2251 Speakman Drive: Full time: Posted Today: End Date: December 31, 2026 (30+ days left to apply): R-164145### **Job Description**## **Overview**AtkinsRéalis is looking to hire a Senior Mechanical Engineer. The individuals will work in a fast-paced team environment performing engineering services for Nuclear Power Plants within a matrix organization.## **Your role*** Prepare and review design basis documents for both nuclear and conventional systems of the nuclear power station e.g. design specification, over-pressure protection reports and design reports, Drawings, BOMs, SCL, etc.* Oversee the preparation of Mechanical and Piping Structures, Systems, and Components (SSCs) Design Packages from Conceptual Design to Available For Service (AFS) and Close Out.* Train, mentor and provide technical guidance to junior staff.* Support Engineering Management with timely updates on engineering progress, performance and staffing needs.* Directly interface with Customer’s engineering representatives.* Ensure that applicable standards and regulatory requirements and met.## **Degree in Mechanical Engineering from an accredited University with a minimum of 15 years of relevant experience (minimum 10 years in the nuclear industry).* Experience in power plant equipment, including but not limited to equipment in the Nuclear Island, Turbine Island, Balance of Plant, Auxiliary Systems (HVAC, Compressed Air Systems, Water Systems, Chillers, etc.).* Results-driven individual with solid interpersonal skills that thrives in a dynamic,



project-delivery environment.*5 standard is an asset.* Working knowledge of major nuclear operator’s Engineering Change Control process.* Presentation skills and public speaking abilities is an asset.* Knowledge of seismic and environmental qualification methods and processes is an asset.* Security Clearance is a condition of employment.## **Rewards & benefits**Explore the rewards and benefits that help you thrive - at every stage of your life and your career at AtkinsRéalis in Canada.Enjoy competitive compensation, employee recognition, and a brilliant range of flexible benefits you can tailor to your health, wellbeing, financial and lifestyle needs.Make the most of diverse opportunities for training and professional development to grow your skills and expertise.And take advantage of our hybrid working culture and generous time-off policies to balance a fulfilling career with your personal life.About AtkinsRéalis**We're AtkinsRéalis, a world-class engineering services and nuclear organization. We connect people, data and technology to transform the world's infrastructure and energy systems. Together, with our industry partners and clients, and our global team of consultants, designers, engineers and project managers, we can change the world. Please consult our Privacy Notice on our Careers site to know more about how we collect, use, and transfer your Personal Data.By submitting your personal information to AtkinsRéalis, you confirm that you have read and accept our Privacy Notice.*Appropriate accommodation will be provided upon request throughout the recruitment and hiring process as required by Company policy and the Accessibility for Ontarians with Disabilities Act (AODA).**Successful applicants will be notified about AtkinsRéalis’ accommodation policies at the time the employment offer is extended, and the information will be shared with new personnel during the onboarding process.*### **

📌 Principal Mechanical Engineering (Mississauga)
🏢 AtkinsRéalis Group
📍 Mississauga