PurposeThe authors aimed to investigate whether the competencies of public servants (self-competence, teamwork competence, change competence, communication competence (CC) and ethical competence) influence their organizational commitment and indirectly their job satisfaction.Design/methodology/approachBased on a structural model from the literature, the authors conducted a survey with 463 Brazilian public servants using a questionnaire, and the authors evaluated the measurement model through confirmatory component analysis (CCA). Then, the authors used partial least squares structural equation modeling (PLS-SEM) to analyze the structural model.FindingsThe authors' results showed that the ethical competence construct tends to have a direct positive influence on the organizational commitment construct and indirectly influences the job satisfaction of public servants. On the other hand, the authors found that the self-competence, teamwork competence, change competence and CC constructs did not impact organizational commitment or job satisfaction indirectly.Originality/valueThe authors conclude that developing ethical competence in public servants is likely to increase their organizational commitment and indirectly positively affect their job satisfaction. This research tested the five dimensions of competencies under a new focus, public service, seeking to evidence their relationships with the organizational commitment and job satisfaction of public servants, filling a gap in the literature.