The article proposes a logically linked system of indicators for assessing the employees’ competitiveness in the process of qualification upgrading. It was developed by the authors on the basis of a sociological study conducted by using the expert survey method. The survey has confirmed the main study hypothesis that there is the necessity to create tools for a comprehensive employees’ competitiveness assessment in order to increase the social and economic sustainability in the territories. Sustainable development can be achieved only by the effective management of the labour force competitiveness growth including in the training process. Criteria that characterize various elements of employee’ competitiveness are identified. The indicators’ calculating algorithm based on the quantitative and qualitative workers’ characteristics is selected among the many methods to assess their competitiveness. The algorithm provides the transformation of employee’s qualitative competitiveness characteristics into quantitative ones. The main provisions of employee’s competitiveness growth target model in the professional development process are presented in addition.