The relationship between ethics and job satisfaction for MIS professionals is examined empirically. Five dimensions of job satisfaction are examined: (1) satisfaction with pay, (2) satisfaction with promotions, (3) satisfaction with co-workers, (4) satisfaction with supervisors and (5) satisfaction with the work itself. These dimensions of satisfaction are compared to top management's ethical stance, one's overall sense of social responsibility and an ethical optimism scale (i.e., the degree of optimism that one has concerning the positive relationship between ethics and success in his/her company).Results indicate that MIS professionals are more satisfied with the various dimensions of their jobs when top management stresses ethical behavior and when they are optimistic about the relationship between ethics and success within their firms. The one exception to this is pay satisfaction which is unrelated to these constructs. One's sense of social responsibility is also relatively unrelated to job satisfaction.