After the Second World War, he opened a photocopying business in Berlin, worked as a photojournalist and later went to Hamburg as a theatre photographer.
Walter Boje succeeded in capturing Milloss' choreographic ideas photographically, using colour in particular as a means of expression.
This means of expression was recognised by Heinz Hajek-Halke and Peter Cornelius, among others, and was trend-setting for younger colleagues such as Horst H. Baumann and Kilian Breier.
[citation needed] Boje was a member of the BFF Berufsverband Freie Fotografen und Filmgestalter [de] and for several years 1st chairman and later honorary president of the Deutsche Journalistenschule (GDL).
He not only produced exemplary creative colour light images of his own, but also acted as a supportive mentor for young photographers.