Dr Arif Ahmed is Senior Lecturer in the Faculty of Philosophy at the University of Cambridge. Previously he was a Leverhulme Research Fellow in the University of Sydney, an Early Career Research Fellow at CRASSH, and a Temporary Lecturer at the University of Birmingham. Before that he worked in London and Bristol after studying mathematics at St Anne's College Oxford.

His main professional interests are Wittgenstein and Decision Theory and his recent and forthcoming publications include Wittgenstein's 'Philosophical Investigations': A Critical Guide and Evidence, Decision and Causality (both Cambridge University Press). Politically libertarian, he is also a local Trade Union official and caseworker. Theologically he is an atheist and regularly speaks for atheism in public debate, most recently with Prof. William Lane Craig and Prof. Gary Habermas.