Senior Mechanical Engineer - Building Systems Lead

WSP USA; Vaughan; Hybrid; CAD 95,000 - 131,000; Full time

Benefits offered by this job

Top 100 Employer in Canada 2026

Flexible work options

Global opportunities

Job summary

WSP Canada in Vaughan is seeking a Senior Mechanical Engineer to join our Buildings M&E team, shaping HVAC, plumbing and fire protection for diverse Canadian projects. You'll lead design through construction, collaborate with architects, contractors and clients, and apply Revit and HAP for load calculations while ensuring code compliance and quality at pace.

With 10+ years of experience, you will mentor junior staff, coordinate multi-location programs, and help advance Ontario standards across

Qualifications

• 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.

Responsibilities

• 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.

Skills

Mechanical Engineering

Professional Engineer

Revit

HAP

HVAC design

Building codes

Education

P.Eng. licensure

Tools

AutoCAD

Revit

Job description

WSP Canada in Vaughan is seeking a Senior Mechanical Engineer to join our Buildings M&E team, shaping HVAC, plumbing and fire protection for diverse Canadian projects. You'll lead design through construction, collaborate with architects, contractors and clients, and apply Revit and HAP for load calculations while ensuring code compliance and quality at pace.

With 10+ years of experience, you will mentor junior staff, coordinate multi-location programs, and help advance Ontario standards across