Grounded on the analytical perspective of Bourdieus´ praxeology, the paper discusses the relevance of “internationalization” for emerging researchers’ social practices in everyday work and in the course of academic careers. In our current research project “Trajectories in the Academic Field” we examine career paths as long-term and path-dependent, socio-biographical processes (“trajectories”, Bourdieu 1993) in two scientific fields: The field of cognitive neuro-sciences and the field of empirical educational research. After a brief outline of the theoretical foundations of Bourdieu’s practice theory (Bourdieu 2004) and its implications for research on career paths in the academic field, we ask for the relevance of internationality within these trajectories: How does Internationality become a norm as an element of scientific excellence, how do institutionalized structures shape everyday practice according to this norm and how do novices learn to perform in this internationalized academic field? Which learning opportunities are offered to them by the academic institutions? And how do they maybe learn, too, not to be governed that much (Foucault)? The paper presents the analytical framework, connects to the discoursive trends of internationalization, relates the research fields to those ‘Meta-Narratives’ and draws on first empirical findings of the research project “Trajectories in the academic field”.