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Salary
≈ $63k – $107k per year (Estimated)
Location
Hybrid (Mississauga, Canada)
Seniority
Senior · 10+ years exp
Visa
Positions approved through LMIA in 12 months: 5
Employment
Full-Time

Confirmed on the employer's own hiring board on Oct 20, 2026. First seen by Alion on Oct 15, 2026. AtkinsRéalis scores A on the Alion truth index.

Overview
Company
Impact
Profile match
AtkinsRéalis is a Canadian professional services and project management company created when the engineering firm SNC-Lavalin, founded in Montreal in 1911, acquired the British consultancy Atkins in 2017 and adopted the combined name in 2023. It designs and manages infrastructure programmes across transport, water, buildings, energy and defence, and holds a substantial nuclear business through Candu Energy that services and builds heavy water reactors. Headquartered in Montreal and listed in Toronto, the group employs tens of thousands of engineers, planners and consultants across Canada, the United Kingdom, the Middle East and Asia Pacific.

Job Description

Overview

This position requires an individual who is self-motivated and capable of working independently or under the instruction from another senior technical engineer and develop his/her career and experience in the nuclear field. The candidate shall be able to follow instructions from a qualified professional engineer, to complete the assigned mechanical related scopes or tasks and develop necessary engineering design documentation as required.

Your role

The qualified individual will be responsible for, but not limited to, the following:

  • Perform engineering work following AtkinsRéalis/Candu Energy QA programs, and applicable codes, standards, and regulation requirements.
  • Coordinate and interface with client, suppliers, stakeholders and other design disciplines or department to execute assigned engineering work.
  • Involve in conceptual, preliminary, and/or detailed design of CANDU or Nuclear process systems and modifications.
  • Knowledge of principles and considerations to layout piping systems from tubing up to large bore piping systems while taking into consideration piping stress analysis and supports.
  • Prepare detailed design of Piping supports, pipe sizing, and piping and equipment layout with review in (S3D, Smart Plant Review).
  • Prepare Design Change Package (DCP) and Design Change Notice (DCN) packages following customer procedures.
  • Prepare technical documents, such as: engineering drawings (including GA, ISO, pipe supports, flow diagrams), change paper markups, calculations, design/analysis reports, design requirements, design manuals, bill of materials, design specifications, technical specifications, data sheets, system classification lists, code classifications, commissioning specifications, etc.
  • Prepare TSSA registration packages for pressure boundary modifications.
  • Prepare requisitions or Engineering Quotation Requests (EQR) for equipment and materials to support procurement.
  • Review supplier technical documents and perform technical bid analyses.
  • Provide technical guidance and instruction to Designers/Drafters and more junior staff as required.
  • May be requested by Engineering Manager to lead technical packages with a small or large team of Designers and Stress Analysts.
  • Perform site visits to client and supplier shops as required.
  • Perform field walk-downs during different design phases as required.
  • Support field construction and execution activities, such as: field changes, design revisions, commissioning, AFS, closeout, etc.
  • Provide prompt response and engineering resolutions on any critical engineering related matters.
  • Complete the assigned scopes or tasks within given budget and schedule, and in good quality.

About you

  • Engineering Degree in Mechanical from an accredited university or equivalent degree as recognized by Professional Engineers Ontario (PEO).
  • Having a P.Eng license for this position is mandatory.
  • Minimum 10 Years of related work experience in mechanical engineering within a heavy industrial environment such as: nuclear, mining, oil & gas, power, etc.
  • Site experience in construction, or commissioning of plant mechanical systems for nuclear or other heavy industries would be an asset.
  • Knowledge of principles and considerations to layout piping systems from tubing up to large bore piping systems while taking into consideration piping stress analysis and supports.
  • Must have knowledge of mechanical and piping systems or equipment (knowledge of CANDU nuclear systems would be an asset).
  • Working knowledge of CSA N285.0 and CSA B51, CSA N289 and ASME Section III and ANSI B31.1 codes and any other applicable standards or regulatory guides related to permanent plant components, pressure boundary equipment, and/or reactor systems is preferred.
  • Must be able to apply technical principles in a logical and practical manner to resolve engineering issues or technical problems.
  • Shall have excellent communication and technical writing skills.
  • Demonstrate good interpersonal skills and the ability to work in a multidisciplinary team environment.
  • Must be willing to become a Nuclear Energy Worker (NEW), although this will not be a regular requirement as part of the job.

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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