Professor Tillman is a member of the law faculty at the National University of Ireland Maynooth (NUIM). He clerked for Judge Mark E. Fuller (U.S. District Court for the Middle District of Alabama), Judge William J. Martini (U.S. District Court for the District of New Jersey), Judge Jane R. Roth (U.S Court of Appeals for the Third Circuit), and for Magistrate Judge Malachy E. Mannion (U.S. District Court for the Middle District of Pennsylvania). He has also been an adjunct professor at Rutgers University School of Law (Newark), where he taught Constitutional Law, legal writing, and equity.
Professor Tillman has a B.A. in Economics from the University of Chicago and a J.D. from Harvard Law School.