Apply now

Posted 4 days ago

Operating Engineer, Class 3

@ Canadian Nuclear Laboratories LTD

Chalk River, Ontario

Full-time
Apply now
SIGNALS

Overview

Canadian Nuclear Laboratories is hiring an Operating Engineer, Class 3 at its Chalk River Laboratories site under the Chief Operating Engineer. The role runs powerhouse, HVAC, boiler and water-treatment equipment, with routine patrols, water testing and logbook upkeep. Candidates need an Ontario 3rd Class Operating Engineer qualification and Reliability Status with Site Access Security Clearance, and the posting offers day-one benefits, paid time off and a pension.

Responsibilities:

  • Operate Chalk River powerhouse and HVAC equipment safely
  • Test operating and safety controls
  • Operate and maintain the DDC system
  • Perform water tests and maintain water quality
  • Patrol site buildings and check sewage treatment plant

Requirements summary:

  • Grade 12 diploma
  • Ontario 3rd Class Operating Engineer qualification
  • Valid Ontario Class G driver's licence
  • Knowledge of high-pressure steam boilers and related controls
  • Reliability Status with Site Access Security Clearance eligibility
  • Microsoft Office and written and verbal communication skills

Tools & skills

Benefits mentioned

Retirement planPaid time offTuition support
Source and dates

Source type not verified · tbe

Employer posting date
2026-11-02
First seen by our source
2026-10-10
Source record updated
2026-11-02

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

Job details

SeniorityMid level
DepartmentManufacturing & production
Hours per week40 (estimated)
Travelair: none · ground: none
Work settingPlant or factory
PositionSitting and standing
Physical demandsphysical moderate · computer moderate
LanguagesEnglish
Licences & certificationsOntario 3rd Class Operating Engineer
Driver’s licencerequired
EducationHigh school (required)
Security clearanceReliability status
Perks mentionedGenerous paid time off, Retirement plan, Tuition support

Summary and details written by AI from the posting; the employer’s posting is the authority.

Canadian Nuclear Laboratories LTD

FieldValue
Open jobs on Jobsy183
Job description

Are you looking for a role that will challenge you? If you answered yes, then this may be the job for you! Under the supervision of the Chief Operating Engineer or designate, successful candidates will be responsible for performing the duties required of an Operating Engineer CLASS 3 (CL3).

What you will be doing!

The Operating Engineer CL 3 is directly accountable for:

  • Operating Chalk River Laboratories (CRL) Powerhouse equipment.
  • Operating heating, ventilation, and air conditioning equipment, including ventilating fans, refrigeration compressors, pumps, steam and hot water boilers, both oil and gas, hot water heating systems, chilled water, and DX (Direct Expansion) air conditioning systems.
  • Ensuring that the equipment is operated safely and efficiently according to written procedures or verbal instruction and instituting corrective action when necessary.
  • Testing operating and safety controls, such as pressure switches, pressure relief valves, thermostats, control valves, traps, etc., to ensure that they are performing properly.
  • Adjusting instrument control point settings to maintain proper temperature and humidity.
  • Operating and maintaining a DDC (Distributed Digital Control) system including but not limited to monitoring, adjusting, programming, and minor maintenance.
  • Recording and maintaining records on energy use: steam, air, water, and electricity.
  • Recording temperature, relative humidity, and other operating conditions, as instructed.
  • Performing routine patrols of site buildings to check for abnormal conditions in HVAC, sanitary sewer, firewater, service water systems, etc.
  • Performing routine checks of the sewage treatment plant.
  • Maintaining good housekeeping practices in all work areas, adhering to provincial, federal, and CNL regulations to provide a safe and efficient working environment.
  • Attending monthly safety meetings and immediately report any safety concerns and/or infractions. Apply CNL’s Event Free Tools procedure throughout the execution of assigned work and model this behavior and knowledge to others.
  • Assisting in the training, coaching, and mentoring of new employees in safe practices and procedures.
  • Performing water tests to determine water treatment measures needed, maintaining water quality in boilers, open and closed loop heating and cooling systems.
  • Maintaining written and electronic logbooks.
  • Other duties as assigned by your manager.

What we are looking for :

  • Education:
    • Grade 12 Secondary School Graduation Diploma
  • Experience:
    • Qualification as a 3rd Class Operating Engineer in the Province of Ontario (Standardized)
    • Valid Class G Ontario Drivers license.
  • Knowledge, Skills & Abilities:
    • Knowledge of all applicable codes and standards including the Technical Standards and Safety Act – Ontario Regulation #219/01 – Operating Engineers, and all applicable CNL procedures to provide a safe and healthy work environment.
    • Demonstrate use and endorsement of Personal Protection Equipment (PPE).
    • Knowledge of high-pressure steam boilers and related control systems.
    • Written and verbal communication skills to be able to work in multi-trade groups and communicate with CNL staff across a broad range of disciplines.
    • Good computer skills and working knowledge of Microsoft Office to update and write procedures, create spreadsheets, input data, and communicate via email.
  • Security Clearance Eligibility Required
    • Reliability Status with Site Access Security Clearance (SASC), which has a minimum requirement of 3 years of verifiable history in Canada, Australia, New Zealand, the United States and/or the United Kingdom. CNL implements security screening in accordance with the Treasury Board of Canada Secretariat's “Standard on Security Screening” and the “Policy on Government Security.”

