[1] Jarrold came to the United States as a NATO Postdoctoral Fellow at the University of California in Santa Barbara.
Joining the Physics Research Division of AT&T Bell Laboratories in Murray Hill, New Jersey after UCSB.
In the summer of 2002, he moved to Indiana University as Professor and a Robert & Marjorie Mann Chair in the Department of Chemistry.
[2] Jarrold's research focuses include use of ion-mobility spectrometry to analyze proteins, peptides, clusters, and other biomolecules.
Through ion mobility spectrometry, his group was able to see deviations from the native state and different conformations (different protein folding modes).