Career
Braun began his career in Hungary before finishing it in the American Soccer League. He earned 27 caps, scoring 11 goals, with the Hungarian national team After retiring from playing, he coached for several years.
Braun died in 1943 in a Nazi forced labor camp.
He was Jewish.
Braun played as youth with VAC Budapest. In 1916, he signed for MTK Budapest in the Hungarian League where he played primarily as a right wing back.
He retired from playing in 1925 after suffering from multiple injuries. In 1929, he moved to the United States where he attempted a come back with the Brooklyn Hakoah of the American Soccer League.
He played seventeen games before moving to the Brooklyn Wanderers in the fall of 1929.
He played eleven games during the 1929-1930 season, then retired permanently. Braun earned twenty-seven caps, scoring eleven goals, with the Hungarian national team His first came in an 6 October 1918 victory over Austria.
His last came in a 3-3 tie with Poland in December 1926.
Braun later coached ŠK Slovan Bratislava from 1935 to 1938.