Vryonis graduated from the University of Lancaster with a bachelor’s degree in Accounting and Finance and is a Fellow Certified Chartered Accountant (FCCA). He is a Member of the Chartered Institute for Securities & Investment (MCSI) and he is registered in the Public Register of CySEC for Certified Persons, having succeeded in the Advanced examinations.

He is also a member of the Certified Public Accountants of Cyprus (ICPAC) where he serves on the Shipping Committee and a member of the Legal and Finance Committee of the Cyprus Shipping Chamber (CSC).

He worked for Deloitte Cyprus between 2006 and 2011, involved in the audit of various public and private companies including offshore drilling, banking, financial services, investment and trading before joining Intership in 2011 Heading the Department of Accounting & Finance, where he is responsible for managing the Finance team as well as for various services relating to accounting, finance, treasury and reporting. During 2021, he has also been appointed as the Portfolio Manager of Pelagic Partners.