This research investigates how civil servants’ perceptions of organizational support and workplace spirituality shape their job performance, with proactive attitude and employee engagement functioning as key mediators. Data were collected through randomly distributed questionnaires from 101 Indonesian public sector employees and analyzed using structural equation modeling in AMOS 26. The findings indicate that organizational support positively influences both proactive attitudes and performance, with proactive attitude acting as a mediating mechanism. Workplace spirituality also enhances employee engagement and performance, with engagement serving as a mediator in this relationship. Moreover, proactive attitude and engagement independently contribute to improved performance outcomes. These results underscore the importance for policymakers and public sector managers of fostering proactive behaviors and engagement to elevate employee effectiveness. The study extends current understanding of human resource management by demonstrating the critical mediating roles of proactive attitude and engagement in translating organizational support and workplace spirituality into better performance among Indonesian civil servants.
