His interests lie at the intersection of heat and mass transfer, optics, and nanomaterials. He is focused on addressing global challenges at the energy-water nexus by bridging the gap between system level design and mesoscale materials science. He completed his PhD in Mechanical Engineering at MIT in 2014, under the supervision of Evelyn Wang. He was then a postdoctoral fellow at the University of Michigan, working with the Nanoscale Transport Lab (Pramod Reddy and Edgar Meyhofer) and the Center for Photonic and Multiscale Nanomaterials. Andrej is a former fellow of the MIT Energy Initiative and the Martin Family Society of Fellows for Sustainability. In 2016, he was named to the Forbes 30 under 30 list in Science.