Dr Walters was a Research Fellow at the University of Leeds from 2002 to 2004, and a Lecturer in Mathematical Modelling and Genetic Epidemiology in the University of Sheffield Medical School until joining the Department of Probability and Statistics in 2009.

My research interests are in the application and development of (mostly Bayesian) statistical methods to identify disease-causing DNA variants in population-based studies. I am interested in finding coherent ways of incorporating functional genomic information into priors to aid the detection of these causal variants. I have also recently become interested in developing statistical approaches to determine essential bacterial genes using transposon insertion data (next generation sequencing). One such approach uses modified Hidden-Markov models.