Human resource (HR) career development in Islamic educational institutions has become an increasingly important topic in the context of sustainable educational development. This study aims to examine HR career development practices at SMPS Riyadhusholihin Pandeglang and the Institute's efforts to improve HR career development as a case study representing secondary Islamic education. The research method used is qualitative research with a case study approach. Data was collected through in-depth interviews with faculty, managers, and human resources at SMPS Riyadhusholihin. The results showed that HR career development in Islamic educational institutions involves several key components, including identification of career needs, training and competency development, and job assessment. Activity programs as a form of the Institute's efforts in improving HR career development include participating in the Subject Teacher Deliberation Forum (MGMP), Teacher Working Group (KKG), Teacher Professional Education and Training (PLPG), and further study programs on a task basis carried out by individuals such as In House Training (IHT), and other activities that support the development of educators' careers and education at SMPS Riyadhusholihin Pandeglang. In addition, the author provides advice to attend training at the International School Educator Community (AISEI) to support the educational institution's goals in career development.