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Our People

Spread across over 60 cities, our team is a global collective of urban experts in design, architecture, engineering, civil, transportation, urban geography, real estate, landscape, communications, software development and so much more. These are the people defining the cities of tomorrow.

Supporting our global team of 3,500 difference makers is IBI’s Leadership team, setting out a compelling vision and guiding IBI Group towards the future.

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Demetrius Yannoulopoulos

Director | Office Lead
Ottawa, ON

Demetrius Yannoulopoulos
#Director | Office Lead# #All# #Civil Engineering# #Civil Infrastructure# ## #Civil Infrastructure# #Development Engineering# #Engineering# #Leader# #Municipal Infrastructure# #Civil Infrastructure# ## #Office Lead# #Water / Wastewater# #Industrial# ##
Ottawa, Ontario, Canada
https://www.linkedin.com/in/demetrius-yannoulopoulos-83277286
Demetrius Yannoulopoulos is a Professional Engineer in Ontario with over 30 years of experience in civil engineering in both Land Development and Municipal Engineering. He is currently Project Director for a number of land development engineering studies and detail design projects, all based out of the Ottawa office. His Municipal Engineering experience includes design of road and infrastructure renewal projects in both Ottawa and Kingston. He has served as Municipal Engineer for various smaller municipalities reviewing development plans and providing general engineering advice to councils. public sector projects include infrastructure renewal for DND, and Correctional Services Canada. In addition to the various projects Demetrius has completed over the years, he has also assisted the civil engineering field in both the public and private realms by sitting on various engineering committees and serving on the executive of the Kingston Home Builders Association.
#North America#
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Warren Mack

Associate Director | Practice Lead, Architecture
Toronto, ON

Warren Mack
#Associate Director | Practice Lead, Architecture# #All# #Architecture# #Civic & Government# #Institution# ## #Community / Recreational Facilities# #Institution# #Civic & Government# ## #Courts# #Institution# #Civic & Government# ## #Design Build# #Detention Facilities# #Institution# #Civic & Government# ## #Education# #School# ## #Entertainment Centre# #Commercial# ## #Green# #Healthcare# #Heritage / Historic Preservation# #High Rise Residential# #Residential# ## #Higher Education# #School# #Education# ## #Hospitality# #Commercial# ## #Hotels & Resorts# #Commercial# #Hospitality# ## #K-12 Education# #School# #Education# ## #Labs / Life Sciences# #Healthcare# ## #Leader# #Library# #Institution# #Civic & Government# ## #Living+# #Residential# ## #Low Rise Residential# #Residential# ## #Mixed Use# #Commercial# ## #Mobility Hub# #Transportation# ## #Office# #Commercial# ## #Police Stations# #Institution# #Civic & Government# #Police & Fire Stations# ## #Residential# #Retail# #Commercial# ## #Spiritual Places# #Institution# #Civic & Government# #Church# ## #Stadium / Athletic Facilities# #Institution# #Civic & Government# ## #Subject Matter Expert#
Toronto, Ontario, Canada
Warren has over 25 years of progressive international experience in the design, planning, and construction of diverse project typologies and scale. He has worked amongst award winning global firms and interdisciplinary teams on multi-billion-dollar masterplans, high-rise office and residential towers, hospitality projects, educational and corporate campuses, mixed-use developments, and sustainable initiatives. Specific areas of expertise are in establishing high-level conceptual thinking and problem solving towards project vision, liaising with clients and stakeholders, team leadership, and effective project delivery of detailed design solutions. Warren is a strong believer in design as a communicative process, building upon narratives that lead to lasting relationships and successful projects by means of amassing and testing the diverse ideas and expertise of all team members involved. Having joined IBI in 2018, Warren’s role was in providing support for the management and growth of the high-rise residential design team while leading several files within the GTA and Montreal concurrently. Having since branched out to lend his expertise towards the growth of the US Building Sector, he has been directing design on a broader range of project designations and P3 pursuits. In addition to his project commitments, he has been instrumental in the evolution of the IBI Design Excellence Committee, intended to showcase the value of design and the collective talents within the firm by promoting innovative thinking, mentoring, integration of technology formats, project reviews, award selections and submissions for publication. Warren has a keen sensibility for detail and craft, cultivated through his extensive hands-on experience of innovative structural solutions in wood framing, as illustrated in his designs of private houses and children’s camps while in Partnership within his former practice. He is an honours graduate of Carleton University in Ottawa, a registered Architect and LEED Accredited Professional, as well as an abstract artist, having shown his work across Canada, Europe, and the US.
#North America#
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Terry Ruszczak

