The article describes community psychologists’ competencies, emphasizing the importance of ecological and systemic perspectives that allow them to deal with individual psychological issues framed in social and cultural domains. Furthermore, it gives evidence of the specific knowledge that the community psychology approach brings to the professional activity: its aims and methodologies. It also explains why individual and social values as well as fairness and justice are affecting psychological, social, and individual well-being. Finally, it describes the community psychology backbone, depicting some peculiar competencies that characterize the interventions of community psychologists in various domains that allow them to use their psychological background in different contexts. These are entailed by the TRIP model, which presents trustfulness, reflexivity, intersectionality, and positionality as community psychologists’ core methodological acquirements as well as basic values.