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PhD position in GW instrumentation at ULiege

PhD position in GW instrumentation at University of Liège Precision Mechatronics Laboratory (PML) invites applications for a PhD position in gravitational wave instrumentation at University of Liège. PML is an active member of the LIGO Scientific Collaboration, and of the Einstein Telescope Collaboration. The group is coordinating ET-CRISTAL, a full-scale prototype of large cryogenic mirror, demonstrating sub-Hertz seismic isolation, and cryogenic cooling using purely radiative technology.
Application deadline May 30th, 2026.

The prototype is installed at the Space Center (CSL) of the University of Liège. University of Liège is a Belgian public university located at the heart of Europe in the cross-border region between the Netherlands and Germany, counting 11 faculties and nearly 30 000 students.

Capitalizing on this unique facility, the objective of this PhD is to develop an interferometric gradiometer that will be validated as a probe of Newtonian noise in the prototype. The project will be realized in close collaboration with the EPFL in Switzerland.

Applicants should hold a Master degree in engineering, physics or equivalent. The position is fully funded for a duration of four years and should ideally start on the 1st of September 2026. Applications should include a curriculum vitae, a personal motivation letter, and the name of three references. Applications should be sent by email to Prof. Christophe Collette (christophe.collette(at)uliege.be ) by the 30th of May 2026.

For more information:
ET-CRISTAL: https://www.etest-emr.eu
Precision Mechatronics Laboratory: https://www.pml.uliege.be
Liège Space Center: https://www.csl.uliege.be/cms/c_10241774/en/csl?id=c_102417
University of Liège https://www.uliege.be/cms/c_8699436/en/uliege

Please find here full details.

The RING project in Germany: 1 Postdoc and 14 PhD positions in Physics, Geophysics, Geodesy

we would like to draw your attention to the 4-year RING project recently funded by the German Research Foundation (extendable to 8 years). The project has strong overlap with gravitational wave detection research on instrumentation.

The project aims at pushing the sensitivity and stability limits of rotational motion sensing with ring laser technology into new realms using approaches from quantum optics and metrology. The ultimate goal is to enable ring laser observations as a complement to classic space-geodetic methods towards more precise, high-rate estimation of Earth Orientation Parameters (EOP). Furthermore, we plan to develop (trans-) portable ring lasers fit for weak, broadband 6 degree-of-freedom ground motion observations towards better understanding of atmosphere-solid Earth coupling (also relevant for seismic decoupling of gravitational wave detection facilities).

The project offers postdoctoral and PhD topics in laser physics, geodesy, geophysics, hydrology, and seismology. The successful candidates will be part of a multi-disciplinary research team at various institutions in Germany with excellent training and experimental facilities.

More information, links to the individual research projects and open positions can be found here:
https://www.ringlaser.de


Prof. Dr. Katharina Isleif
https://www.hsu-hh.de/karriere/wp-content/uploads/sites/658/2026/04/Reference-Number-MB-0926.pdf

Prof. Dr. Oliver Gerberding
https://www.physik.uni-hamburg.de/en/iexp/gruppe-gerberding/offene-stellen.html

PhD opportunity between Paris and Toulouse to work on tests of gravity with future gravitational wave observations

PhD position to work on tests of general relativity with next generation gravitational wave detectors such as LISA and the Einstein Telescope. This PhD opportunity is a joint project between the LUX (Laboratoire d’étude de l’Univers et des phénomènes eXtrêmes) in Paris and the L2IT (Laboratoire de 2 infinis - Toulouse) in Toulouse.
Application deadline: May 19th 2026.

Please find here full details.

GSSI PhD in Astroparticle Physics 2026 is now open

The Physics Division of the GSSI – Gran Sasso Science Institute (L’Aquila, Italy) is opening 10 PhD positions in Astroparticle Physics, starting in the Academic Year 2026/2027. 
Two additional PhD positions are offered through the FIS project Deep Loop Shaping for Gravitational-wave Detection, and another position through the AstroCent+ project on dark-matter searches with DarkSide-20k.

The research pursued by the Physics Division focuses on neutrinos, gravitational waves, dark matter detection, and cosmic rays.

The Gravitational-Wave Group is active in the LVK, ET, LGWA, and LISA collaborations. Its research activities are in instrument science, data analysis, waveform and population modelling, multi-messenger and transient astrophysics, stellar evolution and dynamics.

The applications must be submitted by May 28, 2026, 3:00 p.m. (Central European Time) through the online form available at the following link http://www.gssi.it/phd/ , where the call (both in Italian and English) can also be found.

