Senior Mechanical Engineer - Nuclear EOI

Senior Mechanical Engineer - Nuclear, Mississauga EOI

Date: May 19, 2026

Company: Hatch

Requisition : 99679

Job Category: Energy

• Prepare engineering work packages ensuring budgets and schedules are met
• Define mechanical project requirements as they are related to scope, cost and schedule
• Develop and/or review mechanical deliverables such as design requirements, design criteria, engineering calculations and systems analysis, technical specifications, design criteria, datasheets, layouts, and more
• Prepare design completion assurance certificates, analysis statements and engineering reports for registration and fitness of service assessments
• Support classification of nuclear and non-nuclear code boundaries
• Seal documentation required with regulatory bodies for registration of systems such as Canadian Registration Numbers (CRN)
• Assist with technical queries raised during construction and commissioning of projects
• Willingness to mentor junior and intermediate staff
• Interface with other engineering disciplines including participation in design reviews
• Participate in HAZOP, COMS and other safety related reviews as required
• Actively manage relationships with clients and vendors
• Provide input to engineering, operating and capital cost estimates

• B.Sc./B.Eng in mechanical engineering
• Registration as a professional engineer in Ontario, or eligible to obtain
• Valid security clearance for Canada, or the ability to obtain
• Minimum 10 years’ experience in project engineering specific to mechanical design
• Experience in leading mechanical teams in multidisciplinary nuclear projects
• Experience working inside a nuclear quality management system compliant with CSA N286, NQA-1, and/or ISO 19443
• Familiar with CSA N285, ASME Section III Boiler and Pressure Vessel Code, ASME B31.1 Power Piping, and B31.3 Process Piping
• Excellent communication and interpersonal skills
• Excellent planning and organizational skills
• Ability to function with minimum supervision
• Experience in client engagement as a mechanical lead in nuclear projects
• Familiar with engineering management lead in nuclear projects
• Experience working in the Canadian nuclear industry with clients such as Ontario Power Generation, Bruce Power and Canadian Nuclear Laboratories
• Experience with engineering change control (ECC) processes within the Canadian nuclear industry including CANDU station configuration management systems
• Preference for those with DTL or DE qualifications at Canadian nuclear facilities
• Eligible to work on export‑controlled projects subject to 10 CFR 810

Base salary range: $130,000 - $180,000

• Collaborate on exciting projects to develop innovative solutions
• Performance‑based incentives, comprehensive benefits, and other programs designed to support your well‑being and growth

Hatch is an Equal Opportunity Employer that considers applicants without regard to age, race, color, national origin, citizenship, religion, creed, gender, sexual orientation, marital status, disability, veteran, or any other protected status. If you have any accommodation requirements, please let us know. We’ll do our best to meet your needs in accordance with applicable local legislation.