Director of Assessment Research and Development, Cambridge Assessment (University of Cambridge Local Examinations Syndicate).
More recently, he has undertaken wide-ranging international comparison of the performance of education systems, and advised OECD on its curriculum review work. In 2010 he published ‘Could do better’ which laid down the principles for the review of the National Curriculum in England. From 2010-2013, he was chair of the Expert Panel for Review of the National Curriculum.
Tim has published widely on assessment and curriculum. He was a member of the Ofqual Vocational Standards Advisory Group. Tim routinely provides briefings and advice to UK and other governments. He is a Fellow of Churchill College, Cambridge. In 2015 he was awarded a CBE for services to education.