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Posted 1 hour ago

Class B Refrigeration Operator

@ Black & McDonald Limited

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Vaughan, Ontario

Full-time
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SIGNALS

Requirements summary:

  • The position requires continental shifts, thus candidates must have open and flexible availability.​
  • Experience within a TSSA-regulated ammonia plant
  • Extensive experience on HVAC/R systems
  • Provide access and assistance to sub-trades as required
  • EDUCATION REQUIREMENTS
  • Must possess a 3 rd Class Power Engineer certificate or higher or “A” or “B” Refrigeration Operator class certificate
Source and dates

Employer career site / ATS feed · breezy

Employer posting date
2026-11-10
First seen by our source
2026-11-10
Source record updated
2026-11-10

These dates describe the source record, not a live verification that the employer is still hiring. Check the original posting.

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Black & McDonald Limited

Saved company profile

Historical company information from a saved The Jobs API profile (LinkedIn/Crunchbase fields). It is not live-verified; figures may have changed. Missing values remain unknown.

Full company description

Black & McDonald is an integrated, multi-trade service provider that safely delivers high-quality construction, facilities management, and technical solutions. We are a family-owned and operated company with over 6,500 employees working out of 40+ offices across North America. With more than 100 years of diverse market experience across North America, we are a forward-thinking organization with a strong track record of delivering customer-focused solutions and operational excellence. For more information on our licenses visit: https://blackandmcdonald.com/licenses/

LinkedIn followers
77,015
People associated on LinkedIn
3,002
Reported office locations
  • 2100 - 2 Bloor Street East, Toronto, ON M4W 1A8, CA
  • 31 Pullman Court, Scarborough, ON M1X 1E4, CA
  • 6001 Front Street, Kansas City, Missouri 64120, US
  • 10 Payzant Avenue, Dartmouth, Nova Scotia B3B 1Z6, CA
  • 1801 Quebec Avenue, Saskatoon, Saskatchewan S7K 3S7, CA
Business categories
  • Electronics
  • Government
  • Consumer Electronics
Other recorded names
  • Black & McDonald Limited
  • Black & McDonald Français
Specialties
  • Electrical Construction
  • Facilities Management
  • Facility Maintenance Services
  • Renewable Services
  • Utility Services
  • Construction Services
  • Energy & Sustainability Services
  • Engineering & Design
  • Fabrication and Modular Construction Services
  • and EV Charging Infrastructure Services
Profile identifies a recruitment agency
No
Reported total investment
0

Currency and observation date were not supplied; this is not a current valuation or a funding round.

View all jobs Website

Black & McDonald is an integrated, multi-trade service provider that safely delivers high-quality construction, facilities management, and technical solutions. We are a family-owned and operated company with over 6,500 employees working out of 40+ offices across North America. With more than 100 years of diverse market experience across North America, we are a forward-thinking organization with a strong track…

FieldValue
IndustryConstruction
Company size5,001-10,000 employees
HeadquartersToronto, ON
Organization typePrivately Held
Year founded1921
SpecialtiesElectrical ConstructionFacilities ManagementFacility Maintenance ServicesRenewable ServicesUtility ServicesConstruction ServicesEnergy & Sustainability ServicesEngineering & DesignFabrication and Modular Construction Servicesand EV Charging Infrastructure Services
Open jobs on Jobsy104
LinkedInView page
Job description

Class B Refrigeration Operator
Location: Vaughan, ON

Shift: Continental rotation (7 days on / 7 days off). Rotating 12-hour day and night shifts.

ABOUT THIS CAREER OPPORTUNITY

If you are a technical and hands-on professional searching for the opportunity to build a solid foundation for your career, this position is for you. The Class B Refrigeration Operator opportunity work with-in Whitby location and reports to the Chief Operator. The position requires continental shifts, thus candidates must have open and flexible availability.​

You will be responsible for the following duties and responsibilities:

  • Experience within a TSSA-regulated ammonia plant
  • Operate air compressors, chillers, water towers, water softeners, air dryers, pumps, and fans
  • Chiller maintenance including cooling towers and associated equipment
  • Extensive experience on HVAC/R systems
  • Responsible for the safe operation of the refrigeration plant
  • Perform all tasks related to the safe and efficient operation of the plant including repairs and maintenance
  • Perform routine inspection and testing of equipment and building infrastructure to ensure proper operation
  • Perform minor repair and general maintenance duties associated with building systems
  • Document air compressor readings, all plant steam produced and consumption and gas consumption; supply gas forecasts to gas supplier
  • Track and log all gas, water, and hydro readings
  • Monitor and maintain water treatment for chillers and cooling towers
  • Familiar with CMM and preventative maintenance programs
  • Provide access and assistance to sub-trades as required

EDUCATION REQUIREMENTS

  • Must possess a 3rd Class Power Engineer certificate or higher or “A” or “B” Refrigeration Operator class certificate

WORK EXPERIENCE REQUIREMENTS

  • Must have experience working as an operator in an ammonia plant

SKILLS, ABILITIES, AND OTHER REQUIREMENTS

  • Must be able to work 7AM to 7PM on a continental rotational shift
  • Must be able to commute to Vaughan
  • Strong troubleshooting and interpersonal skills
  • Bending and lifting required; lifting under 30 kg
  • Ability to climb stairs and work on a ladder or scaffold as required
  • Good computer skills
  • Good oral and written communication skills
  • Provide vacation coverage for other operators
  • Must be able to successfully obtain and maintain necessary security clearances

The expected salary range for this role is determined in accordance with the union collective agreement

Black & McDonald welcomes and encourages applications from persons with disabilities.
Accommodations are available upon request for candidates taking part in all aspects of the recruitment and selection process.

#LI-RM1

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