STATIONARY ENGINEER HELPER at County of Los Angeles — California, USA | Base Career

About the Department

When 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: https://hr.lacounty.gov/benefits/

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.

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: Stationary Engineer Helper Class Specification

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.

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.

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 MNavarro2@isd.lacounty.gov 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 MNavarro2@isd.lacounty.gov 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.

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.

Our 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 Information We 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. info@governmentjobs.com noreply@governmentjobs.com MNavarro2@isd.lacounty.gov 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: MNavarro2@isd.lacounty.gov California Relay Services Phone: (800) 735-2922 ADA Coordinator Phone: (323) 267-2436 Teletype Phone: (800) 899-4099 [Alternate Teletype Phone: (800) 897-0077 ]

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.

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.

We only accept applications filed online.