Dr Jayakumar was educated at Oxford University where he studied History (BA 1997, D.Phil, 2001). He has published in various peer-reviewed journals and edited volumes on topics relating to medieval history (the focus of his doctorate). He has been a member of the Singapore Administrative Service since 2002. During this time, he was posted to various Ministries, including the Ministries of Defence, Manpower, Information and the Arts, and Community Development, Youth and Sports. He was from August 2011-July 2014 a Senior Visiting Research Fellow at the Lee Kuan Yew School of Public Policy. The main focus of his research and writing there has been local society and politics. He is currently completing a major book project relating to local politics (forthcoming, 2017). His other interests include extremism, social resilience, and homeland defence.