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Posted 4 days ago

Plumber/Steamfitter

@ Canadian Nuclear Laboratories LTD

Chalk River, Ontario

Full-time
Apply now
SIGNALS

Overview

Canadian Nuclear Laboratories is hiring a Mechanical Maintainer/Plumber/Steamfitter at its Chalk River site to install, maintain, troubleshoot and repair piping systems and mechanical equipment, including decommissioning work. The role is full-time, fully on-site, four 10-hour days per week, under the M&E Collective Agreement, with benefits from day one and a defined-benefit or defined-contribution pension.

Responsibilities:

  • Preventative and corrective maintenance on piping systems
  • Construction and installation of piping and equipment
  • Decommissioning, including safe removal of piping and hazards
  • Reading drawings and work packages
  • Training and mentoring apprentices

Requirements summary:

  • Secondary School Graduation Diploma
  • Plumber/Steamfitter qualification, typically a 9,000-hour apprenticeship
  • Piping construction and repair experience
  • Knowledge of CSA, ASME and NFPA codes
  • Reliability Status with Site Access Security Clearance

Tools & skills

Source and dates

Source type not verified · tbe

Employer posting date
2026-11-03
First seen by our source
2026-11-03
Source record updated
2026-11-03

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

Job details

SeniorityMid level
DepartmentMaintenance & repair
Hours per week40
Scheduleday
Travelair: none · ground: none
Work settingPlant or factory, Outdoors
PositionSitting and standing
Physical demandsphysical high · computer low
LanguagesEnglish
Licences & certificationsPlumber/Steamfitter qualification, Reliability Status with Site Access Security Clearance
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 Jobsy181
Job description

Are you looking for a role that will challenge you? Can you see yourself as a Mechanical Maintainer/Plumber/Steamfitter supporting critical infrastructure, research facilities, and decommissioning activities by installing, maintaining, troubleshooting, and repairing piping systems and mechanical equipment? Do you enjoy hands-on work where your expertise helps ensure safe, reliable, and efficient operations while contributing to important projects across the Chalk River Laboratories site? If you answered yes, then this may be the job for you! Apply today!

What you will be doing!

  • Performing preventative maintenance, corrective maintenance, and commissioning activities on piping systems and associated mechanical equipment.
  • Constructing, fabricating, installing, and modifying piping systems and related equipment.
  • Performing decommissioning activities, including the safe removal of piping, equipment, and associated hazards.
  • Reading and interpreting drawings, work packages, and technical reference materials to ensure work is completed in accordance with applicable requirements and standards.
  • Following maintenance records, route sheets, and quality control requirements while maintaining accurate documentation.
  • Maintaining housekeeping standards for work areas, tools, and equipment to support a safe and efficient work environment.
  • Attending safety meetings, reporting safety concerns, and applying Event Free Tools throughout assigned work activities.
  • Troubleshooting mechanical equipment to support safe operations and operational continuity.
  • Assisting with the training, coaching, and mentoring of apprentices and new employees.
  • Supporting skill development by demonstrating techniques, reviewing work performance, and recommending improvements.
  • Other duties as assigned by your manager.

What we are looking for:

  • Education
    • Secondary School Graduation Diploma.
    • Qualification as a Plumber/Steamfitter, typically acquired through completion of a 9,000-hour apprenticeship program or equivalent.
  • Experience
    • Experience performing construction, installation, maintenance, repair, and troubleshooting activities on piping systems and associated mechanical equipment.
    • Experience reading and interpreting technical drawings, blueprints, schematics, and work packages.
    • Experience working in industrial maintenance, operations, construction, or decommissioning environments is considered an asset.
  • Knowledge, Skills & Abilities
    • Demonstrated knowledge of applicable codes and standards, including Canadian Standards Association (CSA), ASME, and NFPA requirements.
    • Demonstrated commitment to safe work practices and the use of Personal Protective Equipment (PPE).
    • Strong verbal and written communication skills, with the ability to work effectively in multi-trade teams and across a variety of disciplines.
    • Demonstrated ability to read and interpret blueprints, technical drawings, specifications, and parts lists.
    • Proven ability to identify mechanical issues and troubleshoot equipment effectively.
    • Demonstrated ability to safely and effectively operate standard shop tools, hand tools, portable power tools, calibration equipment, and machine tools safely and effectively.
    • Strong organizational skills with the ability to manage multiple priorities and assignments.
    • Demonstrated ability to work independently while maintaining a high standard of workmanship and attention to detail.
    • Proven ability to collaborate effectively with supervisors, planners, schedulers, facility personnel, customers, and other trades personnel.
  • 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 M&E Union and is governed by the terms and conditions outlined in the M&E 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.

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