Human resource development at PT. Makassar Raya Motor in Central Sulawesi is carried out through the stages of the selection process and adjusting the company's needs. This is done to obtain the right human resources in the correct position at the right time. This refers to the idea that in the future, the quality of work life can increase the role of employees towards the company, of course through a career development process. Employees will improve at work by implementing a career development system, leading to increased company performance. This study aims to explain the relationship between the constructs (individual characteristics, job characteristics, organizational characteristics, career development, and leadership policies) and understand the five constructs' meanings. The analytical tool used is PLS-SEM, which consists of two sub-models: the measurement model, often called the outer model, and the structural model, often called the inner model. The test results show that individual characteristic variables, job characteristics, and organizational characteristics do not affect the career development of employees of PT. Makassar Raya Motor in Central Sulawesi, while personal factors, job characteristics, and organizational characteristics significantly influence career development through leadership policies at PT. Makassar Raya Motor in Central Sulawesi