He is on the books of Unia Skierniewice and wears shirt number 28. His main role on the pitch is Midfield.

His latest transfer saw him join Unia Skierniewice from Ner Poddębice via on 2019-02-13.

Over 18 appearances in the Poland Liga 2 2025-2026, Mateusz stepien contributed 3 goals and 0 assists, completed 0 key passes from 0 total passes, and posted a passing accuracy of -.