He was born in Stockholm, Sweden in 1988. He received his BFA from the Emily Carr University of Art and Design in 2010, and subsequently received his MFA in Painting from the San Francisco Art Institute in 2012. Jefferies has shown in Israel, San Francisco, Oakland, Berkeley, and Vancouver. In October of 2013 he founded Field Contemporary, a gallery in Vancouver, B.C., with a focus to exhibit the work of local and international emerging artists.