He is a specialist in numerical groundwater models. Author of many computer models, including Visual MODFLOW, Flowpath, Flonet and others. Master in Hydrology and Hydraulics from the University of São Paulo and PhD in Hydrogeology from the University of Waterloo, Canada. He served as a consultant on numerous projects, applying mining models, water resource management, environmental impacts and remediation. He is a recognized instructor, having taught more than 100 professional courses in various parts of the world. He is currently a managing partner at Water Services and Technologies and professor of undergraduate and graduate courses at the Federal University of Santa Catarina.