Job Description

Senior Project Manager – Mechanical Contracting

Your new company

W.A. Stephenson Mechanical Contractors Ltd. (WASM) is an acclaimed Water Wastewater and Energy Contractor with a rich legacy spanning 45 years in Ontario, Canada. Established in 1977, WASM has built a trusted reputation for excellence, integrity, and specialization in the water and wastewater industry. They are recognized experts in pipe fitting, steam fitting, plumbing, equipment, and custom fabrication, handling complex phased construction projects. Their team of highly skilled professionals, including estimators, coordinators, project managers, site superintendents, and certified tradespeople, work seamlessly to deliver outstanding results for projects ranging from infrastructure development to comprehensive turnkey plant retrofits. They pride themselves on unparalleled craftsmanship, reliability, and a commitment to quality and dependability.

Your new role

As the Senior Project Manager (SPM), you will be accountable for the full lifecycle delivery of major mechanical contracting projects, typically ranging from $1M to $25M+ in value. Based in Ontario, Canada, you will report to the Operations Manager and lead cross-functional teams, managing relationships with clients, subcontractors, and internal stakeholders to ensure projects are delivered safely, on time, within scope, and on budget.

Your key responsibilities will include:

• Project Execution & Controls: Developing and overseeing project schedules using CPM tools, directing resource allocation, and monitoring earned value, schedule adherence, and risk.
• Pre-construction & Tendering: Participating in bid reviews and construction assessments, collaborating on tender preparation, and identifying risks and opportunities in subcontract scopes and specifications.
• Financial Management: Preparing and tracking job cost budgets and forecasts, approving invoices, managing change orders, and ensuring proactive cost control.
• Client & Stakeholder Relations: Acting as the primary point of contact for owners, consultants, and municipal clients, leading progress meetings, and fostering long-term relationships.
• Safety & Compliance: Championing WASM’s “Zero Tolerance for Unsafe Acts and Conditions” policy and ensuring compliance with all safety requirements.
• Leadership & Mentorship: Leading and coaching project coordinators, site superintendents, and trades teams, promoting professional development, and upholding WASM’s core values.
• Quality & Commissioning: Enforcing QA/QC protocols, overseeing pre-startup planning, and coordinating with engineers and vendors to resolve technical issues.

This hybrid role combines office work with site visits and occasional travel across Ontario.

What you'll need to succeed

To be successful in this role, you will need:

• A Bachelor’s degree in Mechanical Engineering, Construction Management, or a related discipline.
• 10+ years of progressive project management experience in mechanical contracting, with a preference for experience in the water/wastewater or ICI sectors.
• Proven leadership on projects exceeding $5M in contract value.
• Deep understanding of mechanical systems, piping, HVAC, fabrication, and process equipment.
• Strong proficiency in MS Project, Jonas, Bluebeam, and other relevant construction software.
• Excellent interpersonal, communication, and negotiation skills.
• A valid driver’s license and willingness to travel to project sites across Ontario.
• PMP or Gold Seal Certification is considered a significant asset.

What you'll get in return

Joining W.A. Stephenson means more than just managing projects; you’ll be helping to build and protect the essential infrastructure that keeps communities safe and sustainable. In return for your expertise and dedication, you will receive:

• Competitive compensation and benefits.
• A safety-first, team-oriented culture.
• Long-term project backlog across Ontario, ensuring stability and continuous work.
• Significant professional growth and leadership opportunities.
• The chance to contribute to a company with a strong legacy of excellence, backed by union strength and client trust.

At W.A. Stephenson, their promise is simple: Safe. Right. On Time.

What you need to do now

If you're interested in this role, click 'apply now' to forward an up-to-date copy of your CV, or call us now.

If this job isn't quite right for you, but you are looking for a new position, please contact us for a confidential discussion on your career.

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