The World Health Organization recently added Acinetobacter baumannii at the top of the priority list of emerging and critical pathogens, against which the number of effective antibiotics is alarmingly low. I propose to find novel antimicrobial targets for A. baumannii by discovering haem related systems that contribute to its survival. Bioinformatics will be used as a powerful tool to explore A. baumannii haem metabolism-related genes. The role of these genes will be tested through microbiology and biochemistry approaches, and their contribution to virulence will be analysed in host-pathogen interaction assays. This multidisciplinary research programme will boost my scientific skills and act as a pipeline to launch my career as an independent researcher. Furthermore, this proposal has the added value of including a custom-made training programme on leadership, management, dissemination and outreach activities. Hence, “AgainstResistance” will be the ideal framework to enhance my competences, maturity and independence as a competitive researcher, and crucial to boost my career prospects as a future group leader in the field of antimicrobial resistance, which is one of the critical current and future health challenges. The proposal will make a real difference in European excellence and competitiveness by materialising its leadership and expertise in multidrug resistance of human pathogens.