Problem Statement; Job satisfaction is associated with positive outcomes at work and in certain other aspects of life. Job satisfaction is regarded as an important indicator to determine the levels of career success and accomplishment. In the past decades, job satisfaction among the worker in helping professions has received little attention in Slovakia. Purpose of Study; The purpose of this study was to adapt JSS to Slovak language so that it can be used in Slovakia especially on helping personnel in social care. In this study, we aimed to confirm its factor structure, analyse its convergent and discriminant validity, and internal consistency. Methods; The 36-item Job Satisfaction Scale (JSS, Spector, 1985) was used to measure job satisfaction. This scale was translated into Slovak language using forward translation, assessment of forward translation, backward translation, assessment of backward translation, and local meeting with professionals. External students of social work and workers who practiced helping professions in social care participated in the research and completed Job Satisfaction Scale, Professional Quality of Life Scale (Stamm (2010), Life Orientation Test – Revised (Scheier, Carver, & Bridges (1994), Scales on Well-Being (SEHP) (Dzuka, & Dalbert, 2002). The internal consistency and discriminant validity of JSS was examined. Findings and Results; It was revealed that higher level of job satisfaction was linked with optimism, higher frequency of experiencing positive emotions and lower frequency of experiencing negative emotions. Conclusions; The preliminary results confirmed the factor structure of JSS. Description of the psychometric properties of the Slovak version of the Job Satisfaction Scale and the interpretation of the results will be discussed in the paper. Keywords: Job satisfaction; helping professions; validity; reliability