Troy Alexander
Project Executive
LEED AP
Troy’s been managing construction projects in the Pacific Northwest since 2000 and is one of our Interiors + Special Projects [ISP] team leaders. He specializes in unique renovation and improvement work in a variety of market sectors and has a long history of successfully delivering public agency projects using Job Order Contracting [JOC]. Troy enjoys collaborating with professionals of various disciplines to get fast-track projects started and completed on time. Outside of work, Troy enjoys lots of family time, good music, trying a new local beer, and cheering on his favorite sports team.
Brad Hughes
Senior Project Engineer
PE
Brad is a licensed Civil Engineer with a BSCE from Gonzaga University, but after a few years working in that discipline in Denver, he returned to the PNW to earn a Construction Management certificate from the University of Washington and joined GLY in 2008. His technical engineering skills continue to serve him well in his role as a Senior Project Engineer. He excels in coordinating structural work and large tenant build-outs for healthcare, residential, hospitality, and office high-rise projects. Brad and his family spend their leisure time exploring the world and tackling daunting athletic challenges.
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.
Steven Siler
General Foreman
Steven is a detail-oriented professional known for his resourcefulness, problem-solving abilities, and strong communication across diverse teams. With experience leading work, maintaining schedules, and overseeing quality assurance, he brings a well-rounded, hands-on approach to every project. Steven’s career began with lutherie—the art of crafting stringed instruments—which sparked his passion for woodworking and led him to run a custom cabinet business in Arizona for over a decade. After relocating to the Seattle area, he joined the Carpenters Union in 2016 and continues to build a career grounded in craftsmanship and service. Outside of work, Steven is an accomplished musician who plays drums for the Seahawks [while playing a wide variety of other instruments at home as well] and has traveled to over 24 countries.
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.
Tess Wakasugi-Don
Principal
LEED AP
Tess has built her career at GLY, from humble beginnings as an intern, advancing steadily to a promotion in 2019 to firm principal. She is a dedicated, selfless leader who pays careful attention to every project’s specific vision, technical complexities, and goals. Tess is very effective at coordinating the efforts of design professionals, construction teams, corporate stakeholders, and owners while integrating various service providers into project delivery. She chairs GLY’s internal DEI committee, which focuses on social equity education, employee engagement, and strategies to improve diversity and inclusion on GLY’s projects. Her three young sons inspire her daily to feel empowered, to work hard, and to make time for fun.
Kevin Eng
Chief Estimator
LEED AP BD+C, Associate DBIA™
Kevin praises the aspect of GLY’s culture that provides a variety of paths for diverse abilities and personalities to flourish. Hired on as a Project Engineer, his exceptional preconstruction planning and cost estimating talent quickly developed. As our Chief Estimator, he provides 24 years of building experience and practical knowledge of construction methods, materials, resources and LEED criteria. A generous mentor and creative thinker, Kevin gets involved to guide and directly support estimating efforts on varied and complex projects at GLY.