Born in Tomsk, Russia, Gashchuk moved at early age to Bulgaria with his parents. He began his youth career at Ludogorets Razgrad, before moving to Cherno More Varna academy.[3][4] In 2021 he joined the newly formed Fratria, where his father is one of the founders and youth coach.[5] Year lated he joined Botev Plovdiv Academy, before returning to Fratria in 2023 and joining the first team.[6] He scored his debut goal for the team on 18 May 2023 in a league match against Riltsi Dobrich.[7] His fully professional[citation needed] debut was on 14 November 2024, in a Bulgarian cup match against Beroe Stara Zagora, where Fratria were eliminated on penalties.[8]
International career
Gashchuk hold both Russian and Bulgarian citizenship. In August 2021 he received a call up for Bulgaria U15 training camp.[9]