Zimmermann started his career at the local team CSM Reșița and was bought by Politehnica Timişoara before the 2003/2004 season.
zˈɪmɚmən stˈɑːɹɾᵻd hɪz kɚɹˈɪɹ æt ðə lˈoʊkəl tˈiːm sˌiːˌɛsˈɛm ɹᵻsˈiːɾə ænd wʌz bˈɔːt baɪ pəlaɪtˈeɪnɪkə tˈɪmɪʃˌoːɹə bᵻfˌoːɹ ðə tˈuː θˈaʊzənd θɹˈiː slˈæʃ tˈuː θˈaʊzənd fˈoːɹ sˈiːzən.