Tag: postdoctoral position

This postdoctoral position will focus on testing dark energy and modified gravity models with cosmological observations. Two aspects of this are of interest for this position, candidates are welcome via either route:

i) Linking simulations of large-scale structure (LSS) in modified gravity theories to observables relevant to stage IV surveys. Relevant skills include: experience with running and handling outputs from numerical simulations of LSS. Experience constructing emulators. Experience with forecasting and/or data analysis of galaxy clustering and weak lensing observables. Experience with HOD modelling. Other experience in constraining gravity with LSS will be considered.

ii) Testing gravity through the association of gravitational waves (GWs) and galaxies, e.g. dark sirens, GW-galaxy cross-correlation. Relevant skills include: experience with dark sirens software pipelines (e.g. gwcosmo, IcaroGW, CHIMERA…). Experience with GW x LSS cross-correlation computations. Experience with forecasting for 3G GW detectors. Other experience in GW cosmology will be considered.

Application deadline: 02/01/2026

The successful candidate will join the research team of Prof. Tessa Baker, and contribute to the ERC-funded SHADE project. Queries on the post can be directed to tessa.baker@port.ac.uk.

The working pattern for this post is full-time. Whilst there is a need to be in Portsmouth a few days a week, hybrid working is available for this role.

The interviews are currently anticipated to be held on 19 January 2025.

This appointment is a fixed-term contract for 12 months.

Applications (application form, CV, publication list and research proposal for the fellowship) should be submitted by the closing date. Applicants should also arrange for three letters of recommendation to be sent by email to icg-recruitment(at)port.ac.uk, to arrive by the same date.

Please find here full details.

University of Padova is very happy to announce one two-year postdoctoral position within a INFN InDark funding at Padova, Focusing on "Primordial Gravitational Waves from Inflation and non-Gaussianity in the Era of Next-Generation Cosmological Missions". The deadline for application is December 15th.

Please find here full details.

The Research Group in Theoretical Cosmology and Gravity at Swansea University (UK) welcomes expressions of interest from highly motivated candidates interested in postdoctoral fellowship opportunities in theoretical cosmology and gravitational-wave physics, broadly defined. We also welcome visiting scientists interested in short- or medium-term research visits and collaborations. We seek creative and ambitious researchers eager to join a vibrant, internationally recognised team working at the frontiers of cosmology and gravity. Applicants should hold (or soon obtain) their own funding or plan to apply for competitive fellowships. Application deadline: December 12th 2025.

Examples include:

Royal Commission 1851 Research Fellowship

(deadline: 13 January 2026)

Leverhulme Trust Early Career Fellowship

(deadline: 19 February 2026)

Daphne Jackson Fellowships

(no fixed deadline)

Our group provides guidance and mentorship during the preparation of fellowship applications, including identifying funding schemes that best match each candidate’s profile.

About the Group

The group—led by Azadeh Maleknejad, Gianmassimo Tasinato, and Ivonne Zavala—works on cutting-edge research in cosmology, gravitational-wave science, and quantum field theory in curved spacetimes. We emphasise connecting theoretical ideas with phenomenology and experiment.

We are part of the Centre for Quantum Fields and Gravity at Swansea University, a hub for research in string theory, QCD, and AI for fundamental physics. The group includes postdoctoral researchers and several PhD students, fostering an international, collaborative, and supportive environment.

We are active members of major international collaborations, including:

Einstein Telescope, LISA, NANOGrav, SKA, and Euclid.

Research Areas of Interest

Topics include (but are not limited to):

• Early-Universe Cosmology & QFT in Curved Spacetimes: quantum origins of the Universe, fundamental interactions, and their observational signatures.
• Cosmological Gravitational-Wave Backgrounds: theoretical modelling, data analysis, and links to physics beyond the Standard Model.
• Testing Gravity with Cosmology and GW Observations: using PTA data, LISA, the Einstein Telescope, SKA, and Euclid to probe gravity across scales.
• Machine Learning for Cosmology: applying AI and ML to reconstruct dark-universe physics from current and future data sets.

Candidate Profile

• PhD in astrophysics, cosmology, gravitational-wave physics, high-energy physics, or general relativity.
• Demonstrated ability for independent research and a strong publication record (advantageous for fellowship applications).
• Strong communication skills and motivation to develop a competitive fellowship proposal.
• We particularly welcome applications from groups under-represented in physics.

What We Offer

• Excellent research environment: access to a dynamic research community, mentorship from senior faculty, and participation in world-leading international collaborations (LISA, ET, NANOGrav, etc.).
• Collaborative atmosphere: regular seminars, group meetings, and opportunities to host visitors and attend international workshops.
• Quality of life: Swansea offers a beautiful coastal setting, affordable living, and a welcoming academic community supportive of early-career researchers.

