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Category: Positions

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Postdoc Position in Theoretical Physics at Jagiellonian University in Kraków

The Institute of Theoretical Physics at the Jagiellonian Univeristy in Kraków, Poland, invites applications for a postdoctoral position. The sucessfull candidate will be expected to conduct a research programme in theoretical physics. We offer stable employment based on an employment contract at the renowned university as well as cooperation with the interdisciplinary academic community represented by well-known scientists. Application deadline: May 17th, 2026, 23:59:59 Warsaw time.

The candidates should:

  • hold at least a Master’s degree, Master of Science degree or an equivalent degree;
  • exhibit aptitude for research work.

Duration of employment: 33 months starting from October 1, 2026

Required documents include:

  • resume (CV),
  • personal questionnaire filled in by the Candidate (F/M),
  • copy of the master’s diploma or a doctoral diploma, if applicable,
  • information on the Candidate’s (F/M) scientific, teaching and organisational achievements,
  • declaration of the Candidate (F/M), confirming that the Jagiellonian University will be their primary place of work, should they be selected in the selection procedure,
  • statement under Article 113 of the Law on Higher Education and Science,
  • statement on acknowledging and accepting the rules and regulations concerning intellectual property management and commercialisation in force at the Jagiellonian University,
  • motivation letter,
  • list of publications (along with the respective publishing houses and the number of pages),
  • information concerning educational activities carried out by the Candidate (F/M), if any,
  • two recommendation letters concerning the Candidate’s (F/M) research work. The recommendation letters must be sent by e-mail directly by their authors to: ift(at)uj.edu.pl (in the e-mail subject please include: „Asystent IFT 2026: Name and surname”. At the Candidate’s request, the letters of recommendation may be made available to her/him.

Declaration forms (no. 5‒7) and personal questionnaire template (no. 2) can be obtained at: https://cso.uj.edu.pl/en_GB/dokumkandyd

For other details, such as benefits or remuneration, concerning the opening see:
https://praca.bip.uj.edu.pl/documents/145868730/160698977/1227.1101.104.2026_assistant_WFAiIS.pdf/0f0e0479-48b8-4539-a890-f0283d35cf90

Applications should be sent by email to: ift(at)uj.edu.pl
Subject: “Asystent IFT 2026: Name and Surname”

Application deadline: 2026/05/17 23:59:59 Warsaw time.

For further information please contact Institute of Theoretical Physics, e-mail address: ift(at)uj.edu.pl .

Please find here full details.

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Faculty Position in Theoretical Physics at Jagiellonian University in Kraków

The Institute of Theoretical Physics at the Jagiellonian Univeristy in Kraków, Poland, invites applications for a tenure-track faculty position at the assistant professor level. 

The sucessfull candidate will be expected to conduct an excellent research programme in theoretical physics and contribute to teaching at all levels. We offer stable employment based on an employment contract at the renowned university as well as cooperation with the interdisciplinary academic community represented by well-known scientists. Application deadline: May 17th, 2026, 23:59:59 Warsaw time.

The candidates should:

  • hold at least a doctoral degree;
  • have relevant scientific achievements;
  • take active part in scientific life;
  • have experience in teaching work hold PhD in physics or a related field.

Additional requirements necessary for employment (indicated in order of priority):

  • documented achievements in the field of theoretical physics, evaluated with consideration of the period in which they were obtained.
  • aptitude for teaching.

Duration of employment: 33 months starting from October 1, 2026

Required documents include:

  • resume (CV),
  • personal questionnaire filled in by the Candidate (F/M),
  • copy of the doctoral diploma or a diploma confirming the Candidate’s (F/M) habilitation degree, if applicable,
  • information on the Candidate’s (F/M) scientific, teaching and organisational achievements,
  • declaration of the Candidate (F/M), confirming that the Jagiellonian University will be their primary place of work, should they be selected in the competitive selection process,
  • declaration under Article 113 of the Law on Higher Education and Science,
  • declaration on acknowledging and accepting the rules and regulations concerning intellectual property management and commercialisation in force at the Jagiellonian University,
  • motivation letter,
  • list of publications (along with the respective publishing houses and the number of pages),
  • information concerning educational activities carried out by the Candidate (F/M), if any,
  • doctoral dissertation or habilitation dissertation review, if applicable,
  • two recommendation letters concerning the Candidate’s (F/M) research and teaching work.

The recommendation letters must be sent by e-mail directly by their authors to: ift@uj.edu.pl (in the e-mail subject please include “Adiunkt IFT 2026: Name and Surname”. At the Candidate’s request, the letters of recommendation may be made available to her/him.

