Senior Mechanical Engineer (Plant Design)

With an unmatched breadth and depth of engineering, advisory and science‑based expertise, our global minds unite to power local solutions. As a Senior Mechanical Engineer within our Mine Process & Mine Infrastructure group, you will shape the systems and infrastructure that power Canada’s most complex industrial and mining environments. From optimizing process plant layouts to advancing mechanical excellence on major brownfield and greenfield programs, your expertise will directly influence safe, sustainable, and high‑performing operations across Canada and internationally.

Lead mechanical engineering for industrial and mining plant facilities, including material handling systems, pumping systems, piping networks, and equipment layouts. Deliver and review high‑quality engineering outputs—calculations, specifications, datasheets, technical reports, and drawing packages. Steward technical integration across process, structural, electrical, and civil discipline teams to ensure cohesive project execution.

Mentor and guide intermediate and junior engineers and designers, fostering technical growth and excellence. Partner with clients, vendors, and contractors to support equipment selection, procurement, constructability planning, and commissioning success. Conduct and participate in design reviews, HAZOPs, field engineering assessments, and constructability evaluations.

Champion compliance with industry codes, standards, and WSP quality systems. Contribute to proposal development, scope definition, and identification of engineering risks and opportunities.



Bachelor’s degree in Mechanical Engineering and active 10–15 years of progressive experience with a solid focus on industrial or mining plant design.

Expertise in process plants, mine infrastructure, material handling systems, plant layouts, and rotating/static equipment. Proven ability to lead mechanical design independently while providing technical leadership in multidisciplinary teams. Comfort working closely with clients in dynamic, fast‑paced project environments.

We exist to shape communities to advance humanity. The brightest engineers, advisors and scientists from across the globe call WSP home. A global community of brilliant minds – 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 – NB, NL, NS, PEI & QC: $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. 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. 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.

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. 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.

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.

📌 Senior Mechanical Engineer (Plant Design) (Mississauga)
🏢 WSP
📍 Mississauga