Peter Fineran is an internationally-recognised leader in bacterial immune mechanisms who has greatly advanced our understanding of interactions between phages, mobile genetic elements and bacteria. In particular, he has made world-leading contributions to the area of CRISPR-Cas biology and abortive infection systems. He applies his expertise in phage biology to develop phage-inspired antimicrobials, currently to tackle agricultural pathogens. Fineran is a strong research mentor, training over 50 post-graduates and 14 post-docs, and an accomplished science communicator. His scientific excellence is evident from his impressive publication record and international distinctions, including being recognised as a top 1% cited researcher (Web of Science) and receiving the Fleming Prize (Microbiology Society, UK), which is awarded to an outstanding researcher within 12 years of achieving their PhD.