The Workforce for Digital Economy Federal Project is aimed at developing professional competencies in the field of cross-cutting digital technologies. Digital economy competences depend on the requirements of potential employers, as well as on those of society, state, and labor market. The article introduces the definition of cross-cutting digital competences and describes their basic, personal, and professional components. The author constructed a pedagogical model of developing cross-cutting digital competences in students of supplementary higher education. The model includes goals, objectives, pedagogical principles, internal and external factors, content components, organizational foundations, and pedagogical conditions.