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Third Class Operating Engineer information

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How much do third class operating engineer jobs pay per year?

As of Aug 7, 2026, the average yearly pay for third class operating engineer in the United States is $96,970.00, according to ZipRecruiter salary data. Most workers in this role earn between $88,000.00 and $110,000.00 per year, depending on experience, location, and employer.

What is the difference between Third Class Operating Engineer vs Second Class Operating Engineer?

AspectThird Class Operating EngineerSecond Class Operating Engineer
CredentialsRequires a Third Class license, often with specific experienceRequires a Second Class license, more extensive experience and testing
Work EnvironmentOperates boilers, pumps, and HVAC systems in buildings or facilitiesHandles larger or more complex systems, often in industrial or larger commercial settings
Employer & IndustryCommonly employed in commercial buildings, hospitals, and schoolsFound in industrial plants, large commercial facilities, and power plants

The main difference between a Third Class Operating Engineer and a Second Class Operating Engineer lies in their licensing requirements, scope of work, and the complexity of systems they operate. Second Class licenses permit handling larger and more complex equipment, often in industrial settings, while Third Class licenses are suitable for smaller systems in commercial buildings.

More about Third Class Operating Engineer jobs
What cities are hiring for Third Class Operating Engineer jobs? Cities with the most Third Class Operating Engineer job openings:
What states have the most Third Class Operating Engineer jobs? States with the most job openings for Third Class Operating Engineer jobs include:
What job categories do people searching Third Class Operating Engineer jobs look for? The top searched job categories for Third Class Operating Engineer jobs are:
Third Class Operating Engineer jobs near you
Infographic showing various Third Class Operating Engineer job openings in the United States as of August 2026, with employment types broken down into 1% As Needed, 67% Full Time, 31% Part Time, and 1% Contract. Highlights an 97% Physical, 1% Hybrid, and 2% Remote job distribution, with an average salary of $96,970 per year, or $46.6 per hour.

Engineer - Third Class

Wayne State University

Detroit, MI

Full-time

Re-posted 22 days ago

Wayne State University rating

7.6

Company rating: 7.6 out of 10

Based on 20 frontline employees who took The Breakroom Quiz

286th of 616 rated colleges and universities

Job description

POSITION PURPOSE
 
To perform operation and maintenance of heating, ventilating and mechanical equipment in assigned area.
 
ESSENTIAL JOB FUNCTIONS
 
Check buildings to ensure proper temperatures are maintained. Access all public areas in buildings, including classrooms, offices, stairwells, hallways, restrooms, etc. to determine comfort level; set and/or reset thermostats as necessary; turn ventilation equipment on and off as appropriate.
 
Monitor all pumps, condensate tanks, valves, water heaters, reduction valves, swimming pool equipment, boilers and plumbing systems. Access equipment which may be at any height and in any location on campus; work with hand tools and at any angle. Clean all plenum chambers, fans, boiler rooms and other areas designated for heating and ventilation use.
 
Make running repairs on equipment as necessary. Replace stems and seats on all valves and traps up to one inch in size; control flow by opening and closing gate, globe and/or butterfly valves.
 
Clean and change air filters. Access filter chambers which may be located at any height and angle with cumbersome boxes containing replacement filters; adjust and replace belts on equipment. Respond to calls for service.
 
All Operating Engineers are considered to be "Essential Personnel," and are required to report during a university emergency closure period.
 
Other duties as assigned.

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