Università di Milano Bicocca is currently seeking to fill at least two postdoctoral research positions with highly qualified individuals interested in pursuing research in the fields gravitational wave astrophysics, with a particular focus on massive black hole binaries.The successful candidates will join Prof. Alberto Sesana in forming the core team of 'B Massive', an ERC CoG funded project aimed at tackling all the facets of the astrophysics of massive black hole binaries.We are particularly looking for candidates with strong background either in numerical (N-body and/or hydro) simulations of massive black holes binaries and their galaxy hosts or in pulsar timing observations, data analysis and inference. But candidates with relevant expertise in all aspects of massive black hole binary theory and observations, gravitational wave data analysis at large and numerical simulations are warmly welcomed to apply.Appointments are expected to start as soon as possible but certainly no later than fall 2020. The ERC funding guarantees a generous salary, competitive with the highest European standards for this type of positions.The Bicocca astro group has a strong expertise in massive black hole astrophysics, dynamics and gravitational waves (Prof. Monica Colpi, Prof. Massimo Dotti, Prof. Alberto Sesana and visiting Prof. Francesco Haardt), relativistic numerical simulations of compact objects (Prof. Bruno Giacomazzo), observations of high redshift galaxies and black holes (Prof. Michele Fumagalli, to join the group in 2020). It is a lively group supporting a number of postdocs and PhD students. It also have tight connections with the observatories of Brera and Merate. It is located close to the centre of Milan, the most lively and international city in Italy, 1h away from the beautiful Como Lake and the stunning Alps.Candidates must have a PhD degree in physics, astronomy or a related discipline. Applications should consist of a cover letter, a brief statement of research interests, a curriculum vitae including publication list, and at least three letters of recommendation. All material should be sent electronically as soon as possible to the attention of Prof. Alberto Sesana to the email address alberto.sesana at unimib.it, by October 15, 2019.