Our people excel at building relationships

It takes more than steel and concrete to build an efficient structure. It takes people who have vision and fresh ideas. People who challenge the conventional, looking for more efficient, more cost-effective ways of doing things – instead of cookie cutter, off-the-shelf solutions. Understanding this, we use a collaborative, team-based approach, calling on the considerable talent, skill and specialized knowledge of each of our employees company-wide. This results in innovative, cost-effective structural solutions; solutions that often far surpass the expectations of our clients.

Our project teams are carefully selected, based on each individual’s unique level of expertise and experience as it relates to the specific challenges of each project. To ensure that the process is seamless for our clients, we maintain a constant eye on attention-to-detail and the bottom line. As a result, we enjoy a high volume of repeat business and referrals because our clients know that they can trust our people to always act in their best interests.

Jeff Stephenson, P. Eng. – Managing Principal

After graduating from Queen’s University in 1990, Jeff joined Stephenson Engineering Ltd. Jeff has been involved in a variety of projects large and small as well as concrete restoration projects. Some examples include 25 York Street The Telus Centre, City of Hamilton South Mountain Complex & Library for the YMCA, The Rose Theatre in Brampton, The Transamerica Tower at 5000 Yonge Street, Toronto, and Aerocentre Phase V, winner of the 2010 Ontario Concrete Award for Structural Design Innovation.

Jeff has also been involved garage restoration work such as 180 Dundas Street and North American Centre. In 1999, Jeff became a Principal at Stephenson Engineering and today he is Managing Principal.

Saundra Cullen, P. Eng. – Senior Principal

After graduation from the University of Waterloo, Saundra joined the firm in 1972. She has been a Principal with the firm since 1979. Saundra possesses a
“hands-on” management style that is evident in many of the firm’s major structural designs.

Some notable projects include The Four Seasons Hotel & Residence in Toronto, The William Osler Health Care Centre in Brampton and The North American Life Centre in Toronto. Saundra served two terms on the Council of Professional Engineers of Ontario and is a past member of the PEO Disciplinary and Complaints Committee. Saundra is also a LEED Certified Professional.

Zoran Tanasijevic, P. Eng – Senior Principal

Zoran Tanasijevic has recently joined Stephenson Engineering Ltd. as a Senior Principal. Zoran has over 20 years experience in structural engineering, designing and managing projects in all major sectors of development.

Zoran has worked on a wide variety of projects including data centres, airports, residential, commercial, and institutional buildings in Canada, the United Kingdom, the Middle East, Russia, North Africa and the United States. Prior to joining Stephenson Engineering, Zoran worked as Principal with Yolles Partnership, and with a construction engineering contractor in Malta, the Overseas Development Administration in the United Kingdom and several consulting engineers in Yugoslavia. During his work on Malta, Zoran attained extensive management, as well as technical knowledge, in the production and design of precast and prestressed elements. He is familiar with a number of International building codes and design standards, including the British and French standards.

During Zoran’s career, he has completed numerous award winning projects including the Lester B. Pearson New Terminal Building, which was awarded the Ready Mixed Concrete Association of Ontario’s Concrete Award for Cast-in-Place Concrete/Material Development & Innovation, 2001 and 2004, and the 2005 American Institute of Steel Construction of Ontario’s National IDEAS2 Award for Structural Steel in the Category for Projects $75M+.

He also completed Holborn Place in London, UK, awarded a Commendation by the British Council of Offices for the “Fit-out of Workplace” category, and The Gate, in Doha, Qatar, awarded the 2008 CNBC Arabian Property Award for the Best Development and High-Rise Architecture categories.

Mohsen Mansouri, P. Eng., LEED AP – Senior Principal

Mohsen Mansouri is a professional engineer with more than 25 years of experience. Mohsen has recently joined Stephenson Engineering as a Senior Principal and will head the new Building Science and Asset Management division. Prior to joining Stephenson, Mohsen worked for almost 11 years at Halcrow Yolles as a Senior Principal where he was the Head of the Concrete Restoration Department.  Before coming to Canada, Mohsen was involved in the design and construction of large civil engineering projects in Iran such as dams, silos, high rise and concrete structures. His first experience in Canada included managing the cost estimation of rehabilitation and restoration projects for two major contractors in Toronto.

