He graduated from Ankara University, Faculty of Theology. In 2001, he completed his PhD in the Department of Philosophy at Ankara University, Institute of Social Sciences. He worked at Kyrgyzstan OŞ State University between 2002-2003. He became an associate professor in 2009. In 2014, he was appointed as a Professor of Philosophy at Hitit University, Department of Philosophy. Since 2023, he has been working at TOBB ETU, Faculty of Arts and Sciences, Department of History. As an expert on terrorism and radicalization, he worked for 3 years in the Department of Counter-Terrorism on an official duty. He has articles on radicalism, Salafism, sectarian conflicts and ISIS in national and international arenas. An expert on radicalization, Salafism and Islamic movements, Demir served as the Regional Studies Program Advisor at the Economic Policy Research Foundation of Turkey (TEPAV). Demir is the Director of the Middle East and Central Asia Studies Institute (TEPAV OAS), which was established within TEPAV in 2020. He is also the president of the International Observatory on Radicalism, founded in 2024.