Senior Mechanical Designer at AtkinsRéalis

Confidential • mississauga, peel region • Posted July 09, 2026

Position Overview

Elevate your career with AtkinsRéalis as a Senior Mechanical Designer specializing in nuclear engineering projects in Ontario. Utilize your mechanical design expertise to influence impactful designs globally.
AtkinsRéalis seeks a seasoned professional with over 10 years of experience in mechanical design and drafting. In this role, you will manage engineering tasks related to HVAC and plumbing system design, alongside refurbishing nuclear power plants. Your proficiency in Smart Plant 3D, AutoCAD, and SolidWorks is crucial for success.
Key Responsibilities:
• Assess existing infrastructure for project designs
• Create designs specifically for HVAC and plumbing systems
• Generate detailed technical specifications and construction documents
• Coordinate closely with electrical and architectural teams
• Conduct site inspections to monitor construction progress
Requirements:
• Minimum 10 years of mechanical design experience
• Deep knowledge of Smart Plant 3D s...