Introduction. In the conditions of the modern globalization, one of the most significant indicators of competitiveness of the universities is the academic mobility of students, graduate students, teachers and research associates that implies their free and competent enough foreign language skills, first of all English. Yet, until recently, comparatively little attention has been paid to foreign language skills of the Russian academic teaching staff. However, in recent years, with regard to the process acceleration of internationalization of the higher education to provide own effective functioning and remain a demanded one in education and training market, domestic higher education institutions are forced to quickly fill in the gaps of foreign language knowledge among academic teaching staff. The aim of this article is to analyse and describe the tuition outcomes for academic teaching staff based on the official exam results from Cambridge English Language Assessment for three years (2015–2017). Methodology and research methods. The research, which is grounded in interdisciplinary approach and lies at the intersection of psychology, linguistics and pedagogics, was conducted on the basis of the statistical analysis and generalization of mean scores of English language testing results, taking into account qualitative and quantitative standards of speech skills: reading, writing, listening, speaking and use of English (for levels B2, C1). Results and scientific novelty. The essential strengthening and development of the Cambridge English system for level increase of proficiency in English among the Russian academic teaching staff is proved. The data of external peer evaluation provided by exam centre Cambridge English Language Assessment including the foreign language training results of academic teaching staff are analysed. The results obtained show that contrary to the wide-spread opinion that productive skills (speaking and writing) take longer to develop and are difficult to acquire, university teachers demonstrate a different trend: the worst developed skill is listening, then comes reading, writing and speaking. Practical significance. The research provided in the article gives additional understanding of specifics of English training for adults, namely academic teaching staff, and features of their cognitive age processes when foreign language skills acquisition. The materials of the presented publication will be useful to teachers of a foreign language and higher education institution authorities while organizing additional learning foreign languages education in the conditions of artificial bilingualism, also, when teaching programmes updating for the purpose of strengthening of its efficiency.