Funding and Application Process

• Candidates are strongly encouraged to identify suitable funding schemes and indicate these in their application.
• Applications will be reviewed on a rolling basis until the positions are filled.
• Initial review deadline: 12 December 2025.
• Please send the following documents:
• cover letter (including intended funding scheme and preferred start date)
• CV
• brief research proposal (2 pages)
• contact details of two referees

Please find here details

The Cornell Center for Astrophysics and Planetary Science at Cornell University expects to have an opening for a Postdoctoral Associate in numerical relativity starting in September 2026. The
position requires a Ph.D. and experience in numerical relativity or computational physics. All materials should be received by December 17, 2025.

The Cornell Relativity Group consists of Saul Teukolsky, Eanna
Flanagan, Nils Deppe, Larry Kidder and research associates Mike
Boyle and Will Throwe. There will also be opportunities to interact
with the Theoretical Astrophysics Group, including Rachel Bean,
David Chernoff, Dong Lai, and Ira Wasserman.

Applicants should submit a cover letter, a CV (including
list of publications) and a brief (1-3 pages) description
of research interests and should arrange for three letters
of reference to be submitted through Academic Jobs Online at

https://academicjobsonline.org/ajo/jobs/31243

The ET/Virgo instrument science group at the Trento Institute for Fundamental Physics (TIFPA) and at the University of Trento is seeking candidates interested in participating in a call for a 2-years post-doc position to start at the end of 2026, with a gross salary of 36000 euros/year (net salary of about 2500 euros/month).

The deadline for the call is December 15th, 2025.

The group is active in quantum vacuum squeezing, laser mode-matching and stray light modeling and mitigation.

If you are interested or know someone that could be, please contact giacomo.ciani(at)unitn.it as soon as possible to discuss reciprocal research interests and prepare the application.

Several postdoctoral positions funded by Prof David Mateos’ Advanced ERC Grant are now open at the Institute of Cosmos Sciences at the University of Barcelona (ICCUB). Selected candidates are expected to work with Profs David Mateos, Jorge Casalderrey-Solana and other members of the group on applications of Holography to Cosmology and Astrophysics, with a focus on Gravitational Waves. Application deadline: December 17th 2025.

Topics of interest include cosmological phase transitions, baryogenesis, neutron star mergers, spacetime singularities and holography with dynamical boundary gravity. Prior knowledge of holography is not required.

Faculty members at the ICCUB working on related topics include Pablo Bueno, Roberto Emparan, Bartomeu Fiol, Jaume Garriga, Cristiano Germani, Raul Jimenez, Raimon Luna, Javier Magan, Alessio Notari and Jorge Russo.

For information about research at the ICCUB visit http://icc.ub.edu

Appointments will begin in the Fall of 2026 for a period of 3 years. The deadline for applications is December 17th 2025.

The University of Barcelona is part of a group of European institutes with a centralized system of postdoctoral applications. Candidates should apply through the following website, choosing Barcelona as one of their preferred institutes:

https://academicjobsonline.org/ajo/JointPhysicsApplicat/JointPhysicsApplicat/JEPATHEP

Please find here full details.

“Combining Gravitational Wave Observations and Black Hole Studies for Cosmological Insights”
INFN is seeking candidates with broad expertise in gravitational waves, black hole perturbation theory, and/or cosmology. Potential research lines span from characterizing the quasi-normal mode spectrum of black holes to cosmological inference with gravitational waves (GWs) in synergy with multiple astrophysical probes. Candidates with an interdisciplinary background are particularly encouraged to apply unti December 15th 2025.

The gravitational theory group includes three staff members: Mariano Cadoni, Leonardo Modesto, and Riccardo Murgia, plus several graduate and undergraduate students. The successful candidate will be working within the Sardinian Gravitational Wave Science (SGWS) Community, in tight collaboration with the GW data analysis group at INFN and Cagliari University, and the GW group at GSSI L’Aquila.

Broad research topic: Gravitational Waves, Black Hole Physics, and Cosmology
Eligibility: Non-Italian citizens, or Italian citizens who, at the time of the application, hold a position in a foreign institution and have been continuously abroad for at least three years. They must have a PhD degree or must obtain their degree before the beginning of the fellowship.
Deadline for application: 15/12
Deadline for recommendation letters: 18/12
The successful candidate must start the fellowship not later than November 1th 2026. Fellows are initially appointed for one year but the fellowship can be extended to a second year. The annual gross salary is 36.000,00 €.
For further information send an e-mail to : mariano.cadoni@ca.infn.it
Applications must be submitted in electronic form through the website: https://reclutamento.dsi.infn.it
(Enter the Call number 28201 in the search field)

Please find here details.

We invite applications for a Simons Postdoctoral Fellowship position in Strong Gravity and Black Holes at Montana State University. Screening of applicants begins December 15, 2025.

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.

The successful candidate will conduct research on observational tests of strong gravity under the mentorship of Professor Neil Cornish. For full details, and to submit applications, please visit https://jobs.montana.edu/postings/49370.