The research focused on constructing a psychological well-being profile for flourishing practices for junior leaders by establishing the relationship between junior leaders' dispositional attributes (emotional affect, career orientations, and organisational commitment) and the flourishing attribute (positive psychological functioning). A nonprobability purposive sampling quantitative method was applied to a sample of South African National Defence Force (SANDF) personnel in Gauteng (N = 458) at junior leadership levels to explore the statistical relationship between their dispositional attributes (emotional affect, career orientations, and organisational commitment) and the flourishing attribute (positive psychological functioning) attribute. Multiple regression analyses indicated the dispositional attributes with the exception of emotional affect as significant predictors of the flourishing variable. The structural equation modelling (SEM) indicated a good fit of the data with the correlation-derived measurement model. Moderated hierarchical regression analyses indicated that age, race, gender and years of service as significant moderators of the relationship between the participants‘ dispositional attributes (emotional affect, career orientations and organisational commitment) and flourishing (positive psychological functioning) attribute. Tests for mean differences discovered that participants differed in terms of their age and race. The study made a significant contribution to the bulk of knowledge in the field of Industrial and Organisational Psychology. On a theoretical level, the study deepened the understanding of the individual and cognitive, affective, conative and relations management dimensions of the hypothesised psychological well-being profile. On an empirical level, the study developed an empirically tested psychological well-being profile that informs flourishing practices for individual junior leaders and organisational levels. On a practical level, dispositional and flourishing practices that inform the dimensions of the psychological well-being profile were recommended. / Industrial and Organisational Psychology / Ph. D. (Industrial and Organisational Psychology)