Stelios was born in Athens, Greece in 1994. He was a member of the Hellenic Basketball teams of U16 and U18. He played basketball and studied with a full basketball scholarship in NCAA I and NCAA II programs, University of Nevada,Reno and Southeastern Oklahoma State University. He is a current professional basketball player and has played for several teams in A2 and Second Division of Greece (Ethnikos Piraeus, Filathlitikos, Esperos Kallitheas and Melissia). He is getting his BSc Hons in Business Administration with specialization in Sports Management from DEREE – The American College of Greece. He became a part of the academy in September of 2016.