The relevance of the study is associated with the need to analyze the changing labor actions of education leaders and teachers in connection with the organization of the analysis of educational data accumulated by students in the digital educational environment. This, in turn, actualizes the need for the development of competencies in the analysis of educational data for a reasonable organization of human development and education. In the context of the digital transformation of education, the development of digital educational platforms, the development of digital services for assessing the quality of education, monitoring education, the issues of the methodology of data analysis and their competent application in pedagogical and managerial practice are being actualized. The article examines how educational analytics is used in the practice of schools, what problems educational leaders experience in pedagogy when working with data, what data sources they use. It was studied: what competencies are necessary for a teacher and the head of an educational organization in order to organize evidence-based development of education based on data. Leading research methods: structural and functional analysis, interviewing, polling, systematization, ranking, statistical analysis. The article summarizes the results of a study of the changing labor functions of teachers in the context of the digitalization of education, the competencies of teachers and managers in the application of data analysis in educational practice: digital competencies (digital competencies), data analysis competencies (data competencies), competencies for organizing development based on data (competence of a data-driven development organization). The problem is revealed: how the methodology and labor functions of teachers in the organization of education change based on the analysis of data: educational results, motivational choices of training profiles, levels of difficulty of educational tasks, topics of design and research work of schoolchildren, etc. Expansion of labor actions of teachers and heads of educational organizations and competences that ensure the implementation of labor actions are investigated. The development of data-competencies of teachers and education leaders for the evidence-based development of education and a person is analyzed. The research results presented in the article contribute to the theory and practice of teacher education, education management, as well as to the methodology of data science and the practice of its application in the field of education.