Lead Mechanical Engineer, Mission Critical Buildings

WSP; Vaughan; On-site; CAD 112,000 - 163,000; Full time

Job summary

WSP is seeking a Lead Mechanical Engineer to spearhead the design of resilient, scalable, mission-critical facilities across Canada, enabling AI, HPC, and cloud workloads. You will guide multidisciplinary teams as Engineer of Record, advancing cooling performance and energy efficiency while ensuring quality and constructability.

The role requires 10+ years in mission-critical environments, a P.Eng., and Canadian licensure.

Qualifications

• Bachelor's degree in Mechanical Engineering and a Professional Engineer (P.Eng.) designation.
• Professional licensure in Ontario, Alberta, and/or British Columbia, with the ability to fulfill Engineer of Record responsibilities.
• 10+ years of progressive mechanical engineering experience, including significant work in mission-critical and data center environments.
• Demonstrated expertise in chilled water systems, cooling plants, pumping systems, heat rejection equipment, and air- and liquid-cooled data center architectures.
• Experience integrating Cooling Distribution Units and rack-level liquid cooling for high-density AI and HPC computing environments.
• Practical experience applying CFD analysis and BIM-based delivery within multidisciplinary project teams.
• Working knowledge of critical electrical infrastructure, including utility services, standby generation, UPS systems, power distribution, and redundancy concepts.

Responsibilities

• Lead mechanical design, technical delivery, and quality oversight for enterprise, colocation, and hyperscale data center projects.
• Serve as Engineer of Record for assigned projects, reviewing and approving engineering deliverables for technical excellence, compliance, quality, and constructability.
• Shape resilient cooling strategies using chilled water plants, heat rejection systems, pumping systems, air-cooled solutions, and liquid-cooled architectures.
• Advance AI- and HPC-ready infrastructure through direct-to-chip liquid cooling, immersion cooling, rear-door heat exchangers, and Cooling Distribution Units.
• Direct Computational Fluid Dynamics analyses to improve airflow management, thermal performance, cooling capacity, and facility efficiency.
• Integrate mechanical systems with electrical, structural, civil, controls, commissioning, and operational requirements to deliver coordinated solutions.
• Champion BIM and digital engineering practices that strengthen coordination, constructability, project execution, and lifecycle performance.
• Grow client trust and team capability through technical advice, mentoring, proposals, presentations, strategic pursuits, and continuous improvement of engineering standards.

Skills

CFD analysis

BIM

Data center cooling

Engineering leadership

Travel willingness

Education

Bachelor's degree in Mechanical Engineering

P.Eng. designation

Ontario/Alberta/BC licensure

Tools

CFD software

Revit/BIM tools

Job description

Lead Mechanical Engineer, Mission Critical Buildings

• Thornhill, ON, Canada
• Toronto, ON, Canada

Job Description

What if you could redefine what's possible? With us, you can.

With us, you can. You want Purpose. Growth. Opportunity. People who get it.

We are the home of ambitious, passionate, and innovative world shapers.

With an unmatched breadth and depth of engineering, advisory and science-based expertise, our global minds unite to power local solutions.

We are pathfinders and impact makers.

We are Visioneers.

We are WSP

The Opportunity

Design What Comes Next

Lead the mechanical design of resilient, scalable, mission-critical facilities that enable cloud, artificial intelligence, and high-performance computing across Canada. As a technical leader and Engineer of Record, you will guide multidisciplinary teams and clients through complex data center projects, advancing cooling performance, operational continuity, energy efficiency, and long-term value.

Your Impact

Lead mechanical design, technical delivery, and quality oversight for enterprise, colocation, and hyperscale data center projects.

Serve as Engineer of Record for assigned projects, reviewing and approving engineering deliverables for technical excellence, compliance, quality, and constructability.

Shape resilient cooling strategies using chilled water plants, heat rejection systems, pumping systems, air-cooled solutions, and liquid-cooled architectures.

Advance AI- and HPC-ready infrastructure through direct-to-chip liquid cooling, immersion cooling, rear-door heat exchangers, and Cooling Distribution Units.

