According to the standards association, Hahm has been recognized for his contributions to the success of the committee and his expertise on buried bridges.
He has worked with Contech Engineered Solutions since 2019, and his work includes the design of structural plate buried bridge structures and working with engineers, owners, and contractors on development of buried bridge projects.
He is also a member of American Railway Engineering and Maintenance of Way Association, Short Span Steel Bridge Alliance, Transportation Research Board, and the National Corrugated Steel Pipe Association.