 In 1995, he moved to the University of Southampton where he worked as a Professor of Chemical Biology.In 2013, Brown again moved, to take up position of the Professor of Nucleic acid chemistry at the University of Oxford where he now holds a joint position at the Department of Chemistry and Department of Oncology.In 2014, he was elected as the President of the Chemical Biology Interface Division of the Royal Society of Chemistry for a term of three years.