Associate Director | Practice Lead, Contract Administration
Toronto, ON

Terry Ruszczak
#Associate Director | Practice Lead, Contract Administration# #All# #Architecture# #High Rise Residential# #Residential# ## #Living+# #Residential# ## #Mixed Use# #Commercial# ## #Project / Programme Management# #Residential#
Toronto, Ontario, Canada
Terry Ruszczak is a dedicated, results-oriented, energetic and creative Architectural Technologist, with 35 years of experience in contract administration/field inspection, with an emphasis on project management and leadership. He directs the drafting team for working drawings, tendering, shop drawing review and monitored/inspected the project on-site as liaison between the client, consultants and contractors. He is commended for his communication with multiple stakeholders in the implementation of designs into construction documents. Comprehensive knowledge of building science principles, construction methods and techniques and his understanding of zoning by-laws allow for Terry’s unique and creative ability to execute accurate working drawings for building permit application and construction maintaining the highest levels of Life Safety.
#North America#
Visit Terry Ruszczak's ProfileVisit Jay Deshmukh's Profile
Jay Deshmukh

Associate | Manager, Architecture
Toronto, ON

Jay Deshmukh
#Associate | Manager, Architecture# #All# #Architecture# #Civic & Government# #Institution# ## #Education# #School# ## #Healthcare# #Interiors# #Interior Design# ## #Learning+# #School# #Education# ## #Master Planning# #Placemaking# #Planning & Urban Design# ## #Planning & Urban Design# #Placemaking# ## #Strategic Planning#
Toronto, Ontario, North America
https://www.linkedin.com/in/jayashri-jay-deshmukh-41aa1a4/
At a time when educational institutions are transforming in response to rapid socioeconomic change, design retains the powerful potential to shape campus environments that spark curiosity, enable innovation, build partnerships and foster lifelong learning.
An award-winning architect with over 20 years of experience, Jay is a recognized thought leader in institutional architecture of varied scales and typologies, in Canada and overseas.  She leads the design, strategic thinking and planning for education projects, and engages meaningfully with clients and stakeholders to define and implement the strategic vision of the project through place-centric design.  She is deeply engaged in the arts and design community in Toronto, as a member of the Board of Trustees at the Textile Museum of Canada, and as a frequent guest critic and lecturer at design schools. Presently, she is working effectively from home, leading the design of an integrated health sciences faculty with 5 schools, 26 user groups, and a large multidisciplinary team of professionals. 
#North America#
Visit Bruce W Retzsch's Profile
Bruce W Retzsch

Associate Director-Principal | Architecture
Boca Raton, FL

Bruce W Retzsch
#Associate Director-Principal | Architecture# #All# #Architecture# #Commercial# #Industrial# #Infill Development# #Land Use Planning# #Placemaking# #Planning & Urban Design# ## #Leader# #Manufacturing# #Industrial# ## #Master Planning# #Placemaking# #Planning & Urban Design# ## #Mid Rise Residential# #Residential# ## #Mixed Use# #Commercial# ## #Planning & Urban Design# #Placemaking# ##
Boca Raton, Florida, United States of America
https://www.linkedin.com/in/bruce-retzsch-1917166/
Bruce Retzsch established the firm of RLC Architects in Boca Raton, Florida, serving as its managing principal and principal urban designer for more than 30 years until being acquired by IBI Group in 2022. The firm is recognized for superior architectural design and planning services in the multi-family, mixed-use, retail, office and distribution/logistics markets in South Florida, and is the recipient of numerous AIA design awards. Mr. Retzsch is an active member of AIA, serving as the 2022 Palm Beach AIA president and recipient of the component’s 2018 Gold Medal. He is also involved in many industry organizations, including ULI, NAIOP and CIASF, and volunteer activities with the City of Boca Raton, Boca Raton Community Church, and the National MS Society. A graduate of the University of Illinois, Bruce holds a Bachelor of Science in Architectural Studies and a Master of Architecture in Urban Design.
#North America# #Southeast#
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Tom Shannon

