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EAS Job Directory
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| Postdoctoral Fellowship in Theoretical and Gravitational Wave Astrophysics | Closing date: 2026-11-15
Contact: Martin E. Pessah |
The Niels Bohr International Academy (NBIA) at the Niels Bohr Institute invites expressions of interest for a three-year postdoctoral fellowship in theoretical and gravitational wave astrophysics via Academic Jobs Online by November 15, 2026. | | ▸ more | The Niels Bohr International Academy (NBIA) at the Niels Bohr Institute invites expressions of interest for a three-year postdoctoral fellowship in theoretical and gravitational wave astrophysics. The appointment is expected to begin in fall 2027, but other starting dates can be negotiated. The postdoctoral fellow will join the Theoretical Astrophysics Group led by Martin Pessah and develop research projects as part of a major expansion supported by an ERC Advanced Grant and the Carlsberg Foundation’s Semper Ardens Accomplish Grant. A main goal of the program is to bring together astrophysical fluid dynamics and gravitational wave astrophysics to understand the environments leading to compact binary mergers, from stellar-mass compact objects to supermassive black holes. A central focus is the formation, evolution, and observable signatures of black-hole binaries in turbulent, magnetized disks around supermassive black holes. Candidates with relevant expertise from other areas will receive full consideration. We seek a researcher with a record of original research contributions and the ability to develop creative and independent research. We particularly welcome candidates whose complementary expertise can open new directions for the Theoretical Astrophysics Group. The postdoctoral fellow will be encouraged to pursue their own research ideas and collaborations while contributing to the broader scientific program. The postdoctoral fellow will have opportunities to mentor students and junior researchers and to co-organize international workshops and PhD schools. There will also be opportunities to participate in teaching, outreach activities, and the organization of seminars. The fellow will have access to travel funding and the Tycho high-performance computing facility, which includes more than 10,000 CPU cores and GPU resources. NBIA is an international center for fundamental research in theoretical physics. NBIA provides an open intellectual environment where researchers can pursue their own questions and exchange ideas across disciplines. It brings together researchers across astrophysics, gravitational physics, particle physics, quantum sciences, and soft matter physics. NBIA also hosts seminars, international visitors, workshops, and PhD schools. Its research in black-hole dynamics, gravitational-wave modeling, and multimessenger astrophysics offers further opportunities for collaboration. NBIA members interact and collaborate with the larger community of scientists in Copenhagen, including the Center of Gravity, DAWN, DARK, and StarPlan. Interested candidates should submit a cover letter, CV, publication list, and a research statement describing previous achievements, future directions, and connections to the program via Academic Jobs Online by November 15, 2026. Expressions of interest received after this date may also be considered. Applicants should hold a PhD in astrophysics, physics, or a closely related field by the starting date of the appointment. Employees at the University of Copenhagen receive a competitive salary, including pension. Denmark offers generous parental leave, subsidized childcare, six weeks of paid vacation, and access to public healthcare. Eligible international researchers may also benefit from Denmark’s special researcher tax scheme. Copenhagen is a beautiful, family-friendly city with a large international community, a lively and diverse cultural scene, and a very high quality of life. The University of Copenhagen welcomes all qualified applicants regardless of personal background. Scientific inquiries may be addressed to Martin Pessah (mpessah @ nbi.ku.dk) with email subject ASTRO27PDR
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| Assistant Professorship in Theoretical and Gravitational Wave Astrophysics | Closing date: 2026-11-15
Contact: Martin E. Pessah |
The Niels Bohr International Academy (NBIA) at the Niels Bohr Institute invites expressions of interest for a fixed-term assistant professorship in theoretical and gravitational wave astrophysics via Academic Jobs Online by November 15, 2026. | | ▸ more | The Niels Bohr International Academy (NBIA) at the Niels Bohr Institute invites expressions of interest for a fixed-term assistant professorship in theoretical and gravitational wave astrophysics. The appointment will be for four years, with the possibility of a one-year extension. The appointment is expected to begin in fall 2027, but other starting dates can be negotiated. The assistant professor will join the Theoretical Astrophysics Group led by Martin Pessah and is expected to develop and lead research projects as part of a major expansion supported by an ERC Advanced Grant and the Carlsberg Foundation’s Semper Ardens Accomplish Grant. A main goal of the program is to bring together astrophysical fluid dynamics and gravitational wave astrophysics to understand the environments leading to compact binary mergers, from stellar-mass compact objects to supermassive black holes. A central focus is the formation, evolution, and observable signatures of black-hole binaries in turbulent, magnetized disks around supermassive black holes. Candidates with relevant expertise from other areas will receive full consideration. We seek a researcher with a strong record of original research contributions and a clear scientific vision. The successful candidate will develop an ambitious and independent research program. We particularly welcome candidates whose complementary expertise can open new directions for the Theoretical