As a second-year student at the National Academy of Dramatic Art, Liss made his professional stage debut in the play
Boże mój, directed by
Andrzej Seweryn, at the in 2019. The following year, he played Dawid in the anthology film
Erotica 2022. In 2021, he starred as Paweł in the
Netflix supernatural thriller television series
Open Your Eyes. In 2024, he played Adolf in the play '
, directed by Krystyna Janda, at the Arnold Szyfman Polish Theatre in Warsaw. The following year, he played Robert in the film ', directed by Tadeusz Śliwa. At the
2026 Series Mania, he won the award for Best Actor for his role as Filip in the
HBO Max television series ''''. ==Personal life==