Site Superintendent

Who We Are

O.N. Site Construction Inc. is a full-service general contracting and project management construction company serving some of Canada’s top organizations since 2005. With headquarters in Oakville, Ontario and regional offices in Calgary, Saskatoon, and Victoria, we deliver projects ranging from small interior renovations to complex multi-million-dollar builds. Our reputation is built on quality workmanship, exceptional service, and a commitment to service, safety, and sustainability.

Who are we looking for

We’re seeking a Site Superintendent who is hands-on, proactive, and skilled at managing projects, trades, and stakeholders on-site. While our Head Office is located in Oakville, project sites are located throughout Ontario, with potential projects across Eastern Canada. This role requires flexibility to travel and work at various project locations based on business needs.

What will you do

• Oversee day-to-day on-site construction activities, ensuring timelines, budgets, and quality standards are met


• Coordinate subcontractors, suppliers, and internal teams, maintaining clear communication with the Project Manager


• Review and interpret architectural, mechanical, and structural drawings


• Monitor scope, schedule, and performance of all trades to ensure client expectations are met


• Enforce site safety protocols and Ministry of Labour regulations


• Maintain worksite cleanliness and organization


• Perform hands-on work when needed (demolition, carpentry, general construction support)


• Anticipate issues, problem-solve proactively, and report progress to Senior Management


• Build strong relationships with clients, consultants, subcontractors, and trades

What you need to succeed 

• 3–5 years of on-site construction supervision experience


• Post-secondary education in Construction Management, Architectural Science, or Engineering is preferred


• Experience in commercial or interior fit-out projects


• Proficient in reading blueprints, drawings, and construction documents


• Strong understanding of construction procedures, materials, and specifications


• Knowledge of Ontario Occupational Health & Safety regulations


• Excellent leadership, communication, and organizational skills


• Effective problem-solving and decision-making abilities


• Valid driver’s license and access to a vehicle


• Experience in financial services or restaurant industry projects is a plus


• Flexible to work evenings, weekends, and occasional out-of-province travel

What’s in it for You

• Competitive salary


• RRSP contribution matching program


• Health and dental benefits plan


• Career growth and development opportunities


• Work with experienced, collaborative, and supportive construction professionals


• Exposure to diverse, challenging projects with high-profile clients

Vision and Values

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

Our values guide every project we take on and shape our company culture:

• 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.

O.N. Site Construction Inc. is committed to a process that is inclusive, barrier free and a workforce that reflects the diversity of our community. We encourage applications from all qualified individuals including applicants from all backgrounds.