Astrophysics Group. We envision that this position can provide a foundation for establishing an independent research group through a successful grant application to a Danish or European research agency. Assistant professors at NBIA receive mentoring and support in applying for these grants. The assistant professor will have the opportunity to mentor students and junior researchers and will also be given freedom to co-organize international workshops and PhD schools. There is an opportunity to launch and run a new seminar program in the field. Teaching responsibilities are limited and provide opportunities to engage with students. The assistant professor will have access to travel funding and the Tycho high-performance computing facility, which includes more than 10,000 CPU cores and GPU resources. NBIA is an international center for fundamental research in theoretical physics. NBIA provides an open intellectual environment where researchers can pursue their own questions and exchange ideas across disciplines. It brings together researchers across astrophysics, gravitational physics, particle physics, quantum sciences, and soft matter physics. NBIA also hosts seminars, international visitors, workshops, and PhD schools. Its research in black-hole dynamics, gravitational-wave modeling, and multimessenger astrophysics offers further opportunities for collaboration. NBIA members interact and collaborate with the larger community of scientists in Copenhagen, including the Center of Gravity, DAWN, DARK, and StarPlan. Interested candidates should submit a cover letter, CV, publication list, and a research statement describing previous achievements, future directions, and connections to the program via Academic Jobs Online by November 15, 2026. Expressions of interest received after this date may also be considered. Applicants should hold a PhD in astrophysics, physics, or a closely related field by the starting date of the appointment. Employees at the University of Copenhagen receive a competitive salary, including pension. Denmark offers generous parental leave, subsidized childcare, six weeks of paid vacation, and access to public healthcare. Eligible international researchers may also benefit from Denmark’s special researcher tax scheme. Copenhagen is a beautiful, family-friendly city with a large international community, a lively and diverse cultural scene, and a very high quality of life. The University of Copenhagen welcomes all qualified applicants regardless of personal background. Scientific inquiries may be addressed to Martin Pessah (mpessah @ nbi.ku.dk) with email subject ASTRO27PROF
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| Research software engineer in computational astrophysics | Closing date: 2026-11-15
Contact: Joop Schaye |
| Leiden Observatory invites applications for a research software engineer within the cosmological simulations group of Dr. Matthieu Schaller and Prof. Joop Schaye. | | ▸ more | The successful applicant may work on various aspects related to the development and use of cosmological simulations such as
- The development, optimization, maintenance and documentation of codes and analysis tools
- Data management
- Preparation of public data releases
- Community support for released software and data
- Assisting research students with technical problems related to simulation development and analysis
- Visualization for public outreach and education
- Running of simulations on high-performance computing systems
- Benchmarking for computing time proposals
The appointment will be for two years initially, after which it will be made permanent in case of satisfactory performance. The position comes with a competitive salary and full benefits.
We are looking for someone with a strong background in computational astrophysics/cosmology who enjoys working in a team. Experience with C, Python, parallel programming, computing clusters, and artificial intelligence would be beneficial. The successful candidate must have a Ph.D. by the starting date.
Leiden Observatory is the oldest university astronomy department in the world, and the largest astronomy department in the Netherlands. Leiden is a charming university town with international flair. Fostering an inclusive community is a central element of the values and vision of Leiden University.
Please submit applications electronically by November 15, 2026. You will be asked to fill in a web form, to provide contact information for three referees, and to upload a cover letter, a curriculum vitae, and a statement of experience and interests. Referees can only submit their letters after receipt of an email by the submission system. This is initiated by the applicant. The applicant should register early and start this process.
Link to online application: https://jobs.strw.leidenuniv.nl/2026/SchayeSE/
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| Postdoctoral Position: JWST and the First Galaxies at Cosmic Dawn | Closing date: 2026-11-16
Contact: Pascal Oesch |
| The Department of Astronomy at the University of Geneva invites applications for a postdoctoral position in observational extragalactic astronomy in the group of Prof. Pascal Oesch, funded by the Swiss National Science Foundation (SNSF) project "Unveiling Cosmic Dawn: JWST Constraints on the Formation and Physics of the First Galaxies at z>10". | | ▸ more | The successful candidate will contribute to the project's main goals: identifying the most distant galaxies with new imaging, characterizing their physical properties with JWST/NIRSpec, and linking early galaxies to their dark matter halos through clustering measurements, building on several large surveys as well as the DAWN JWST Archive (DJA). We welcome applicants with expertise in any of the following: photometric selection of high-redshift galaxies, spectroscopic analysis, galaxy clustering, halo occupation distribution (HOD) modeling, or simulation-based inference (SBI). The postdoc will have the opportunity to supervise PhD student and Master's students.
