Mechanical System Specialist

Does owning and optimizing complex mechanical systems while improving long-term asset performance sound like the role for you? Do you have experience with HVAC and utilities systems, along with a strong focus on reliability and maintenance planning? If you do, apply today to join us as a Mechanical System Specialist, where you’ll play a key role in ensuring the safe, efficient operation and strategic improvement of critical infrastructure systems.

What will you be doing! 

• Providing oversight of the day-to-day operation of mechanical systems, including HVAC, steam, water, compressed air, natural gas, and related utilities.
• Responding to emergent system issues and directing repairs to ensure compliance with applicable codes, standards, and safety requirements.
• Preparing, reviewing, and approving work packages and scopes of work for internal teams and external contractors.
• Managing projects and portfolios related to system maintenance, upgrades, and lifecycle replacement.
• Developing and implementing preventive maintenance and asset management plans.
• Assessing system condition and prioritizing work to maximize performance and value.
• Coordinating planned shutdowns and ensuring critical maintenance activities are executed effectively.
• Collaborating with procurement, engineering, maintenance teams, and contractors to deliver work successfully.
• Communicating system status, risks, and requirements to stakeholders and leadership.
• Other duties as assigned by your manager.   
   

What we are looking for: 

• Education 
  • Diploma or certification from a recognized trade or technology program (or equivalent).
• Experience 
  • 5–10 years of experience in operations and/or maintenance of mechanical systems.
  • Demonstrated experience with central heating plants and facility mechanical systems (HVAC, cranes, elevators, water systems, etc.).
  • Experience working with utilities distribution systems such as steam, condensate, compressed air, and natural gas.
  • Experience supporting project management activities and overseeing contractors.
  • Experience applying maintenance planning processes and executing work programs.
• Knowledge, Skills & Abilities
  • Demonstrated ability to communicate effectively in written and verbal formats, including developing technical scopes and documentation.
  • Proven ability to collaborate with unionized and non-unionized teams and stakeholders.
  • Experience using software tools such as Excel, Word, Access, and scheduling systems (e.g., Primavera).
  • Strong planning, organization, and prioritization skills with the ability to meet deadlines.
  • Demonstrated ability to review and interpret engineering drawings and technical documentation.
• 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: Five (5) days per week, seven and a half (7.5) hours per day for a thirty-seven and a half (37.5) hour work week. 

   

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 jobs@cnl.ca. 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.