Jan has been involved in legal practice since his studies, when he completed professional internships at the District Prosecutor's Office in Zlín and the Regional Court in Ostrava, branch in Olomouc. He also gained experience during his long-term cooperation with the law firm of JUDr. Milan Otevřel. Since 2023, he has been working as a junior lawyer, first at the office of Juráš, Chovancová, David & advokáti, and since 2025 at SAMAK Legal.

In his practice, he mainly focuses on commercial law and contentious matters.