The position is for two years, with a possible extension to a third year. Expected start: fall 2027 (negotiable). A PhD in astrophysics or a related field is required by the start date.
At the Department of Astronomy in Geneva, the successful candidates will find a rich and vibrant research environment in several fields of astrophysics. Our group also has close ties to the Cosmic DAWN Center in Copenhagen, with plenty of opportunities for collaboration. More information on the group can be found at: https://www.unige.ch/sciences/astro/cosmicdawn/
To apply, use the Google Form at https://forms.gle/g7QWMvmwL451THYTA
(Google sign-in required) to upload a single PDF containing a cover letter, a CV with publication list, and a research statement (max. 3 pages), and to provide contact details of three referees. The form also contains a short self-evaluation. Reference letters will only be requested for shortlisted candidates. Applications received by the end of November 16, 2026 (anywhere on Earth) will receive full consideration.
The University of Geneva is an equal opportunity employer and encourages applications from all qualified candidates.
Included Benefits: Standard Swiss social security, accident insurance and pension contributions.
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| Postdoc or Senior Research Assistant in astronomical instrumentation at the University of Bern, Switzerland | Closing date: 2026-11-29
Contact: Lucia Kleint |
| The Astronomical Institute operates the Zimmerwald Observatory with 5 telescopes from 20 cm to 1 m. We are building a unique spectropolarimeter to measure the full visible spectrum of flares, both for stellar and solar observations. The first stellar prototype is already installed at our observatory (80 cm telescope). The solar instrument version is in the design phase and planned to be used as a guest instrument. The goal of this position is to contribute to the design, review, and commissioning as part of our instrumentation team. | | ▸ more | The successful candidate will work in the space weather group, which combines building astronomical instrumentation, machine learning, and researching the physics of the Sun and stars. This position is initially part of an ERC project. The selected candidate will also have the opportunity to be involved in our adaptive optics project and further scientific work. This position includes management duties for documentation, reviews, and our optics lab.
More details and the application procedure can be found at https://www.aiub.unibe.ch/about_us/jobs/index_eng.html
Application deadline: November 29, 2026
Starting date: after March 1, 2027.
The hiring level will be determined according to the candidate's previous experience and preferences. Senior candidates will be asked to manage the instrumentation group and further instrumentation projects and will be able to expand their teaching portfolio, with the prospect of becoming the deputy leader for the whole research group, and to qualify for a future permanent position in the institute.
Contact:
Prof. Dr. Lucia Kleint (email lucia.kleint @ unibe.ch).
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| Postdoctoral Position(s) (m/f/d) at MPE Garching | Closing date: 2026-12-01
Contact: Prof. Esra Bulbul |
Postdoctoral Position(s) (m/f/d) at MPE Garching
Job Code: 20/2026
The High-Energy Astrophysics Group at the Max-Planck-Institute for Extraterrestrial Physics (MPE), led by Prof. Kirpal Nandra, invites applications for one or more postdoctoral positions. The successful candidate(s) will carry out research in one of the group’s core areas: | | ▸ more | • Observational cosmology and astrophysics: cosmological constraints from cluster surveys, galaxy group and cluster astrophysics, large-scale structure and cosmic web, 4MOST follow-up
• Supermassive black hole evolution: evolution of active galactic nuclei and their host galaxies across cosmic time, using eROSITA surveys with SDSS-V and 4MOST follow-up
• Accreting compact objects: X-ray binaries, cataclysmic variables and ultraluminous X-ray sources, from population studies to detailed accretion physics
• High-energy transients: fast X-ray transients from Einstein Probe, tidal disruption events, and quasi-periodic eruptions
• Hot interstellar, circumgalactic and intergalactic media: the eROSITA bubbles and hot Milky Way halo, the circumgalactic medium of nearby galaxies, and the warm-hot gas in cosmic filaments
Why MPE: MPE is a world-leading institute for space- and ground-based experimental astrophysics. The High-Energy Group has contributed instrumentation to many missions including Chandra and XMM-Newton and led the development of the eROSITA X-ray telescope. MPE is also partner in Einstein Probe and a lead institute in ESA’s future NewAthena X-ray observatory. The group is involved in several ground-based projects, including GROND, SDSS-V, 4MOST, and Rubin/LSST, primarily in support of the space programs.
