Senior Mechanical Engineer, Mission Critical Buildings

Job Description What if you could redefine what's possible? With us, you can. You want Purpose. Growth. Opportunity. People who get it. We are the home of ambitious, passionate, and innovative world shapers. With an unmatched breadth and depth of engineering, advisory and science-based expertise, our global minds unite to power local solutions. We are pathfinders and impact makers. We are Visioneers. We are WSP The Opportunity Design What Comes Next Shape resilient, scalable, maintainable, and energy-efficient mechanical infrastructure for mission critical and data center facilities across Canada. In this senior technical leadership role, you will guide multidisciplinary teams, partner directly with clients, and advance cooling solutions for enterprise, colocation, hyperscale, AI, cloud, and high-performance computing environments. Your Impact You will lead mechanical design and technical delivery for complex mission critical facilities, helping clients achieve reliable operations, efficient performance, and capacity for future growth: Lead the planning, design, and delivery of mechanical systems for enterprise, colocation, hyperscale, AI, cloud, and high-performance computing data centers. Develop chilled water, pumping, heat rejection, air-cooled, and liquid-cooled solutions that support reliability, redundancy, maintainability, and operational continuity. Integrate high-density cooling technologies, including direct-to-chip cooling, immersion cooling, rear-door heat exchangers, and coolant distribution units. Perform and review thermal calculations, load assessments, cooling capacity studies, energy analyses, CFD studies, and airflow optimization strategies. Coordinate mechanical design with electrical, structural, civil, controls, telecommunications, commissioning, and architectural disciplines. Prepare and review basis-of-design reports, specifications, technical studies, calculations, and construction documents that enable confident project decisions. Guide site visits, construction administration, commissioning, integrated systems testing, and operational readiness activities. Mentor engineers and designers, strengthen client relationships, and contribute to proposals, strategic pursuits, and practice growth. The Skills That Set You Apart Bachelor's degree in Mechanical Engineering and a Professional Engineer (P.Eng.) designation. More than 10 years of progressive mechanical engineering experience, including mission critical facilities, data centers, healthcare, industrial, advanced technology, or other complex infrastructure. Demonstrated expertise in chilled water systems, cooling plants, pumping systems, heat rejection equipment, and air- and liquid-cooled data center architectures. Experience with enterprise, colocation, hyperscale, AI, cloud, or high-performance computing projects, including Tier III or Tier IV facilities. Knowledge of direct-to-chip cooling, immersion cooling, coolant distribution units, rear-door heat exchangers, CFD analysis, and thermal optimization. Experience coordinating multidisciplinary teams and working directly with clients, contractors, utilities, vendors, and commissioning personnel. Ability to balance technical excellence, project execution, client expectations, and commercial objectives while providing clear technical guidance. Readiness to participate in site visits, commissioning, integrated systems testing, operational readiness reviews, and construction administration. Why Choose WSP? We exist to shape communities to advance humanity. The brightest engineers, advisors and scientists from across the globe call WSP home. Proudly Canadian – we are 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. 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 – we recognize the importance of balance in our lives and encourage you to prioritize the balance in yours. #WeAreWSP Compensation: AB, BC, NT, NU, SK & YT: $104,100–138,000 MB & ON: $95,000–130,800 NB, NL, NS, PE & QC: $94,100–124,900 Disclosure: 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. Ready to Shape the Future? Bring your mission critical expertise to WSP and help design the resilient cooling infrastructure behind the next generation of data centers. Apply today to lead complex work, grow trusted client partnerships, and shape facilities built for performance, continuity, and what comes next. About Us At 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. We are Visioneers. 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. At 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. We empower our people to collaborate across disciplines, challenge the status quo, and shape a career with purpose. Join us. Please Note: Health and Safety is a core paramount value of WSP. 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. Full details here . 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. Only the candidates selected will be contacted. WSP does not accept unsolicited resumes from agencies. Full details here .