From 1975 to 1986, Sigrid Deger-Jalkotzy worked on the excavations of the Austrian Archaeological Institute in Aigeira in the Peloponnese.
[3] In 1976, she became a member of the Mycenaean Commission of the Austrian Academy of Sciences and, in 1978, university assistant to Gerhard Dobesch at the Institute for Ancient History and Classical Archaeology at the University of Vienna.
In 1986, she was appointed professor to the chair of Ancient History and Classical Studies at the University of Salzburg.
She worked as a guest professor at the universities of Saarbrücken, Heidelberg, Cologne and Rostock.
[4] In 2009, she was elected vice president of the Austrian Academy of Sciences (ÖAW).