Requirements: A Ph.D. in astronomy or astrophysics (completed or imminent) and a publication record relevant to the areas above. Experience with X-ray data analysis or interpretation is desirable.
Terms: The position(s) is/are available immediately and will be for a period of three years. Salary follows the German public-sector pay scale (TVöD Bund) and will be paid according to your qualifications and professional experience up to a maximum of EG14.
Your application:
Please submit the following in English, as PDFs, via our online application portal (https://recruitingapp-5257.de.umantis.com/Vacancies/714/Application/CheckLogin/2?lang=eng) by December 1, 2026: a cover letter, a curriculum vitae, a list of publications, a brief (~1 page) statement of research interests.
In addition, three letters of reference should be sent by the application deadline to applications @ mpe.mpg.de
Informal inquiries about the position may be addressed to Prof. Esra Bulbul (ebulbul @ mpe.mpg.de) or Prof. Kirpal Nandra (knandra @ mpe.mpg.de). For further information about MPE and the High-Energy Group please visit our homepage http://www.mpe.mpg.de/214514/heg.
MPE is committed to equal opportunities and diversity. We welcome all applications regardless of gender, nationality, ethnic or social origin, religion or belief, disability, age, sexual orientation or identity. Family-friendly working conditions are a matter for us.
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.
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| Kavli–Newnham Cecilia Payne-Gaposchkin Postgraduate Studentships at the KICC, University of Cambridge | Closing date: 2026-12-08
Contact: Carolyn Young, Debbie Peterson |
| The Kavli–Newnham Cecilia Payne-Gaposchkin Postgraduate Studentship supports an outstanding woman in STEM to undertake a fully funded PhD at the University of Cambridge from October 2027. The programme offers cross-disciplinary research across the Institute of Astronomy, Cavendish Laboratory and Department of Applied Mathematics and Theoretical Physics, with affiliation to the Kavli Institute for Cosmology and membership of Newnham College. One studentship is available; applications close 8 December 2026. | | ▸ more | The Kavli–Newnham Cecilia Payne-Gaposchkin Postgraduate Studentship Programme is a new initiative to support outstanding women in STEM to pursue PhD degrees at the Kavli Institute for Cosmology, Cambridge (KICC), and Newnham College. One student is expected to be recruited each year, building a cohort of four students. The programme brings together three departments: the Institute of Astronomy (IoA), Cavendish Laboratory (Department of Physics), and Department of Applied Mathematics and Theoretical Physics (DAMTP).
Cambridge offers a broad, integrated research environment spanning theory, observation, instrumentation and computation. Students will be part of the KICC community and PhD cohorts across the three departments. Joint supervision and cross-departmental collaboration are encouraged, with possible involvement of Kavli Institute Fellows. Research topics will align with KICC’s scientific themes. Students can also access lectures, seminars, optional courses, researcher development and transferable-skills training, including communication, leadership, conference presentation and career development.
Newnham College is a supportive academic community and the oldest Cambridge college run by women, for women. The programme supports the University’s commitment to equal opportunity, an inclusive academic culture and gender equality.
Funding and support
The award provides a fully funded four-year international studentship, covering the University Composition Fee and a maintenance allowance (£21,805 for 2026–27). It also includes a personal research allowance of £6,000 over the PhD, support for student visa and Immigration Health Surcharge costs, and one economy-class journey to Cambridge from abroad for relocation. Newnham College accommodation is expected to be available to rent for the first two years. A child-dependent allowance may be available to student parents to cover visa application fees, Immigration Health Surcharge and one economy-class journey to Cambridge from abroad for each accompanying child. Part-time awards (normally 4–7 years) are subject to departmental and supervisor approval; funding is pro-rated.
How to apply
Submit an application through the University of Cambridge Applicant Portal to one of these PhD programmes:
PhD in Astronomy: https://www.postgraduate.study.cam.ac.uk/courses/directory/pcaspdpay
PhD in Physics (Astrophysics): https://www.postgraduate.study.cam.ac.uk/courses/directory/pcphpdphy
PhD in Applied Mathematics and Theoretical Physics: https://www.postgraduate.study.cam.ac.uk/courses/directory/maampdmtp
Eligible applications to any of the three departments will be considered for the studentship. Apply through the department best matched to your proposed project and indicate interest in working with one or more KICC supervisors. Applicants should describe their research interests and the kind of work they wish to pursue, such as observational research, data science or statistical analysis, computer simulations, or theoretical work. Successful candidates will join KICC and must have at least one KICC member on their supervision team. Home-fee and international-fee applicants will be considered. Applicants must meet the University’s academic entry requirements for the relevant PhD programme. Part-time eligibility depends on the relevant department’s conditions and supervisor availability.
