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Posted 4 months ago

Mechanical Design Engineer- Nuclear

@ Candu Energy Inc.

Mississauga, Ontario

Full-time5+ years experience
Apply now
SIGNALS

Overview

AtkinsRéalis is hiring a Mechanical Design Engineer for CANDU nuclear reactor and major components design. The role covers conceptual through detailed mechanical design, technical documentation, regulatory interface with TSSA and CNSC, and design review. The posting states a hybrid working culture and generous time-off policies.

Responsibilities:

  • Perform conceptual to detailed mechanical design of reactor components
  • Prepare and review technical calculations, drawings and specifications
  • Prepare and review TSSA registration packages
  • Interface with TSSA and CNSC regulators
  • Perform design review and verification of others' work

Requirements summary:

  • Mechanical engineering degree from a recognized university
  • Licensed or eligible for Professional Engineer licence in Ontario
  • Minimum 5 years of mechanical engineering experience
  • Experience applying GD&T and classical stress calculation
  • Asset: knowledge of ASME Code and CSA Standards

Tools & skills

Source and dates

Employer career site / ATS feed · workday

Employer posting date
2026-07-16
First seen by our source
2026-10-08
Source record updated
2026-10-16

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

Job details

SenioritySenior
DepartmentEngineering
Experience5+ years
Hours per week40 (estimated)
Work settingOffice
PositionMostly sitting
Physical demandsphysical low · computer high
LanguagesEnglish
Licences & certificationsProfessional Engineer (Ontario)
EducationBachelor’s degree (required), Master’s degree (preferred)
Fields of studyMechanical engineering
Perks mentionedFlexible hours, Wellness, Paid training

Summary and details written by AI from the posting; the employer’s posting is the authority.

Candu Energy Inc.

FieldValue
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Job description

Job Description

Overview

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.

Your role

  • Perform conceptual, preliminary and detailed mechanical design engineering work for reactor components to applicable codes, standards and procedures meeting quality, budget, and schedule expectations.
  • Conduct and/or lead conceptual, preliminary and detailed phases of the engineering work for reactor components.
  • Prepare and review technical documents, such as: technical calculations, engineering drawings and bill of materials, design specifications, design requirements, design manuals, technical specifications (for procurement, fabrication, and site installation), code classifications, commissioning specifications, etc.).
  • Support the technical leads and management in the development, planning, and scheduling the work.
  • Support new proposals, procurement engineering, manufacturing, qualification, and installation of the items and components designed.
  • Define own work scope, prepare responses to technical questions, communicate to client as needed, monitor and report progress on own work.
  • Prepare and review TSSA registration packages for pressure boundary designs and modifications.
  • Interface with the regulatory bodies, such as: TSSA and CNSC, as required.
  • Perform design review and design verification for the design and engineering work done by others.
  • Provide prompt response and engineering resolutions on any critical engineering related matters.

About you

This is a mechanical engineering position, in the area of CANDU nuclear reactor and major components design. The requirements for this position are:

  • A bachelor’s or master's degree in mechanical engineering (or equivalent) from a university of recognized standing.
  • Licensed or eligible to be licensed as Professional Engineer in the Province of Ontario.
  • Minimum 5 years of mechanical engineering experience.
  • Experienced in the application of GD&T.
  • Experience in classical stress calculation.
  • Familiarity or working knowledge of nuclear ASME Code and CSA Standards is considered an asset.
  • Knowledge of design process required, as well as basic knowledge of scheduling to aid project schedules.
  • Proficient in Microsoft Excel, Mathcad, or similar programs to perform calculations.

Rewards & benefits

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.

About AtkinsRéalis

We're AtkinsRéalis, a world-class engineering services and nuclear organization. We connect people, data and technology to transform the world's infrastructure and energy systems. Together, with our industry partners and clients, and our global team of consultants, designers, engineers and project managers, we can change the world. We're committed to leading our clients across our various end markets to engineer a better future for our planet and its people.

Find out more.

Additional information

AtkinsRéalis cares about your privacy. AtkinsRéalis and other subsidiary or affiliated companies of AtkinsRéalis (referred to throughout as “AtkinsRéalis”) are committed to protecting your privacy. Please consult our Privacy Notice on our Careers site to know more about how we collect, use, and transfer your Personal Data.

By submitting your personal information to AtkinsRéalis, you confirm that you have read and accept our Privacy Notice.

Appropriate accommodation will be provided upon request throughout the recruitment and hiring process as required by Company policy and the Accessibility for Ontarians with Disabilities Act (AODA).

Successful applicants will be notified about AtkinsRéalis’ accommodation policies at the time the employment offer is extended, and the information will be shared with new personnel during the onboarding process.

Worker Type

Employee

Job Type

Regular

At AtkinsRéalis, we seek to hire individuals with diverse characteristics, backgrounds and perspectives. We strongly believe that world-class talent makes no distinctions based on gender, ethnic or national origin, sexual identity and orientation, age, religion or disability, but enriches itself through these differences.

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