Principal Electrical Engineer

Principal Electrical Engineer About Assystem At Assystem, our mission is to accelerate the global energy transition. With more than 8,000 Switchers worldwide, we combine deep engineering expertise and project management capability with advanced digital solutions to help our clients deliver safe, sustainable, and innovative infrastructure. As one of the world’s largest nuclear engineering organisations, Assystem is a key partner in some of the most complex and high‑profile energy projects across new build, decommissioning, and infrastructure modernisation. Why Join the Community of Switchers? By joining Assystem, you’ll become part of an international network of experts working to shape the energy landscape of tomorrow. In Canada, you’ll have the opportunity to contribute to pioneering nuclear new build programmes and play a vital role in achieving the country’s clean energy ambitions. The Role We are seeking an experienced Principal Electrical Engineer to support nuclear new build and energy infrastructure projects across Canada. Based in Toronto, you will provide technical leadership and multidisciplinary input during the pre‑FEED and development phases, ensuring the successful delivery of major client programmes. You will oversee the design, analysis, and integration of electrical systems supporting nuclear and energy infrastructure projects. While your primary base will be Toronto, the role may require hybrid work or on‑site presence at different client locations, depending on project deployment. Key Responsibilities Lead engineering input into new build and infrastructure development projects. Provide multidisciplinary oversight across civil, mechanical, electrical, and systems engineering packages. Ensure compliance with CNSC, NRC, and IAEA regulatory frameworks. Manage deliverables within scope, schedule, and budget. Develop and review designs for power distribution, protection, lighting, and grounding systems. Ensure compliance with CSA, IEEE, and nuclear electrical safety standards. Lead power studies including load flow, short circuit, and arc flash analysis. Support digital and control system integration with I&C teams. Provide electrical input into feasibility studies and plant layouts. Support feasibility studies, site assessments, and technology evaluations. Coordinate with internal teams and client stakeholders to ensure seamless project integration. Prepare and review technical documentation to high regulatory standards. About You P.Eng (or equivalent) with eligibility to work in Canada. Proven extensive experience within the nuclear or energy sector. Proven track record delivering pre‑FEED and design‑phase projects. Strong understanding of regulatory frameworks and safety culture. Demonstrated ability to lead multidisciplinary teams and interface with clients. Experience working with major Canadian nuclear operators. Familiarity with AP1000 technology and digital engineering tools. Strong stakeholder management and communication skills. Previous international or large‑scale infrastructure project experience. Knowledge of HV/LV switchgear, cable routing, and electrical substations. What We Offer At Assystem, you’ll have the chance to work on high‑impact projects that contribute directly to Canada’s net‑zero future. We offer a collaborative, inclusive environment, global career development opportunities, and the satisfaction of being part of a mission‑driven engineering community transforming the world’s energy systems. Join us, and become a Switcher. Seniority level Mid‑Senior level Employment type Full‑time Job function Engineering, Consulting, and Project Management Industries Business Consulting and Services, Engineering Services, and Services for Renewable Energy #J-18808-Ljbffr