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Abstract
This study aims to analyze the influence of adaptive leadership on service performance, mediated by employee engagement and moderated by corporate culture (a case study of BPJS Ketenagakerjaan Yogyakarta). This study uses a quantitative descriptive approach and verification research methods. The population in this study were 74 BPJS Ketenagakerjaan Yogyakarta employees. The sampling technique used in this study was total sampling. Therefore, the sample analyzed was 74 respondents. The data collection method in this study used primary data obtained directly from respondents through a questionnaire instrument. Data analysis was carried out using the Partial Least Square (PLS) method using SmartPLS software version 4. The results of this study indicate that adaptive leadership has a positive effect on service performance, adaptive leadership has a positive effect on employee engagement, and employee engagement has a positive effect on service performance. Furthermore, employee engagement mediates the positive relationship between adaptive leadership and service performance, while corporate culture strengthens the positive effect of adaptive leadership on service performance