If you have questions, please contact us:
Manuel Arca Sedda manuel.arcasedda(at)gssi.it
Marica Branchesi marica.branchesi(at)gssi.it
Jan Harms jan.harms(at)gssi.it
Antonio Perreca antonio.perreca(at)gssi.it
Andrea Maselli andrea.maselli(at)gssi.it
Gor Oganesyan gor.oganesyan(at)gssi.it

PhD Scholarships – Statistics, Astrophysics, Cosmology and Gravitational Wave Astronomy in New Zealand

The NZ Astrostatistics and General Relativity Group (NZ Gravity) is coordinating applications for several PhD scholarships within an interdisciplinary team to work on 
• interstellar objects, stellar populations, supernovae, large scale structure formation and ultralight dark matter, engaging with the Vera Rubin Observatory Legacy Survey of Space and Time (LSST) and
• gravitational wave astronomy and statistical data analysis for the Laser Interferometer Space Antenna (LISA) mission.

The cross-institutional research team spans astrophysics, cosmology, mathematics and statistics with members at five New Zealand universities as well as international collaborators within the Vera Rubin Observatory and the International LISA Consortium.

The LSST is a ten-year, wide-field astronomical survey designed to image the entire southern sky every few nights using a 3.2 gigapixel camera, creating a massive 200-petabyte dataset for studying dark energy and dark matter, mapping the Milky Way, exploring the transient optical sky, and identifying potentially hazardous near-Earth asteroids. The space-based gravitational wave mission LISA raises deep challenges regarding source modelling and numerical simulation and requires new statistical methodologies. We are seeking highly motivated and skilled students with a strong background in statistics, physics, mathematics or a related discipline, with sound computing skills and a keen interest in interdisciplinary research in gravitational wave science. All PhD and MSc candidates will have the opportunity to join the NZ Gravity Group, obtain academic support from an interdisciplinary supervisory team and will contribute to cutting-edge research for the LSST and the LISA mission. The PhD scholarships will be available from May 2026 and provide an annual (tax-free) stipend of NZ$35,000 plus tuition fees for three years. Starting dates are flexible throughout the year.

PhD Projects

More details about each of the PhD projects including the required skillsets and supervisors can be found here. Admissions decisions will be made by individual universities – please direct initial enquiries to the supervisors of specific projects that interest you or send general queries to
Professor Richard Easther (R.Easther(at)auckland.ac.nz) and
Professor Renate Meyer (Renate.Meyer(at)auckland.ac.nz).

PhD positions in the field of Gravitational-Waves Theory and Numerical Relativity in Jena

The Institute of Theoretical Physics at the Faculty of Physics and Astronomy has a vacancy for two
PhD positions in the field of
gravitational-waves and numerical relativity (theory)
commencing on August, 1. 2026
We offer a part-time position (50%, 20 hours per week)
The Gravitational-wave and Numerical relativity Working Group investigates questions relating to gravitational waves from compact binaries, relativistic and multimessenger astrophysics, and numerical methods for Einstein equations and relativistic fluids.

Your responsibilities:

  • Working on your own scientific qualification project (doctorate)
  • Conducting research projects in the field of gravitational theory with reference to gravitational-wave modeling, relativistic astrophysics and numerical relativity
  • Co-supervising bachelor’s and master’s students
  • Teaching in bachelor’s and master’s programs to the extent of 2 LVS

Your profile:

  • A completed master’s degree in physics with a thesis in theoretical physics and/or computational physics
  • We require in-depth knowledge of theoretical physics; knowledge of relativity theory is essential; Previous experience in the areas of gravitational-wave theory/modeling, multi-messenger astrophysics with compact objects, and/or astrophysical computer simulations is desirable
  • Ability to work independently and organizational skills

We offer:

  • Interesting work at an international level and participation in international conferences
  • A graduate academy for doctoral students
  • Remuneration based on the provisions of the Collective Agreement for the Public Sector of the Federal States (TV-L) at salary scale E13 50%, including a special annual payment in accordance with the collective agreement
  • 30 days of vacation per calendar year plus two days off on December 24 and 31An exciting/varied/interesting field of employment / Autonomous work at one of the largest employers in Thuringia / An exciting and varied scope of activities with creative freedom
  • A family-friendly working environment with a variety of offers for families: University Family Office ‘JUniFamilie’ and flexible childcare (‘JUniKinder)

The position is a fixed-term position initially limited for three years; an extension is possible.

Candidates with severe disabilities will be given preference in the case of equal qualifications and suitability.

Are you eager to work for us? Then apply by May 1st, 2026 using our online form.

Please find here full details.

