This research aims to test and analyze whether job satisfaction has a role in mediating the relationship between compensation and benefit and transformational leadership towards the OCB level of the intern. The collected respondents were 220, consisting of people who experienced internships in Bandung and around Jakarta. This research is a non-probability sampling through the purposive sampling method and uses quantitative analysis. The calculation uses SmartPLS3 to get the SEM model and the results of the hypothesis. Based on the results obtained, all the hypotheses are accepted. Compensation and benefit and transformational leadership have a significant influence on job satisfaction. Both also affect OCB. Job satisfaction also shows a significant impact on OCB. Among all the three variables (compensation and benefit, transformational leadership, and job satisfaction), compensation and benefits have the most significant effect on OCB.