Sacha is the Program Director for the Environment, Doris Duke Foundation, where he leads all environmental efforts and grantmaking. Sacha has held roles as Research Associate, American Museum of Natural History and Adjunct Assistant Professor, Columbia University, Department of Ecology, Evolution and Environmental Biology. He has written many scientific and popular articles on invertebrate conservation and worked with the International Union for Conservation of Nature as the Terrestrial Invertebrate and Scarab Beetle Red List Authority.