After graduation Hayali worked as a sports presenter for Deutsche Welle in Cologne / Bonn, as a freelancer for the private station Radio Cologne and as a presenter of the news program Journal on DW-TV in Berlin.
In April 2007 Hayali became the presenter of the ZDF news programme heute, especially the weekday heute - in Deutschland news block and the weekend editions, and co-anchor of Heute Journal, usually with chief anchor Steffen Seibert.