Alexander Loy is Associate Professor at the Department of Microbiology and Ecosystem Science (University of Vienna, Austria), managing director of the Austrian Microbiome Initiative (AMICI), and faculty member of the Austrian Polar Research Institute (APRI). He received his PhD in Microbiology at the Technical University of Munich in Germany. In 2003, he received a Marie Curie postdoctoral fellowship to join the newly founded Department of Microbial Ecology at the University of Vienna in Austria. He established his own research group in 2006 based on third-party grants and was Assistant Professor from 2009 to 2013. He obtained his Habilitation (venia docendi) and the Young Scientist Award of the City of Vienna in 2012. His research focuses on evolution and ecology of sulfur microorganisms, on the function of the human and animal microbiota, and on the development of molecular and isotope-labeling methods for studying uncultivated microorganisms in their natural environment.