Rottenführer was a Nazi Party paramilitary rank that was first created in the year 1932. The rank of Rottenführer was used by several Nazi paramiltiary groups, among them the Sturmabteilung (SA), the Schutzstaffel (SS) and was senior to the paramilitary rank of Sturmmann.
Rottenführer was first established in 1932 as an SA rank due to an expansion of the organization requiring a greater number of enlisted positions. Since early SS ranks were identical to the ranks of the SA, Rottenführer became an SS rank at the same time.
Translated as “Team Leader,” a Rottenführer was the first SS and SA position to have command over other paramilitary troops, usually no more than five to seven persons. A Rottenführer, in turn, answered to a squad leader known as a Scharführer.
The insignia for Rottenführer consisted of two silver stripes on a bare collar patch. On field grey SS uniforms, the sleeve chevrons of an Obergefreiter (Senior Corporal) were also worn. Rottenführer was also a rank of the Hitler Youth where the position was considered a junior squad leader title.
A rank of Oberrottenführer also existed, but was only used in the Hitler Youth.
Source: Wikipedia; Pictures courtesy of: U.S. National Archives