His work primarily focuses on preparing future and current principal and superintendents to lead effective schools and transform public education. In addition to supporting charter schools and authorizers through data analysis and reporting systems, his research includes leadership preparation practices, school reform and choice, charter school performance, and the overall culture and climate of the educational environment. Prior to his work as a professor, Dr. Jankens served in various charter school roles, including teacher, principal, superintendent, and Assistant Director for the Governor John Engler Center for Charter Schools. He is also a board member at Renaissance Charter School Academy in Mt. Pleasant, Michigan.