Szysky brings deep operational expertise and a people‑first leadership approach to the role. Most recently, she served as operations leader for Stantec’s North American Buildings business, where she strengthened business processes, advanced operational excellence, and supported sustained growth. She also played a key role in the successful acquisition and integration of Page, a 1,400‑person architecture and engineering firm, further reinforcing Stantec’s commitment to scale, collaboration, and design excellence.

Infrastructure is Stantec’s largest business in North America, accounting for 26 percent of regional revenue in 2025 and supported by nearly 4,800 professionals. The business spans a diverse portfolio across transportation and community development, including ports and marine, roadways and bridges, transit and rail, airports, residential and commercial development, and landscape architecture—delivering projects that connect communities and shape resilient, thriving places.

“Arliss brings a rare combination of operational rigor, strategic vision, and genuine care for people,” said Susan Reisbord, chief operating officer for North America. “She champions continuous improvement while creating the conditions for teams to do their best work. I’m looking forward to partnering closely with Arliss as we continue to grow our Infrastructure business and advance our corporate strategic plan.”

Leading growth and delivering complex projects
Szysky joined Stantec in 2004 as a transportation engineer, contributing to major public and private sector projects across Western Canada. She went on to lead the Alberta South region for six years, guiding a diverse, multidisciplinary team and driving strong performance through collaboration and technical excellence. Her time serving as executive sponsor for the BMO Convention Centre Expansion in Calgary reflects her commitment to trusted client relationships and delivery of complex, high-profile projects.

“It’s an incredibly exciting time for our Infrastructure business,” said Szysky. “We have powerful opportunities to collaborate across the Company, expand our transportation business, strengthen our community development work, and build on our experience delivering projects in some of the world’s most challenging environments, including the Arctic. I’m looking forward to continuing to evolve how we operate—creating a strong, future-ready platform that supports safe, efficient, and high-quality project delivery for our clients and our people.”

Szysky succeeds Susan Walter, who led the Infrastructure business through six years of sustained growth and two corporate strategic plans. Under Walter’s leadership, the business broadened its reach, successfully integrating Morrison Hershfield, and delivered signature projects including the Long Island Rail Road Expansion and the East Midtown Greenway. Walter will transition into a role focused on leading major projects, growing key client relationships, and mentoring the next generation of Stantec leaders.

Learn more about Transportation and Community Development at Stantec.

About Stantec
Stantec empowers clients, people, and communities to rise to the world’s greatest challenges at a time when the world faces more unprecedented concerns than ever before.

We are a global leader in sustainable engineering, architecture, and environmental consulting. ​Our professionals deliver the expertise, technology, and innovation communities need to manage aging infrastructure, demographic and population changes, the energy transition, and more. ​

Today’s communities transcend geographic borders. At Stantec, community means everyone with an interest in the work that we do—from our project teams and industry colleagues to our clients and the people our work impacts. The diverse perspectives of our partners and interested parties drive us to think beyond what’s previously been done on critical issues like climate change, digital transformation, and future-proofing our cities and infrastructure.  ​

We are designers, engineers, scientists, project managers, and strategic advisors. We innovate at the intersection of community, creativity, and client relationships to advance communities everywhere, so that together we can redefine what’s possible.​

Stantec trades on the TSX and the NYSE under the symbol STN.