Senior Mechanical Engineer, Mission Critical Buildings

WSP; Vaughan; On-site; CAD 95,000 - 131,000; Full time

Job summary

WSP is seeking a Senior Mechanical Engineer for Mission Critical Buildings in Canada. You will lead mechanical design and delivery for data centers, guiding multidisciplinary teams and partnering with clients to advance cooling solutions across enterprise, colocation, hyperscale, and AI environments.

You will mentor engineers, coordinate with electrical, structural, and controls teams, and contribute to proposals and practice growth while ensuring reliable operations and scalable performance.

Qualifications

• Bachelor's degree in Mechanical Engineering and a Professional Engineer (P.Eng.) designation.
• 10+ years of progressive mechanical engineering experience, including mission critical facilities.
• Expertise in chilled water systems, cooling plants, pumping systems, heat rejection equipment, and air- and liquid-cooled data center architectures.

Responsibilities

• Lead mechanical design and delivery for complex mission critical facilities and data centers.
• Coordinate multidisciplinary teams and work with clients, contractors, utilities, vendors, and commissioning personnel.
• Prepare and review basis-of-design reports, specifications, calculations, and construction documents.

Skills

Project leadership

Client coordination

CFD analysis

Thermal optimization

Education

Bachelor's degree in Mechanical Engineering

P.Eng. designation

Job description

Senior 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. 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 unify to power local solutions.
We are pathfinders and impact makers.
We are Visioneers.
We are WSP

The Opportunity

Design What Comes Next
Shape resilient, scalable, maintainable, and energy-efficient mechanical infrastructure for mission critical and data center facilities across Canada. In this senior technical leadership role, you will guide multidisciplinary teams, partner directly with clients, and advance cooling solutions for enterprise, colocation, hyperscale, AI, cloud, and high-performance computing environments.

Your Impact

You will lead mechanical design and technical delivery for complex mission critical facilities, helping clients achieve reliable operations, efficient performance, and capacity for future growth:

Lead the planning, design, and delivery of mechanical systems for enterprise, colocation, hyperscale, AI, cloud, and high-performance computing data centers.

Develop chilled water, pumping, heat rejection, air-cooled, and liquid-cooled solutions that support reliability, redundancy, maintainability, and operational continuity.

Integrate high-density cooling technologies, including direct-to-chip cooling, immersion cooling, rear-door heat exchangers, and coolant distribution units.

Perform and review thermal calculations, load assessments, cooling capacity studies, energy analyses, CFD studies, and airflow optimization strategies.

Coordinate mechanical design with electrical, structural, civil, controls, telecommunications, commissioning, and architectural disciplines.

Prepare and review basis-of-design reports, specifications, technical studies, calculations, and construction documents that enable confident project decisions.

Guide site visits, construction administration, commissioning, integrated systems testing, and operational readiness activities.

Mentor engineers and designers, strengthen client relationships, and contribute to proposals, strategic pursuits, and practice growth.

The Skills That Set You Apart

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

More than 10 years of progressive mechanical engineering experience, including mission critical facilities, data centers, healthcare, industrial, advanced technology, or other complex infrastructure.

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

Experience with enterprise, colocation, hyperscale, AI, cloud, or high-performance computing projects, including Tier III or Tier IV facilities.

Knowledge of direct-to-chip cooling, immersion cooling, coolant distribution units, rear-door heat exchangers, CFD analysis, and thermal optimization.

Experience coordinating multidisciplinary teams and working directly with clients, contractors, utilities, vendors, and commissioning personnel.

Ability to balance technical excellence, project execution, client expectations, and commercial objectives while providing clear technical guidance.

Readiness to participate in site visits, commissioning, integrated systems testing, operational readiness reviews, and construction administration.

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: $104,100–138,000

MB & ON: $95,000–130,800

NB, NL, NS, PE & QC: $94,100–124,900

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.