University of Cambridge
Postdoctoral Fellow in Theoretical Astrophysics
Institute for Advanced Study
IBM-Einstein (sabbatical) Fellow and Simons (sabbatical) Fellow
University of Rochester
Associate Professor of Physics and Astronomy (with tenure)
GE Research
Summer Undergaduate Researcher
Harvard-Smithsonian Center for Astrophysics
Summer Undergaduate Researcher
University of Rochester
Professor of Physics and Astronomy and Distinguished Scientist, Laboratory for Laser Energetics
Massachusetts Institute of Technology
Summer Undergraduate Researcher
University of Rochester
Assistant Professor of Physics and Astronomy
Institute for Defense Analyses
Member of Defense Science Studies Group (DSSG, 2006-2007) and Consultant
Caltech
Postdoctoral Scholar in Physics
University of Cambridge
Harvard University
Trinity College Cambridge