Aecon delivers some of the most complex and impactful infrastructure projects — from transformative transportation networks to critical energy, industrial and nuclear programs. The projects we build connect communities and power future generations. With deep roots in North America and a strong footprint internationally, Aecon brings global expertise and proudly serves public and private sector clients through its Construction and Concessions segment.

Safety

Always is not only our #1 core value – it is the standard that anchors our culture. We believe the most ambitious projects deserve the most committed people. At Aecon, you won’t just build your career — you’ll help build what matters to enable future generations to thrive.

What Is the Opportunity? As part of an alliance agreement, Aecon has been awarded a contract in an Aecon-led partnership with Kiewit Nuclear Canada by Ontario Power Generation (OPG) for the execution phase on the Darlington New Nuclear Project (DNNP) in Clarington, Ontario. Beginning in 2025 Aecon will support the Construction of the Unit 1 Small Modular Reactor at the Darlington site.

Reporting to the Site Services Manager this role will support the overall management of the DNNP Site. During the readiness phase the Superintendent will assist in construction planning, reviews, and fit for purpose tool development. In execution they will be responsible for the supervision, coordination and scheduling of construction activities for multiple scopes of work in compliance with the contract and the job cost estimate and ensure all the work is completed safely to acceptable standards of quality and workmanship.

What You’ll Do Here - Accountable for work planning and execution on the project including methods of construction, manpower levels, materials, tools & equipment, rentals and work schedules.

- Ensure alignment and partnering with the alliance partners.
- Monitor and review Plans/Schedules and identify risks, and issues.
- Utilize project master schedule to create detailed look ahead schedules.
- Schedule 3‑week, 6‑week, and 12‑week tasks.
- Contribute to long‑term site planning and site logistics.




- Responsibility for the implementation and enforcement of safety, quality and human performance programs.
- Ensure that company policies and project procedures are being adhered to and followed by project personnel.
- Monitor and manage risks, develop recovery strategies when project schedule or budget are in jeopardy.
- Assume responsibility for productivity of direct‑hire trade labour and subcontractors, efficient use of materials and tools & equipment and contractual performance of the project.
- Understanding and support of applicable trade agreements.
- Application of home company discipline policies and appropriate escalation of performance concerns to Site Services Manager.
- Ensure trades personnel complete all necessary training in areas of safety, quality assurance, technical qualifications, equipment operation and owner specified requirements.
- Review and provide support in the creation of Construction Work Packages.
- Review and approve purchase requisitions.
- Review and approve Purchase Orders within Limits of Authority.
- Ensure project is constructed in compliance with drawings, specifications, Construction Work Packages and project schedule and budget.
- Interface with client representatives, design engineers, consultants, other contractors, etc.
- Ensure project is constructed in accordance with QA Programs and project quality.
- Other duties as required or assigned.
- Perform regular field tours to check work progress and meet with project site personnel.
- Carry out site safety inspections.
- Participate in company‑wide initiatives aimed at overall continuous improvement.
- Review and approve timesheets, expense reports, vacation requests, and training requests, within Limits of Authority.




- Hold daily meetings with team members to review priorities, progress, and constraints.
- Responsible for performance management of all direct‑report employees, including coaching/mentoring, assistance with career planning and training, preparation of yearly and mid‑year performance reviews.
- Ensure all project staff and direct reports understand and comply with applicable code of conduct policies (Aecon and customer policy).

What You Bring To The

Team - Minimum of 7 years Civil/Structural construction and subcontractor supervision experience.

- Knowledge of all aspects of construction such as technology, equipment, methods, trade agreements and jurisdiction, engineering, cost control, scheduling and safety requirements.
- Must understand how to support a positive Safety Culture.
- Ability to plan and manage installation sequences, coordinate with engineering to ensure constructability, and communicate updates to project teams and vendors.
- Experience in managing complex nuclear construction projects.
- Ability to read and understand construction drawings, blueprints and specifications.
- Must have a full appreciation of the importance of Quality Assurance Programs and their significance to the nuclear industry. The expected pay range for this role is $130,000 - $170,000 per year. Individual pay is determined based on several factors, including work location, education, experience, unique skills and job conditions. Other considerations may include certifications, specialized training, and the complexity or scope of the role. We strongly encourage applicants who identify as Indigenous to apply to work with us on the Darlington Current Nuclear Project. At Aecon, Indigenous is an umbrella term for First Nations (status and non‑status), Metis and Inuit. Aecon fosters belonging within and across our organization. We are committed to providing equal employment opportunities and considering all applicants without regard to race, color, religion, sex, national origin, age, disability, or any other characteristic protected by applicable local laws.

Location: Oshawa, ON, CA

📌 Site Manager (Oshawa)
🏢 Aecon Concessions
📍 Oshawa