Giles is next to his position as Science Officer, a Postdoctoral Fellow at The University of Tokyo. He obtained a bachelor's degree in landscape from University College Ghent and master's degree in urban design and spatial planning from KU Leuven Luca-Arts before obtaining his Ph.D. in Sustainability Science at The University of Tokyo. He developed design concepts and academic papers within the fields of sustainability science, urban engineering, ecosystem services, and public health. He received professional training by international design companies (Turenscape, B2Ai) and organizations (UN-Habitat). Before joining Future Earth, Giles worked as a project researcher at The Graduate School of Frontier Sciences of The University of Tokyo on applying sustainability science concepts using a systems approach in the fields of urban planning and public health.