ESA Archival Research Visitor Programme Madrid, Noordwijk

To increase the scientific return from its space science missions, ESA welcomes applications from scientists interested in pursuing research based on publicly available data in the ESA Space Science Archives. The Archives host data from all current and past ESA space science missions in astronomy, planetary science, and heliophysics.

The ESA Archival Research Visitor Programme is open to scientists at all career levels who are affiliated with institutes in ESA Member States and Cooperating States (note that all visits must comply with the ESA Security Directives, which may necessitate additional checks). Early-career scientists are particularly encouraged to apply, including PhD students (see below). We encourage applications from women and minorities. The peer-review evaluation process is anonymised to ensure equal opportunities for all applicants.

Residence lasts typically between one and three months, also distributed over multiple visits, depending on the complexity of the research project. The research projects can be carried out at ESAC (Madrid, Spain) and at ESTEC (Noordwijk, Netherlands). To offset the expenses incurred by visitors, ESA covers travel costs from and to the home institution and provides support for lodging expenses and meals.

During their stay, visiting scientists have the opportunity to interact with archive and mission specialists for questions on the retrieval, calibration, and analysis of archival data. In principle, all areas of space research covered by ESA science missions can be supported (the data must be publicly available in the archives). To ensure that technical expertise in the specific area of interest is available at ESAC or ESTEC, applicants should consult the table of expertise and contact the relevant scientists in their field of interest (this is very important). In case of doubts, write to the programme coordinators for assistance at arvp@cosmos.esa.int.

The next deadline for applications is Wednesday 30 April 2026, 23:59 UTC

Call for applications

Applications can be submitted at any time by sending email to arvp@cosmos.esa.int. The email should contain a single PDF document of at most three pages detailing:

  • description of the goals of the research project
  • public archival data on which help is sought
  • which type of expertise you expect to gain
  • proposed time and duration of the visit
  • expected publications
  • contact information

Please keep it short (max 2 pages for the text of the proposal, max 1 page for figures, references, and contact information) and follow the simple template provided here. Note that this is just a template, you can use the font type and size that you prefer (not smaller than 10), but please do not exceed two pages for the text and one page for figures, references, and contact information. You must indicate in which year you obtained (or will obtain) your PhD.

To prevent unconscious biases, your name, email address, and other contact information (on the third page) will not be visible to reviewers. To help in the process, you must write your application in an “anonymous” way, i.e. do not identify yourself in the text. For instance, do not mention the name of your institute or collaborators in the scientific description of the project (page 1 and 2) and when you are referring to one of your papers, do not write “I have shown that … (Author Name, 2023, Journal, 954, 125)”, but rather write “It has been shown that … (Author Name, 2023, Journal, 954, 125)”. If you identify yourself, the application will not be considered.

We encourage you to contact us if you have any questions about the data that could support your research project. You will find the names of our experts in the various science areas in the table of expertise below. Or write to the programme coordinators for assistance at arvp@cosmos.esa.int.

Students

We welcome proposals by graduate students. The proposals can be submitted by the students themselves or in collaboration with their supervisors. If you are a student and would like to visit ESA to learn more about doing science with archival data, make sure that you coordinate and agree your research project with your supervisor. Mention this in the application, but omit the name of the supervisor, otherwise the application is not anonymous.

Deadlines

Applications can be submitted at any time and are reviewed twice a year, with deadlines usually on 30 April and 31 October. The results of the review will be communicated to applicants within about two months of the deadlines. Applicants are encouraged to contact the ESA scientists or the programme coordinators well ahead of the deadlines in order to discuss their research plans.

Applications received by 30 April 2026 (23:59 UTC) will be considered for visits in autumn and winter 2026/2027.

Please find here full details.

PhD position in GW detectors University of Münster

The Institute for Nuclear Physics in the Faculty of Physics at the University of Münster, Germany, is seeking to fill the position of a Doctoral Research Associate (Wissenschaftlicher MitarbeiterIn, salary level E 13 TV-L) at the earliest possible date. We are offering a fixed-term part-time position (67%) for 3 years. Full-time employees are required to teach 4 hours per week during the semester. Application deadline February 28th, 2026.

Please find here full details.

PhD opportunities at the Institute of Space Sciences (ICE-CSIC & IEEC)

Possibility of pursuing a PhD in gravitational wave physics at the Institute of Space Sciences (ICE-CSIC) in Barcelona [see a description below] through the: Doctoral INPhINIT Incoming fellowship program of the LaCaixa Foundation. Application deadline: January 23rd, 2025, at 2 pm CET.

Candidates must not have resided or carried out their main activity (work, studies, etc.) in Spain for more than twelve months in the three years immediately preceding the closing date of the call.

