"When space constraints, physics, and building design combine to create a seemingly unsolvable problem, that’s when our engineers get excited."

David Leiffer

P.E., P.Eng., LEED AP

Director of Mechanical Engineering

David brings over 20 years of experience to overseeing all aspects of mechanical and plumbing design for single-site projects and large national programs alike.

One of David’s greatest qualities is his ability to exceed client expectations. If you ask him what his favorite part of the job is, he’ll tell you it’s mentoring his staff and providing them the tools to grow (his father is an engineering professor, so the apple didn't fall far from the tree). David is based in Northwest Arkansas, where he enjoys fishing, hiking, and camping with his family.


John Brown University | Bachelor of Science, Mechanical Concentration


Licensed Professional Engineer in 46 States, the District of Columbia, and 3 Canadian Provinces

LEED Accredited Professional

National Council of Examiners for Engineering and Surveying

American Society of Heating, Refrigeration, and Air-Conditioning Engineers