North America Construction (1993) Ltd. – NAC Constructors Ltd. (NAC) is well known for our expertise in water and wastewater construction across Canada. Our self‑performing team of almost 500 skilled professionals and experts in trades and engineering comprehensively handles projects from conceptualization to delivery. We also have extensive experience in fields such as civil, structural, process mechanical, building mechanical, electrical and instrumentation work. At NAC, our priority is to maintain the highest level of quality and safety. The depth of our resources is evident in the variety of projects we construct; from water filtration to wastewater treatment; dams to ethanol; we build it all…and more!

NAC is currently seeking a Commissioning Lead , initially for various Water and Wastewater Treatment Plant projects in the York Region and Greater Toronto Area.

Position Summary
NAC Constructors Ltd. is seeking a Commissioning Lead to oversee commissioning, start‑up, and handover activities for construction projects. The role is responsible for developing and executing commissioning strategies across mechanical, electrical, and control systems, ensuring compliance with contract requirements, schedules, budgets, and quality standards. The Commissioning Lead will direct commissioning activities from planning through turnover, including coordination with project teams, subcontractors, consultants, and clients.

Responsibilities

Lead all commissioning activities from planning through start-up, testing, verification and handover

Develop and implement comprehensive commissioning plans, including system boundaries,



scopes and execution strategies

Integrate mechanical, electrical and commissioning schedules into overall project timelines

Coordinate M&E; activities to ensure compliance with contract specifications, schedules and quality requirements

Manage Red Tag / Green Tag system for equipment start-up, testing and safety control

Review installations prior to commissioning and identify deficiencies with site teams

Prepare, submit and manage commissioning plans, documentation and turnover packages

Chair commissioning meetings and distribute minutes

Supervise and witness commissioning tests, inspections and performance verification

Maintain commissioning documentation, including Article E updates and related contract records

Support preparation of project documentation such as CRXs, CANs and NCPCs

Provide technical input during design and construction coordination meetings

Ensure best practices for turnover, preservation and change management processes

Provide commissioning support to additional NAC Ontario projects as required

Requirements

Construction‑related degree, diploma or equivalent experience (3‑5 years minimum)

Experience commissioning mechanical, electrical and control systems,



preferably in municipal infrastructure

Experience with wastewater treatment or pumping station projects ($10M–$20M) is an asset

Strong knowledge of construction processes, engineering drawings, scheduling, safety and cost control

Demonstrated ability to develop and execute commissioning plans and manage project delivery

Robust leadership, communication, negotiation and problem‑solving skills

Ability to work with multidisciplinary teams and manage stakeholder relationships

Flexible, organized and able to manage shifting priorities and deadlines

Ability to work on‑site for commissioning events, with occasional work from home

Valid WHMIS and Health & Safety Awareness Training for Supervisors

NAC Offers

Competitive compensation

Opportunities for growth opportunities, development and advancement, including financial assistance

Comprehensive benefit plan (dental, vision, health, etc.)

Employee & Family Assistance Program

Excellent company matched pension plan

Registered Retirement Savings Plans

Additional time off between Christmas and New Year’s Day

Community involvement opportunities

Friendly working environment

Numerous team activities and various company events

NAC is committed to providing equal opportunities for all individuals to achieve their goals. If you feel that you need accommodations during the recruitment and selection process because of illness or disability, please contact Human Resources for further information.

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📌 Commissioning Lead (Ontario)
🏢 North America Construction
📍 Ontario