The ICE-CSIC, as a research centre accredited with the Spanish Seal of Excellence María de Maeztu will support applications of interested candidates to work in any aspect of gravitational wave astronomy, from instrumentation to theory. ICE members participate in LISA, LVK, and ET.

Contact: Carlos F. Sopuerta (carlos.f.sopuerta(at)csic.es), Sascha Husa (sascha.husa(at)csic.es), Miquel Nofrarias (nofrarias(at)ice.csic.es)

Please find here full details.

ERC-funded Postdoc and PhD positions on gravitational-wave theory, source modeling, and science interpretation at the MPI for Gravitational Physics in Potsdam

The "Astrophysical and Cosmological Relativity" (ACR) department at the Max Planck Institute for Gravitational Physics (Albert Einstein Institute, AEI) in Potsdam Science Park announces the opening of several Ph.D. students and postdoctoral appointments in gravitational-wave theory, source modeling, and science interpretation. Successful candidates will join the GWSky project, which an ERC Synergy Grant  has recently funded. We are particularly interested in hiring creative and highly motivated candidates who can work collaboratively and independently in a vibrant, welcoming, and synergistic group. The deadline for full consideration is December 6, 2024.

The ERC-funded project called “Making sense of the unexpected in the gravitational-wave sky (GWSky)” is led by PIs Alessandra Buonanno, head of the ACR department, Enrico Barausse (SISSA, Trieste, Italy), Zvi Bern (University of California, Los Angeles, US), and Maarten van de Meent (Niels Bohr Institute, Copenhagen, Denmark). Given the synergistic aspect of the GWSky project, we anticipate that for a few postdoctoral scholars, there will be the opportunity to spend two years at the AEI and the subsequent two years in another node. One of the supervisors of the Ph.D. students at the AEI may be located in another node.

The aim of the GWSky project is to use gravitational-wave measurements by existing and future observatories on the Earth and in space as precision laboratories for fundamental physics, cosmology, and astrophysics. This includes the current LIGO-Virgo-KAGRA detectors, as well as the future ground-based observatories Cosmic Explorer and Einstein Telescope, and the space-based detector LISA. By leveraging the PIs and their groups’ expertise, the GWSky project aims to develop a groundbreaking framework capable of solving the highly nonlinear equations by Einstein’s General theory of Relativity, creating waveform models with unprecedented accuracy, and translating these results into practical tools for interpreting the data.

As a consequence, we are looking at candidates in the following research areas: post-Minkowskian formalism, scattering amplitudes, gravitational self-force, post-Newtonian theory, effective-one-body formalism, numerical-relativity surrogate models, methods to accelerate waveform generation, numerical-relativity simulations in General Relativity and alternative theories of gravity, environmental effects for binary systems, tests of General Relativity, gravitational-wave data analysis and machine learning.

To apply, please submit your application via our job portal
for the postdoctoral positions here.
for the PhD positions here.

You will be asked to upload a cover letter, curriculum vitae, list of publications and a statement of past and future research activities of not more than 3 pages. Ph.D. applicants will also be asked to upload their university transcripts and Master thesis (if applicable). Applicants will need to indicate the names of three referees for recommendation letters. Please Register an account with our job portal and fill in the contact information for the referees well before the deadline, so that reference letters can be received in time. Referees will receive an email with instructions on how to upload their letters. In case of technical problems with the application form, please contact jobs(at)aei.mpg.de.

The four nodes of GWSky will have positions in a variety of subdisciplines that feed into precision theoretical studies of gravitational waves. Those interested in potential positions at other nodes may follow the links:

Candidates are encouraged to apply as soon as possible. The deadline for full consideration, including receipt of reference letters, is December 6, 2024. The anticipated start date of the positions is Fall 2025. Applications will be considered until all positions are filled.

The salary and social benefits (e.g., health insurance) are based on the collective labor agreement “TVöD Bund” for the German public sector, usually at pay grade E13 (if the qualifications according to TVöD are met). In case an offer is made, a projection of the gross and net salary based on the TVöD regulations will be prepared.

The Max Planck Institute for Gravitational Physics is an equal opportunity employer and is committed to providing employment opportunities to all qualified applicants without regard to race, color, religion, age, gender identity, sexual orientation, or national origin. The Max Planck Society is committed to increasing the number of individuals with disabilities in its workforce and, therefore, encourages applications from such qualified individuals. The AEI and the Max Planck Society welcome persons with diverse backgrounds, experiences, and ideas who embrace and value diversity and inclusion (Code of Conduct). The institute promotes a healthy work-life balance by offering all employees a family support service, cooperation with a nearby international kindergarten, and an in-house parent-child office and nursing room.

For further information, please contact acr-jobs(at)aei.mpg.de.

Please find here full details.