Why CNL?

Does working with a team across Canada to advance nuclear science and technology for a clean and secure world speak to you? We're reinventing ourselves to be the pacesetters so we can lead the charge in solving the problems that matter, like building the next generation of clean nuclear and hydrogen energy solutions, developing new and better-targeted cancer treatments, and continuing to lead the world in environmental remediation.

We offer a complete total rewards package:

  • paid time off (vacation, sick, floater & personal);
  • benefits effective day one, that’s right, no waiting period;
  • tuition support
  • and a pension!

Do Our Priorities Resonate with You?

  • Clean energy for today and tomorrow.
  • Restore and protect the Environment.
  • Contribute to the health of Canadians.

Location :

CNL’s Chalk River Laboratory is nestled in the Ottawa Valley and affords our employees an area that is environmentally pristine with extensive forests, hills, and numerous small lakes, all of which support a variety of wildlife typical to the southern edge of the Canadian Shield. Many surrounding towns, such as Pembroke, Petawawa, and Deep River, provide unparalleled outdoor adventures at your doorstep!

CNL is committed to providing an atmosphere free from barriers that promotes equity, diversity, and inclusion in achieving our mission. CNL welcomes and celebrates employees, stakeholders, and partners of all racial, cultural, and ethnic identities. Read here for more on our DE&I Commitment.

CNL also supports a workplace environment and corporate culture built on our Core Values: Respect, Teamwork, Accountability, Safety, Integrity, and Excellence. These values encourage equitable employment practices and career prospects inclusive of accommodations for all employees.

CNL is committed to being an equal-opportunity employer. If you require accommodation measures during any phase of the hiring process, please indicate via our ATS when applying. All information received regarding accommodation requests will be kept confidential.

The Chalk River Laboratories site is located on the unceded and unsurrendered territory of the Algonquin Anishinaabe people. As an organization, CNL recognizes and appreciates their historic connection to this place. CNL also recognizes the contributions that First Nations, Métis, Inuit and other Indigenous Peoples have made, both in shaping and strengthening this community in particular, and this province and country as a whole.

#LI-ONSITE

Similar jobs

  • Operating Engineer

    Waterloo, ON
    $72k–$74k/yrFull Time

    BGO New

    5+ YOECandidates need at least 5 years of building operations experience and a valid 4th Class Power Engineers Certificate for Ontario. They need solid knowledge of mechanical and electrical building systems and must pass a criminal verification check.

    boilers, diesel generators, fire pumps, BAS, UPS, AutoCAD

  • Operating Engineer B (3rd Class)

    Toronto, ON
    $43.13/hr

    University of Toronto

    1+ YOECandidates need a 3rd Class Operating Engineer Certificate valid in Ontario and at least one year of operating engineer experience. They also need working knowledge of refrigeration, boilers and air handling, basic electrical troubleshooting, and comfort with computer systems and building automation.

    Building Automation System, Microsoft Word, Microsoft Excel

    Operating Engineer B (3rd Class)

    Toronto, ON
    $43.13/hr

    University of Toronto

    1+ YOECandidates need a High School diploma or equivalent, a valid Ontario 3rd Class Operating Engineer Certificate, and at least one year of operating engineer experience. They also need working knowledge of refrigeration, boiler and air handling systems, basic electrical troubleshooting, and computerized building automation systems.

    Building automation system, Boiler, Compressor, Microsoft Excel, Microsoft Word

  • Operating Engineer - MRHH Facility Services

    Richmond Hill, ON

    Mackenzie Health: Mackenzie Health is a regional healthcare provider in Southwest York Region.

    Candidates need a Stationary Engineers Certificate, hands-on boiler and related equipment experience, and strong mechanical and HVAC knowledge. A proven attendance record and a caring, safety-minded approach are also required.

    boilers, chillers, condensate tanks, HVAC equipment

  • Operating Engineer - 3rd class, Facilities Management

    Ottawa, ON
    $43.01/hrPart Time

    Bruyère Health

    2+ YOECandidates need a high school diploma with shop mathematics and blueprint reading, at least two years of relevant experience, and an Ontario Operating Engineer 3rd class certification. Fluency in French and English is preferred, along with good manual dexterity and intermediate computer skills.

    Electronic test equipment, Pneumatic test equipment, Valves, Tools

  • Operating Engineer

    Stoney Creek, ON
    $49.12/hrFull Time

    Winland Foods Canada Inc

    3+ YOECandidates need a Licensed Operating Engineer 3rd Class and ideally 3 to 5 years of experience. Winland Foods also wants troubleshooting and repair skills, good communication, computer literacy, and the ability to work with minimal supervision.

    steam boiler, air compressor, pumps, HVAC systems, computer

Locations & environments

Locations

All of CanadaRemote · Hybrid · On-site · Field

Pro tip: add remote jobs to widen your search.

Exclude locations

Workplace type

Company jobs in these results

These are this company’s jobs loaded in your current search. The company may have more openings.