Born in Steinach am Brenner, Austria, Walter Rumer studied with Josef Sorg in Innsbruck, Alois Posch in Vienna, and Bill Hunt in London. He specializes in the historical contrabass.
He is the section leader of the Akademie für Alte Musik Berlin. Additionally he performs and solos with the Camerata Salzburg, Jazz with Die Erben, the Jazzorchester Tirol and Marco Polo. Since 1986 Walter Rumer has taught bass at the Mozarteum Salzburg and since 1987 has led the contrabass class of the Tyrolean State Conservatory.