Barrett Moulton
Yard Superintendent
Logan Chun
Senior Preconstruction Engineer
LEED Green Associate, CESPL
Logan brings his personal obsession with timelines and coordination to his career in Preconstruction. He is a person who likes to take immediate action, because as he describes it: "In Preconstruction, success is built on momentum". To maintain this focus, Logan tracks three key wins in a daily journal–instilling the habit of keeping a project progressing and on track. This is an excellent tool for keeping him motivated and passionate, and he finds these "small wins" to be his favorite part about working in this industry. Weather permitting, you can find Logan enjoying his spare time outdoors, whether it's hiking excursions, camping, boating, soccer matches, fishing trips, or snowboarding.
Isaias Villa Galvan
Safety Director
CSP, CHST
Before entering construction safety, Isaias began his career as a wildland firefighter, where he developed a calm, confident approach to risk management. That experience made his transition into safety and construction management a natural progression. He has since proven himself a strong leader, capable of guiding teams of safety professionals and fostering a culture rooted in accountability and safe work practices, making him the perfect fit for Safety Director at GLY. Outside of work, Isaias stays active through Brazilian Jiu Jitsu, strength training, running, hiking, and golfing, and he enjoys spending downtime reading. Despite calling himself the world’s worst swimmer, swimming remains a favorite hobby [an unexpected passion that perfectly reflects his willingness to embrace any challenges he is faced with].
Jeff Crawford
Principal+Healthcare/Life Science
Jeff is a Principal at GLY and leads the firm’s healthcare and life science market sector. He specializes in alternative delivery models and brings strong expertise in preconstruction planning and estimating for everything from large hospital campus expansions to critical equipment replacement. With a BA in Architectural Studies from the University of Washington and nearly two decades at GLY, Jeff combines his design background with project management skills to guide teams on highly technical, complex facilities. Outside of work, he enjoys playing basketball, running, and hiking with his family.
Sarah Cunningham
General Foreman
As a General Foreman, Sarah is known for always thinking ahead and looking out for everyone’s best interest. She enjoys the camaraderie on the jobsite and the pride that comes from persevering and building something together. A recent project of Sarah's featured a major geothermal energy system, and she used that experience to teach others at GLY about geothermal energy and how different types of systems can be used. Her hobbies include hiking, cycling, gardening, and traveling the world every chance she gets. But her favorite thing? Golden Retrievers!
Tyler Tonkin
President+CEO
Since joining GLY in 1998, Tyler has played a pivotal role in shaping the company’s culture and project delivery excellence. Now serving as President and CEO, he brings a collaborative spirit, deep technical expertise, and a strategic mindset to every facet of the business. Tyler’s leadership has guided some of GLY’s most complex and transformative projects—from integrated hospital expansions to urban highrise developments. His commitment to client advocacy and team empowerment continues to inspire innovation and elevate performance across the organization.
Ruby Kahnberg
Project Engineer
Ruby brings a well-rounded perspective to her role as a Project Engineer, combining an academic background in architecture and construction management with hands-on experience working for electrical contractors. She is passionate about the built environment and values the balance between thoughtful design and practical constructability. Outside of work, she enjoys embroidering, thrifting, dancing, and sketching around the Seattle area – often finishing her drawings over a glass of wine.
Amereo Forks
General Foreman
As a decisive person with a positive and open-minded attitude, Amereo enjoys the everyday team collaboration. As a General Foreman, Amereo makes good job-site morale and cohesive team environment a priority. He finds joy in seeing the building team bring a client’s vision to life from start to finish. At home, Amereo enjoys tackling small projects and spending time with his family. Fun fact: Amereo is a twin!
Bill DeJarlais
Executive Vice President
LEED AP BD+C
As an Executive with a career spanning over 30 years across a wide spectrum of market sectors, Bill enjoys helping our highly capable builders lean into their relationships and take the responsibility needed to help our clients and partners succeed. Trained in architecture, he’s sustained an appreciation for design and has helped advance internal tools and technologies that help make GLY more proactive partners through every facet of a project’s life cycle. Today, Bill supports our Preconstruction + Estimating, VDC, and Marketing + Business Development teams and serves several community organizations focused on Education. He’s an avid cyclist, gardener, and family guy.