Vasilli Billis performs the function of Chief Executive Officer at SYSTEMS SUNLIGHT S.A., a company of Olympia Group. He was until recently responsible for the development of all mobile telecom subsidiaries of Olympia Development abroad (PLAY in Poland and MTN in Cyprus), while he had previously worked in prestigious companies such as Germanos S.A., UNILEVER etc. He still serves as a Director or/and Member of the Board of several Companies such as Olympia Group., PLAY, and in the past MTN Cyprus LTD and GTI.  He has a Masters Degree of Electrical Engineering from the University of Southampton in England and an MBA from INSEAD.