John Schimke
Director of Field Operations
Maintaining a personal philosophy centered on family and teamwork, John has skillfully delivered many high technology projects in his 30+ years in the construction industry. Having spent the majority of his career at GLY, he has led all operational aspects of a project from preconstruction planning through finished product. A mentor to our superintendents and crew supervisors, and creative problem-solver, John continues to infuse his projects with the highest and most innovative level of service.
Steven Li
Senior Estimator
With a 30+ year career in the construction industry, Steven is an Experienced Senior Estimator known for his expertise in Value Engineering, Integrated Project Delivery, Project Engineering, CPM Scheduling, and Constructability. Holding a Master of Engineering in Construction Management and Management Information Systems from the University of British Columbia, as well as an MBA from the University of Singapore and a Bachelor's degree in Building Construction from Shanghai Jiaotong University, Steven brings a wealth of global knowledge to every project. Outside of work, Steven is passionate about staying active and enjoys hiking, jogging, cycling, and other outdoor activities. He’s also training in Filipino martial arts, focusing on Arnis, and is preparing for his black belt test — a journey that combines physical skill with cultural heritage. He is dedicated to promoting human health and wellness, with a personal interest in biology and neuroscience, particularly in areas like weight management and mental well-being. A Seattle resident for over 22 years, Steven roots for the Seattle Seahawks and cherishes time with his wife and teenage daughter.
Sean Royal
Project Engineer
Sean recently joined GLY after completing two internships which gave him firsthand experience on high-stakes projects in the construction industry. With a degree in Construction Engineering Technology, he brings a solid foundation of technical knowledge and hands-on experience to his role as Project Engineer. In this capacity, he handles key responsibilities in trade management, overseeing work scopes, ensuring quality and safety compliance, and supporting project scheduling and budgeting. A Kirkland native, Sean enjoys spending his free time on Lake Washington, hitting the golf course, or experimenting with new recipes in the kitchen.
Dennis Sizemore
Cement Mason Superintendent
Dennis is the go-to guy on anything and everything concrete. At age 15, he poured and finished driveways, patios, and shop slabs. When he started at GLY at 18, he was the youngest journeyman in his union. Today, he's a concrete master who oversees projects up to one million square feet. His favorite aspect of the job is the constant change of scenery since he's not on one single project for an extensive amount of time. While concrete is a big part of Dennis’s life, he makes plenty of room for his kids, fishing, hiking, and visiting Kauai, his happy place.
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.
Joe Sahlin
Superintendent
Joe embodies a team player, believing that “a successful project is not achieved by a sole individual.” He consistently acts as the glue that adheres the various entities coordinating a project to one another, supporting the successful delivery of a high-quality product. Joe’s perspective that client expectations are a baseline to surpass, is a product of his competitive spirit.
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."
