Stefan Radev was born on September 6, 1972 in the City of Sliven. He completed his secondary education at Foreign Languages School “Zahari Stoyanov”. In 1995 he graduated from the University of Economics – Varna with a degree in “Economics and Management of Industry”. He has a master’s degree in „Accounting and Control” from the University of National and World Economy – Sofia. Since 2010 he is a certified public accountant. For more than ten years he was the executive and financial director of a large company. Until taking office as mayor of Sliven, he worked in the financial field as an auditor.