PhD students are also members of a Cambridge College. Applicants do not need to select Newnham as a first or second College preference, provided they accept a transfer to Newnham if awarded the studentship. In the case of equally exceptional applicants, preference will be given to those who select Newnham as their first or second choice.
The application deadline, including reference letters, is 8 December 2026. The programme starts in October 2027; shortlisted applicants are expected to be notified by the end of January 2027.
Programme information: https://www.kicc.cam.ac.uk/phd-applications/cosmology-at-cambridge/kavli-newnham-cecilia-payne-gaposchkin-postgraduate
Enquiries: admissions @ ast.cam.ac.uk; phd-admissions @ maths.cam.ac.uk; pgadmin @ phy.cam.ac.uk
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| ARRAKIHS Reduction Pipeline Postdoctoral researcher | Closing date: 2026-12-15
Contact: Mohammad Akhlaghi |
Applicants are invited for the ARRAKIHS mission data reduction pipeline postdoctoral researcher position at CEFCA (Centro de Estudios de Física del Cosmos de Aragón) headquarters in Teruel, Spain. Funding for this position is currently secured until August 2029 and can be extended given future grant availability and satisfactory performance.
Formal announcement: https://www.cefca.es/cefca_en/reference_0151 or https://gitlab.com/makhlaghi/2026-pipeline-postdoc/-/raw/main/2026-pipeline-postdoc-announcement.pdf | | ▸ more | Responsibilities/Duties:
Implementation of the necessary reduction pipeline modules within the Harvester coding standards. The pipelines will be developed with the help of the reduction team using synthetic data, as well as data from the ARRAKIHS on-ground demonstrator:
- Research and development on the pipeline as well as the algorithms and implementation of the various modules to ensure the requirements are met.
- Training of new ARRAKIHS reduction team members who will arrive later and will be focused on specific pipelines/modules.
- Review completed work (Git merge/pull requests) from other reduction team members.
- Writing refereed papers on the developed modules and their precision given the ARRAKIHS mission constraints and requirements.
Application template:
Applicants should complete the LaTeX application template (available on https://gitlab.com/makhlaghi/2026-pipeline-postdoc/-/blob/3940873b08/2026-pipeline-postdoc-application.tex or https://codeberg.org/mohammad.akhlaghi/2026-pipeline-postdoc/src/commit/3940873b08/2026-pipeline-postdoc-application.tex; on commit 3940873b08) following the instructions within it; no cover letter or research plan should be submitted. The template (sub-)sections list the evaluation criteria (for example suitable background experience, most relevant research products, previous experience in reduction, software development, etc) and contain an elaborate description of what is expected. Once completed, the LaTeX source should be compiled to a PDF and the PDF should be submitted to jobs @ cefca.es along with the applicant's CV as a separate PDF. The email's subject should be "Ref.0151. ARRAKIHS Reduction Pipeline Postdoc" and it should be sent before the 15th of December 2026.
Evaluation process:
Applications will be evaluated by a committee composed of several CEFCA members and the PI of STREAMDECODE. Candidates will first be assessed based on their completed application (compiled PDF from the LaTeX template above) and their CV. Shortlisted candidates will then be invited for a final interview. Recognizing the impact of family leaves on scientific careers—including maternity, paternity, adoption, or caregiving for family members with serious health conditions—properly documented family leaves will be duly taken into account during the evaluation process.
Work–life balance measures:
Pursuant to the current Collective Agreement of CEFCA: a 37.5-hour workweek (1650h/year) with flexible working hours beyond the established core time; up to 20% remote work; and leave and absence entitlements in accordance with applicable regulations.
Living and working in Teruel offers a high quality of life in a welcoming, safe, and affordable city in the Aragón region, with easy access to nature and outdoor activities and a relaxed pace that is well suited for focused research. Teruel is connected by road and rail to major hubs such as Valencia and Zaragoza, and its location makes weekend trips across Spain straightforward; international travel is also convenient via nearby airports (e.g., Valencia). The region also offers a rich cultural setting, including UNESCO listed Mudéjar architecture in Teruel and nearby destinations such as Albarracín, as well as excellent hiking landscapes across the province. Importantly, employment in Spain means that you (and eligible family members) will be covered by Spain's public healthcare system (Sistema Nacional de Salud), providing access to comprehensive medical services and primary care through the national network.
