Judge Jojo Liu joined the Salt Lake City Justice Court in June 2022. Mayor Erin Mendenhall appointed her. Before that, she led the Salt Lake County Office of Criminal Justice Initiatives. She also worked with the Salt Lake County Criminal Justice Advisory Council (CJAC). From 2007 to 2015, she taught law at Loyola Law School in Los Angeles. She also co-led the Juvenile Justice Clinic.

Judge Liu is part of the Utah State Bar Access to Justice Commission. She helped start the First Star Foster Youth Academy at the University of Utah. She earned her college degree from Harvard and her law degree from Columbia.