Kas works as a research advisor for Christian Aid in London. She has a background on participatory research and has taught and researched at the Polytechnic University of Valencia, Spain (2009-15) and at IDS during her PhD (2012-16). Her PhD was about tax justice campaigning in Nigeria and the UK. She is currently collaborating in an ICTD study on the gendered dimensions of taxes and other payments in local markets in Nigeria (2018, forthcoming). Broader interests include knowledge inequalities, and the politics of evidence.