Greg Killen is an experienced structural engineer practicing since 1993.  Most of his work has involved projects where sensitive architectural planning is required. His experience in this field has led him to manage broader engineering teams and to collaborate effectively with others to seek out the best design outcomes.

In Brisbane his credits include playing a significant role in some of the city's better known architectural icons including Brisbane International Airport Terminal, Queen Street Mall Central Structure, Suncorp Stadium, and the heritage-listed Refinery Apartments at Cutter’s Landing.  Greg was the Design Manager for Brisbane's most recent pedestrian bridge, the Kurilpa Bridge, which became the first Queensland project in history to be recognised with a World Architecture Award in 2011.

Beyond Brisbane, Greg was the structural engineer for the Qantas Founder’s Outback Museum at Longreach and also the Resource Centre at the University of Queensland’s Ipswich Campus, which won a National Timber Structures Award in 2004.

Greg has also worked extensively as a structural engineer in London, Hong Kong and most recently in Singapore where Greg was Design Manager for the world's first double helix bridge, which is constructed almost entirely from stainless steel.

In addition to his own professional work, Greg has maintained involvement in the development of future designers, engineers and architects in a variety of ways including holding teaching positions in Civil Engineering and Architecture at the University of Queensland.