This study investigates determinants of employee job satisfaction at Arada sub city administrations. The target populations for the study were supervisory and non- supervisory employees of Arda sub-city administrations. The study examines a total population of 309 employees of the sub-city administration workers. Correlation and regression analysis were used to analyze the gathered data with SPSS (26 version) software. Pay and benefit, working environment, promotional opportunities, and relation with supervisor and trust in are considered as variables that affect job satisfaction of employees. For the study both primary and secondary data were used. The primary data for the study were collected by using questionnaire. Secondary data were collected through different source (like from the ministry of federal public service agency/from Arada sub-city administration and by using article and journals. A self-administered questionnaire was used for data collection from the employees of selected sub city administration in Addis Ababa area using random and systematic sampling technique. Out of 309 questionnaires distributed, 281 were collected and used for further analysis. The results showed significant positive association between pay and benefit, working environment, promotion opportunities, relation with supervisor ,trust in leaders and job satisfaction. Therefore, itâ€™s forwarded for the top management of the sub city administration to improve the effect the above variables in their respective organization. Finally the study put some points on assessment of the employee satisfaction and to outline its relevancy. The study is carried out at Arada sub city administration in Addis Ababa Ethiopia.