Panagiotis Giannoulatos holds an undergraduate degree from the Department of Classical Literature of the National and Kapodistrian University of Athens and a Master of Arts in Ancient History and Classics from Royal Holloway, University of London. He also received training in the International Baccalaureate Middle Years Programme.

He initially worked in private secondary schools and joined the faculty of the Hellenic-American Educational Foundation in 2004.  From 2006 to 2011, he was the Head of the Greek Language Department of Psychico College Junior High – High Schools.  From 2011 to 2017, he was Deputy Director of Psychico College Junior High School, whilst from 2015 through 2019, the year in which the School was certified as an IB MYP World School, he was the International Baccalaureate Middle Years Programme Coordinator. In September 2017, Mr. Giannoulatos was appointed Director of Psychico College Junior High School, a position he held until his appointment in 2020 as Director of Psychico College High School. In September 2021 he was also appointed Coordinator of Psychico College and in September 2024, he was appointed Co-Director of Psychico College.