Applicants for the positions should have a PhD in astronomy or related fields. The successful candidates will join the team in Purple Mountain Observatory and work on data reduction and analysis for the time-domain imaging surveys with the USTC-PMO 2.5 meter wide-field survey telescope (WFST). Experience in large imaging surveys and/or machine learning is desirable. The successful candidates will be expected to work in star formation, Galactic Archaeology, Galactic structure using the (public and oncoming) survey data.