Director of Education at No More Marking, an online engine which aims to help teachers with comparative-judgment assessment of school work; Former Head of Assessment at Ark Schools, a group of academy schools in the UK; Named in 2017 as one of “The 20 Most Influential Figures in British Education"; Author, Teachers vs Tech: The Case for an Ed Tech Revolution (2020), Making Good Progress: The Future of Assessment for Learning (2017), Seven Myths About Education (2014), and “Minding the Knowledge Gap: The Importance of Content in Student Learning” (2014, American Educator)