Before joining Moderna in July 2021, Darius served over 16 years at Pfizer, including as the head of UK and Ireland Vaccines Business Unit. At Pfizer, Darius worked in various roles including as the Vaccines Commercial Lead in the UK, European Brand Director in the antibacterial sector, Brand Director for global women’s health, Regional Brand Director on Spiriva® and Senior Product and Brand Manager on Lyrica®. Before joining Pfizer, Darius worked for Boots the Chemist (now Boots UK Limited). Darius has previously chaired the Association for the British Pharmaceutical Industry (ABPI) vaccines group.