Mackenzie draws strength from the diverse talents and specialties of our staff. Click on the photos to get to know the members of our integrated team. Looking for a particular person, capability, or job function? Use the filter options or search field below.


We live in a new normal. Federal resources are increasingly scarce. Innovative project delivery with well integrated systems and a high return on investment is critical. Mackenzie's integrative blend of in-house design disciplines with specialized areas of expertise allows us to calibrate our efforts in real time, resulting in higher value at completion and through the lifetime of the facility. Jeff Humphreys leads Mackenzie's work in this market sector.

Peter Alto
Associate Principal, Architect

A graduate of the University of Oregon, Peter Alto has more than three decades of architectural experience. Peter manages the majority of...Learn More

Ryan Baker
  • PE
Structural Engineering
Senior Associate, Structural Engineering

Ryan Baker provides the structural design for a variety of project types, with an emphasis on industrial and federal facilities. He has served as...Learn More

Michael Chen
  • LEED Green Associate
Land Use Planning
Associate Principal, Land Use Planning

Michael Chen brings expertise in land-use planning, SEPA review, permit entitlement, feasibility studies, project management, and business...Learn More

Kim Doyle
  • NCIDQ #18363
Senior Associate, Interiors

Kim Doyle is an integral part of Mackenzie’s interior design team, and brings experience in both public and private sector projects. Kim offers...Learn More

Josh McDowell
  • SE
  • PE
Structural Engineering

Josh McDowell leads Mackenzie's structural engineering practice, and has over two decades of experience in the field. Josh oversees the structural...Learn More

Dale Poppe
Senior Associate, Architecture

Dale Poppe joined Mackenzie in 1994 after graduating from Washington State University with a Bachelor of Architecture. Since that time, he has...Learn More