The particle physics programme of DESY includes strong contributions to the LHC experiments at CERN and the preparation of future experiments. The experimental programme is enhanced by collaboration with a strong theory group. The DESY ATLAS group is involved in data analyses focusing on W and Z production, Higgs, top quark and Beyond Standard Model physics. In addition the group is involved in the operation of the ATLAS detector and developments for future upgrades, such as the ATLAS silicon strip tracker for the High Luminosity LHC. A new Emmy Noether group within the ATLAS group will be addressing limitations to the measurement of total Higgs boson decay rates by scrutinizing some of the foundational assumptions underlying these measurements and identifying areas where these assumptions can be reevaluated or relaxed. We are Hiring a postdoc to join the new Emmy Noether group and contribute to these measurements.