This research fellowship in the field of quantum sensing will be undertaken in both the ESA Directorate of Technology, Engineering and Quality (D/TEC) and the Directorate of Earth Observation Programmes (D/EOP). In this way, as a Research Fellow you will benefit from the blue-sky, theoretical focus of the Advanced Concepts Team within D/TEC at ESTEC during your first year, transferring in your second year to the D/EOP Future Missions Division (EOP-FM) to enable the practical application of your research.