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Senior Mechanical Engineer

Job in Mississauga, Ontario, Canada
Listing for: AtkinsRéalis
Full Time position
Listed on 2026-02-28
Job specializations:
  • Engineering
    Mechanical Engineer, Engineering Design & Technologists, Systems Engineer, Manufacturing Engineer
Job Description & How to Apply Below

Job Description

Senior Mechanical Engineer

Atkins

Réalis 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.

Reporting to the Director of Retube, Inspection and Maintenance Systems, the Senior Mechanical Engineer would support one of the various Refurbishment or New build projects on the Fuel Handling team. This knowledgeable engineer will be responsible for executing commercial and internal work packages and projects, with respect to machine design and process systems including other closely related disciplines.

This role will be based in Mississauga, ON.

Your role within the team:

  • Perform conceptual and detail design engineering work on mechanical equipment and systems, including process related design on D2O, oil hydraulic and pneumatic systems.
  • Perform project lead responsibilities by guiding technical staff on a variety of tasks in design, development, procurement, manufacturing, assembly, testing and commissioning.
  • Prepare design documentation such as design requirements, design descriptions, design specifications, technical specifications, component specifications, test procedures and plans, commissioning procedures, registration design submissions packages, flow sheets, detail drawings, general arrangements, and equipment layouts.
  • Review design reports, analysis reports, calculations, documents, and drawings in support of design verification.
  • Perform complex technical calculations relevant to design such as heat load analysis, fluid mechanics, and calculations related to component integrity.
  • Conduct technical, conceptual and detail design meetings in front of peers, clients and suppliers.
  • Provide technical guidance to design drafting staff as well as mentoring and oversight of junior engineers.
  • Work in accordance with applicable codes, standards, regulations, client and company procedures.
  • Why choose
    Atkins

    Réalis

    as an employer?

    Because we offer:

  • The opportunity to work on various major projects for internal and external clients.
  • An exciting environment where work-life balance is important.
  • A wide array of learning and development opportunities.
  • Competitive pay, flexible benefits, an employee share plan, and a defined contribution pension plan.
  • A work environment focused on health and safety.
  • The ideal candidate:

  • Degree in Mechanical Engineering or Mechatronics from an accredited University with a minimum 10 years of experience in machine, automation, equipment and/or tooling design, or 10 years of experience in the fluid power, oil hydraulic control and/or water process control industry.
  • Registered, or eligible to be registered, as Professional Engineer in the Province of Ontario.
  • Solid understanding of mechanics of machine, mechanics of materials, material selection and fundamentals of machine component design.
  • Solid understanding of fluid mechanics and process system control design including open and closed loop oil hydraulic circuit design.
  • Knowledge of ASME Boiler and Pressure Vessel Code Section II, III, V, VIII and IX is an asset.
  • Knowledge of general requirements for pressure-retaining systems and components in CANDU nuclear power plants CSA N285.0 code is an asset.
  • Knowledge of boiler, pressure vessel, and pressure piping CSA B51 code is an asset.
  • Excellent oral and written communication skills.
  • CAD experience in Solid Edge or Solid Works is an asset.
  • Are you up for this challenge? Apply today and join our team to help engineer a Better Future for our Planet and its People.

    At Atkins

    Réalis, 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.

    Atkins

    Réalis cares about your privacy. Atkins

    Réalis and other subsidiary or affiliated companies of Atkins

    Réalis (referred to throughout as “Atkins

    Réalis”) are committed to protecting your privacy.…

    Position Requirements
    10+ Years work experience
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