Who We Are

Since 2005, O.N. Site Construction Inc. has provided general contracting and professional project management services to some of Canada's top companies. We are known for quality workmanship, exceptional service, and national reach—with projects spanning the GTA, Northern Ontario, Manitoba, Alberta, and BC. From small interior renovations to complex, multi-million-dollar builds, we deliver results that exceed expectations.

We operate on three strategic pillars: service, safety, and sustainability. We view ourselves as an extension of our clients, committed to delivering value through partnership and performance.

Our Culture

Our vision is to be Canada's preferred partner for superior service and project delivery.

Our values shape how we work—and define our culture. At O.N. Site, our culture is built on:

• People are our foundation and bring our vision to life. We know that when they thrive, so do our clients.
• Service is at the core of O.N. Site. We focus on understanding our clients' vision and exceeding their needs because true success is getting the next job.
• Collaboration drives us –internally and externally. By working together, we elevate ourselves and become more than the sum of our parts.
• Innovation fuels O.N. Site. It transforms ideas into results, meets evolving client needs, sustains growth, and fosters a culture of continuous improvement where there is no finish line.
• Quality defines us. We deliver top-tier construction projects that ensure customer satisfaction, embedding a culture of excellence.
• Safety comes first. At O.N. Site, we believe that zero accidents is the only goal.

The Role

We are seeking a full-time, experienced Project Manager to join our team based out of our head office in Oakville, Ontario. You'll lead commercial and industrial interior fit-outs and renovation projects ranging from $200K to $15M. This role involves both office and on-site work.

You'll coordinate project planning, implementation, and delivery—overseeing schedules, budgets, and teams to ensure excellence from start to finish.

Key Responsibilities

• Manage multiple projects and Site Superintendents simultaneously.
• Oversee project budgets, timelines, and estimates.
• Monitor construction progress and ensure quality standards are met.
• Build and maintain strong relationships with trade partners, consultants, and clients.
• Anticipate risks and embed solutions into plans.
• Prepare change orders and provide consistent high-level client service.
• Report directly to Senior Management.

Qualifications

• 4–6 years of relevant experience (Project Manager or Site Supervisor experience preferred).
• Post-secondary education in Construction Management, Engineering, Architectural Science—or equivalent experience.
• Strong communication, problem-solving skills, and attention to detail.
• Proficiency in Microsoft Office and project management software.
• Familiarity with Jonas Premier or comparable construction management software is considered a strong asset.
• Ability to read and interpret architectural, mechanical, electrical, and structural drawings.
• Knowledge of OHSA regulations and safety standards.
• Experience in commercial/industrial construction is an asset.
• Valid driver's license and access to a vehicle required.
• Highly organized and self-motivated.

Working Conditions

• Flexibility to work evenings/weekends as needed, based on project demands.
• Occasional out-of-province travel may be required.

What We Offer

• Work with a supportive team of construction professionals delivering work for established brands.
• Career growth in a company that values and recognizes employee contributions.
• An energizing, high-performance work environment that's committed to excellence.

Join Us

O.N. Site Construction Inc. is committed to creating an inclusive and barrier-free recruitment process. We encourage applications from all qualified individuals, including those from diverse backgrounds.

Interested candidates can send their resume to [email protected] highlighting relevant experience and skills. We look forward to hearing from you.