Relying on the diversity of research activities is the key to confronting divergent opinions and bringing them together on a common basis to help formulate scientific subjects. I joined SystemX in 2013 with the ambition of working on collaborative projects around the themes of the cloud, networks, edge computing and optimisation. Collaborations with researchers from various backgrounds, both internally and externally, have enabled me to enrich my knowledge of the industrial and academic worlds between which the institute positions its offers and collaborations. I completed my Habilitation to Direct Research (HdR) in 2017. This is the result of several years of confrontation, sharing ideas and research subjects in the abovementioned themes, made possible in large part thanks to the efforts made and scientific missions accomplished within SystemX.