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Helen Johnson is a Senior Data Scientist at Co-op since April 2018, where responsibilities include managing data science delivery for bespoke digital offers to 1 million members, A/B test design, strategic contributions, and ongoing code development. Prior experience includes roles as a Data Scientist and Junior Data Scientist at Durham University from October 2013 to November 2017, where Helen served as a Postgraduate Researcher in Astrophysics, conducting spectral and image analyses, processing large datasets, publishing two first-author papers, presenting at international conferences, and teaching undergraduate students. Helen holds a Master’s degree in Physics from Durham University, earned in 2012.