction history, any convictions or court records which are exempted by a valid court order do not have to be disclosed. Qualified applicants with arrest or conviction records will be considered for employment in accordance with County Fair Chance Policies and the Fair Chance Act (Gov. Code Section 12952).
Employment Eligibility:Final appointment is contingent upon verification of U.S. citizenship or the right to work in the United States.
Career PathFinder:Resources to help current and prospective employees plan a career with Los Angeles County are available. To explore career paths to and from nearly all job titles, please visit our interactive Career PathFinder application at
Veteran's Credit:Pursuant to the County Charter and County policy, in all open competitive examinations (i.e., examinations open to everyone), the County of Los Angeles will add a credit of 10 percent of the total credits specified for such examination to the final passing score of an honorably discharged veteran, as well as the spouse of a deceased or disabled veteran, who served in the Armed Forces of the United States under specific conditions.
For more information on veteran's credit, please visit:
Revised September 2025
For detailed information, please click
01
The response you provide on supplemental questions will be evaluated and used to determine your eligibility to participate in the next phase of the assessment process. Be as specific as possible and include all information as requested. Please note that all information is subject to verification at any time in the examination and hiring process. Falsification of any information may result in disqualification or dismissal.
Comments such as "see resume or application" will not be considered as a response.
- I acknowledge that I have read and understood the above instructions.
02
Many important notifications will be sent electronically to the email address provided on the application. It is important that you provide a valid email address. Please add , and to your email address and list of approved senders to prevent email notification from being filtered as spam/junk/clutter mail. Applicants can opt out of emails from Los Angeles County. Regardless of your email subscription settings, you may always check for notifications by logging into and viewing your profile inbox, which saves a copy of all emailed notices. It is your responsibility to take the above steps to view correspondence.
- I understand the above information and instructions.
03
Do you have one (1) year of experience within the last three (3) years assisting in the operation and maintenance or repair of mechanical or electrical equipment used for providing heat, ventilation, power, refrigeration, or air conditioning, or in the repair of electrical, gasoline, or diesel-powered equipment?
04
If you indicated Yes to question 3, include ALL of the following information for each relevant position held:
1. Name and address of employer
2. Positions(s)/Titles(s) Held
3. Date(s) From: (MM/DD/YYYY) - Date To: (MM/DD/YYYY)
4. Hours worked per week
5. Describe your experience in detail
If you do not possess this work experience, please indicate "N/A. "Comments such as "see resume or application" will not be considered as a response.
Failure to provide ALL the requested information above may result in disqualification of your application.
05
Do you have a certificate of completion or coursework completed in HVAC, mechanical, or electrical technology?
If yes, to receive credit for your coursework, include a legible copy of all relevant official documents, including your diploma, transcript, or letter/certificate in your application or email it to within five (5) calendar days of filing your application. The document should show the date of completion, number of units and the type of unit system used (e.g., semester, quarter) and be in English. If not in English, then translation is required.
We do not accept password-protected documents. Ensure documents are unlocked before attaching to your application or sending to the exam analyst.
06
Do you have a certificate of completion or coursework completed in Steam Plant Operations?
If yes, to receive credit for your coursework, include a legible copy of all relevant official documents, including your diploma, transcript, or letter/certificate in your application or email it to within five (5) calendar days of filing your application. The document should show the date of completion, number of units and the type of unit system used (e.g., semester, quarter) and be in English. If not in English, then translation is required.
We do not accept password-protected documents. Ensure documents are unlocked before attaching to your application or sending to the exam analyst.
07
Do you have experience in the operation, servicing, monitoring, and maintenance of high- or low-pressure steam boilers, high-temperature hot water boilers, or auxiliary heating equipment? If so, include ALL of the following information for each relevant position held:
1. Name and address of employer
2. Positions(s)/Titles(s) Held
3. Date(s) From: (MM/DD/YYYY) - Date To: (MM/DD/YYYY)
4. Hours worked per week
5. Describe your experience in detail
If you do not possess this work experience, please indicate "N/A. "Comments such as "see resume or application" will not be considered as a response.
08
Do you have experience in the operation, maintenance, and repair of central refrigeration plants, large-scale HVAC/R systems, or industrial cooling equipment? If so, include ALL of the following information for each relevant position held:
1. Name and address of employer
2. Positions(s)/Titles(s) Held
3. Date(s) From: (MM/DD/YYYY) - Date To: (MM/DD/YYYY)
4. Hours worked per week
5. Describe your experience in detail
If you do not possess this work experience, please indicate "N/A. "Comments such as "see resume or application" will not be considered as a response.
09
Do you possess a valid Environmental Protection Agency (EPA) approved Universal Technician Certificate in compliance with Federal license requirements as provided in Chapter V, Section 608?
If yes, to receive credit for your certification, include a legible copy of the certificate in your application or email it to within five (5) calendar days of filing your application.
We do not accept password-protected documents. Ensure documents are unlocked before attaching to your application or sending to the exam analyst.
Required Question
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