Jung was born the son of a railway official in Plasy, Bohemia when it was part of Austria-Hungary, and attended the German-language Volksschule and Oberrealschule between 1888 and 1900 in Iglau (today, Jihlava).

Beginning in October of that year, he performed military service as a one-year volunteer with the Austro-Hungarian Navy in the rank of Seekadett, and was assigned to the protected cruiser SMS Kaiserin Elisabeth.

Returning to civilian life, Jung entered government service in October 1906 with the Imperial Royal Austrian State Railways as a mechanical engineer, later becoming an inspector and workshop manager in Vienna and Reichenberg (today, Liberec).

Jung was fired from his railway job in 1910 because of his political activism but the party put him on its payroll and he devoted himself to theoretical work.

[2] Along with Dr. Walter Riehl, Jung drafted a revised party program at Iglau in 1913 "which contained a more detailed comparison of international Marxism and national socialism to highlight their ideological differences and a more pointed attack on capitalism, democracy, alien peoples, and Jews.

[3] The Iglau program would serve as the basis from which Jung's later political theories, and those of the forthcoming Nazi movement in Germany, would evolve.

Soon however, the DNSAP had split in two as a result of the establishment of the nation of Czechoslovakia, its Bohemian and Austrian branches forced to reconstitute themselves as separate independent parties.

He became the publisher of the German-language Party newspaper Neuen Zeit (New Time) in Troppau (today, Opava), as well as the co-editor of the monthly magazine Volk und Gemeinder (People and Community).

Nationale Sozialismus anticipated Gottfried Feder’s Der deutsche Staat auf nationaler und sozialer Grundlage (The German State on a National and Social Basis) by four years, Hitler’s Mein Kampf by six, and Alfred Rosenberg’s Der Mythus des zwanzigsten Jahrhunderts (The Myth of the 20th Century) by over a decade.

[6] Adolf Hitler, at that time a 30-year-old rising orator in the German DAP, wanted to rename it the "Social Revolutionary Party".

Together with his fellow DNSAP leader and parliamentarian Hans Krebs, Jung also attended the Nuremberg Nazi Party rally on 19–21 August 1927.

It was formed under the guise of a sporting and hiking organization but was based on the model of the Nazi Party Sturmabteilung (SA) in Germany.

Its members wore brown uniforms like those of the SA and staged large rallies and marches agitating for unification with Germany.

[11] Jung joined the SS (membership number 276,690) on 17 June 1936 with the rank of SS-Sturmbannführer and was attached to the staff of Reichsführer-SS Heinrich Himmler.

In October of that year, following the Munich agreement and the cession of the Sudetenland to Germany, he hoped for a high level leadership appointment in the new territory but was only made the department head for economy and agriculture in the administration set up by Reichskommissar and Gauleiter Konrad Henlein.

[14] Additionally, in March 1942, he was placed on the technical staff of Fritz Sauckel, the General Plenipotentiary for the Allocation of Labor, and acted as his authorized representative.

[16] In March 1945, as the Red Army approached from the east, he sent his family back to Germany for safety but he remained at his post until the end of the war in Europe.

At one time Jung had been a key leader in an international political movement, a major thinker who saw himself (and was seen by others) as the ‘Karl Marx’ of a vital new economic worldview.