John Siouras

John Siouras is an experienced Senior Account Manager with over 23 years in the field, currently employed at Cosmos Business Systems since January 2013. Prior to this role, John held similar positions at Syscom S.A and Cosmos Business Systems, demonstrating a strong proficiency in account management. Earlier career experience includes working as an Account Manager at PC Systems and serving as a Retail Store Manager at NTAKOS SA. John Siouras possesses a background in Computer Science and Engineering, having studied at Southeastern College and Control Data.