As part of the STEP UP! Fellowship programme run on a 2-year cycle, the Deutscher Wetterdienst awards fellowships to early career scientists to work on a research project during a guest stay at the European Centre for Medium-range Weather Forecasts (ECMWF) at the ECMWF site in Bonn. The Early Career Fellows will work together with experienced scientists from different teams of the ECMWF and with CESOC.