Ciaran graduated from Dublin City University with a Bachelor’s Degree in Biotechnology in 1995 and a Ph.D. in Biotechnology in 1999. He subsequently completed a post-doctoral fellowship at the National Institutes of Health in Washington DC, studying potential vaccine candidates for malaria. In 2001, he joined Human Genome Sciences Inc., also in Washington, as a lead scientist in the Process Cell Culture development group. In 2007, he was promoted to Associate Director of the late-phase cell culture process development function. In 2011, he joined Eli Lilly as Director, Manufacturing Sciences and Technology, in Indianapolis, USA. In October 2012, he moved to the Lilly Kinsale site in Cork to lead the Biotechnology Manufacturing Sciences function.