The main objective of the current study is to examine the impact of the corporate entrepreneurship, knowledge management on the job performance of employees of IT sector firms in Indonesia. Additionally, the study has also examined the mediating role of organizational commitment, in the relationship between corporate entrepreneurship, and job performance, and between the knowledge management and the job performance. The firms from the IT (information technology) industry are chosen as a sample of the study. The data is collected with the aid of a questionnaire that is adopted from the prior studies. The study has used the structural equation modeling for the analysis of the data. At earlier stages it is suggested to apply PLS modelling that is at theoretical development stage which let the researcher to confirm and examine the experimental models determining the direct relationship between compete entrepreneurship, knowledge management, organizational commitment, and the job performance are significant at p-value less than 0.05. The findings of the study highlighted that the compete entrepreneurship, knowledge management, are significant determinants of the organizational commitment. Meanwhile, the study has confirmed that the organizational commitment, mediate in the relationship between corporate entrepreneurship, and job performance, and between the knowledge management and the job performance. The study is among the pioneer study and will be helpful for the policymakers and researchers.