Knoller worked as coordinating producer on the comedy series Veronica's Closet in 1997 and as post producer on the television drama Skip Tracer in 2008. Between 1994 and 2004 she worked as associate producer, co-producer, coordinating producer and producer on the comedy series Friends. This work earned her three Emmy Award nominations for Outstanding Comedy Series in 1999, 2000, and 2003 and an Emmy Award in 2002. She also worked as associate producer on the Friends spinoff series Joey in 2004.