Since 2011 Maple Engineering has provided PME design services in the Triangle and throughout the Southeast. We have a growing list of relationships with area contractors, vendors, architects, and code enforcement personnel. Our team of engineers and designers has a wide range of experience and looks forward to the opportunity to assist you with your next project.


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Zack L. Tomlin, PE

Zack is a graduate of NC State University and a North Carolina native.  He has been around the construction industry all his life as the son of a contractor and a childhood watcher of “This Old House.”  After graduating from NC State, Zack worked for multiple PME firms in the RDU area before joining Maple Engineering in 2011. Zack is a licensed engineer in several states and holds an NCEES record. 

Dustin M. Metayer, PE

After graduating from the University of New Hampshire, Dustin moved to NC in search of opportunity and warmer weather. Since joining Maple Engineering, Dustin has earned his NC PE license and enjoys designing projects that impact his local surroundings.  Away from the office, he spends much of his time outdoors, and can be found biking around the trails of Raleigh.

Kevin A. Sweeney, PE

Kevin began his work at Maple Engineering as a part-time designer during his final semester at NC State. After graduating with a BS in Mechanical Engineering in 2015, Kevin became a full-time employee of Maple focusing on mechanical design and has since earned his NC PE license. Outside of the office Kevin frequents local music venues, enjoys travelling to places far away, and over-analyzes the performance of the Carolina Hurricanes.

Robert S. Alfaro
Project Manager

Rob joined the Maple team at the end of 2012 and has worked his way up from CAD technician, to PME designer and finally to Project Manager.  Outside of work Rob enjoys spending time with his wife and two daughters. He also enjoys working on, detailing and racing his car, PC gaming, and reading a good book.  

Richard D. Groat, III
Project Manager

Richard moved from the Detroit suburbs to study Engineering Design at NC State University. Following his appreciation of programs such as AutoCad and Revit, he joined Maple in 2013. Now an AutoCad Certified Professional, he focuses his attention on various trades specializing in Plumbing. When he is not managing projects, you can find him at local car shows and the occasional dog park with his husky Luna.

Dana W. Beasley, EI
Project Manager

Originally from Minnesota, Dana moved to North Carolina after completing a degree in Mechanical Design Technology. After 8 years as a draftsman for a PME firm in Wilmington, NC, Dana moved to Raleigh to finish his engineering degree at North Carolina State University. Since joining Maple Engineering, Dana has completed his degree and is working towards his PE license. Dana enjoys trips to the beach and mountains and spending time with friends and family.