The promotion of well-being and increased work productivity requires good ergonomics where job demands are aligned with the abilities, characteristics, and needs of the workers. However, a different context of work setting may result in a different role of job demands. Furthermore, the current literature has yet to clarify the potential mediating influence of job demands on psychosocial safety climate and job satisfaction. Results obtained from 387 employees in financial institutions in Aceh, Indonesia, confirmed this relationship, validating the indirect effect of psychosocial safety climate on job satisfaction through job demands. Specifically, the results showed that both psychosocial safety climate (B = .422, p < .001) and job demands (B = -.578, p < .001) significantly predicted job satisfaction, with this relationship mediated by job demands (indirect effect B = .108, Boot SE = .05, CI [.025, .197]. These findings highlight the importance of examining job demands and psychosocial safety climate in relation to job satisfaction within collectivistic cultures. The theoretical, methodological, and practical implications of the study are discussed, along with future research opportunities.