Refrigeration & Air Conditioning Mechanic

Are you looking for a hands-on role that will challenge your mechanical expertise? Do you enjoy troubleshooting HVAC systems and ensuring critical equipment runs safely and efficiently? Can you see yourself installing, repairing, and maintaining refrigeration and air conditioning systems that support essential operations? If so, apply now to become our next Refrigeration & Air Conditioning Mechanic and make an impact supporting reliable day-to-day operations.

---

What will you be doing!

• Troubleshooting, repairing, maintaining, dismantling, installing, and adjusting refrigeration, ventilation, and air conditioning equipment.
• Inspecting and servicing components such as compressors, condensers, valves, thermostats, and control systems.
• Balancing ventilation systems and taking air velocity readings to ensure performance meets design specifications.
• Reading and interpreting drawings, work packages, and technical documentation to understand job scope.
• Performing leak checks and servicing refrigeration systems, including handling refrigerants.
• Installing refrigeration lines and completing brazing/soldering using appropriate tools and techniques.
• Maintaining safe and clean work environments in compliance with applicable regulations and standards.
• Attending safety meetings, reporting hazards, and applying safe work practices.
• Assisting in training, coaching, and mentoring apprentices and junior team members.
• Other duties as assigned by your manager.
   

What we are looking for: 

• Education 
  • Secondary school diploma
  • Certification as a Refrigeration & Air Conditioning Mechanic (completion of apprenticeship program)
• Experience 
  • Demonstrated experience in troubleshooting, repairing, and maintaining HVAC and refrigeration systems
  • Experience working with ventilation systems and mechanical components in an industrial or facilities environment
  • Experience using Microsoft Office tools for documentation and communication
  • Experience with Distributed Digital Control (DDC) systems is considered an asset
• Knowledge, Skills & Abilities
  • Demonstrated knowledge of applicable codes, standards, and safe work practices
  • Proven ability to read and interpret technical diagrams, blueprints, and drawings
  • Demonstrated ability to communicate effectively and collaborate within multi-trade teams
  • Demonstrated commitment to safety, including proper use of personal protective equipment
• Security Clearance Eligibility Required
  • Reliability Status with Site Access Security Clearance (SASC), which has a minimum requirement of 3-5 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.”
     

Working Conditions: 

• Working schedule: Four (4) days per week, ten (10) hours per day for a forty (40) hour work week.

• This position is part of the AC Union and is governed by the terms and conditions outlined in the AC Collective Agreement. As a member of this bargaining unit, you’ll benefit from clear expectations around hours of work, wages, vacation, and other conditions that support a fair and consistent working environment.

   

---

Why CNL?

Does the idea of working with a dynamic team across Canada to advance nuclear science and technology for a clean and secure world excite you? At CNL, we’re reinventing ourselves to be industry leaders—pioneering solutions to the problems that matter most.

From building the next generation of clean nuclear and hydrogen energy technologies, to developing targeted cancer treatments, to continuing our global leadership in environmental remediation—we are driven by impact, innovation, and purpose.

What We Offer: A Total Rewards Package

We believe in taking care of our people. Here’s what you can expect as part of our team: 

• Paid time off: vacation, sick, personal, and floater days
• Benefits effective Day One – no waiting period 
• Tuition support to help you keep learning and growing 
• A defined-benefit pension plan or a defined-contribution pension plan, depending on your employee group, to support your long‑term financial security

 

Do Our Priorities Resonate with You? 

• Delivering clean energy for today and tomorrow 
• Restoring and protecting the environment 
• Contributing to the health of Canadians

 

If so, you’ll feel right at home at CNL! 

---

Location: Onsite 

Located in the heart of the Ottawa Valley, our Chalk River site offers a beautiful natural setting with forests, lakes, and wildlife, right at your doorstep. Surrounded by welcoming communities such as Deep River, Petawawa, and Pembroke, you’ll have access to unparalleled outdoor adventures and a fantastic work-life balance.

Please note: This is a fully on-site position based at our Chalk River Laboratory in Ontario.

Our Commitment to Equity, Diversity & Inclusion

At CNL, we are committed to fostering an environment that promotes equity, diversity, and inclusion. We celebrate and welcome employees, stakeholders, and partners of all backgrounds and identities. Click here to read all about it!

We are proud to uphold a workplace culture grounded in our Core Values: 

• Respect
• Teamwork 
• Accountability 
• Safety 
• Integrity
• Excellence

 

These values drive our employment practices and ensure meaningful career development opportunities and accommodations for all employees.

CNL is an equal opportunity employer. If you require accommodation during any phase of the hiring process, please let us know via [email protected]. All requests will be handled with confidentiality.

CNL operates on sites located on the traditional lands, waterways and ceded and unceded territories of Indigenous peoples. CNL recognizes and affirms all First Nations, Métis communities and Inuit in this land we now know as Canada. We acknowledge, respect and seek to better understand Indigenous history, rights and title on the lands where we work and develop projects. We honour and respect the importance of the relationship between Indigenous peoples and their lands, waters and territories.