The study investigated the extent of fulfillment of employment responsibilities between the management and employees of PHCN, areas of employment responsibilities, with a view to ascertaining how this influenced the job performance of employees of PHCN, Ibadan Zone. The descriptive survey design was used for the study. A total of 40 management staff and 240 employees were selected using simple random sampling technique. Data for the study were collected using two instruments namely “Employment Responsibilities Inventory” (ERI), and Employees’ Job Performance Scale” (EJPS). The reliability of the instruments was confirmed with the Cronbach Alpha and Split-half results yielded ERI = 0.82 and 0.76 and EJPS = 0.88 and 0.83 respectively. The data collected were analysed using simple percentage, mean, standard deviation and t-test statistical analysis. The results showed that provision of safe working environment (X=3,12, S.D = 0.69) and pay increase to maintain standards of living (X=2.99, S.D. = 0.77) were the major responsibilities required by the employees from their management. It was showed that 61.3% of the employees reported that their management rarely discharged their employment responsibilities to the workers. Also, it was revealed that there was a significant effect of employment responsibilities on employees’ job performance (t-test = 128.9, p < 0.05). It thus concluded that poor fulfillment of employment responsibilities has greatly affected the productivity of employees of PHCN, Ibadan Zone.