Objective: The purpose of this study was to examine the influence of protean career attitudes and boundaryless career attitudes on job satisfaction and career commitment in daycare teachers. The subjects in this study were 269 inservice daycare teachers who worked in childcare centers in the metropolitan cities of Busan and Daegu. Methods: As for data collection, a survey was conducted for approximately four weeks from January 3 through 31, 2020, and correlation analysis and multiple regression analysis were calculated to analyze the collected data in order to address the research questions of the study. Results: The findings of the study were as follows: First, the protean career attitudes and boundaryless career attitudes of the daycare teachers had a positive correlation with their job satisfaction and career commitment. Second, whether the protean career attitudes and boundaryless career attitudes of the daycare teachers affected job satisfaction and career commitment was analyzed. The self-directedness and value orientation of the protean career attitudes of the daycare teachers and their boundaryless career attitudes exercised an influence on job satisfaction and career commitment. Conclusion/Implications: The findings of the study suggest that the protean career attitudes and boundaryless career attitudes of daycare teachers are crucial factors that have an impact on job satisfaction and career commitment.