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Brian Butler is an experienced analytical professional currently serving as the Analytical Team Lead and Senior Scientist at Sanofi since September 2021. Previously, Brian held the position of Characterisation Scientist at Pfizer from March 2016 to August 2021, contributing to vaccine and protein teams and performing various assays, including Capillary Electrophoresis and HPLC. Brian’s earlier roles include Laboratory Technician at Fitz Scientific, Environmental Laboratory Assistant at Teagasc, and Environmental Engineering Laboratory Technician at Trinity College Dublin, among others. Brian holds a Master of Science in Sustainable Development from Technological University Dublin and a Bachelor of Science in Environmental Science & Health from Dublin City University.