In March 2016, he made his senior debut for the Ukraine national team.

He made his debut for the main FC Zorya team as a substitute in the second half in a match against Shakhtar Donetsk in the Ukrainian Premier League on 2 October 2011.

On 9 July 2018, Petryak moved to the Hungarian club Ferencvárosi TC.

In July 2019 Petryak moved to the Hungarian club Fehérvár FC.

This biographical article related to a Ukrainian association football midfielder born in the 1990s is a stub.