- Quondam Fellow, All Souls College (from 2006)
- FOM Springplanker (Research Associate), Instituut voor Theoretische Fysica, Universiteit van Amsterdam (from 2003 to 2007)
- Fifty-Pound Fellow, All Souls College (from 2003 to 2006)
- Postdoctoral Research Fellow, All Souls College (from 1999 to 2002)
- Postdoctoral Fellow, University of British Columbia (from 1998 to 1999)
- Computation of dynamical correlation functions in quantum integrable models: the ABACUS program; Low-dimensional systems: spin chains, atomic gases, quantum wires and carbon nanotubes; Integrable models and the Bethe ansatz; Conformal field theory; Bosonization; Disordered systems