Building Operating Engineer ; Revised

Job Title

A Building Operating Engineer operates, monitors, and performs maintenance on high pressure gas or oil fired boilers, gas or steam turbines, energy recovery boilers and heat exchangers, other heating systems, and their auxiliaries in supplying steam or high temperature hot water for space heating and similar purposes; operates, monitors, and performs maintenance on large tonnage capacity chillers used for air-conditioning, including all auxiliary related equipment such as condensers, cooling towers, pumps, and air compressors;

performs water treatment tests and studies; monitors and maintains other building service equipment; operates and programs computer based building automation systems, trouble-shoot program control sequence of operation, operates and maintains various types of refrigeration and air conditioning air handling units, operates and monitors computer based lighting control systems; responds and investigates building tenant service requests; tests and monitors fire life and safety alarm systems;

maintains the building operability while optimizing equipment performance for efficient energy management and energy reduction.

A valid unlimited Steam Engineer's license issued by the Department of Building and Safety of the City of Los Angeles is required at the time of filing.

Applicants must submit their unlimited Steam Engineer's license at the time of filing. The copy of the license must be attached to the on-line application BEFORE the application is submitted. If the license is attached AFTER the on-line application has been submitted, it will not be available to the City and applicants WILL NOT be credited with having submitted it. Applicants who fail to submit the license at the time of filing by not attaching it to the on-line application WILL NOT be considered further in this examination and their applications will not be processed.

A valid universal Environmental Protection Agency (EPA) certificate is required prior to appointment pursuant to Section 608 of the Clean Air Act.

All positions at the Los Angeles World Airports require a turbine endorsement issued by the Los Angeles Department of Building and Safety prior to the completion of probation.

A valid Class C driver's license issued by the California Department of Motor Vehicles (DMV) is required at the time of filing. Applicants will be disqualified and not be eligible for hire if their DMV record within the last 36 months reflects three or more moving violations and/or at-fault accidents, or a conviction of major moving violation such as DUI.

Applications will only be accepted on-line on the dates listed in the "Final date to receive applications" section of this bulletin. When you are viewing the on-line job bulletin of your choice, simply scroll to the top of the page and select the "Apply" icon. On-line job bulletins are also available at

Applicants are urged to apply early to ensure you have time to resolve any technical issues you may encounter.

Applications will only be accepted on-line on the dates listed below:

FRIDAY, JANUARY 9, 2026 to THURSDAY, JANUARY 22, 2026

The examination may close without prior notice at any time after a sufficient number of applications have been received. Filing periods may change without prior notice or additional dates may be added, as needed, at a later date. For administrative purposes, filing will close periodically and reopen on the dates noted in the "Final date to receive applications" section of this bulletin.

In accordance with Civil Service Rule 4.2, all applicants who apply may not be tested in this examination. To meet anticipated hiring needs, only a limited number of qualified applicants will be invited to participate in the selection process in the following order:
1) Applicants currently employed by the City of Los Angeles who meet the minimum requirement, or are on a reserve list;
2) Remaining applicants who meet the minimum requirement in sufficient numbers to meet hiring needs based on a random sampling of those qualified candidates. Applicants not selected to be tested may re-apply in a subsequent filing period in order to be considered for that period's selection process.

The examination will consist entirely of an evaluation of professional and personal qualifications by interview. In the interview, the following competencies may be evaluated:
Objectivity;
Teamwork;
Oral Communication;
Safety Focus, including knowledge of: potential safety hazards involved in high pressure boiler operation and the precautions that should be taken to mitigate them;
Job Knowledge, including knowledge of: operating principles and construction of oil and gas-fired boilers, combustion turbine generators, auxiliary equipment, and pressure reducing stations; methods and techniques used to clean and maintain oil, gas-fired, and waste-heat boilers, and related auxiliary equipment; water treatment…