The Director of Center for Theoretical Physics PAN announces a competition for one position of doctoral fellow in computational cosmology at Center for Theoretical Physics (CFT) PAN, Warsaw, Poland, within the framework of the research project SONATA 19 PAIRS: Pairwise velocities in the context of a cosmic network funded by the National Science Center (project registration number: 2023/51/D/ST9/02919). The project manager is Dr. Mariana Jaber. Recruitment includes admission to the GeoPlanet Doctoral School, affiliated with Center for Theoretical Physics PAN.