He served as the artistic director of Ateneum Theatre in Warsaw during the interwar period (1930–32), and within a short period raised its reputation as one of the leading voices for Poland's new intelligentsia,[1][2] with groundbreaking productions of Danton's Death by Georg Büchner (1931), The Captain of Köpenick by Carl Zuckmayer (1932), as well as popular Ladies and Husars (Damy i Huzary) by Aleksander Fredro (1932) and The Open House by Michał Bałucki.

Upon his return to sovereign Poland in 1918 he embarked upon an energetic career in emerging national and experimental theatre, with guest performances in over ninety cities and towns until 1928.

[3] Following the German occupation of Poland during World War II, he became involved with the political and military Catholic underground organization Unia.

With his acting understated and free from affectation, he was able to create characters who were profoundly human, moving and simple.

Jaracz was considered to bring to the theater a somewhat plebeian flavor that added verity to his roles.