Stress is something that cannot be avoided, especially stress related to one's work. Employees who experience job stress have been found to be less motivated and healthy, and, thus, less productive at work. The teachers and operational staff at the HIJ School confirmed that they felt job stress due to the unpredictable job demands of the school. The purpose of this study is to examine the relationship between job demands and job stress, and determine the appropriate interventions. Participants in this research included 56 teachers and staff who filled out an online questionnaire and who fit the following criteria: Indonesian citizens, minimum education level of a bachelor's degree, and a minimum of two years' work experience. The design of this research was quantitative and used Pearson correlation analysis using SPSS. The measuring tools used were the Job Stress Scale to measure job stress (DV) with Cronbach's alpha = .86, and the Challengeand-Hindrance-Related Self-Reported Stress Measures to measure job demands (IV) with Cronbach's alpha = .90. The respondents that took part in the intervention were six operational staff participating in a job crafting programme. The results of the research indicate that job demands significantly affect job stress (p < .05), and that job crafting interventions can decrease the perception of job demands with a pre-test/post-test difference of 38.33 and 31.00 respectively.