The positions are on the interface between algorithmic research with respect to state-of-the-art machine learning/optimization algorithms and its application to advanced free electron lasers and storage rings such as FLASH, the European XFEL and PETRA IV in Germany, LCLS and SPEAR at the SLAC National Accelerator Laboratory in the USA. We are seeking for two highly motivated candidates who are bringing together these two fields in order to improve the performance of the free electron lasers and storage rings.