<p>This study applied latent profile analysis to identify subgroups of older Korean workers based on their perceived job demands and to examine how these profiles relate to job satisfaction. Three distinct profiles were identified: low, moderate, and high job demands. Multinomial logistic regression revealed that organizational and individual characteristics significantly predicted profile membership. Job satisfaction varied across profiles: the low-demand group reported the highest wages and overall satisfaction, while the moderate-demand group reported the highest employment stability. Based on the job demands–resources theory and the conservation of resources theory, the findings highlighted how different levels of job demands shape motivational outcomes among older workers. These results underscore the need for age-inclusive work environments and tailored job designs that align with the capabilities of older workers. By adopting a person-centered approach, this study contributes to a more differentiated understanding of how job demands influence the work experiences of older adults in aging labor markets.</p>