Mechanical Designer - WSP, Thornhill, ON

About the Role

As a Mechanical Designer with WSP's Property & Buildings team in Thornhill, ON, you will play a crucial role in the design and delivery of mechanical systems that support high-performing, sustainable buildings. This opportunity allows you to work closely with senior designers and engineers, contributing to a diverse portfolio of building projects. You will be instrumental in developing detailed models and drawings, coordinating with multidisciplinary teams, and supporting the technical delivery of mechanical building systems from concept through construction. This role helps shape how people live, work, and connect within communities.

Day-to-Day Responsibilities

• Prepare mechanical design drawings using AutoCAD and Revit
• Support senior designers and engineers in the development of complete drawing packages
• Design HVAC, plumbing, and fire-protection systems for building projects
• Perform heating, ventilation, and cooling load calculations
• Support engineering calculations using relevant design tools and software
• Coordinate with project teams, external vendors, architects, and engineers
• Support project delivery through accurate documentation and technical coordination
• Participate in occasional local travel based on project requirements

Requirements

To succeed as a Mechanical Designer at WSP, candidates should possess a strong foundation in mechanical system design and a collaborative spirit, ready to contribute to innovative building solutions.

• Diploma or certificate in Mechanical Engineering Technology or a related field
• 3–5 years of experience in BIM modelling and mechanical system design
• Strong working knowledge of AutoCAD and Revit
• Experience designing building mechanical systems (healthcare experience is an asset)
• Understanding of applicable building codes and standards
• Ability to work independently under general supervision while contributing effectively within a team environment
• Strong attention to detail, organization, and ability to manage multiple priorities

About the Company

WSP is a global leader in engineering, advisory, and science-based expertise, dedicated to shaping communities and advancing humanity. As Visioneers, WSP brings together brilliant minds – engineers, scientists, advisors, and technical experts – to redefine what’s possible and shape what comes next across various sectors, including buildings, infrastructure, and transportation. WSP's global minds unite to power local solutions, making a lasting, positive impact.

• Proudly Canadian – WSP is 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 – WSP helps you tailor your role to match your ambition, because your growth drives theirs.
• Flexible work, real balance – WSP recognizes the importance of balance in our lives and encourages you to prioritize the balance in yours.

At WSP, you’ll join a community that pushes 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. WSP empowers its people to collaborate across disciplines, challenge the status quo, and shape a career with purpose.