Professor Fried has taught at the University of Chicago, Boston University, California State University Los Angeles, and Suffolk University. He teaches and publishes in political philosophy, with a particular interest in responses to challenges to liberal democracy and the rise of ethno-nationalism. He also works in philosophy of law, especially law and hermeneutics; philosophy and race; practical ethics, including just war theory; public philosophy; the history of ethics; Ancient philosophy; and 20th century Continental philosophy, especially Heidegger.