Join our team European XFEL is an international non-profit company located in the Hamburg area in Germany. It operates a 3.4 km-long X-ray laser, which produces X-rays of unique quality for studies in physics, chemistry, the life sciences, materials research and other disciplines. The diverse scientific facilities at European XFEL enable scientists from across the globe to carry out a wide range of experimental techniques.Intense XFEL pulses can trigger strong excitations in the electronic subsystems of condensed matter on femtosecond (fs) or even sub-fs timescales. This can bring solid targets into the warm dense matter (WDM) state, a state at the frontier between a plasma and a condensed phase that is key to astrophysics, pl