Seyit Mehmet Yaydemir was born in Kayseri in 1978. He graduated from Dokuz Eylül University, Department of Business Administration in 2002. Having embarked on his banking career as an Assistant Inspector in 2006 at Halk Bankası A.Ş., Yaydemir then served as Inspector, Senior Inspector, Branch Manager and Department Head, respectively. Yaydemir has been serving as the Acting Deputy General Manager in charge of Loan policies, Monitoring and Specialized Loans since October 7, 2025.