This study investigates the interplay between Human Resource (HR) Development, HR Competencies, ASN Core Values, and Employee Performance in the Library Unit of State University of Malang. Adopting a quantitative approach with Partial Least Squares - Structural Equation Modeling (PLS-SEM), the research examines the mediating role of HR Competencies and the moderating influence of ASN Core Values (Service Orientation, Accountability, Competence, Adaptability, and Collaboration). Findings reveal that HR Development significantly enhances HR Competencies but lacks direct influence on employee performance. Similarly, HR Competencies fail to mediate the relationship between HR Development and performance. Additionally, ASN Core Values do not significantly moderate the relationship between competencies and performance, suggesting insufficient internalization of these values within organizational practices. These results underscore the need for integrated HR strategies that align competencies with organizational culture and values to optimize employee performance. This study contributes to the theoretical and practical understanding of HR practices in public sector organizations, particularly within academic library settings.