Palacky University in Olomouc, Czech Republic, announces a post-doc position in theory of free-space quantum communication, funded within a European Space Agency project. The research will be applied to satellite-based quantum key distribution and experimental-theoretical collaboration with the leading experimental groups in the field is foreseen. The position is in the Quantum Communications sub-group, led by Dr. Vladyslav Usenko, within the Quantum Optics Theory group of prof. Radim Filip.