The problem of effective use of human resources represents an extremely difficult socio-economic challenge, therefore, currently there has been a marked increase in interest in the evaluation of human capital as the most important resource that provides competitive advantages for modern companies in every field. The aim of this study is to assess human capital of the company’s employees on the basis of expert approach using a competence model and aggregated indices randomization method. The article clarifies the concept of human capital as the basic structural element of intellectual capital, presents a brief overview of the most common models and methods of human capital assessment and demonstrates the necessity of realization of a competence-based approach in the evaluation of the company’s employees and personnel segmentation. The possibility and the advantage of application of the aggregated indices randomization method (AIRM) to produce a comprehensive assessment of the level of competence of employees of the international division of a Russian company in the field of IT industry is demonstrated. The division based in St. Petersburg is engaged in the development of custom software and modernization of corporate information systems in the financial industry, telecommunications, online-travel, mobile development, Internet projects and media. This study employs mathematical methods (aggregated indices randomization method, expert score), comparative methods (analysis, synthesis, classification), as well as the general logic methods of scientific concept construction. The scientific novelty of the research lies in the fact that, based on existing research, the authors propose a new instrumental technique, realizing the algorithms for assessing the human capital of the company’s employees, the results of which reveal the priorities in the field of recruitment, development and motivation of the staff, thereby implementing a rational approach to using human and financial resources of the company. The practical significance of the study lies in the development of methodological tools for human capital assessment that can be used for managing other information technology companies.