a b s t r a c tIntroduction. -Work engagement is a positive state of mind related to work, characterized by vigor, dedication, and absorption. It is measured through the Utrecht Work Engagement Scale (UWES), which has shown good psychometric properties across occupational types and languages. Besides, some individuals may more easily experience work engagement than others, suggesting that individual stable tendencies could predict this state of mind. Objectives. -In this article, we aim to: (1) present the psychometric properties of the French versions of the Utrecht Work Engagement Scale (UWES-9 and UWES-17), and (2) assess whether work engagement can be associated with personality traits and impulsivity. Method. -For this purpose, 661 French-speaking workers (M age = 40.86, SD age = 12.35) were recruited in the French-speaking part of Switzerland. Two hundred and eleven subjects responded to the UWES-17, the Zuckerman-Kuhlman-Aluja Personality Questionnaire (ZKA-PQ) and the UPPS Impulsive Behaviour Scale (UPPS), and 450 subjects responded to the UWES-9 and the NEO-Five-Factor Inventory Revised (NEO-FFI-R).Results. -Results showed that UWES-9 reached better psychometric properties than UWES-17. Moreover, it appeared that individuals who were active, conscientious, emotionally stable, and extroverted were more prone to experience work engagement than others. Discussion. -Thus, the path to experiencing work engagement seems to differ as a function of personal stable characteristics. Further studies should analyse how personal characteristics interact with working conditions in determining work engagement.