At the end of his PhD he was elected to a research fellowship at Trinity College in 1995, and he also received a PPARC Postdoctoral Fellowship. He was a postdoc at Imperial College for 2 years, followed by 4 years as a postdoc at DAMTP. He received a PPARC advanced research scholarship in 1999. In September 2001 he moved to the School of Physics and Astronomy, University of Manchester as a Lecturer, where he was based at Jodrell Bank Observatory until moving to the Alan Turing Building in 2007. He became a Senior Lecturer in 2005, a Reader in 2008 and a Professor of Cosmology in 2012, before becoming the Associate Director for Science and the head of the Cosmology research group.
