Ato Tsega Teklyesus is a graduate of Addis Ababa University with B.A. Degree in Economics (1999) and MA in Economics from Indrai Ghandi National Open University. He has also taken different training.

Ato Tsega started his carrier in Commercial Bank of Ethiopia (CBE) and worked there for over six years as Loan Officer, Officer and Management Trainee in Project Finance Division and Branches. Then, he joined Bank of Abyssinia (BOA) in 2006 and served as Manager-Credit Monitoring Division, Head of Small & Medium Enterprise Division, Head of Economic Intelligence & Credit Information Division and Senior Credit Officer over four years. During his stay in BOA, he participated in various committees like NPL Alleviation Committee which brought significant changes in reducing NPLs rate and he was a Secretary of the Board of Directors Credit Committee.

Ato Tsega joined Addis International Bank S.C. in January 2011 from BOA.