This study examined the relationship between personality dimensions and supervisory ratings of job performance, in a sales context in Sweden. A sample of 34 telesales workers, employed at two major telecom companies, completed the NEO PI-3 (McCrae & Costa, 2010). As hypothesized, it was found that Extroversion, Conscientiousness, and Neuroticism correlated moderately with job performance. In line with past research, this suggests that individuals, who display high levels of Extroversion and Conscientiousness, as well as low levels of Neuroticism, perform better in sales related occupations. Unlike hypothesized, no correlation was found between job performance and Agreeableness and Openness to Experience. Additional computations indicated the importance of specific sub dimensions of Extroversion and Conscientiousness in respect to job performance. Practical implications in respect to recruitment and directions of future research are discussed.