Mechanical Engineer

Mississauga, Ontario, Canada

AtkinsRéalis is one of Canada's largest private sector nuclear engineering groups. We have been providing a wide range of services to the nuclear industry in Canada and around the world since for more than 60 years. We are proud to be the steward of Canadian CANDU nuclear technology.

• Perform design and engineering activities for nuclear tooling, field services equipment, inspection systems, and refurbishment tooling.

• Develop design documentation including design requirements, specifications, calculations, drawings, work instructions, test plans, and technical reports.
• Support manufacturing, assembly, testing, commissioning, troubleshooting, maintenance, and deployment of tooling and equipment.
• Participate in design reviews, technical evaluations, and verification activities to ensure compliance with project, client, and regulatory requirements.
• Provide engineering support for non‑conformances, field issues, outage execution, and continuous improvement initiatives.
• Coordinate with design, manufacturing, quality, procurement, and site teams to deliver project requirements.
• Support domestic and international site assignments as required.
• Work in accordance with applicable codes, standards, nuclear quality requirements, and company procedures.
• Provide guidance to designers, drafters, technicians, and junior engineers.

• Degree in Mechanical Engineering, Mechatronics Engineering, or a related discipline.
• Registered as, or eligible to become, a Professional Engineer (P.Eng.) in Ontario.
• Minimum 5 years of experience in mechanical design, tooling, equipment design, field services, maintenance, refurbishment, or nuclear‑related projects.
• Experience developing engineering calculations, specifications, drawings, and test documentation.
• CAD experience with SolidWorks, Solid Edge, or similar 3D design software.
• Experience with CANDU tooling, reactor maintenance equipment, refurbishment projects, or field services operations is considered an asset.
• Knowledge of machine design, mechanics of materials, material selection, hydraulics, pneumatics, and mechanical systems.
• Knowledge of ASME, CSA, and nuclear industry standards is considered an asset.
• Strong analytical, troubleshooting, and problem‑solving skills.
• Effective verbal and written communication skills with the ability to work directly with customers and multidisciplinary teams.

Security Requirements:

• Must be eligible to obtain and maintain security clearances required for AtkinsRéalis and customer nuclear sites, including OPG, Bruce Power, SNN, and TQPNC.

Wherever you are in your career – and whoever you are – AtkinsRéalis is for you. Here, support and collaboration are a vibrant part of a culture that lets you choose where – and how far – your career can go. Take on projects that push boundaries and drive sustainable impact, surrounded by colleagues who believe there's no limit to how brilliant you can be. It's time to join a like‑minded team where you'll be rewarded, supported, and free to be your kind of brilliant.

Explore the rewards and benefits that help you thrive – at every stage of your life and your career at AtkinsRéalis in Canada.

Enjoy competitive compensation, employee recognition, and a brilliant range of flexible benefits you can tailor to your health, wellbeing, financial and lifestyle needs.

Make the most of diverse opportunities for training and professional development to grow your skills and expertise.

And take advantage of our hybrid working culture and generous time‑off policies to balance a fulfilling career with your personal life.

Be rewarded. Find out more.