In spite of its obligation-based nature, the contractual employment relationship of university teachers still has some properties that make it similar to the structure of a public law service relationship. Here, the specificity of the employment of university teachers is determined by the elements of content of their employment relationship that are closely linked to the realisation of the government’s duties related to science and higher education. The different employment status of university teachers is in fact a heterogeneous solution, where the obligation-based nature of the employment relationship is complemented with elements that are characteristic for public law service relationships.