At MMY, we’re friendly, creative structural engineers with personality and a sense of humor. Sound like an oxymoron? Well, it’s not. Our professional, fun culture puts you at ease, brings out the best in our staff, and gives you the innovative, sound, safe design solutions you need and want—quickly and affordably.
Send an email or print a resume (PDF) for our team listed on this page.
David H. Macdonald, P.E., Principal
David has over 30 years of experience in structural engineering which includes all phases and types of structural building systems and is one of the Principals of Mattson Macdonald Young. He has served as project engineer for several projects that have won awards for unique and innovative design.
Stephanie J. Young, P.E., Principal
Stephanie has over 25 years experience in the design, analysis, and construction coordination of many types of structures. Her major strengths include a proficiency at problem solving, an orientation toward detail and an understanding of construction concerns. She became a shareholder in 1998 and is now President of the firm.
Joseph Cain, P.E., Partner
Ken Green, P.E., Partner
Ken has been in the structural engineering field since 1989; joined MMY in 2006; and became partner in 2012. He’s developed a specialty of light-guage framing and curtainwall system design and public art projects—designing structures in stainless steel, aluminum, fiberglass, and composite wood-fiberglass materials.
David Hedberg, P.E., Partner
David started his engineering career in 2013 and later joined Mattson Macdonald Young in 2017. He has worked on a wide variety of projects, from brand new buildings to renovations of existing structures.
Isaac Bliek, Engineer in Training
Isaac joined MMY full-time in summer 2019 after spending the previous two summers as an intern. He is gaining valuable experience through traditional projects, and appreciates unique, atypical projects that foster creative thinking.
Matthew Hogen, P.E., Design Engineer
Jordan Hurst, P.E., Design Engineer
Jordan has been with MMY since 2016, and has experience in single and multi-family residential, commercial, and historic buildings. He strives toward becoming a more well-rounded engineer through projects that vary in material and clientele alike.
Adam Neigebauer, P.E., Design Engineer
Adam joined us in 2014 and brings unique experience to our group, including condition and façade studies, materials specifications, and engineering forensics. He has since expanded his skillset into designing building structures and homes. With a curiosity for tools and materials, he is a craftsman at heart, and designs things he can envision putting together himself.
Geoffrey Gonzalez, Engineer in Training
Geoffrey started at MMY in spring 2021 after moving to Minnesota from the east coast. He brings experience in traditional projects like single and multi-family residential, commercial, and educational buildings. Geoff also has experience in specialty work with cold-formed steel and aluminum structures.
Melissa Breiter, Engineering Technician
Melissa joined MMY in 2006 as an Engineering Technician. Melissa uses both AutoCAD and Revit Structure to create 2D plans and 3D models. She enjoys the wide variety of projects we work on at MMY, including everything from sculptures and park shelters to barns, houses, apartments, offices, and large warehouses.
Melissa Daluge, Engineering Technician
Melissa has been in the fields of architectural and structural drafting since 2000. Since joining MMY in 2001 as an Engineering Technician, Melissa has been involved in a wide variety of projects, from the Higher Ground Shelter in Minneapolis to Roseville’s Sienna Green Apartments and Maple Grove’s Hennepin County Library.
Sunny Xiong, Engineering Technician
Sunny is MMY’s newest team member and we are thrilled to have him aboard!
Jennifer Miggler, Office Manager
Jen has overseen the in’s and out’s of MMY since early 2017. She manages billing, payroll, accounts, and all other pertinent duties to keeping our office running smoothly. Simply put: we’d be lost without her.