Donnelly is a LEED™ certified senior engineer in
the Washington office of the architecture and engineering firm Hayes, Seay,
Mattern & Mattern, an AECOM Company. He has more than 40 years design
experience, having overseen the design of more than 30 million sq ft of office
and computer space in his career. Visit the Hayes, Seay, Mattern
& Mattern website at www.hsmm.com.
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