A product of the Dynamo Kyiv academy, Kostyshyn joined Dnipro in August 2014.

[1] He made his professional debut for Dnipro on 30 April 2017, in a Ukrainian Premier League match against FC Volyn Lutsk.

[2] On 5 December 2022, it was announced that Kostyshyn would join USL Championship side El Paso Locomotive for their 2023 season.

On 1 November 2023, it was announced that he would be departing El Paso ahead of the 2024 season.

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