He worked as a film critic (1961–1962) and editor-in-chief (1962–1964) of the magazine "Trotzdem" of the Socialist Youth Austria.
From 1995 to 2002, Schieder was district chairman of the SPÖ in Vienna-Penzing (14th district) and was succeeded in this position by his son Andreas Schieder (* 1969), who was also state secretary in the Ministry of Finance of the Faymann I government at the time and was the top candidate of the SPÖ for the 2019 European Parliament elections.
[4] Vienna Central Cemetery: Memorial grave of Peter Schieder In 2004, he was awarded an honorary doctorate in political science by the University of Bucharest.
As a young member of parliament in 1971, he was significantly involved in the repeal of the total ban on homosexuality in Austria and made LGBTI rights one of his priorities in his inaugural address as president of the Parliamentary Assembly of the Council of Europe.
"Democracy, justice, and international cooperation" were always the political guiding principles of the deceased, according to Fischer.