Sr. Steel Structural Engineer

Join to apply for the Sr. Steel Composite Engineer role at Aecon Group Inc. As a Canadian leader in infrastructure development, Aecon is safely and sustainably building what matters for future generations to thrive. We lead some of the most impactful infrastructure projects, at the forefront of transformational change in transportation and energy, and partner every day to build, connect, power, and strengthen our communities. What is the Opportunity? As part of an alliance agreement, Aecon has been awarded a contract with Kiewit Nuclear Canada by Ontario Power Generation for the execution phase on the Darlington New Nuclear Project (DNNP) in Clarington, Ontario. Beginning in 2025 Aecon will support the construction of Unit 1 Small Modular Reactor at the Darlington site. Reporting to the Technical Manager, the Senior Steel Composite Engineer will play a pivotal role in delivering complex steelwork design packages for the Nuclear Island at DNNP. This role will leverage deep technical expertise and site experience to ensure designs are constructible, safe, and compliant with nuclear standards. What You’ll Do Here Provide advanced technical input on steel composite structures (multi‑story platforms, heavy equipment supports) ensuring compliance with nuclear safety, and project specifications. Lead constructability assessments of design packages, identifying potential site issues and proposing practical solutions to minimize rework and optimize construction sequencing. Prepare and review construction method statements; interface with the planning team to align design delivery with construction schedules and client milestones. Respond to technical queries (TQs, RFIs) from site and client teams. Support the implementation of design methodologies and quality procedures, contributing to continuous improvement and team efficiency. Liaise with construction, procurement, and client representatives to ensure alignment of design intent with execution requirements. Support the Technical Manager in preparing KPIs, progress reports, and presentations for senior management and client updates. What You Bring To The Team Post‑secondary education in civil engineering. Minimum 10 years’ experience in structural steel/composite design and construction, preferably within nuclear, power, or large‑scale industrial projects. Professional Engineering (P.Eng) designation is considered an asset. Proven track record in constructability reviews and site‑based engineering support. Strong knowledge of ASME codes and nuclear safety standards. Experience drafting and reviewing method statements, risk assessments, and construction schedules. Excellent communication skills with ability to manage queries and interface with multidisciplinary teams. Strong leadership and mentoring skills. Proactive, solutions‑oriented mindset. High attention to detail and safety. Organizational and time‑management skills; ability to prioritize and multi‑task; service oriented. Thrives in a fast‑paced environment. Diversity & Inclusion Aecon fosters diversity, inclusion and belonging within and across our organization. We welcome all to apply, including women, visible minorities, Indigenous peoples, persons with disabilities, and persons of any sexual orientation or gender identity. We strongly encourage Indigenous applicants for the Darlington New Nuclear Project. We are committed to adhering to the objectives and requirements outlined in the Accessible Canada Act (ACA), and to meeting the accessibility needs of persons with disabilities in a timely manner. Appropriate accommodations will be provided upon request throughout the interview and hiring process. Seniority Level Mid‑Senior level Employment Type Full‑time Job Function Engineering and Information Technology Industry Construction References increase your chances of interviewing at Aecon Group Inc. by 2x. To apply, please submit your resume and cover letter to hr@aecon.com. #J-18808-Ljbffr