Coming from a pure maths background, Lies ventured into the world of biomedical research, ending her academic career at Imperial College as a computational immunologist. She joined Sandtable, a start-up specialising in bespoke agent-based modelling. This led her to the world of marketing at Choreograph (the data and tech arm of GroupM and WPP), where she now is a Sr Director, Data Science building products that support strategists and planners.