Position Title:  Tunneling Manager

Come Build Your Career at Aecon!

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 of our generation, at the forefront of transformational change in transportation and energy, and partnering every day to build, connect, power, and strengthen our communities.

At Aecon, you can count on:

• Safety Always. Our number one core value. If we can’t do it safely, we don’t do it at all.
• Integrity. We lead by example, with humility and courage.
• Accountability. We’re passionate about delivering on our commitments.
• Inclusion. We provide equitable opportunities for everyone.

We lead the infrastructure industry with purpose, and our people are at the heart of everything we do. So, we invest in our people, just like they invest in us! 

At Aecon we:

• Ensure you and your family receive the services needed to support your mental, emotional, and physical well-being.
• Believe in helping you build your career through our Aecon University and Leadership Programs.
• Are committed to supporting and investing in inclusive work environments, through initiatives like Equity, Diversity & Inclusion training, our Aecon Women in Trades and Aecon Diversity in Trades programs, and our Employee Resource Groups (ERGs) to ensure we are building inclusion into every aspect of our culture at Aecon.
• Are a leader in sustainable construction. With a strong commitment to operating responsibly by minimizing our impact on the environment and surrounding communities.

Our business success relies on strong execution and continuous improvement – driven by the diversity, expertise and teamwork of our people. We’re always searching the globe for innovative, collaborative minds to join our best-in-class Aecon community!

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.

This position will report directly to the Project Director and will be responsible for planning, coordinating, and executing all tunneling activities, including Tunnel Boring Machine (TBM) operations, site support, and logistics. This role ensures compliance with safety standards, quality requirements, and project schedules while managing multidisciplinary teams and subcontractors.

What You’ll Do Here:

• Oversee the team managing all temporary structures linked to TBM assembly and launch (TBM shield cradle, TBM back up cradle, thrust frame, etc.)

• Develop tunneling work plans, schedules, and resource allocation strategies.
• Oversee TBM operations, including assembly, launch, and maintenance.
• Ensure alignment with geotechnical conditions and design specifications.
• Enforce strict adherence to safety protocols and regulatory requirements.
• Conduct toolbox talks, hazard assessments, and safe work reviews.
• Provide mentorship and performance management for team members.
• Implement QA/QC programs for tunneling works, including ring building and grout injection.
• Monitor ground conditions and ensure proper installation of support systems.
• Liaise with engineering, logistics, and surface works teams.
• Maintain accurate progress reports, shift logs, and production metrics.
• Escalate safety or quality issues promptly.

What You Bring to the Team:

• A bachelor’s degree in civil engineering or a related field.
• 10 years in tunneling or underground construction, including TBM (Tunnel Boring Machine) operations and tunnel cross-passages experience.
• Minimum 10 years’ relevant supervisory experience on large-scale infrastructure projects.
• Minimum 5 years’ mining experience, with the knowledge of TBM and mining systems.
• Experience with developing methodologies to ensure compliance with the scope of work and technical criteria.

• Self-directed, motivated team player who thrives in a fast-paced environment.
• Excellent computer skills.
• Strong coordination and organization skills, with strict emphasis on accuracy and attention to detail.
• Ability to communicate effectively, both verbal and written, with all internal organization departments, alliance partners, subcontractors, and regulatory authorities.
• Comfortable working in both settings, in-office and on-site.
• Must have a valid driver’s license.

Reason for vacancy: Replacement

We strongly encourage applicants who identify as Indigenous to apply to work with us on the Darlington New Nuclear Project. At Aecon, Indigenous is an umbrella term for First Nations (status and non-status), Metis and Inuit.

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 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. Through the implementation of the requirements of the ACA and its applicable regulations, appropriate accommodations will be provided upon request throughout the interview and hiring process.

As part of our commitment to fair and transparent hiring practices, Aecon may use artificial intelligence (AI) tools to assist in screening and reviewing candidates. These tools are applied responsibly and in accordance with applicable privacy laws and Aecon’s AI Usage Policy. All final decisions are made by qualified Aecon team members.