After studying in Vienna, he has been employed at theDepartment of Prehistoric and Early Mediaeval Archaeology, University of Vienna since 1993. He is the director of the aerial archive founded by Friesinger at this department and has 15 years of experience in archaeological remote sensing. He is specialized in aerial archaeology, ALS, photogrammetry, surveying and GIS and has an international reputation as a committee member of the Aerial Archaeology Research Group, and as Vice-President of the ICOMOS & ISPRS committee for the Documentation of Cultural Heritage (CIPA). He wrote his postdoctoral lecture qualification (Habilitation) on landscape archaeology. Since 2011 he has been Professor at the Department for Prehistoric and Early Mediaeval Archaeology of the University Vienna. He is deputy director of the Ludwig Boltzmann Institute for Archaeological Prospection and Virtual Archaeology.