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Scientific programmer position in the Computational Relativistic Astrophysics division at the Max Planck Institute 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 a position for a scientific programmer. This division currently focuses on several research topics in computational relativistic astrophysics including neutron star mergers, collapsars, nucleosynthesis, stellar core collapse and explosion, the formation and evolution of very massive and supermassive black holes, and multi-messenger astrophysics. The deadline for the full consideration is 12 pm on August 16th, 2026 (CET).

We are seeking a scientific programmer with a research background who meets the following requirements, i.e., who has

  • Experience in independently developing numerical relativity codes for solving Einstein’s equation and running them on high-performance computers
  • Experience in independently developing relativistic magnetohydrodynamics simulation codes and running them on high-performance computers
  • Experience in independently developing radiative hydrodynamics simulation codes and running them on high-performance computers
  • Experience in independently developing a code with adaptive mesh refinement scheme for solving Einstein’s equation and radiation magnetohydrodynamics equations
  • Ability to write codes optimized for both CPUs and GPUs
  • A track record of publishing at least 10 scientific papers in well-established international journals

We offer you a responsible and multifaceted job in an international working environment, extensive opportunities for further education, and an excellent working atmosphere in a friendly and committed team. Flexible working hours and the compatibility of career are of course an important matter for us.

The scientific programmer who meets these requirements has the possibility to be hired as a permanent member of staff following a three-month probationary period.

Remuneration and social benefits are based on the public service collective agreement (TVöD).  A projection of the gross and net salary based on the TVöD regulations will be prepared in case an offer is made. Additional support and professional development are available.

To apply for a scientific programmer position at the AEI in Potsdam, please fill out this form:

https://jobs.aei.mpg.de/250/scientific-programmer-position-cra/apply

Applicants will be asked to upload a cover letter, curriculum vitae, list of publications and statement of their research interests. Applicants will need to indicate the names of three referees for recommendation letters. Referees will be notified by email on how to upload the letters (in case of problems, referees could send the letters directly to nrjobs(at)aei.mpg.de).

The deadline for the full consideration is 12 pm on August 16th, 2026 (CET). The position will be available from November 1st, 2026.

We value diversity and therefore welcome all applications – regardless of gender, nationality, ethnic background, origin, religion and ideology, age, sexual orientation and identity (Code of Conduct). 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. Furthermore, the Max Planck Society seeks to increase the number of women in those areas where they are underrepresented and therefore explicitly encourages women to apply.

The institute promotes a healthy work-life balance by offering all employees a family support service, cooperation with a nearby international kindergarten, as well as an in-house parent-child office and nursing room.

The excellent working environment offers various on-campus support (computing facilities, language courses, residence permit and visa support, children’s day care, etc.). The AEI is located just 30 minutes from the city center of Berlin.

Please find here full details.

Call for expressions of interest – Marie Curie and “la Caixa” Fellowships

The Galician Institute of High Energy Physics (IGFAE, University of Santiago de Compostela https://igfae.usc.es/) invites expressions of interest from outstanding candidates who would like to apply for:

1. Marie Skłodowska-Curie Postdoctoral Fellowships
2. Postdoctoral Junior Leader Fellowships from the "la Caixa" Foundation

1. Marie Skłodowska-Curie Postdoctoral Fellowships:

For more information, visit the Marie Curie Fellowships website. The application deadline is September 9, 2026.

2. Postdoctoral Junior Leader Fellowships (“la Caixa” Foundation):

These 3-year fellowships offer a very competitive salary and a research grant of 115,500 EUR (eligible also to hire personnel). The program has two calls:

  • Incoming: For applicants who have not resided in Spain more than 12 months in the last 3 years.
  • Retaining: For applicants who have resided in Spain more than 12 months in the last 3 years. 

Applicants must have been awarded a PhD between two and seven years prior to the call’s closing date. The selection process is managed by the “la Caixa” Foundation. For more information, visit the Postdoctoral Junior Leader Fellowships website, where details of the latest calls can also be found.

Expected Dates for “la Caixa” Fellowships:

– July 2026: Call opens

– October 2026: Call deadline

– January 2027: Pre-selection results and interview invitations

– March 2027: Interviews and publication of results

– May-December 2027: Job contracts commence

How to send the expression of interest

Interested candidates are invited to identify a potential IGFAE supervisor among its senior and junior staff (see https://igfae.usc.es/igfae/en/staff/). Candidates should then contact the potential supervisor with:

– A message indicating the call of interest (“la Caixa” Incoming/Retaining, Marie Curie, or both)

– A short CV

– A short abstract of the planned research proposal (half a page)

Expressions of interest are welcome at any time, but late ones may miss the chance to be considered. They should be sent to the potential supervisor only, and not to jobs(at)igfae.usc.es

Please find here 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

LHO Electrical Engineering Lead

The LIGO Laboratory and LIGO Hanford Observatory invite applications for an Electrical Engineering Lead. We also ask that you circulate this announcement within your networks and encourage strong candidates to apply.

