28.10.2025 Postdoctoral Position in Numerical Relativity and Fundamental Physics at the University of Illinois Urbana-Champaign The University of Illinois Urbana-Champaign is inviting applications for a postdoctoral position in numerical relativity and fundamental physics. The successful candidate will work with Prof. Helvi Witek and her team, and they will have the opportunity to collaborate on the Einstein Toolkit/CarpetX software framework. Applicant should submit their application package: (1) a cover letter, (2) a curriculum vitae, including a list of publications, (3) a research statement (limited to 3 pages, 1 inch margin, 11-12pt) containing a summary of previous and current research, and future research plans, (4) contact information for three (3) referees who…

21.10.2025 Postdoctoral positions in Computational Relativistic Astrophysics division at the MPI for Gravitational Physics in Potsdam The “Computational Relativistic Astrophysics” division at the Max Planck Institute for Gravitational Physics (the Albert Einstein Institute) in Potsdam led by Masaru Shibata (director) announces the opening of postdoc appointments. Each available postdoctoral position will be for a duration of 2—3 years. The „Computational Relativistic Astrophysics“ division is currently composed of two group leaders (Kenta Kiuchi, Kyohei Kawaguchi), 1 senior scientist (Takami Kuroda), and several postdoc researchers and students, and focuses on several research topics in relativistic astrophysics including neutron star mergers, collapsars, nucleosynthesis, stellar core collapse and explosion, formation and evolution of very…

21.10.2025 Postdocs on GWs and gravitational lensing at IFT, Madrid IFT (Madrid, Spain) invites applications for 1–2 postdoctoral positions in gravitational waves and gravitational lensing, funded by CSIC-MAX and “Atracción de Talento” grants. The positions will start in October 2026 or later. The initial appointment is for two years, with possible extension depending on performance and available funding. Review of applications will begin on December 1 and continue until the positions are filled. Read more

21.10.2025 Postdoc position in experimental GW physics at the Gravity Exploration Institute, Cardiff The Gravity Exploration Institute at Cardiff University is seeking a postdoc (called ‚research associate‘ in the UK) in gravitational-wave experimentation and instrument simulation. Closing date for the application is 13 the November 2026. The post will be focused on a new optical calibration scheme for gravitational-wave detectors and on modeling thermal behavior of optics and sensing in gravitational-wave detectors. Part of the work will be developed on our world-leading table-top experiment, and the candidate is also foreseen to spend some time at the LIGO sites. Read more

17.10.2025 Research assistant in the field of theoretical physics/gravitation theory in Jena The Institute of Theoretical Physics at the Faculty of Physics and Astronomy has a vacancy for Research assistant in the field of theoretical physics/gravitation Theory. It is part-time positions at 50% (20 hours per week), limited to 3 years. The Gravitation Theory Working Group investigates questions relating to general relativity theory, particularly in the areas of gravitational waves, relativistic astrophysics, and numerical methods. submit your detailed written application by November 15, 2025, but applications will be considered until the positions are filled. Read more

16.10.2025 LIGO Scientific Collaboration Postdoctoral Position in the CGCA at UWM The Leonard E. Parker Center for Gravitation, Cosmology, and Astrophysics (CGCA) at the University of Wisconsin-Milwaukee (UWM) invites applications for a postdoctoral position working with Prof. Brady and Prof. Creighton on research in gravitational wave physics and astronomy within the LIGO Scientific Collaboration. The initial appointment is for one year, with renewal for a second (and, in most cases, a third) year contingent on continued funding and satisfactory performance. This position includes competitive salary and excellent fringe benefits. Applicants should have a PhD in physics, astrophysics, or a related field. eview of applications will begin on 23 January 2026.…

14.10.2025 Postdoc position (3 years) in Madrid We invite applications for a 3-year postdoctoral research position in the field of cosmology and gravitational wave data analysis. The successful candidate will join the Instituto de Estructura de la Materia (IEM – CSIC) in Madrid to work with Dr. Mauro Pieroni and Dr. Jesús Torrado. The proposed starting date is October 1st, 2026. The research focus is the development and application of advanced inference techniques to extract cosmological and astrophysical information from gravitational wave observations. Specific areas of interest include Bayesian methodologies (hierarchical modelling, classical and machine-learning approaches), synergies between gravitational waves and other cosmological probes, and theoretical and computational developments in…

14.10.2025 Two postdoc positions at Syracuse University Syracuse University is seeking two gravitational-wave experimentalist postdocs. The positions begin on or around January 1, 2026. Postdoc in High Power Laser Applications under Professor Craig Cahillane, who is working on building a ultra-high power photoneutralization cavity for applications in nuclear fusion and gravitational wave detectors. Postdoc in Quantum Optics under Professor Georgia Mansell, who is working on understanding the interactions of squeezed light with complex interferometers, as well as building an electrostatic violin mode damper for Advanced LIGO. Both are involved in the optical design of Cosmic Explorer, the United States‘ third generation gravitational wave observatory. Open until filled.

09.10.2025 PhD Program in Astronomy and Astrophysics at Leiden University Leiden Observatory invites applications for approximately 6-10 new PhD positions. The four-year PhD program consists mostly of research under the supervision of one or more faculty members. Positions are available in most of the research areas in which the Observatory is active. These include galaxy formation and evolution, stars and planetary systems, computational astrophysics, high energy astrophysics, and instrumentation. More information about research at Leiden Observatory can be found here. Application deadline: November 15th, 2025. Read more

06.10.2025 PhD and Postdoctoral positions at GRAPPA University of Amsterdam We invite applications for one or more 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, University of Amsterdam. Application deadline: December 1st, 2025.PhD positions — Apply via AcademicJobsOnline (#30677):https://academicjobsonline.org/ajo/jobs/30677Postdoctoral positions — Apply via AcademicJobsOnline (#30676):https://academicjobsonline.org/ajo/jobs/30676