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| Flatiron Software Research Fellow, Center for Computational Astrophysics | Closing date: 2026-12-31
Contact: Simons Foundation |
| Applications are invited for postdoctoral positions as Flatiron Software Research Fellows (FSRFs) at the Center for Computational Astrophysics (CCA). The CCA offers FSRFs the opportunity for independent scientific software development and scientific research. | | ▸ more | Flatiron Software Research Fellow, Center for Computational Astrophysics
Description
Flatiron Software Research Fellows are expected to develop or substantially contribute to innovative astronomical software projects that enable new or foundational science programs.
FSRF positions are generally two-year appointments that can be renewed for an additional three years, contingent on performance. These positions will be based in our New York City offices, with anticipated start dates between late August and early October 2027.
Responsibilities include but are not limited to:
* Developing, implementing, maintaining, and supporting scientific software relevant to astrophysics
* Engaging in astrophysical research using computational and/or theoretical tools
* Assisting in the organization of CCA and Flatiron-wide collaborative activities including seminars, workshops and meetings
* Actively participating in the preparation of manuscripts for publication and presentations at conferences
* Assisting in student mentorship
* Sharing expertise and providing training and guidance to CCA staff and visitors as needed
Qualifications
Education
* Applicants are required to have (or receive before appointment) a PhD in a related field.
Related Skills & Other Requirements
* Ability to develop and/or contribute to open-source software projects
* Ability to work both independently and collaboratively
* Ability to do original research in astrophysics
* Ability to present research and other types of work, internally and externally
* Expertise in technical elements of computational astrophysics research
* Effective oral and written communication and data documentation
COMPENSATION AND BENEFITS
* The full-time annual compensation for this position is $95,000.
* In addition to competitive salaries, the Simons Foundation provides employees with an outstanding benefits package.
Application Instructions
REQUIRED APPLICATION MATERIALS
* Curriculum Vitae
* Research statement of no more than three pages
* Three (3) letters of recommendation submitted confidentially via Interfolio
* Cover letter (optional)
Deadline: All application materials (including letters) must be received by October 31, 2026.
To apply, please visit: https://apply.interfolio.com/193380
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| Flatiron Research Fellow, Center for Computational Astrophysics | Closing date: 2026-12-31
Contact: Simons Foundation |
| Applications are invited for postdoctoral research positions as Flatiron Research Fellows (FRF) at the Center for Computational Astrophysics (CCA). The CCA offers FRFs the opportunity for independent research in areas that have strong synergy with the CCA or other centers at the Flatiron Institute. | | ▸ more | Flatiron Research Fellow, Center for Computational Astrophysics
Description
Applications are invited for postdoctoral research positions as Flatiron Research Fellows (FRF) at the Center for Computational Astrophysics (CCA). The CCA offers FRFs the opportunity for independent research in areas that have strong synergy with the CCA or other centers at the Flatiron Institute.
Flatiron Research Fellows are expected to carry out an active research program that is independently directed and is encouraged to involve substantial collaboration with other members of the CCA or Flatiron Institute.
FRF positions are generally two-year appointments that can be renewed for a third year, contingent on continued performance. These positions will be based in our New York City offices, with anticipated start dates between late August and early October 2027.
Qualifications
Education
* Applicants are required to have or receive before their appointment a PhD in a related field.
Related Skills & Other Requirements
* Ability to do original research in astrophysics
* Ability to work both independently and collaboratively
* Ability to present research and other types of work, internally and externally
* Effective oral and written communication and data documentation
* Intellectual connections to projects in which the CCA is involved (if relevant)
* Expertise in technical elements of computational astrophysics research, which may include but are not limited to: algorithm and software development; application or development of computational or statistical methods; data analysis; modeling; statistics and machine learning; scientific simulation; or theoretical astrophysics.
COMPENSATION AND BENEFITS
* The full-time annual compensation for this position is $95,000.
* In addition to competitive salaries, the Simons Foundation provides employees with an outstanding benefits package.
Application Instructions
REQUIRED APPLICATION MATERIALS
* Curriculum Vitae with bibliography (Required)
* Research statement of no more than three pages (including figures but not including list of references) describing the applicant's past work, proposed research program, and potential synergies with activities at CCA (Required)
* Three (3) letters of recommendation submitted confidentially by the letter writers via Interfolio prior to the application due date (Required)
* Cover letter (optional)
Deadline: All application materials (including letters) must be received by October 31, 2026
Selection Criteria: Applicants must have a PhD in a related field or expect to receive their PhD before the start of the appointment.
