20.11.2025 Simons Postdoctoral Fellowship at Montana State University Montana State University invites applications for a Simons Postdoctoral Fellowship position in Strong Gravity and Black Holes. The successful candidate will join a global network of Simons Postdoctoral Fellows in Strong Gravity and Black Holes that are part of the Simons-BHSG. This new, multidisciplinary and multinational collaboration explores the non-linear and dynamical nature of strong gravity and black holes in and beyond Albert Einstein’s theory of general relativity through gravitational observations. The collaboration brings together mathematicians, physicists, numerical experts and data analysts. Screening of applicants begins December 15, 2025. Read more

12.11.2025 Postdoctoral position in Gravitational-Wave Physics at Imperial College London Applications are invited for a Research Associate position in the Abdus Salam Centre for Theoretical Physics at Imperial College London. The successful candidate will work with Dr Andrea Mitridate on projects at the interface between gravitational-wave searches –with an emphasis on pulsar timing arrays observations– and physics beyond the Standard Model. Application deadline: December 5th 2025. Read more

12.11.2025 Postdoctoral position in theoretical cosmology and Gravitation at APC Paris 2-year postdoctoral position in theoretical cosmology and gravitation, starting in September 2026. The position is funded by the HERMES project, devoted to multi-messengers of the Earth and the Universe. More specifically, the aim of the research project is to explore theories of modified gravity on cosmological scales and identify how existing or future probes, using electromagnetic or gravitational wave signals, will be able to constrain these models. In this perspective, the postdoctoral researcher will be part of the theory team, but will also be expected to engage into collaborative work with the gravitation and/or the cosmology teams at APC.…

11.11.2025 Postdoc position at the University of Texas Rio Grande Valley The South Texas Space Science Institute (STSSI) at the University of Texas Rio Grande Valley (UTRGV) in Brownsville, TX announces the opening of one postdoctoral appointment in space science research, broadly defined. The successful candidate is expected to actively contribute to and expand the current research activities at UTRGV in space science technology development, gravitational-wave (GW) astronomy, optical and radio astronomy, or experimental GW detector development. The STSSI is an interdisciplinary institute with active research in various areas of space and astrophysical science (https://www.utrgv.edu/stssi/). We are particularly interested in hiring creative and motivated candidates who are at ease working…

11.11.2025 Postdoctoral Positions in Gravitational Waves Physics at IFAE IFAE welcomes applications from outstanding candidates for two postdoctoral positions:Position 1 – The candidate will be expected to play a central role in the group’s activities in both data analysis and detector characterization. The candidate will implement new methods for compact binary searches and/or parameter estimation, including the use of machine learning/AI.Position 2 – The candidate will be expected to play a central role in the group’s detector-related activities including LIGO-Virgo detector characterization, optical simulation studies for stray light modeling in existing and future ground-based detectors, and the active monitoring of the stray light inside the optical cavities with new photo…

11.11.2025 PhD and Postdoctoral positions in Astroparticle Physics at GRAPPA in Amsterdam We invite applications for one or more PhD and postdoctoral positions in general relativity, gravitational wave astrophysics, and dark matter phenomenology, funded by the ERC Advanced Grant “De Tenebris” (PI: Prof. Gianfranco Bertone) and hosted at GRAPPA. GRAPPA is the center of excellence in gravitation and astroparticle physics at the University of Amsterdam, located at Amsterdam Science Park. We offer a vibrant research environment with strong ties to major experimental collaborations (including LIGO/Virgo/KAGRA, LISA, and Einstein Telescope). Application deadline: December 1st 2025.PhD positions — Apply via AcademicJobsOnline (#30677)Postdoctoral positions — Apply via AcademicJobsOnline (#30676)

11.11.2025 PhD student – experimental astroparticle Physics at the University of Zurich The group of Professor Soares-Santos, at the University of Zurich (UZH), invites applications for a PhD student position. The group is engaged in data analysis, instrumentation, software development, and operations in state-of-the-art experiments in the field of cosmology with cosmic surveys and gravitational waves. In addition to carrying out some of the most precise cosmological measurements from galaxy clustering and weak lensing, we have led the most comprehensive searches for the electromagnetic (EM) counterparts of gravitational-wave (GW) events and contributed to the first GW-EM multi-messenger discovery. We are currently leading a multi-messenger cosmology effort, combining GW standard sirens…

11.11.2025 Software Engineer for the LISA Space Mission at ETH Zurich The engineer’s primary goal will be to contribute software and technical support to the Swiss LISA Data Center, managed by Dr. Arianna Renzini, facilitating the scientific success of the LISA mission. We are considering different profiles for this position, including research scientists with a strong background in software development, and computer scientists/engineers with accomplishments in the context of astrophysical/space-science data processing. The deadline for applications is November 30th and we will continue accepting applications until the position is filled. For any inquiries about the position please contact Arianna Renzini (arenzini(at)phys.ethz.ch). Read more

11.11.2025 EoI for ERC Funded Postdoctoral Position in Theoretical Particle Physics, Theoretical Cosmology/Gravitation at IFAE Barcelona The theory group of IFAE (Barcelona, Spain) at the UAB Campus (Barcelona), invites Expressions of Interest for a postdoctoral research position in theoretical developments for searches of high-frequency gravitational waves. The appointment will be for a full-time position of two to three years. The position can start in Fall 2026. The application deadline will be December 31st, 2025. This position will be funded by the ERC-2024-SyG GravNet 101167211 (GravNet: A Global Network for the Search for High Frequency Gravitational Waves). GravNet will be dedicated to optimize the searches of high-frequency gravitational waves in a…

05.11.2025 Postdoc positions at ICTP in Trieste Several postdoctoral positions will be available in ICTP’s High Energy, Cosmology and Astroparticle Physics (HECAP) section with an expected starting date in October 2026. Appointments will be for 2+1 years. Postdocs working on cosmology and astroparticle physics will also participate in the initiatives of the IFPU (Institute for the Fundamental Physics of the Universe), a collaboration between ICTP, the International School for Advanced Studies (SISSA), the Trieste Observatory and INFN. For full consideration applications should be sent by 15 December 2025. Read more