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Darkened/stylized background image of construction workers cutting wood
Professional portrait of GLY employee Barrett Moulton.

Barrett Moulton

Yard Superintendent

Jackson Reid

Senior Project Engineer

Ben Hamm

Project Executive

David Craig

Senior Estimator

Tim Grant

Principal

Tyler Tonkin

President+CEO

Grace Kim

Design Engineer

Ruby Kahnberg

Project Engineer

Dwight Hansch Headshot

Dwight Hansch

Superintendent

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2026 GLY Construction, Inc.

Jackson Reid

Senior Project Engineer

LEED Green Associate

Jackson is a Senior Project Engineer best known for his natural sociability and ability to boost jobsite morale. He remains positive and resilient when faced with challenges and believes that division of labor does not mean a relief of responsibility. With a strong team–first mindset, he understands the collective effort required to deliver successful projects, which is why he enjoys starting his days early on the jobsite and staying engaged with his team throughout the day. Outside of work, Jackson is an energetic outdoorsman who spends his time in the mountains or on the water. He enjoys biking, hiking, surfing, snowboarding, skiing, running, and fishing, and is a former student–athlete who played lacrosse at the University of Washington and with Seattle–area teams. He is also an FAA–certified Unmanned Aircraft Pilot and enjoys flying his drone to capture aerial jobsite photos.

Ben Hamm

Project Executive

Assoc. DBIA™

Ben honed his exceptional leadership skills during his first calling as a high school English teacher, coach, and director of admissions. Patient, communicative, and adaptable to change, the AEC industry scored big when he decided to switch gears and earn another degree, this time in Civil Engineering. Progressing from Project Engineer to Project Executive at GLY, he continues to leverage his diverse background—listening intently to clients and teammates prior to making critical decisions. Hailing from Western New York, where cows outnumber residents, Ben remains a loyal Buffalo sports fan—Go Sabres and Bills!

David Craig

Senior Estimator

David is an experienced Senior Estimator with a demonstrated history of working in the construction industry. He offers expertise in Design Management, Facility Management (FM), Cost Engineering, Quantity Surveying, and Constructability. He has utilized his Bachelor’s Degree in Construction Management by becoming a strong community and social services professional who lives by the mantra: "Clarity...No surprises, just choices."

Tim Grant

Principal

P.E.

Tim spent the first part of his career as a professional structural engineer before arriving at GLY in 2011. He's since completed projects in an array of markets, from healthcare to hospitality, and a long list of high tech corporate campus facilities. On his current project, the University District Station Building, Tim and team are building a 13-story office tower atop Sound Transit's light rail station at NE 45th St and Brooklyn Ave. A former member of the UW track team, Tim traded in his running shoes for hiking boots, and enjoys exploring PNW trails with his wife and two sons.

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.

Grace Kim

Design Engineer

Grace approaches design with a big-picture perspective while ensuring constructability through careful attention to detail. Grace is passionate about the intersection of design and construction, continuously learning how each can strengthen the other to deliver quality outcomes. Outside of work, she enjoys yoga, walks around Green Lake, cheering on the Mariners [and Shohei Ohtani], and has even soared through the Austrian Alps and worked at the Space Needle during college.

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.

Dwight Hansch Headshot

Dwight Hansch

Superintendent