Direct Computational Fluid Dynamics analyses to improve airflow management, thermal performance, cooling capacity, and facility efficiency.

Integrate mechanical systems with electrical, structural, civil, controls, commissioning, and operational requirements to deliver coordinated solutions.

Champion BIM and digital engineering practices that strengthen coordination, constructability, project execution, and lifecycle performance.

Grow client trust and team capability through technical advice, mentoring, proposals, presentations, strategic pursuits, and continuous improvement of engineering standards.

The Skills That Set You Apart

Bachelor's degree in Mechanical Engineering and a Professional Engineer (P.Eng.) designation.

Professional licensure in Ontario, Alberta, and/or British Columbia, with the ability to fulfill Engineer of Record responsibilities.

10+ years of progressive mechanical engineering experience, including significant work in mission-critical and data center environments.

Demonstrated expertise in chilled water systems, cooling plants, pumping systems, heat rejection equipment, and air- and liquid-cooled data center architectures.

Experience integrating Cooling Distribution Units and rack-level liquid cooling for high-density AI and HPC computing environments.

Practical experience applying CFD analysis and BIM-based delivery within multidisciplinary project teams.

Working knowledge of critical electrical infrastructure, including utility services, standby generation, UPS systems, power distribution, and redundancy concepts.

Ability and willingness to travel periodically within Canada for client meetings, site visits, commissioning, project start-up, and business development.

Why Choose WSP?

Why Choose WSP? We exist to shape communities to advance humanity. The brightest engineers, advisors and scientists from across the globe call WSP home.

Proudly Canadian – we are a Top 100 Employer in Canada for 2026.

A global community of brilliant minds – your next idea, mentor, or opportunity is always within reach.

Limitless opportunities start here. Whether it’s across the country or around the globe, we help you tailor your role to match your ambition — because your growth drives ours.

Flexible work, real balance – we recognize the importance of balance in our lives and encourage you to prioritize the balance in yours.

#WeAreWSP

Compensation

AB, BC, NT, NU, SK & YT: $122,900 - $162,800

MB & ON: $112,100 - $154,400

NB, NL, NS, PE & QC: $111,000 - $147,400

Disclosure: The final salary awarded for this role may vary from the above range based on several factors including, but not limited to, relevant education, qualifications, certifications, experience, skills, seniority, geographic location, performance, and business or organizational needs. The wage range provided in this job posting may be subject to change for business purposes.

Ready to Shape the Future?

Bring your mission critical expertise to WSP and help design the resilient, high-performing infrastructure behind the next generation of digital technology.

About Us

At WSP, we exist to shape communities to advance humanity.

It’s why we bring people together who are wired to solve complex challenges - engineers, scientists, advisors, and technical experts who are driven by a common passion - to redefine what’s possible and shape what comes next.

As one of the world’s leading professional services firms, we partner with clients across transportation, infrastructure, environment, buildings, energy, water, mining and metals. We pair deep local knowledge with global insights to pioneer solutions designed to leave a lasting, positive impact.

At WSP, you’ll join a community of brilliant minds that push boundaries every day - applying deep expertise and fuelling innovation to help create a more connected and resilient future. Here, your ideas are valued, your growth is supported, and you are encouraged to bring your authentic self to work. We empower our people to collaborate across disciplines, challenge the status quo, and shape a career with purpose.

Join us.

Please Note:

Health and Safety is a core paramount value of WSP. Given the importance of keeping one another safe it is expected that you comply with our Health, Safety & Environment (HSE) policy at all times as well as client HSE policies when working at client locations. Full details here .

Some safety-sensitive positions involve fieldwork and may include work in a variety of environmental conditions, such as remote or isolated areas, working alone, and in inclement weather (within safe and reasonable limits).

WSP welcomes and encourages applications from people with disabilities. Accommodations are available on request for candidates taking part in all aspects of the selection process.

WSP is committed to the principles of employment equity. Only the candidates selected will be contacted.

WSP does not accept unsolicited resumes from agencies. Full details here .