Demetrio has been involved sequentially with agronomy, natural resource conservation, GIS, and remote sensing for about five decades. He is multiple times re-certified as a GISP (GIS Certification Institute) and as Certified Mapping Scientist -- GIS/LIS, remote sensing, and lidar (American Society for Photogrammetry and Remote Sensing). He is a formerly Certified GEOINT Professional (GIS) (USGIF). Demetrio’s career in Kentucky state government spanned almost 30 years, acting first as soil scientist, and later as GIS specialist for several agencies. Currently, an independent scholar and consultant, Demetrio holds a PhD in Soil Science with a minor in Plant Physiology and is an Adjunct Assistant Professor at the University of Kentucky College of Agriculture, Food, and the Environment; he is also a Visiting Lecturer at Kentucky State University and contributes his time to the National Geospatial Technology Center of Excellence (GeoTech Center). He has served as Director of the Kentucky Association of Mapping Professionals (KAMP), Past President of the Mid-South Region of the American Society for Photogrammetry and Remote Sensing (ASPRS) and is currently Chair of the Regional Officers Council of ASPRS, serving on the Society’s Board of Directors. He is currently 2024 Chair-Elect of COGO and contributes regularly to the GIS Pro Conference Committee of URISA. Demetrio has received numerous awards from KAMP, is a Fellow of the Soil and Water Conservation Society, written book reviews for JPERS and has authored or co-authored a few articles and monographs as well.