...officially in two different educational institutions?
The conditions of part-time work are currently defined by Art. 1021 of the Criminal Code. A part-time employee can perform such work at the same or another enterprise, institution, organization or individual entrepreneur.
The terms of payment of pedagogical workers of institutions and educational institutions are determined by the Instruction on the procedure for calculating the wages of education workers, which was approved by the order of the Ministry of Education and Culture of April 15, 1993 No. 102.