The Subsurface Environmental Processes Group (Eawag and ETH Zurich) and the Environmental Microfluidics Group (Department of Civil, Environmental and Geomatic Engineering at ETH Zurich) are seeking two dynamic and motivated doctoral students to study microbial ecology in soil. The positions are funded by two recently awarded grants, an EU - Innovative Training Network (ITN) Grant (CoPerMix) and an ETH Research Grant.