[3] Born in Langenhagen in the Hanover Region (Lower Saxony), Kleinitz grew up in Hanover and obtained an internship at the Staatsoper Hannover as a teenager after writing to its director, Hans-Peter Lehmann.
After studying singing and theatre, she became assistant director at the opera house in Bregenz, Austria, in 1991.
From 2006 to 2010, she was director of artistic planning at the Théâtre Royal La Monnaie in Brussels.
At the same time, from October 2013, she chaired the Opera Europa network, which brings together the major European opera houses, the first woman in this position (which has been held by personalities such as Bernard Foccroulle and Peter de Caluwe [Wikidata]).
[4][5][6] In 2016, she was appointed to succeed Marc Clémeur as director of the Opéra national du Rhin in Strasbourg from September 2017.