To apply, please visit: https://apply.interfolio.com/193381
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| Call for Expressions of Interest: ERA Chair in Astronomy and Astrophysics | Closing date: 2027-01-15
Contact: Kamen Kozarev |
| The Institute of Astronomy with National Astronomical Observatory (IANAO), Bulgarian Academy of Sciences, invites international R3/R4 researchers to express interest in co-developing a competitive ERA Chair proposal (Horizon Europe WIDERA 2027). The selected candidate will lead a research group, foster international collaborations, mentor early-career researchers, and strengthen institutional excellence (>50% FTE). Research should align with the Institute’s scientific expertise and observational infrastructure, spanning one or more astronomy fields. Open to all nationalities. | | ▸ more | The Institute of Astronomy with National Astronomical Observatory at the Bulgarian Academy of Sciences (IANAO) invites expressions of interest from R3/R4 international researchers to co-develop a competitive research program for an ERA Chair call for proposals under the Horizon Europe WIDERA program in 2027.
The successful candidate would build and lead a research group , develop new international collaborations, support the development of early-career researchers and contribute to the Institute’s long-term research excellence and institutional development (>50% FTE).
The proposed research programme should align the candidate’s expertise with the Institute’s scientific strengths and observational capabilities. It may focus on a single research area or connect themes across the Institute’s departments.
This call is open to qualified candidates of all nationalities.
Candidate Profile
This opportunity targets internationally recognized researchers (generally at the R3 Established or R4 Leading career stage) who demonstrate:
- an outstanding record of research contributions in astronomy, astrophysics or a closely related field;
- experience leading research projects, teams or major collaborations;
success in attracting competitive research funding, or a strong capacity to do so;
- the scientific vision and leadership skills to establish a high-performing research group;
- the ability to develop international partnerships and contribute to postgraduate and early-career researcher development;
- an interest in strengthening research culture, governance and institutional capacity in line with European Research Area priorities.
ERA Chair Role
Upon successful selection and being granted ERA Chair funding, the ERA Chair holder will:
- Establish and direct a dedicated research group at the Institute.
- Mentor early-career researchers.
- Contribute to the long-term research excellence and scientific capacity building at IANAO.
- Strengthen national and international research partnerships
- Effectively use the available institute, national and international observational and computational infrastructure to drive their research program
IANAO at a Glance
The IANAO conducts astronomy and astrophysics research in three core research areas:
- Sun and Solar System: Solar and planetary science, solar activity, small bodies, comets, asteroids, and planetary systems.
- Stars and Stellar Systems: Stellar structure and evolution, stellar activity and magnetism, variable stars, binary systems, stellar populations, and exoplanetary research.
- Galaxies and Cosmology: Galaxy structure and evolution, active galactic nuclei (AGN), galaxy clusters, large-scale structure, and early Universe physics.
The institute manages the following observing infrastructure:
- LOFAR-BG: Advanced radio observing opportunities via the European LOFAR network and the LOFAR-BG station at NAO Rozhen.
- NAO Rozhen: Premier optical facilities including 2-metre, 1.5-metre, 0.8-metre and 0.7-metre (wide-field) telescopes alongside specialized instrumentation.
- Belogradchik Observatory: Dedicated optical observing facilities for complementary research.
In addition, IANAO has access to high-performance computing - in-house compute clusters, as well as access to the Discoverer Supercomputer in Sofia.
Eligibility & Mobility
In accordance with Horizon Europe ERA Chair regulations, the prospective Chair holder must not have a current or prior contractual relationship with IANAO at the time of formal proposal submission. The position requires structural relocation and a substantial on-site presence in Bulgaria throughout the project lifecycle.
Working Language
English is the official working language of the research programme and institutional management.
How to Submit an Expression of Interest
Interested candidates are invited to submit their application materials in English as a single consolidated PDF document. The submission must include:
1. Cover Letter: A short statement detailing your interest, current institutional affiliation, and overall availability.
2. Curriculum Vitae: A comprehensive CV featuring a full publication list and grant/funding history.
3. Research Vision: A concise outline (up to 2 pages) describing the proposed research program, its integration with the Institute’s facilities and scope, and its long-term vision for establishing a sustainable research group.
Please direct your submission by 15 January 2027 to:
Office of Institutional Strategy & Development
Institute of Astronomy with National Astronomical Observatory
Bulgarian Academy of Sciences
Email: ikostadinova @ astro.bas.bg, and include in CC: kkozarev @ astro.bas.bg
Subject Line: ERA Chair in Astronomy and Astrophysics – Expression of Interest
Final project conditions, budget allocations, and formal eligibility criteria are strictly governed by the published Horizon Europe call rules.
