Skip to content

Position Description

Senior Mechanical/Plumbing Engineer
Business Line Buildings
ID # 12375
Job Type Permanent - Full Time
Apply Now

WSP is one of the world's leading professional services firms. Our purpose is to future proof our cities and environments.

We have over 48,000 team members across the globe.  In Canada, our 8,000+ people are involved in everything from environmental remediation to urban planning, from engineering iconic buildings to designing sustainable transportation networks, from finding new ways to extract essential resources to developing renewable power sources for the future.

The excellence we bring to our work and to our workplace has been recognized far and wide. We’re among the LinkedIn Top 25 Companies two years in a row, one of the Top 100 Sustainable Companies in the World (and among the Top 10 in Canada), and we earned Platinum Elite Recognition through our participation in more than half of Canada's Top 100 Infrastructure Projects.

At WSP :

  • We value our people and our reputation
  • We are locally dedicated with international scale
  • We are future focused and challenge the status quo
  • We foster collaboration in everything we do
  • We have an empowering culture and hold ourselves accountable





Where will your career take you? Are you set up for success? Do you want to see the fruits of your work as major, landmark projects take shape? If so, a career with WSP can take you where you want to go.

WSP is currently seeking a Senior Mechanical/Plumbing Engineer to join our Mechanical & Electrical Department, located at our Markham office. Reporting to the Manager, Mechanical this position will be responsible to prepare calculation, conceptual and detail design, technical specification, installation details, AutoCAD / MicroStation and Revit software, permit / tender / post-tender services on various transportation projects, and perform contract admin (CA) services to review shop drawings, RFI’s, etc.  

Working with some of the sharpest minds in Mechanical & Electrical Engineering, you will play an integral role in helping to create and craft exceptional designs and deliver outstanding projects to clients related to (but not exclusive to) the Rail & non-Rail Transportation sectors. 

With so much work earmarked for Ontario over the coming years, getting involved in projects related to these sectors can help set you up for a career full of successful projects and help you become one of Canada's leading M&E professionals.



  • Design, load calculation, technical specification for Plumbing, Sanitary System, Strom Water System, Natural Gas Piping, Fire Protection and Sprinkler systems, HVAC, and hydronic piping for transportation projects, majorly for GO Metrolinx and TTC;
  • Thorough knowledge of Design/Build (DB) or Design/Build/Finance/Maintenance (DBFM) type projects to lead the transportation projects from pursuit to construction. Transportation project to include but not limited to: above ground and below ground station design, platform design, airport terminals, subway design, LRT, Bus garage, and MSF facilities;
  • Preparing contract document and working with PM and other Sr. Engineers, as well as intermediate engineers, designers and modelers;
  • Thorough knowledge of plumbing system design, pipe sizing, sanitary and storm system design and pumping, natural gas PRS, dry and wet preaction sprinkler system and clean agent fire suppression system design;
  • Complete understanding of building mechanical engineering requirement, Ontario Building Code (OBC), ASHRAE, ASPE, NFPA, and CSA standards for building and site design. Familiar with GO Metrolinx DRM, PSOS, PA, and TTC design manual and specifications;
  • Perform individually or as a team member with under direct supervision of PM or group manager;
  • Extensive experience of project management, operation, finance, resourcing, and reporting to help the PM and operation manager.   
  • Other duties as assigned/required.


  • Bachelor’s or higher degree in Mechanical Engineering and registered P.Eng. with PEO; (EGBC, APEGA is a plus); with minimum 20 years’ of experience designing mechanical systems for transportation, commercial, and industrial projects including but not limited to: Sanitary, Storm, Potable Water, hydronic heating and cooling, hydronic snow melting and infloor heating, natural gas piping, compressed air, various sprinkler systems, clean agent fire suppression system, tunnel ventilation, and familiarity with BAS architecture from unit level to network;
  • Experience with utility companies, authorities having jurisdiction, applicable codes and standards such as OBC, IEEE, CSA, and OESC;
  • Strong verbal and written communication and interpersonal skill with team members and other disciplines. Detail oriented, organized, hard worker, and team player;
  • Strong Project Management skills, PMP is a plus;
  • Familiarity with software used for mechanical engineering such as HAP/Tracer, duct and pipe sizing, and equipment selection;  




Offers of employment for safety-sensitive positions involving fieldwork are contingent upon candidates being able to perform key physical tasks of the job as described in the job posting and interview. This may include the ability to 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. For more information please READ THE FULL POLICY.

WSP Canada Inc.


Markham, ON

Back Apply Now