This study examined the differences in job related variables, job satisfaction and job performance against demographic characteristics and the impacts of job related variables on job satisfaction and job performance. A questionnaire survey collected data from september $1^{st}$ and $7^{th}$ 2011. A convenience sample was drawn from salespersons working for department stores in Daegu and Pohang. A total of 337 responses were complete and usable questionnaires. Data were tested through factor analysis, t-test, ANOVA, and regression analysis, using SPSS 21.0. The results of this study are as follows: First, six factors were extracted from job related variables (positive reaction of customer, career of salespeople, interpersonal relations, influence of salesperson, customer complaints, overwork). Second, there were significant differences in job related variables, job satisfaction, and job performance according to age, marital status, average monthly income, work period, and job position. Third, regression analysis between job related variables and job satisfaction showed that the most influential predictor of job satisfaction was career of salespeople, followed by interpersonal relations, influence of salesperson, customer complaints, and overwork. The most influential predictor between job related variables and job performance was positive reaction of customer, followed by career of salespeople, interpersonal relations, influence of salesperson, and customer complaints.