Rosen made her concerto debut with the Philadelphia Orchestra at age eighteen. She was a member of the Cantelina Chamber Players in 1982. She was a member of the Mendelssohn Quartet in 1986 when they made their recording debut with String Quartet No. 11 (Dvořák), Op. 61.
As of 2014, Rosen was Assistant Professor of Cello at the Aaron Copland School of Music at Queens College and on the Faculty at the Mannes College of Music in New York City, as well as continuing to perform and record professionally.
