Born in Jaslo as the oldest of two children, Piątkowski moved to Zagłębie Lubin when he was attending high school.

[4] During the 2024–25 UEFA Champions League play-off round on 21 August 2024, he scored a header for Red Bull Salzburg in a 2–0 victory against Dynamo Kyiv.

[4] He joined Spanish La Liga club Granada CF on a six-month loan in January 2024.

[7] On 28 March 2021, Piątkowski debuted for the Polish senior squad in a World Cup qualification against Andorra.

The goal came just after the hour mark, when Piotr Zieliński set him up for a powerful strike from outside the box that found the top corner of the net, leveling the score at 1–1.