This study investigates correctional officers’ attitudes towards prisoners and how these are associated with job satisfaction and job stress among correctional officers in New South Wales (NSW), Australia. Using a longitudinal design, we examined changes in attitudes among a sample of 266 correctional officers from 13 correctional centres before and 6 weeks after they participated in a training aimed at enhancing rehabilitative conversations with people in prison. This study utilises and validates an abridged version of the Attitudes Towards Prisoners (ATP) scale to assess whether changes in officers’ attitudes were linked to shifts in job satisfaction and job stress over time. Results from hierarchical regression modelling showed that the magnitude of changes in ATP scores was associated with higher post-training job satisfaction and lower job stress. These findings contribute to the discourse on the rehabilitative role of correctional officers and suggest potential benefits of fostering positive attitudes towards prisoners, including through targeted organisational initiatives, for both staff wellbeing and outcomes for those under their care.