Job Summary: At LIGO Hanford you’ll coordinate a skilled team of engineers and technicians in the design, testing, and maintenance of precision analog and digital electronics, playing a key role in the day-to-day operations of a one-of-a-kind scientific facility. You’ll collaborate with a diverse, international community of scientists and engineers, and have the opportunity to contribute to research that pushes the boundaries of what’s possible. This is a leadership role where your technical skills and team-building abilities both matter.

Please find here full details.

DESY-Fellowships in Experimental Particle Physics

For our location in Hamburg we are seeking: DESY-Fellowships in Experimental Particle Physics
Remuneration Group 13 | Limited: 2+1 years | Starting date: between 01.07.2026 and 01.01.2027 | ID: FHFE001/2026 | Deadline: 31.03.2026 | Full-time/Part-time
DESY, with more than 2900 employees at its two locations in Hamburg and Zeuthen, is one of the world's leading research centres. Its research focuses on decoding the structure and function of matter, from the smallest particles of the universe to the building blocks of life. In this way, DESY contributes to solving the major questions and urgent challenges facing science, society and industry. With its ultramodern research infrastructure, its interdisciplinary research platforms and its international networks, DESY offers a highly attractive working environment in the fields of science, technology and administration as well as for the education of highly qualified young scientists.

We participate in leading roles in particle physics projects on our campus and at international laboratories such as CERN or KEK. We develop technologies for detectors and accelerators, and work on scientific computing. We operate important infrastructures such as a WLCG Tier-2 computing centre or the DESY test beam facility.

Interested applicants for a fellowship in experimental physics are requested to submit their application in English (letter of motivation, research interest, CV, list of publications, copies of university degrees, three letters of reference) via our application portal. The statement about the scientific interest has to include your specific motivation for one of the research projects mentioned below.

The decision on the awarding of a fellowship for the 1/2026 selection round will presumably be made by 31 May 2026. The fellowship at DESY in Hamburg is to be started during the second half of 2026.

About your role:

You are invited to take an active role in one of the following research projects in Hamburg:

  • ATLAS ITk Strip Detector Upgrade, possibly in combination with a physics analysis
  • CMS Outer Tracker Upgrade, possibly in combination with a physics analysis
  • Study of B- or τ-decays at Belle II
  • Current and future on-site experiments

About you:

  • PhD in Physics: Doctorate must be completed before starting the fellowship, but must not be older than 5 years
  • Strong interest in particle physics research, detector development or scientific computing
  • Expert knowledge and experience in the field of the selected project

Good reasons to join:

Look forward to a unique working environment on our international research campus. Respectful cooperation and the well-being of our DESY employees are particularly important to us. Gender equality is an important aspect for us. To support work life balance we offer flexible working hours and variable part-time. You will benefit from our family-friendly and collegial atmosphere, our established health management and occupational pension provision. As a public funded employer, we offer you a secure workplace and facilitate your individual career with our comprehensive training and development opportunities. Remuneration is according to the regulations of the TV-AVH. DESY offers its employees a financial supplement for a German job ticket (Deutschland-Ticket) at both locations.

Further informations about the DESY-Fellowship can be found here: https://www.desy.de/FellowFH

Please arrange for three letters of reference to be uploaded via our online toolby 31 March 2026.

We look forward to receiving your application via our application portal:

 Apply now!

DESY promotes equal opportunities and diversity. The professional development of women is very important to us and therefore we strongly encourage women to apply for the vacant position. Applications from severely disabled persons will be given preference if they are equally qualified (sbv.desy.de).

You can find further information here:

https://www.desy.de/career

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.

Postdoctoral position in GW cosmology at ICG, University of Portsmouth

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.

ETpathfinder Visiting Scientists Programme Open For Applications

The ETpathfinder Visiting Scientists Programme provides funding to welcome researchers and engineers to our ETpathfinder R&D facility in Maastricht, the Netherlands. This program is designed for senior scientists and engineers, postdoctoral researchers and experienced PhD students who wish to engage with cutting-edge interferometric technology while contributing their expertise to advance our experimental capabilities.

ETpathfinder serves as a R&D fieldlab facility for developing technologies that will enable future -generation gravitational wave detectors, such as Einstein Telescope. Our research focuses on high-precision interferometry with cryogenic silicon test masses, seismic isolation systems, optics, photonics, quantum noise reduction, controls and environmental monitoring as well as on engineering, systems engineering, integration and cleanliness aspects.