Mohsen has been in charge of investigation, preparing of tender documents, tendering, construction review, and contract administration of many large projects in the Toronto area. He has been a Project Principal for different types of concrete restoration projects such as slab replacement, post tension repairs, concrete repairs, waterproofing, asphalt pavement and cathodic protection. His project experience includes buildings, bridges, parking garages, and parking lots.

Aron McCallum, P. Eng. – Principal

Aron joined Stephenson Engineering after graduating from the University of Waterloo in 1998. He became a Principal at Stephenson Engineering in 2006.

Aron has been the Principal/Project Engineer for many residential, commercial and institutional projects. He is Principal in Charge of all education facilities,
Fire Stations and EMS (Emergency Medical Services) projects. He is the Structural Consultant to the Heavy Urban Search and Rescue (HUSAR) Large Disaster Team.

Rob Popplewell, P. Eng. – Principal

A graduate of the University of Western Ontario in 1996, Rob joined the firm
in 1998.

Rob has been the Principal/Project Engineer for many of the firm’s office buildings, institutional and high rise residential buildings. Rob also manages the production of the project specifications.

Some notable examples are The William Osler Health Care Centre in Brampton, The Federal Express Airport Courier Facility at Lester B. Pearson Airport and Kingsway Financial Corporate Headquarters in Mississauga.

Rob has also conducted extensive peer reviews on behalf of clients.

Fisher Li – P. Eng., M. Eng. – Associate 

After graduation from South China University of Technology, Fisher joined the firm in 2003.

Fisher has been the design engineer for projects such as The Four Seasons Hotel & Residence in Toronto, Bellair Condominiums and Legacy Condominiums. Fisher is also highly involved with the design methodology and implementation within the office.

Fisher became an associate in 2009.

Peter Zeng – M. Eng. – Associate 

After graduating from Hohai University of China, Peter joined the firm in 2006.
Peter has been the design engineer for projects such as Gibson Square, 83 Redpath Avenue, Park Place, Metro Place I & II and 21 Grand Magazine Condominiums.

Peter became an associate in 2010.

Kathy Kajaks – CAD/BIM Manager – Associate 

After graduating from Centennial College with a Diploma in Architectural Technology in 1980, Kathy joined the firm in 1999

Kathy has been the Senior Structural Drafter for many projects including The Four Seasons Hotel & Residence in Toronto, 25 York Street – The Telus Centre, The Rose Theatre in Brampton, and Ultra Condominiums in Toronto, as well as a variety of commercial, residential and educational projects.

Kathy became an associate in 2011.

John P. Stephenson, P. Eng. – Founding Principal

Under John’s guidance the firm has become a successful and respected member of the Professional Engineering Community.

As company founder, John’s more that 40 years experience is manifest in every structural design prepared by our firm. With more than 6000 completed projects throughout Canada the United States, the Middle East and the Caribbean, John brings a unique depth of knowledge to all the work we do.

Graham Eaton, C.E.T. – Senior Consultant

His more than 50 years experience is “input” to all aspects of the company’s operations.

Graham joined Stephenson Engineering Ltd., in 1969 as a founding partner and vice-president. He now continues as Senior Consultant. From 1975 to 1978, he was partner in charge of a branch office in Abu Dhabi in the United Arab Emirates.

Ali Alizadeh, M.a.sC., P.Eng. – Associate

Ali Alizadeh has recently joined Stephenson Engineering as an Associate. He has more than 22 years experience in the design and contract administration of a wide variety of structures including hotels and condominiums, hospitals, schools, university buildings, arenas and sport complexes, performing arts centres, industrial facilities, and religious buildings.

Derek Tong, P.Eng, Leed AP - Associate

Derek Tong has ten years of consulting experience in the structural design of a variety of commercial, residential and transportation projects. He possesses technical expertise in the design of structural steel, concrete, composite construction, stainless steel, and masonry structures. Derek has strong management skills, effectively coordinating multiple projects and meeting deadlines.