The aim of this study is to examine the relationship between personality type and job satisfaction amongst corporate employees in Ireland. A survey conducted with Irish adults (N = 86) investigated the impact of the Big Five personality traits (extraversion, agreeableness, conscientiousness, neuroticism and openness to experience) on job satisfaction, employing the Minnesota Satisfaction Questionnaire (MSQ) short form. Using a correlational design, conscientiousness was found to be the strongest correlate of job satisfaction (r = .31), whilst neuroticism was negatively correlated with job satisfaction (r = -.38). Contrary to previous findings, extraversion had a non-significant relationship with job satisfaction. The Big Five had a multiple correlation of .48, and using regression analysis, accounted for a total variance of 23% in job satisfaction amongst corporate employees in Ireland. The idea that personality traits seem to be at least moderate predictors of job satisfaction is upheld by the results of this study.