Mechanical Engineer

Mechanical Nuclear Systems / Hydraulic Systems Engineer profile, particularly someone with experience in nuclear island auxiliary systems, piping, fluid systems, and ASME Section III. Systems to include in the requirement Nuclear Island Hydraulic / Mechanical Systems: Boron Injection System (BIS) – reactor shutdown/safety-related borated water injection. IC Pools Cooling & Cleanup System – cooling and purification of the relevant inventory/pools. Reactor Water Cleanup System (RWCU) – reactor water purification, filtration, heat removal and associated piping. Fuel Pool Cooling & Cleanup System (FPCCS) – spent fuel pool cooling, filtration and cleanup. Ideal candidate profile The candidate should have: Mechanical Engineering background. Strong piping analysis / pipe stress analysis experience. Experience with nuclear mechanical systems and hydraulic/fluid systems. ASME Section III – mandatory. Strong understanding of Class 3 piping / ASME Section III Subsection ND. P.Eng. / PEO – Ontario – mandatory if professional responsibility/sign-off is required. Ability to interpret P&IDs, piping drawings, equipment drawings, engineering calculations and design data. Ability to review engineering deliverables against applicable ASME codes and nuclear design requirements. Ability to identify deficiencies/non-compliances and recommend corrective design changes. Experience reviewing or certifying piping stress calculations, drawings and engineering documentation. Nuclear experience is preferred but not mandatory, provided the candidate has strong ASME Section III experience. Experience with Boron Injection, RWCU, Fuel Pool Cooling/Cleanup, IC Pool Cooling/Cleanup, or similar nuclear auxiliary/hydraulic systems is a strong advantage. Darlington / Ontario nuclear experience is preferred. Remote work is acceptable, with the ability to support the Toronto/Darlington project as required.

The role involves designing and reviewing nuclear island auxiliary and hydraulic systems, including boron injection and reactor water cleanup. Responsibilities include performing piping stress analysis and ensuring all engineering deliverables comply with ASME codes and nuclear design requirements.

Candidates must have a Mechanical Engineering background with mandatory expertise in ASME Section III and strong piping analysis skills. A P.Eng. license from PEO Ontario is required for professional sign-off responsibilities.

Identified from the job description. Confirm important requirements above.

• Mechanical Engineering
• Piping Analysis
• Pipe Stress Analysis
• ASME Section III
• Hydraulic Systems
• Fluid Systems
• P&ID Interpretation
• Nuclear Mechanical Systems
• Class 3 Piping
• Engineering Calculations
• Design Review
• Professional Engineering License

• Engineering
• Energy
• Science & Research

Minimum education

Professional degree

Minimum experience

5+ years

Apply by

Sep 24, 2026

Posting language

English

Working hours

40 hours per week

Seniority

Mid-Senior level

Application method

Direct apply is available