We offer a training opportunity that lends itself at the interface between Complexity Science and Complex Netwok Theory. The candidate will develop analytical and computational techniques to study cutting-edge problems dealing with dynamical processes that occur on top of networked systems, such as epidemic spreading or cascading failures. The overarching goal of the internship is not to reproduce data but understanding it through a modeling scheme: we first pose a well defined question, to then propose a model with isolated mechanisms that determine emergent consequences at the collective level, from which we can establish cause-effect relations. The internship opportunity is opened by the Complex Human Behaviour Lab (CHuB) of the Digital Society Center of FBK. More information about the Research Unit is available at https://chub.fbk.eu/