Gill works for Busy Bees Nurseries as their international lead for quality and safeguarding. Until recently, Gill was the deputy director for schools and early education at Ofsted, where she was responsible for school inspection policy, the curriculum unit, SEND, early years regulation and inspection, ITE, literacy and inspector training. She also led on the inspection of reading and worked closely with the DfE English hubs. As a HMI, she inspected schools, children's centres, SEND, local authorities and early years settings. Before joining Ofsted, she was a headteacher of several primary schools. Her specialist subjects are English, particularly the teaching of reading, and music.