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Senior Process Systems Engineer - Balance of Nuclear Steam Plant

Job in Mississauga, Ontario, Canada
Listing for: AtkinsRéalis
Full Time position
Listed on 2026-02-16
Job specializations:
  • Engineering
    Mechanical Engineer, Electrical Engineering
Job Description & How to Apply Below

Job Description

Senior Process Systems Engineer - Balance of Nuclear Steam Plant

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.

Atkins

Réalis is currently looking for Senior Process Systems Engineer – Balance of Plant to join our engineering team in Mississauga, ON.

Location:

Mississauga, ON .

Your role within the team:

This position requires an individual who is self-motivated and capable of working without supervision as well as leading a group on tasks related to Process System design for the Balance of Nuclear Steam Plant. The candidate shall be able to complete the assigned steam systems design related scopes or tasks and develop necessary engineering design documentation as required.

  • Develop, plan, schedule, conduct and coordinate engineering work.
  • Provide technical guidance and leadership to engineers at lower grade levels and/or other technical employees.
  • Coordinate and review the work of engineers and support employees.
  • Provide design solutions and assessments for new, updated, and modified process systems, and components.
  • Perform thermal hydraulic evaluations on complex systems.
  • Perform process calculations for equipment such as vessels, tanks, shell & tube heat exchangers, pumps and valves sizing.
  • Prepare design documents for Nuclear Power Plants, e.g., Design Calculation, Assessments, Technical Specifications, Drawings, Bill of Materials, and System Code Classification.
  • Prepare Engineering packages.
  • Perform walkdowns, attend site visits and meetings as required.
  • Ensure applicable code, standards and regulatory requirements are met.
  • Provide support for the preparation of Engineering proposals.
  • Ensure adherence to company quality program.
  • Ensure adherence to project delivery requirements and schedule.
  • Support Engineering Management with timely updates on engineering progress.
  • Interface with internal and external stake holders as required.
  • 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:

  • Registered as a Professional Engineer in Ontario.
  • Engineering degree from an accredited university in Mechanical Engineering, Chemical Engineering, Nuclear Engineering or Engineering Science.
  • A minimum of 10 years’ experience in Process System design related to Canadian nuclear industry, with particular emphasis on Balance of Nuclear Steam Plant and Balance of Plant systems: HVAC, water systems, Main Turbine and Turbine Auxiliary System.
  • Experience performing heat balance and thermalhydraulic evaluations on nuclear power plant steam cycle.
  • Working knowledge of experience using nuclear Codes and Standards, including CSA N285.0 and ASME Section III.
  • Knowledge of analytical tools used for mechanical and process design e.g., ANSYS, Mathcad, Flowmaster, NUCIRC, CATHENA or similar.
  • Experience performing work to nuclear power plants procedures and practices and qualifications for nuclear power plants engineering activities.
  • Demonstrate good interpersonal skills and the ability to work in a multidisciplinary team environment.
  • Eligible for Security Clearance through Public Works and Government Services Canada (PWGSC).
  • Must have excellent communication and technical writing skills.
  • Demonstrate good interpersonal skills and the ability to work in a multidisciplinary team environment.
  • 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…

    Position Requirements
    10+ Years work experience
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