Associate | Manager, Intelligent Systems
Toronto, ON

Tom Shannon
#Associate | Manager, Intelligent Systems# #Advanced Traffic Management System# #Transportation# #ATMS# ## #Airports# #Transportation# ## #All# #Operations Centre# #Transportation# ## #Project / Programme Management# #Software as a Service# #SaaS# ## #Systems# #Systems Integration# #Systems# ## #Traveller Information# #Transportation# #511# #ATIS# #Advanced Traveller Information System# ##
Toronto, Ontario, Canada
https://www.linkedin.com/in/tom-shannon-09a88012/
Tom Shannon has 20+ years of experience in the field of systems integration and deployment for public and private sector clients. He has enhanced his technical background in electrical engineering with a Masters of Business Administration and PMP certification. For the past nine years, Tom has been working with the Ministry of Works and Transport in Trinidad as the Project Manager for the successful deployments of the National Traffic Management System, Red Light and Speed Enforcement systems. He recently concluded an assignment as the Project Manager for the Ground Transportation AVI System for the Hillsboro County Aviation Authority at the Tampa Airport. This system monitors and tracks commercial vehicles and assesses fees based on the vehicle and type of trip. Past assignments include work for Federal (NPS, FHWA), State (CT, NY) and local levels of government.
#North America#
Graham Harris

Director
London, UK

Graham Harris
#Director# #All# #Architecture# #Education# #School# ## #Healthcare+# #Healthcare# ## #Leader# #Living+# #Residential# ## #Office Lead# #P3# #Project / Programme Management# #Public Outreach# #UK Regional#
London, United Kingdom,
Graham Harris is an experienced architect and project director and has taken an active involvement in driving IBI Group’s design processes, ensuring heightened standards in architectural output and efficient working methods, including BIM & 3D Visualisation. Skilled at delivering all aspects of a project, he is particularly strong at executing innovative stakeholder consultation processes. He places collaborative working as the focus of his leadership, winning awards for outstanding team delivery and high client satisfaction. In healthcare, he works alongside clients to transform their ‘model of care’ into an efficient and therapeutic healing environment, ensuing overall cost savings and improving service delivery. Graham is highly competent at meeting the design challenges posed by complex refurbishment works within a live hospital environment. His experience includes the development of complicated phasing plans to meet both clinical and construction requirements. With a rich background in healthcare design, Graham is very aware of Trust requirements, ensuring solutions address future flexibility, energy efficiency and most importantly reduced infection rates by introducing innovations such as the IBI Group ‘cruciform ward’. In education, Graham has been exposed to a number of Government initiatives, including Building Schools for the Future and the Primary Capital programme. He has hands-on experience of the tight parameters specified by these schemes, responding with holistic solutions to safeguard design quality and exceed clients’ ‘value for money’ expectations.
#United Kingdom#
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Anna Mori

Associate | Manager, Transportation Engineering
Toronto, ON

Anna Mori
#Associate | Manager, Transportation Engineering# #All# #Data Analytics# #Engineering# #Planning & Urban Design# #Placemaking# ## #Policy & Design Guidelines# #Subject Matter Expert# #Traffic Engineering# #Transportation# #Traffic Management# ## #Transportation Planning# #Transportation# ##
Toronto, Ontario, Canada
Anna Mori has spent her entire 20-year transportation planning career with IBI Group. Anna specializes in transportation data collection and analysis, as well as geographic information systems/mapping/visualization of travel patterns and trends. She has managed several large-scale travel origin-destination surveys for commercial vehicles, passenger vehicles and transit, through which she has gained rich insights into travel behaviour. She has also been responsible for a variety of studies in support of transportation planning activities and transportation policy development. Signature projects include the Ontario Commercial Vehicle Survey and the multi-faceted Northern Ontario Multimodal Transportation Strategy for the Ministry of Transportation, Ontario. She is currently developing highway rest areas guidance for Northern Ontario and is the technical lead on a Road Rationalization Study for the County of Essex. Anna has a Bachelor of Civil Engineering and Society from McMaster University, and a Master of Applied Science in Civil Engineering (Transportation) from the University of Toronto.
#North America#
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Jonathan Darton