For any questions or enquiries, please contact us via etpf-visiting-scientist-prog(at)nikhef.nl

Applications can be submitted via this webpage.

Global Talent Ireland Call

Global Talent Ireland aims to attract exceptional mid-career and established researchers from across the globe to Ireland. Researchers funded through this programme are required to transfer their research activities from their current location to an Eligible Research Body in Ireland. Given its commitment to equality, diversity and inclusion, Research Ireland welcomes applications from women and those from historically underserved communities.  
  • Deadline for Expression of Interest: 28th August 2025
  • Deadline for full-proposal: October 2025
  • Duration: 6 years
  • Amount: €2.25M to 3.25M (direct costs)

The programme budget includes the resources to build a research team (e.g., staff, consumables and travel) to carry out high-impact, world-class research, and additional start-up costs to support the researcher’s move to Ireland.

The programme comprises two streams: Rising Stars and Research Leaders. High level details are outlined in the table below:

Career stage

Award duration

Research funding

Startup funding

Maximum budget request

Rising Star

5-15 years post-PhD

6 years

€1.5M

€0.75M

€2.25M

Research leader

16+ years post-PhD

6 years

€2.5M

€0.75M

€3.25M

Please find here full details.

CDD researcher (M/F) : Ultra-dense matter equation of state and gravitational Waves, Caen, France

The determination of the equation of state and composition of ultra-dense matter from multi-messenger astrophysical observations remains a central challenge in nuclear physics and high-energy astrophysics. Within this context, the LuTH-Caen theory group, as part of the Virgo collaboration, itself part of the LIGO-Virgo-KAGRA consortium, has established a recognized expertise in the theoretical modeling of ultra-dense stellar matter and the development of advanced statistical methods for quantifying theoretical uncertainties and their impact on the confidence intervals of astronomical observables.

Application Deadline: March 27th 2025

This postdoctoral project aims to generate quantitative predictions for the key parameters governing the emission of detectable gravitational wave signals from compact objects, incorporating the uncertainties inherent in the underlying microphysics. Specifically, the successful candidate will focus on parameter estimation in one of two contexts: neutron star binary coalescence, either during the inspiral or post-merger phase, or the continuous gravitational waves emitted by isolated neutron stars.
Within this framework, the successful candidate will contribute to the interpretation of signals from past and ongoing LVK observational campaigns, as well as to the preparation for third-generation interferometers, including post-O5 and the Einstein Telescope. The research will specifically aim to constrain the microscopic properties of dense hadronic matter, such as the nuclear equation of state, and to identify potential signatures of deconfinement phase transitions.

Activities

The successful postdoctoral fellow will be responsible for maintaining and further developing the Bayesian analysis tools for equation-of-state inference within the LPC theory group. This work will be carried out in close collaboration with group members from GANIL and the Strasbourg Observatory, the latter being conducting numerical relativity simulations of post-merger remnants. Depending on the candidate’s previous research experience and interests, there may also be opportunities to contribute to the group’s theoretical developments related to the modeling of dense and superfluid matter in neutron stars. The candidate is expected to contribute to research activities and topics such as:

  • Development of the CUTER tool for the improvement of parameter estimation using microphysics informed equations of state, see https://zenodo.org/records/10781539
  • Numerical simulations for the physics case prospects of third generation interferometers
  • Theoretical modelling of the zero and finite temperature nuclear equation of state and its possible phase transitions, with both effective and microscopic models
  • Development and analysis of neutron star cooling simulations and applications to the measurable properties of the neutron star crust

Skills

The successful candidate must have a PhD in theoretical nuclear physics, gravitational wave data analysis or numerical hydrodynamics. Proficiency in scientific programming (C, C++, Python) and numerical simulations is expected. Familiarity with software development tools such as git and gitlab, while not essential, would be an advantage.

Work Context

The successful candidate will be assigned to the theory and phenomenology team, within the Corpuscular Physics Laboratory of Caen.
The team has a longstanding experience in theoretical nuclear modelling. Since 2020, it is part of the Virgo collaboration within a theoretical group including researchers from the astronomical observatory in Strasbourg, and the GANIL laboratory in Caen.
The LPC CAEN, with about 100 staff, is a joint research unit (UMR 6534) under the supervision of three institutions: the CNRS, the University of Caen Normandy (UCN) and the Ecole Nationale Supérieure d’Ingénieurs de Caen (ENSICAEN). It is located on Campus 2 of the University of Caen (Campus Côte de Nacre) and is part of the research park of ENSICAEN (www.lpc-caen.in2p3.fr/).

Please find here full details.