The Astrophysical and Cosmological Relativity Department, led by Alessandra Buonanno, at the Max Planck Institute for Gravitational Physics (Albert Einstein Institute) in Potsdam, in collaboration with the Lichtenberg Group for History and Philosophy of Physics at the University of Bonn, led by Dennis Lehmkuhl, and the Department I and Max Planck Research Group 'Final Theory Program" at the Max Planck Institute for History of Science, led by Jürgen Renn and Alexander Blum, respectively, is seeking a PhD student (m/f/d) and a Postdoctoral Fellow (m/f/d).