Employees implement alterations to their work responsibilities, termed "job crafting." Based on this phenomenon, this research assesses the impact of skill diversity, a component of work characteristics, on employee job crafting. It examines the influence of employee readiness and external resources, such as job security, autonomy, and feedback, on job design. The research aims to understand the interaction and influence of these factors on workers' job-crafting behaviors. The present study investigated the relationships among several aspects within the IT sector. A random sample of 350 workers was collected using an online questionnaire for data analysis utilizing probability sampling. Data analysis has been conducted using SPSS 26 and Smart PLS 3.0. This research enhances our comprehension of employee work customization by illustrating a correlation between the Job Characteristics Model (JCM) and job crafting. It indicates that people are optimally positioned to choose their job alterations and that job attributes influence this process. This study investigates the relationship between the Job Characteristics Model (JCM) and job crafting, which has yet to be extensively studied. By incorporating social support as a variable and utilizing expert data, this study offers a fresh perspective, distinguishing it from most research that primarily depends on employee data. This method provides new perspectives in the field.