Senior Mechanical Engineer, Buildings

WSP

Thornhill, Canada
Salary not disclosed
Employment type: Full-time
Level: Senior

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Description (EN)

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 unite to power local solutions.

We are pathfinders and impact makers.

We are Visioneers.

We are WSP.

The Opportunity

Design What Comes Next

Bring your mechanical engineering expertise to WSP’s Buildings M&E team and help shape spaces where people work, shop, receive care, and connect. You’ll contribute to diverse Canadian projects spanning commercial buildings, retail environments, warehouses, tenant fit-outs, niche healthcare clinics, and specialty spaces. Many assignments involve multi-location programs, offering exposure to national standards and coordination challenges that go beyond single-site work.

Working alongside architects, landlords, contractors, and multidisciplinary colleagues, you’ll turn technical requirements into practical, coordinated solutions while helping projects move effectively from design through construction.

Your Impact

Design mechanical building systems, preparing drawings and specifications for HVAC, plumbing, drainage, and fire protection using Revit and AutoCAD.
Develop heating and cooling load calculations, equipment selections, and coordinated ductwork, piping, and sprinkler head layouts.
Apply OBC, ASHRAE, NFPA, client standards, and other applicable requirements to deliver technically sound designs.
Support projects through construction by responding to RFIs, reviewing shop drawings, and conducting site visits.
Coordinate with electrical designers and other disciplines to create integrated building solutions.
Strengthen design quality by participating in internal QA/QC processes and technical reviews, including reviewing and sealing peer-prepared materials where appropriate.
Collaborate directly with clients, project stakeholders, architects, landlords, and contractors while managing multiple assignments in a fast-track environment.

The Skills That Set You Apart

Bachelor’s degree in Mechanical Engineering and licensure as a Professional Engineer (P. Eng.).
10+ years of experience in mechanical building systems design.
Proficiency in Revit, with the ability to use it effectively on multidisciplinary building projects.
Experience with HVAC calculation tools such as HAP, including heating and cooling load calculations and equipment selection.
Strong working knowledge of OBC, ASHRAE, NFPA, and other applicable mechanical building codes and standards.
Demonstrated ability to communicate technical information clearly in client-facing and multidisciplinary project environments.
Ability to work independently, prioritize competing demands, and deliver across multiple fast-paced assignments.
Experience coordinating project teams and draftspersons is an asset.

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.

Make Your Mark with WSP

Ready to design what comes next?

Bring your mechanical engineering expertise to a team delivering diverse, high-impact building projects across Canada. Apply today and help create practical, high-performing spaces that meet our clients’ needs and make a lasting impact.

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. We are Visioneers.

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.

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Published 1 day ago