McCrudden teaches in the areas of international, European, and comparative human rights at Michigan Law. He is the author, most recently, of Litigating Religions: An Essay on Human Rights, Courts, and Beliefs (Oxford University Press, 2018), about the relationship between religion and human rights law. An earlier book, Buying Social Justice (Oxford University Press, 2007), examined the relationship between public procurement and equality, for which he was awarded a certificate of merit by the American Society of International Law in 2008.
He has co-authored (with Brendan O'Leary) Courts and Consociations (Oxford University Press, 2013), about the tensions between human rights and ethnic power-sharing arrangements that are common in peace agreements. He also has edited the multi-disciplinary volume, Understanding Human Dignity (Oxford University Press, 2013).
In addition, he serves on the editorial boards of several journals, including the Oxford Journal of Legal Studies, the International Journal of Discrimination and the Law, and the Journal of International Economic Law.
He also serves on the European Commission's Expert Network on the Application of the Gender Equality Directives, and the Irish Department of Foreign Affairs Human Rights Advisory Panel. Queen's University Belfast awarded him an honorary LLD in 2006. He was elected a Fellow of the British Academy in 2008, and a member of the Royal Irish Academy in 2018. He is chair of the Advisory Committee of the Institute for Advanced Studies (the Wissenschaftskolleg) in Berlin.