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Third Class Operating Engineer Jobs in Toronto, ON

Bunge

Operating Engineer - 3rd Class

Hamilton, ON · On-site

CA$43.11/hr

Third Class Operating Engineer Certification is required. * Valid Ontario Class G driver's license (or equivalent). * Experience operating industrial processing equipment, utility systems, or ...

Apotex

Technician, Building Systems

North York, ON · On-site

CA$63K - CA$105K/yr

Trade certification in appropriate field (licensed millwright, refrigeration mechanic, industrial electrician etc.) required. * 3rd Class Operating Engineer's Certificate or 4th Class Certificate ...

Nestle

Facility Operator

Toronto, ON · On-site

CA$49.50/hr

Valid Ontario Certificate of Qualification as an Operating Engineer - 3rd Class or higher, and/or Refrigeration Class A or B, is required . Valid Ontario Ozone Depletion Prevention Card is preferred

Maple Leaf Foods

Shift Engineer

Mississauga, ON · On-site

$37.10/hr

Improve plant efficiency by reporting on operating conditions of equipment, determine operating ... Possesses and maintains a valid Ontario Refrigeration B Certificate or higher, or 3rd Class ...

Allied

Building Operator

Toronto, ON · On-site

CA$60K - CA$68K/yr

Certifications : 4th or 5th class Operating Engineer, or a provincial trades certification is an asset, but not a requirement. $60,000 - $68,000 a year Allied determines individual compensation by ...

Ainsworth

Building Operator

Toronto, ON · On-site

Power or Stationary Operating Engineer Class 4 (not Required) * Refrigeration Operator Class B (not required) * Building Environmental Systems 1 or 2 (preferred) * Facility Operations Certificate ...

Ainsworth

Building Operator

Toronto, ON

Power or Stationary Operating Engineer Class 4 (not Required) * Refrigeration Operator Class B (not required) * Building Environmental Systems 1 or 2 (preferred) * Facility Operations Certificate ...

Ainsworth

Building Operator

Toronto, ON · On-site

Power or Stationary Operating Engineer Class 4 (not Required) * Refrigeration Operator Class B (not required) * Building Environmental Systems 1 or 2 (preferred) * Facility Operations Certificate ...

Art Gallery of Ontario

Building Operator 3

Toronto, ON · On-site

CA$68K - CA$85K/yr

Ontario 3rd Class Stationary Engineer's License * Ontario Refrigeration Class B License * Ontario Building Environmental Systems (BES) Operator Class I * Ontario Skilled Trade License (e.g ...

Sterling Engineering

Signal Engineer

Toronto, ON · Hybrid

Design, 2nd level check and 3rd level check wiring plans and software (ladder logic and program ... Bachelor's Degree in Engineering (required) * 7+ years of experience with Class 1 freight signal ...

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All JobsThird Class Operating Engineer JobsThird Class Operating Engineer Jobs in Toronto, ON

Third Class Operating Engineer information

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.

What are popular job titles related to Third Class Operating Engineer jobs in Toronto, ON?

For Third Class Operating Engineer jobs in Toronto, ON, the most frequently searched job titles are:

What cities near Toronto, ON are hiring for Third Class Operating Engineer jobs?

Cities near Toronto, ON with the most Third Class Operating Engineer job openings:

Third Class Operating Engineer jobs near you
Infographic showing various Third Class Operating Engineer job openings in Toronto, ON as of August 2026, with employment types broken down into 1% As Needed, 71% Full Time, 27% Part Time, and 1% Contract. Highlights an 93% Physical, 4% Hybrid, and 3% Remote job distribution.

Third Class Operating Engineer

Scarborough, ON

Atlantic Packaging Products
See more jobs at Atlantic Packaging Productsexternal

CA$44.23/hr

Full-time

Medical, Dental, Vision

Re-posted 16 hours ago

Job description

“Join us in building Careers and shaping Experiences Beyond the Box”

About Us

At Atlantic Packaging, every box tells a story and yours begins here. As a proudly Canadian-owned company with over 80 years of excellence in the corrugated packaging industry with operations within North America (Ontario, Quebec and United States), we’re committed to sustainability, customer excellence and community impact. Since 1945, we’ve supported local jobs and built a legacy of trust with our clients and team members. At Atlantic, your ideas matter, your growth is supported and your work makes a real impact. The hourly wage rate for this position: $44.23.

The Opportunity

Reporting to the Chief Engineer, the 3rd Class Operating Engineer is responsible for the safe, efficient, and reliable operation of the boiler plant and associated utility systems. This role supports manufacturing operations by monitoring, maintaining, and troubleshooting high-pressure boilers, fuel handling systems, compressors, heating systems, and related equipment. The successful candidate will play a key role in ensuring equipment reliability, regulatory compliance, workplace safety, and continuous plant performance while contributing to a collaborative and safety-focused environment.
 
What You'll Do
 
  • Operate, monitor, and maintain high-pressure water tube boilers, fluidized bed boilers, compressors, and associated utility equipment.
  • Perform boiler water testing and ensure systems operate safely and efficiently.
  • Monitor and support building fire alarm, steam heating, and glycol heating systems.
  • Troubleshoot equipment issues and perform routine maintenance to maximize reliability and uptime.
  • Follow all health, safety, environmental, and operating procedures, including the use of required PPE.
  • Support plant operations by performing additional duties as assigned.

What You Bring

  • Valid Ontario 3rd Class Operating Engineer's Certificate of Qualification.
  • Previous experience maintaining and operating high-pressure water tube boilers.
  • Experience with solid fuel handling, combustion systems, and boiler auxiliaries.
  • Hands-on mechanical maintenance experience in an industrial or manufacturing environment.
  • Strong troubleshooting skills with a focus on safety, compliance, and operational excellence.
  • Ability to lift up to 50 lbs repeatedly and work in a physically demanding environment.
  • Willingness to wear required PPE, including respirators, Tyvek suits, safety glasses, gloves, and safety footwear.

What We Offer

  • Comprehensive health, dental and vision coverage (dependents included)
  • Teamwork-focused culture with sustainability initiatives and social events
  • A culture of appreciation through a point-based recognition
  • Opportunities for advancement and internal movement
  • Education assistance for continuous skill development
  • Academic scholarships for employees’ children
  • Safety equipment and PPE support program
  • Retirement savings and wellness initiatives
  • Employee Assistance Program (EAP)

Please Note

Candidates who are 18 years or older are required to complete a criminal and background check. Details will be provided through the application process. This posting is for an existing vacancy. 

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