Geffen replaces Kathleen van Bergen, who succeeded Simon Woods in a similar position at the Philadelphia Orchestra last fall, after Woods was named president of the New Jersey Symphony. (That position opened, in turn, after Lawrence Tamburri was hired by the Pittsburgh Symphony to replace the retiring Gideon Toeplitz.)
"To get someone of Jeremy's experience and expertise to join our orchestra is an outstanding achievement for this organization," said SLSO president Randy Adams in a statement. "I'm looking forward to Jeremy and [incoming music director] David Robertson collaborating on many new and exciting programs in the coming months."
Before coming to the Philharmonic, Geffen was on the staff of the Aspen Music Festival and School and the Los Angeles Philharmonic.
The appointment comes more than three weeks into the orchestra's labor crisis, which began when musicians turned down management's final contract offer on January 3. The SLSO has not performed since.