Submission of an Expression of Interest initiates exploratory discussions regarding scientific alignment and joint proposal preparation. It does not constitute a formal offer of employment or a guarantee of EU project funding.
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| PhD scholarship in Exoplanet Science - Discovery and Characterization of Small Planets | Closing date: 2027-01-22
Contact: Lars A. Buchhave |
| The Exoplanet Group at DTU Space, Technical University of Denmark, invites applications for a three-year PhD scholarship exoplanet science. Our group focuses on the discovery and characterization of small planets, from rocky worlds to super-Earths and sub-Neptunes. We combine observations, data analysis, modeling, and instrument development to understand the properties and diversity of these planets and the processes that shape their evolution. | | ▸ more | The Exoplanet Group at DTU Space, Technical University of Denmark, invites applications for a three-year PhD scholarship exoplanet science. Our group focuses on the discovery and characterization of small planets, from rocky worlds to super-Earths and sub-Neptunes. We combine observations, data analysis, modeling, and instrument development to understand the properties and diversity of these planets and the processes that shape their evolution.
You will join Prof. Lars A. Buchhave and Assistant Prof. Alexander Rathcke, and the growing Exoplanet Group at DTU Space (www.exoplanets.dk), located in the greater Copenhagen area. The group has access to data from world-class observatories, including JWST, precision RV spectrographs, and ESO facilities, and collaborates widely with researchers abroad.
Responsibilities and qualifications
We expect the successful candidate to develop and carry out original, independent research that complements the group's scientific interests. The specific direction will be shaped by the candidate's own interests and expertise. Possible research topics include:
-Characterizing exoplanet atmospheres through transmission or emission spectroscopy, atmospheric retrievals and modeling, JWST data analysis, or studies of stellar contamination.
-Detecting and characterizing low-mass planets through precision radial velocities, including RV data analysis, stellar activity mitigation, spectroscopic pipeline development, or 2ES instrumentation.
-Pursuing other closely related observational, theoretical, or computational questions that complement the group's research on exoplanets.
Application procedure
Your complete online application must be submitted no later than 22 January 2027 (23:59 Danish time).
To view the full announcement and to apply:
https://efzu.fa.em2.oraclecloud.com/hcmUI/CandidateExperience/en/sites/CX_2001/job/8608/?utm_medium=jobshare&utm_source=External+Job+Share
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| Postdoc in Exoplanet Science - Discovery and Characterization of Small Planets | Closing date: 2027-01-22
Contact: Lars A. Buchhave |
| The Exoplanet Group at DTU Space, Technical University of Denmark, invites applications for three-year postdoctoral positions in exoplanet science. Our group focuses on the discovery and characterization of small planets, from rocky worlds to super-Earths and sub-Neptunes. We combine observations, data analysis, modeling, and instrument development to understand the properties and diversity of these planets and the processes that shape their evolution. | | ▸ more | The Exoplanet Group at DTU Space, Technical University of Denmark, invites applications for three-year postdoctoral positions in exoplanet science. Our group focuses on the discovery and characterization of small planets, from rocky worlds to super-Earths and sub-Neptunes. We combine observations, data analysis, modeling, and instrument development to understand the properties and diversity of these planets and the processes that shape their evolution.
You will join Prof. Lars A. Buchhave and Assistant Prof. Alexander Rathcke, and the growing Exoplanet Group at DTU Space ( https://www.exoplanets.dk/ ), located in the greater Copenhagen area. The group has access to data from world-class observatories, including JWST, precision RV spectrographs, and ESO facilities, and collaborates widely with researchers abroad.
Responsibilities and qualifications
We expect the successful candidate to develop and carry out original, independent research that complements the group's scientific interests. The specific direction will be shaped by the candidate's own interests and expertise. Possible research topics include:
-Characterizing exoplanet atmospheres through transmission or emission spectroscopy, atmospheric retrievals and modeling, JWST data analysis, or studies of stellar contamination.
-Detecting and characterizing low-mass planets through precision radial velocities, including RV data analysis, stellar activity mitigation, spectroscopic pipeline development, or 2ES instrumentation.
-Pursuing other closely related observational, theoretical, or computational questions that complement the group's research on exoplanets.
Application procedure
Your complete online application must be submitted no later than 22 January 2027 (23:59 Danish time).
To view the full announcement and to apply:
https://efzu.fa.em2.oraclecloud.com/hcmUI/CandidateExperience/en/sites/CX_2001/job/8609/?utm_medium=jobshare&utm_source=External+Job+Share
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