WSP is looking for a Senior Mechanical Engineer to work across the full project lifecycle, delivering high‑quality, cost‑effective designs for commercial, residential, retail, and institutional building projects. The role involves mentoring junior staff and building strong client relationships.

Responsibilities

Lead mechanical building design projects from concept through construction

Apply professional engineering judgement to ensure technical excellence, constructability, and cost effectiveness

Design and coordinate HVAC, plumbing, fire protection, and fuel systems for complex building projects

Ensure designs comply with National, Provincial, and Municipal codes and standards

Research and implement innovative and sustainable mechanical design solutions aligned with client objectives

Manage select projects including budgets, schedules, and milestone deliverables

Collaborate with clients, stakeholders, and internal teams through meetings, proposals, and business development efforts

Mentor and peer‑review the work of junior engineers and designers to support team growth and quality outcomes

Qualifications

Degree in Mechanical Engineering from an accredited institution or equivalent

Professional Engineer (P.Eng.) licensed in Ontario

10+ years of experience in a mechanical consulting engineering environment

Robust working knowledge of Canadian building codes and standards

Proficiency with AutoCAD, Carrier HAP or Trane TRACE, and Microsoft Office





Experience using MEP Revit is highly desirable

LEED accreditation and sustainable design experience are considered strong assets

PMP designation or willingness to pursue is an asset

Ability to obtain and maintain a Secret level security clearance

Benefits

Proudly Canadian – Top 100 Employer in Canada for 2026

Global community of brilliant minds, opportunities across country and globally

Limitless opportunities for growth and career tailoring

Flexible work promoting work‑life balance

Compensation
BC, AB, SK, NWT & NT: $104,100 – $138,000
MB & ON: $95,000 – $130,800
Atlantic Provinces & QC: $88,500 – $124,900

Health and Safety
Health and Safety is a core paramount value of WSP. Candidates are expected to comply with our Health, Safety & Environment (HSE) policy at all times, including client HSE policies when working at client locations. Some safety‑sensitive positions may involve fieldwork in a variety of environments, including remote or isolated areas and inclement weather.

EEO and Accessibility
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.

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📌 Senior Mechanical Engineer - Buildings Projects (Ontario)
🏢 WSP in Canada
📍 Ontario