This research investigates the determinants of entrepreneurial intention among Vietnamese employees, a crucial segment of potential entrepreneurs yet mostly neglected in previous studies. Given the focus on intention to create an international business venture and the working segment, we expand the entrepreneurial event theory by supplementing perceived competence and job satisfaction as determinants of entrepreneurial intention while testing the mediation of perceived feasibility and perceived desirability in such relationships correspondingly. Three focus groups on 27 Vietnamese employees were conducted to explore the specific relevant competences and develop the conceptual model. Afterwards, data from an empirical survey on 567 Vietnamese employees was analysed using a partial least squares structural equation model to test the hypothesised relationships. The empirical results indicate that perceived competences, viz. administrative competence, communication skills, network building competence, and international business expertise have a positive impact on entrepreneurial intention. The relationships between either administrative competence, network building capacity or international business expertise, and entrepreneurial intention are totally mediated by perceived feasibility. The study also reveals a noteworthy finding about the negative direct effect of overall job satisfaction on entrepreneurial intention and the partial mediating role of perceived desirability in this relationship.