Nagasawa is Kingfisher College Chair of the Philosophy of Religion and Ethics at the University of Oklahoma.
[2] From 2004 to 2005 he was Izaak Walton Killam Memorial Postdoctoral Fellow in the Department of Philosophy at the University of Alberta, Canada and Research Fellow at the Centre for Applied Philosophy and Public Ethics at ANU.
[3] He was awarded the Philosophical Quarterly Essay Prize in 2007, the John Templeton Award for Theological Promise by the John Templeton Foundation and the University of Heidelberg in 2008, and the Excellence in Philosophy of Religion Prize by the University of St. Thomas in 2010.
[4] In 2018 he was appointed as the editor of Religious Studies published by Cambridge University Press.
Nagasawa's research interests include philosophy of religion (the existence of God, divine attributes, the problem of evil, science and religion), philosophy of mind (phenomenal consciousness, the mind-body problem, semantic externalism) and applied philosophy (medical ethics, the meaning of life, death and immortality).