Nursezil Küçük Koçak graduated from Istanbul University, Department of Economics in English in 2002 and completed the Master of Business Administration program for executives at Koç University. Nursezil Küçük Koçak started her professional career at Yapı Kredi in 2003 and worked as Credit Underwriting Specialist until 2012. Nursezil Küçük Koçak served as the Corporate Credit Underwriting Manager and Commercial Credit Underwriting Region Manager between 2012 and 2014, Following this position, she served as Commercial Credit Region Underwriting Vice President, Commercial Credit Underwriting Vice President, Specialized Credits and Corporate Credits Underwriting Vice President respectively. Nursezil Küçük Koçak, who has been serving as the Corporate and Commercial Credit Underwriting Executive Vice President since August 2020, was appointed as the Credits Assistant General Manager on July 24, 2024.