This research aims to prove the effect of competence, self-efficacy and work life balance on job satisfaction. The population used in this study were employees of PT. Royal Korindah in the production department. The sampling technique used was nonprobability sampling technique and obtained 150 samples that met the criteria. Data processing was carried out using SPSS 25. The results of this study indicate that: Competence, self-efficacy and work life balance simultaneously influence employee job satisfaction, competence has a negative and significant effect on employee job satisfaction, self-efficacy has a positive and insignificant effect on employee job satisfaction. , work life balance has a significant positive effect on employee job satisfaction.