Stephen is Chair of the Social Security Advisory Committee. From 2015-17, Stephen was an advisor to governments in both the Middle East and sub-Saharan Africa. He has been a Director at Social Finance; and he also advised the UK Department for Work and Pensions from 2010 to 2013. Prior to joining DWP, Stephen spent 15 years at Oliver Wyman, where he was a Partner, and served a term as the head of its London Office. He is a board member of the Centre for Social Justice and also of Social Finance Digital Labs, and a member of the UK Social Metrics Commission. He is the author of Dynamic Benefits (the blueprint for Universal Credit) and Outcome-based Government.