We examine whether working conditions in charter schools and traditional public schools lead to different levels of job satisfaction among teachers. We distinguish among charter schools managed by for-profit education management organizations (EMOs) and non-profit charter management organizations (CMOs) and stand-alone charter schools. We investigate our research question using data from the School and Staffing Survey. We find that teachers in charter schools are less satisfied with their jobs than teachers in traditional public schools. We also find that teachers in EMO-managed schools appear less satisfied than those in stand-alone charter schools. Our analyses suggest that lower salaries and limited union memberships help drive these lower levels of satisfaction, particularly among stand-alone charter schools and charter schools managed by EMOs.