Since 2023, Myzgin has served as the head of the Laboratory of Eastern European Archaeology at the University of Warsaw.
[1][2] Myzgin completed his Master of Arts in history in 2005 at the V. N. Karazin Kharkiv National University.
In 2010 he received his doctorate from the V. N. Karazin Kharkiv National University with his thesis on "Ancient coins on the sites of the Chernyakhiv Culture" (Russian Античные монеты на памятниках черняховской культуры).
[3] In 2023, he was awarded his habilitation at the University of Warsaw with the thesis "Eastern Barbaricum between the Roman and the Migration Periods in the light of numismatic sources" (Polish Wschodnie Barbaricum na przełomie okresu rzymskiego i Wędrówek Ludów w świetle źródeł numizmatycznych).
He has been working there since 2015 and has been an associate professor at the Department of Numismatics and Museology at the University of Warsaw since 2021.