Senior Mechanical Engineer, Nuclear

WorleyParsons; Markham; On-site; CAD 90,000 - 120,000; Full time

Job summary

A global engineering firm is seeking a Senior Mechanical Engineer to support nuclear projects in Markham, Ontario. The ideal candidate will have extensive experience in the nuclear industry and a strong understanding of safety regulations. Responsibilities include design and analysis, mentoring junior staff, and ensuring compliance with industry standards. This full-time position offers a dynamic environment as part of Ontario's Nuclear transformation initiatives.

Qualifications

• Extensive experience working on Bruce Power and/or OPG projects.
• Knowledge of nuclear industry regulations and best practices.
• Ability to lead complex engineering projects.

Responsibilities

• Ensure compliance with industry standards and regulatory requirements.
• Provide mentorship and technical guidance to junior engineers.
• Conduct complex engineering calculations and simulations.

Skills

Mechanical engineering design

Nuclear safety principles

Stakeholder engagement

Engineering software proficiency

Regulatory compliance

Education

Bachelor’s Degree in Mechanical Engineering

Professional Engineer (P.Eng.) licensed in Ontario

Tools

Engineering design software

Job description

Overview

Senior Mechanical Engineer, Nuclear - MAR00UE

Company : Worley

Primary Location: CAN-ON-Markham

Job: Mechanical

Schedule: Full-time

Employment Type : Employee

Job Posting: Sep 26, 2025

Unposting Date: Oct 27, 2025

Reporting Manager Title : Interim Mechanical Department Manager

Moving forward together

Worley is a global professional services company of energy, chemicals and resources experts. We partner with customers to deliver projects and create value over the life of their assets. We’re bridging two worlds, moving towards more sustainable energy sources, while helping to provide the energy, chemicals and resources needed now.

Purpose: Worley is seeking a Senior Mechanical Design Engineer based in Markham, Ontario with experience in Nuclear Power Plant Industries. You will work under the supervision of the Design Team Lead and will work well with the rest of the project team and customer while upholding Worley’s standards for safety and technical excellence. You will be part of a growing team that is embedded in the transformation of Ontario’s Nuclear fleet, working on critical projects, some of the most ambitious clean energy programs in the world.

Responsibilities

• Senior level mechanical engineering design and analysis for nuclear projects, ensuring compliance with industry standards and regulatory requirements.
• Develop and review technical specifications, design packages, and engineering reports.
• Provide mentorship and technical guidance to junior and intermediate engineers.
• Oversee modifications and upgrades to nuclear facilities, ensuring optimal performance and safety.
• Conduct complex engineering calculations and simulations to validate design solutions.
• Collaborate with multidisciplinary teams, including project managers, regulatory bodies, and contractors.
• Participate in risk assessments, design reviews, and constructability evaluations.
• Ensure strict adherence to CSA N299, CSA N285 and ASME Section III codes and standards where applicable.

What you will bring

• Technical and Industry Experience: Extensive experience working on Bruce Power and/or OPG projects, with deep knowledge of nuclear industry regulations and best practices.
• Expertise in mechanical equipment such as pumps, compressors, pressure vessels, storage tanks, heat exchangers, HVAC systems, fire protection systems, and piping systems.
• Strong proficiency in engineering software for design, modeling, and analysis.
• Advanced understanding of nuclear safety principles, quality assurance, and regulatory compliance.
• Ability to lead complex engineering projects and provide innovative solutions to technical challenges.
• Experience in stakeholder engagement, project management, and regulatory interactions.
• Strong ability to interpret and apply CSA N299, CSA N285 and ASME Section III codes and standards in mechanical engineering tasks.

Education – Qualifications, Accreditation, Training

• Bachelor’s Degree in Mechanical Engineering (minimum requirement).
• Professional Engineer (P.Eng.) licensed in Ontario.
• Additional certifications or training in nuclear engineering or mechanical design are considered an asset.

Required

• Active Ontario Power Generation and/or Bruce Power Security Clearance is advantageous.

Please note: No agency representation or submissions will be recognized for this vacancy.

Worley is committed to providing a fair and equitable hiring process for all applicants. As part of this commitment, Worley will ensure that persons with disabilities are provided reasonable accommodations for the hiring process. If you require any accommodations or assistance, please contact us at: [e-mail]

Ready to join us? Apply now to submit your CV.