Sr. Cost Controller

Location: Bowmanville

Come Build Your Career at Aecon!
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.
At Aecon, you can count on:
Safety Always. Our number one core value. The safety of our people, projects, partners, and stakeholders is our priority focus – today and always.
Integrity. We lead by example, with humility and courage.
Accountability. We’re passionate about delivering on our commitments.
Inclusion. We provide opportunities where people feel valued, supported, and empowered to contribute fully.
We deliver infrastructure with purpose, and our people are at the heart of everything we do. Aecon employees are incredibly proud to build some of the most impactful infrastructure of this generation – we call it Aecon Proud.
At Aecon we:
Ensure you and your family receive the services and benefits needed to support your mental, emotional, and physical well-being.
Are intentional when it comes to investing in your development. We help you build your career and advance your skills through our Aecon University, tuition reimbursement, and Leadership Programs.
Are committed to creating work environments focused on mutual respect, teamwork, collaboration, and new ideas, through meaningful initiatives, training, partnerships with Veteran groups, our Aecon Women in Trades and diversity programs, as well as our Employee Resource Groups (ERGs), to ensure we are building with top talent and harnessing our collective strengths within every aspect of our culture.
Operate responsibly by managing risk, safety, and environmental considerations across all our projects and surrounding communities.
Our success is built on the passion, expertise, and dedication of our people. Together, we embrace strong execution, innovation, and continuous improvement — values that come to life through the unique talents and collaborative spirit of every team member. If you’re inspired to make a difference through future-building projects, join our best-in-class team.
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.
The Sr. Cost Controller will be responsible in providing cost control support to ongoing projects and supporting the company’s estimating and construction teams to ensure that the company’s project control system is properly implemented and utilized.
What You’ll Do Here:
Overall responsibility for compliance of assigned projects with project controls standards - both from applicable contract documents and from Aecon project controls policies/guidelines
Assist in project set-up, converting bids into baseline budgets, reconciling gaps.
Participate in proposal and estimating efforts to ensure continuity between project estimates and baselines.
Liaise with external groups (Accounting, Finance, Procurement, Construction, etc.) to gain inputs into Project Controls reports.
Create & maintain project status update reports, forecast reports & project dashboards; ensure timely issuance to internal & external stakeholders (per client requirements)
Create & maintain customized reports or dashboards to adapt to evolving risks & project needs.
Develop and maintain resource plans, ensuring cost & schedule alignment.
Regularly conduct variance analysis to…