Director | Sr. Practice Lead, System Engineering
Calgary, AB

Jonathan Darton
#Director | Sr. Practice Lead, System Engineering# #All# #Data Analytics# #Information & Communications Technology# #ICT# ## #Leader# #Mobility Hub# #Transportation# ## #Mobility+# #Transportation# ## #Multi-Modal Transportation# #Transportation# ## #Operations# #Operations Centre# #Transportation# ## #Project / Programme Management# #Public Outreach# #Research & Development# #Revenue / Tolling# #Transportation# ## #Software as a Service# #SaaS# ## #Strategic Planning# #Subject Matter Expert# #Systems# #Systems Engineering# #Systems# ## #Systems Integration# #Systems# ## #Traffic Engineering# #Transportation# #Traffic Management# ## #Traffic Management# #Transportation# ## #Transportation# #Transportation Engineering# #Transportation# ## #TravelIQ# #Transportation# #511# #ATIS# #Advanced Traveller Information System# ## #Traveller Information# #Transportation# #511# #ATIS# #Advanced Traveller Information System# ##
Calgary, Alberta, Canada
https://www.linkedin.com/in/jonathan-darton/
Jonathan Darton BCOMM, ISP, ITCP has 15 years of experience in the areas of Intelligent System design, development, and implementation. Jonathan has been actively engaged with stakeholders for many ITS, TMC and systems related projects including ATMS, ATIS, Data Acquisition, and Data Warehousing systems. Jonathan manages the Canada West Intelligent Systems Solutions team which provides service to clients throughout Canada and internationally. He holds the Information System Professional (ISP) and ITCP designations from Canada?s Institute of Information Technology Professionals and is currently serving as Co-chair of the ITS Canada ATMS Technical Committee.
#North America#
Visit Jonathan Darton's ProfileVisit Charles Stokes's Profile
Charles Stokes

Studio Director
London, UK

Charles Stokes
#Studio Director# #Acute Care# #Healthcare# ## #All# #Architecture# #Healthcare# #Master Planning# #Placemaking# #Planning & Urban Design# ## #Pediatrics# #Healthcare# ## #Project / Programme Management#
London, United Kingdom, United Kingdom
https://www.linkedin.com/in/charles-stokes-b291b726/
There is nothing more rewarding than knowing that your designs have made a difference - however small. Having been lucky enough to work on significant projects designed specifically for children (from birth to adulthood) improving those patient’s journeys has been an amazing experience.
Charles first joined IBI in 1997 working in the London office. Moving to Belfast in 2011, he re-joined the company in 2022 with a desire to broaden his experience of quality design projects outside of Northern Ireland in the context of a changing climate. Healthcare is his focus, where having been involved in new build projects at Great Ormond Street, he then led the design and delivery of the Ulster Maternity Hospital and Women & Children’s Projects in Belfast. He is a proactive and highly motivated architect with a wide range of experience in design and construction. Charles has specialised in the management, design and co-ordination of complex projects at various stages within the design process. Charles is a talented designer, who has worked in partnership with several universities and is acutely aware of the benefits good design can bring to our clients.
#United Kingdom#
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Erin King

Associate | Manager, Intelligent Transportation Systems
Seattle, WA

Erin King
#Associate | Manager, Intelligent Transportation Systems# #All# #Bus Rapid Transit# #Transportation# #BRT# ## #Policy & Design Guidelines# #Project / Programme Management# #Smart Cities# #Strategic Planning# #Systems Engineering# #Systems# ## #Transit Planning# #Transportation# ## #Transit Technology# #Transportation# #ITS# #Intelligent Transportation Systems# ##
Seattle, Washington, United States of America
https://www.linkedin.com/in/erinsking/
Erin is a strategic planning and smart cities specialist working to transform cities and communities to become more livable through the effective application of technology, with a particular focus on the health, welfare, and success of people in those communities. She has spent the last 10 years as a technology analyst, strategic planner, and project manager working with cities, regions, and transportation and transit agencies planning for, designing, implementing and deploying technology solutions, with an emphasis on mobility. Her focus has been on solving our clients’ problems through communication, collaboration, and critical thinking. Erin is also a leader within our Smart Cities practice working with smart mobility engineers, urban planners, and software developers to identify, pursue, and implement smart projects throughout North America. Erin’s smart mobility experience includes both management and strategic planning roles in the development of advanced transportation technologies and solutions that cover all modes.
#North America# #Pacific West#
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Jeffrey Mok

Associate | Manager, Architecture
Vancouver, BC

Jeffrey Mok
#Associate | Manager, Architecture# #All# #Architecture# #High Rise Residential# #Residential# ## #Living+# #Residential# ## #Mixed Use# #Commercial# ## #Residential#
Vancouver, British Columbia, Canada
Jeffrey Mok is an award-winning senior designer with over 30 years of experience designing and managing architectural projects. Jeffrey also specializes in multimedia projects and computer graphics. He has produced a variety of videos and interactive projects in conjunction with his architectural design work.
#North America#
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