Our Team
Professional Engineers
Eric Dube, P.E. ,Principal
Eric Dube has over 30 years of experience in both Civil and Structural Engineering Design since graduating from Wentworth Institute of Technology. Eric’s open communication style is paramount to the success of not only each project but also to the company as a whole. His unusual ability to perform both Civil and Structural Engineering Design proves to be an invaluable resource for Trillium Engineering Group and clients. This unique attribute enables him to manage a project from its conception through site design and into the structural contract drawing phase and construction administration.
phone: 207-712-7022
email: ericd@trilliumeg.com
LinkedIn: Eric Dube, Trillium Engineering Group
Tony Dumais, P.E. , Principal
Tony has over 15 years of experience in structural engineering since graduating from the University of Maine. He has worked on a wide variety of projects throughout the Northeast and has design experience with most structural materials. His attention to detail, efficiency and innovative solutions combine to help teams stay on budget while also meeting project goals. His background includes complex steel and timber frame structures as well as cast-in-place concrete and CMU design. When not in the office, he enjoys spending time with his family and friends outdoors.
phone: 207-227-3479
email: tonyd@trilliumeg.com
LinkedIn: Tony Dumais, Trillium Engineering Group
Dianne Nay
Office Manager
Dianne Nay happily joined Trillium Engineering Group as the office manager; a position she has held in various firms over a span of more than 20 years. She is responsible for keeping the office running smoothly and overseeing administrative and HR activities. Dianne comes from a culinary background and loves being creative in the kitchen, trying new dishes, and using her brood as taste-testers. Dianne enjoys gardening and always looks forward to summertime to spend time with her husband on their boat with friends and family.
email: diannen@trilliumeg.com
Shelly Colvin
Surveying Assistant
Shelly Colvin is a retired nurse who joined Trillium Engineering Group as a Surveying Assistant at the end of 2021. She is a valuable part of our Survey Team and loves the outdoor life. She enjoys camping, skiing, and wielding a fishing pole. Spending time with her young grandchildren is one of her favorite activities, punctuation on active!
Christopher Dornbach
Design Engineer
Chris Dornbach comes to Trillium Engineering Group with a diverse background. Prior to working in the design world Chris was a Journeyman level Power Plant Operator and Mechanic in the United States Air Force and served as a Mobility and Combat Instructor. After his service he received his degree in Architectural design from the University of Maine at Augusta. Chris has worked professionally both as an Architectural and Structural Designer with over 10 years of combined experience. His distinct history gives Chris both a deeper appreciation and sensitivity for the projects he works on as well as an emphasis for working as a cohesive team.
email: chrisd@trilliumeg.com
Ed Ledoux, P.E.
Project Manager
Ed has over 8 years of structural design experience in the commercial, aviation, sports, and medical markets, having primarily focused on steel and concrete structures prior to joining Trillium. He has since expanded his experience to include the residential market and wood framed structures. An alumnus of Tufts University and UC San Diego, he prides himself in developing clear and concise drawings, and appreciates the importance of coordinating with both the design and construction teams to complete projects. After hours he enjoys hiking, camping, and playing bass and guitar.
email: edl@trilliumeg.com
Arthur Colvin, P.E. / P.L.S.
Project Manager
Arthur has over 25 years of experience as a professional engineer and land surveyor. He has experience with boundary and topographic surveying, land development, stormwater and drainage design, as well as local and regulatory site approvals. His vast knowledge of both site design and land surveying combine to make him a valuable asset to Trillium Engineering Group and our clients. When not in the office, he enjoys time on his boat.
email: artc@trilliumeg.com
Chandler Waldron
Design Engineer
Chandler joined Trillium Engineering Group after graduating from Roger Williams University in December of 2021 with a Bachelor of Science in Civil Engineering. Previously, Chandler had worked for Trillium Engineering Group as a summer intern, and then part-time as he completed his last semester of school remotely. He has proven to be a fine asset to the team, quickly learning several programs and working efficiently. Chandler focuses on structural engineering and works primarily on various residential and commercial structures. In his free time, Chandler enjoys skiing and boating with his family and friends.
email: chandlerw@trilliumeg.com
Zach Pacheco, P.E.
Senior Project Engineer
Zach graduated from the University of Maine with a BS in Civil Engineering. With over 8 years of experience, Zach has been a valuable team member on a variety of projects within the commercial, residential, higher education, and aviation markets. He has extensive knowledge of structural design and 3D modeling and involvement with a range of structural materials including wood, steel, and concrete. His past role as a BIM manager allowed him to enhance his ability to produce clear and concise engineering drawings with a focus on constructability. In his free time, Zach enjoys being with his family and playing disc golf.
email: zachp@trilliumeg.com
Nathaniel Eames
Design Engineer
Nathaniel (Nat) Eames graduated from Worcester Polytechnic Institute in Worcester, Massachusetts with a BS in Civil Engineering in 2013, continuing on to earn his MS in Civil Engineering in 2016. Nat wore several different hats before joining Trillium Engineering Group. He brings his experience with Building Envelope Design, Estimating, Project Management, and Municipal Permitting to our team. His current focus is Structural Engineering in both the residential and commercial markets. Outside of work, he spends his time mountain biking, disc golfing, and kayaking.
email: nate@trilliumeg.com