After graduating from military high school in 1992, he joined Turkish Military Academy and graduated in 1996 as an infantry officer, as a second lieutenant, with a degree of BA in System Engineering. Then he accomplished one year long Infantry Officer Training Course and served as platoon and company commander in different units.
During 2017-2019 he was assigned as a Deputy Brigadier in a one of the biggest Brigade in Turkey at the Iraqi Border.
In addition to the field service, he worked at the NATO Center of Excellence Defence against Terrorism, located in Ankara, during the period of 2005-2009 and 2014-2017 as a Doctrine Officer, Concept Officer, Instructor and Course Director. He developed and organized different courses and high level international activities and gave lectures in the Center and in many different countries as a part of Mobile Training Team, and at the Turkish PfP Center.
When he was Captain he took part in United Nations Military Observer Mission in Georgia for 6 months as a team Leader in 2004.
During the period of 2011-2014, he was assigned to the mission called Untied States Security Coordinator (USSC) in Jerusalem, as Military Training Advisor. He was responsible for the Leadership Enhancement and Development (LEAD) program that provided young Palestinian Security Forces the fundamental skills of staff planning, management and small unit leadership.
He accomplished Army War College Staff Officer Education in 2019 and as academic work, he has MA in International Relations (2001) and PhD in International Security and Terrorism (2014). During his PhD study he was awarded scholarship from The Scientific and Technological Research Council of Turkey to do his research in Think-Tanks in Washington, Dc.
His last assignment was to the Ministry of Defence as the Plan, Coordination and Analysis Chief of the Media and Public Relations Department. And he was the spokesperson of the Ministry of Defence of the Republic of Turkey.
Colonel Olcay DENİZER was born in Germany, 1973. He is married to Çiğdem with one daughter. His hobbies include scuba diving, trekking, riding bicycle, LEGO and watching documentaries.