Prior to joining Altos, Kun was the Leo and Trude Szilard Chair Professor and Chairman of the Bioengineering Department at University of California, San Diego. His area of expertise is molecular engineering and biotechnology, with a specialization on genomics, epigenomics and single-cell sequencing. Kun pioneered the development of methods on target genome and epigenome sequencing, single cell genome sequencing, single-nucleus RNA sequencing, and single-cell multi-omics sequencing. He is applying these technologies to constructing single-cell atlases for major human organs. Kun has been a Web of Science highly cited researcher since 2019, and was elected Fellow of the American Institute for Medical and Biological Engineering in 2017 and of the International Academy of Medical and Biological Engineering in 2021.