Are you looking for a role where you will provide mechanical trades services by troubleshooting, repairing, installing, and fabricating mechanical equipment and repairing, modifying, and installing new or existing structures?

Responsibilities

- Perform tasks based on the Red Seal Occupational Analysis.
- Conduct routine and non‑routine preventive and corrective maintenance on CNL mechanical equipment (pumps, compressors, precision machining equipment, gear boxes, hydraulic units, etc.)
- Diagnose and troubleshoot mechanical equipment to ensure safe operation and continuity of production.
- Read and interpret drawings, work packages, and reference materials to fully understand job scope.
- Ensure all work complies with Atomic Energy of Canada (AECL) regulations and applicable codes.
- Document maintenance activities and complete all pertinent paperwork to maintain an accurate maintenance history.
- Construct, fabricate, install, or de‑commission mechanical systems and structures.
- Maintain valuable housekeeping practices in all work areas, tools, and equipment.
- Adhere to provincial, federal, and AECL regulations to provide a safe, efficient working environment.
- Attend monthly safety meetings and immediately report any safety concerns or infractions.
- Apply Event Free Tools and Pre‑Job Brief information throughout assigned work.
- Assist in the training, coaching, and mentoring of apprentices and co‑op students.
- Perform other duties as assigned by your manager.

Qualifications

- Education
- High school graduate or equivalent.




- Completed apprenticeship training or equivalent and qualified as a Millwright with an Interprovincial Red Seal ticket.

- Experience

- Minimum 3 years as a Red Seal Millwright.
- Experience in a wide variety of industrial work environments.

- Knowledge, Skills & Abilities

- Knowledge of internal structural checklists, maintenance records, and inspection processes.
- Knowledge of applicable codes and standards such as CSA 47.1/W59, CSA N285, Z‑299, Quality Assurance levels and Underwriter’s Laboratory codes.
- Knowledge of metallurgy and equipment effectiveness.
- Ability to read blueprints and technical drawings specific to Millwrights.
- Proficiency with hand and power tools, precision measuring and levelling equipment.
- Strong written and verbal communication skills for working with multi‑trade teams and CNL staff.
- Highly motivated and able to work with minimal supervision.
- Problem‑solving abilities to adapt installation techniques to on‑site conditions.
- Mechanical troubleshooting and repair skills.
- Ability to interpret engineering drawings and weld per specifications.
- Planning and organizational skills.




- Adaptability and initiative in changing environments.
- Punctuality, dependability, and safety‑mindfulness.
- Attention to detail and ability to meet deadlines.
- Exceptional organizational and time‑prioritisation skills.

- Security Clearance Eligibility

- Reliability status with Site Access Security Clearance (SASC) requiring 3‑5 years of verifiable history in Canada, Australia, New Zealand, the United States, and/or the United Kingdom.

Working Conditions

- Position governed by the International Association of Machinists and Aerospace Workers Local 608 collective agreement.
- Compressed workweek: 4 days per week, 10 hours per day (40 hours total) from 6:00 a.m. to 4:30 p.m.

Benefits

- Paid time off: vacation, sick, personal, and floater days.
- Benefits effective Day One – no waiting period.
- Tuition support.
- A defined‑benefit pension plan.

Location

Fully onsite position based at Whiteshell Laboratories, Manitoba, near Pinawa. The site is surrounded by lakes, rivers, and forests and offers a close‑knit community environment.

Equal Opportunity Employer

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

Commitment to Equity, Diversity & Inclusion

We foster an environment that promotes equity, diversity, and inclusion and celebrate employees, stakeholders, and partners of all backgrounds and identities.

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📌 Millwright (Pinawa)
🏢 Canadian Nuclear Laboratories
📍 Pinawa