Tracey Swirski

Senior Project Engineer

Associate DBIA™, LEED Green Associate

Tracey and her four siblings spent their childhood on the family’s 40-foot sailboat, fueling her adventurous nature and love of the outdoors. While still in her teens, she completed a two-year building trades course through the North Olympic Peninsula Skills Center, a hands-on experience that led her to pursue a BS in Construction Management from Washington State University. Tracey is a member of GLY’s Microsoft special projects team, where she appreciates working at all scales of a project. She is a graduate of the Young Executive Program through the Bellevue Chamber of Commerce.

Dan Frye

Layout Superintendent

Dan is GLY’s go-to guy for anything and everything relating to site surveys and layout. As a consummate team player and expert on layout technology, Dan is responsible for not only planning and coordinating project needs with superintendents, but also for training and educating the GLY Layout Crew and helping The Yard with long range equipment planning. When he’s not out in the field, Dan is 100% family man, spending as much time with his wife and kids as he can.

Cassie Withrow

Executive Administrator

Excellent customer service comes naturally to Cassie, who approaches every task with a can-do attitude. As Executive Administrator, she enjoys working with people that encourage her and test her limits but allow her to have fun along the way. She manages her time—and many others’—with extraordinary ease and keeps things running like a well-oiled machine. Outside the office, you’ll find Cassie hiking, exploring the city, and when the sun comes out, boating on Lake Washington—all with her husband and pups by her side.

Andrea Miller

Project Manager

Andrea earned a BS in Mechanical Engineering from Drexel University in Philadelphia, Pennsylvania before heading west. Prior to joining GLY in 2020, she spent 12 years managing projects for Seattle’s leading healthcare providers, which continues to be her focus. A strong dedication to understanding client goals is paramount in Andrea’s approach to her role; this approach is what makes Andrea well-known for her time management, integrity, and discipline—qualities she also brings home with her as she coaches CrossFit and raises two busy children.

René Gutierrez

Project Engineer

LEED Green Associate

René’s background in construction management and architecture provide her with a fluency in both languages, adding value to each of her projects through this diverse perspective and the ability to see the bigger picture. She is highly detail-oriented, an eager learner, and always emphasizes the importance of staying in close communication. After work, you can find René hiking, painting or drawing, or playing softball and flag football.

Tyler Tonkin

Principal+Executive Vice President

Tyler’s collaborative approach to problem solving and strong technical abilities have helped him successfully lead some of GLY’s most complex and challenging projects. From delivering fully integrated hospital expansions in occupied campus settings to redeveloping a waterfront building into a high-tech research facility with vibration isolation technology, Tyler is driven to chart a course for the team to meet the challenges inherent to the built environment. As both a Principal and member of GLY’s Executive Team, Tyler has built a reputation as a committed client advocate and enthusiastic leader who brings out the best in our teams.

Bryan Haakenson

Principal+Senior Project Manager

LEED Green Associate

A Northwest native who embodies every aspect of GLY’s collaborative, community-centered approach, Bryan provides leadership on projects in the heart of thriving residential, educational, and corporate campuses that are fully occupied during construction. His unique skills, personality, and temperament make him ideally suited to work within occupied settings to safely and expediently deliver new construction nestled in with renovated spaces. When he’s not building with Legos under his two young sons’ supervision, you can find him chasing a black and white ball around a field.

Dave McGovern