For 23 years, Machtan has researched German history, politics and socioeconomic. He currently is an associate professor at Bremen University in Germany. His internationally published books, reviews and essays include "Bismarck's Death and Germany's Tears: Report of a Tragedy" and "Courage to Have Morals: From the Private Correspondence of Social Reformer Theodor Lohman." He has been featured in newspapers and magazines such as Der Speigel, radio broadcasts, international conferences and symposiums