Declaration forms (no. 5‒7) and personal questionnaire template (no. 2) can be obtained at: https://cso.uj.edu.pl/en_GB/dokumkandyd

For other details, such as benefits or remuneration, concerning the opening see:
https://praca.bip.uj.edu.pl/documents/145868730/160693037/1227.1101.103.2026_assistant+professor_WFAiIS.pdf/2cf4bdeb-1d00-4a60-8898-d393d6f5fbb6

Applications should be sent by email to: ift(at)uj.edu.pl .
Subject: “Adiunkt IFT 2026: Name and Surname”

Application deadline: May 17th, 2026, 23:59:59 Warsaw time.

For further information please contact Institute of Theoretical Physics, e-mail address: ift(at)uj.edu.pl .
Please find here full details.

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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.

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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

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6 month temporary research engineer Position at the ARTEMIS Laboratory, Nice

Responsibility for the Pre-Stabilized Laser (PSL) subsystem within the Virgo project, including the development, installation, and maintenance of the laser system at the detector site. Participation in laser developments for third-generation gravitational-wave detectors is also envisioned. The individual will be part of the "Lasers and Cavities" team and assigned to the Virgo project. Application deadline May 13th 2026.

The Research Engineer will primarily take full charge of the PSL subsystem, which involves: Implementing laser system upgrade projects: (i) designing and testing new laser systems in accordance with Virgo upgrade projects; (ii) planning different project phases; (iii) installing and maintaining laser systems used by the interferometer on-site.
Participating in the commissioning of the detector.
Conducting missions to the experiment site in Pisa, Italy, and participating in meetings for the Virgo Collaboration / VirgoLab / International Gravitational-wave Network (IGWN). Contributing to developments regarding future laser systems for 3rd generation gravitational-wave detectors. The Research Engineer may also provide technical support for experimental studies within the “Lasers and Cavities” team concerning 3rd generation detectors: Work on quantum aspects in detectors, including the demonstration of quantum radiation pressure noise and the generation of “bright squeezing”. Generation and control of higher-order propagation modes for the reduction of internal thermal noise in mirrors. Study of parametric instabilities that limit power increases in advanced detectors and implementing methods to eliminate them.

Please find here full details.

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Permanent research engineer position at the ARTEMIS Laboratory, Nice, France

There will be a permanent research engineer position at the ARTEMIS Laboratory, Nice, France. The main responsibility for this position will be the Virgo laser. The application process will open soon, but interested candidates should contact
Nelson Christensen <nelson.christensen (at) oca.eu>
or Oualid Chaibi <walid.chaibi (at) oca.eu>
for more information. The job description is below.
In addition, there is a temporary (6 month) position (application until may 13th) also available, also for the Virgo laser. Again, contact Walid or Nelson for more details.

JOB PROFILE

Unit Description

  • Unit Code: UMR7250
  • Unit Name: ARTEMIS
  • Director: Nelson CHRISTENSEN
  • City: Nice
  • Regional Delegation: 20 – Côte d’Azur
  • Institute: CNRS Engineering

JobDescription

  • BAP (Professional Activity Branch): C (Sciences of Matter Engineering and Chemical Instrumentation)
  • Corps: Research Engineer (M/F)
  • Job Category (Emploi-type): C1B42 – Expert in experimentation development

Mission

  • Responsibility for the Pre-Stabilized Laser (PSL) subsystem within the Virgo project, including the development, installation, and maintenance of the laser system at the detector site.
  • Participation in laser developments for third-generation gravitational-wave detectors is also envisioned.
  • The individual will be part of the “Lasers and Cavities” team and assigned to the Virgo project.

Activities The Research Engineer will primarily take full charge of the PSL subsystem, which involves:

  • Implementing laser system upgrade projects: (i) designing and testing new laser systems in accordance with Virgo upgrade projects; (ii) planning different project phases; (iii) installing and maintaining laser systems used by the interferometer on-site.
  • Participating in the commissioning of the detector.
  • Conducting missions to the experiment site in Pisa, Italy, and participating in meetings for the Virgo Collaboration / VirgoLab / International Gravitational-wave Network (IGWN).
  • Contributing to developments regarding future laser systems for 3rd generation gravitational-wave detectors.

The Research Engineer may also provide technical support for experimental studies within the “Lasers and Cavities” team concerning 3rd generation detectors:

  • Work on quantum aspects in detectors, including the demonstration of quantum radiation pressure noise and the generation of “bright squeezing”.
  • Generation and control of higher-order propagation modes for the reduction of internal thermal noise in mirrors.
  • Study of parametric instabilities that limit power increases in advanced detectors and implementing methods to eliminate them.

Skills

Main Competencies

  • The candidate (holding an engineering degree or a PhD in physics or applied physics) must demonstrate skills in interferometric optics and in-depth knowledge of metrology.
  • Appreciated knowledge and practice in:
  • Photonics/Lasers
  • Analog and digital electronics
  • Signal processing
  • Interfacing experimental setups
  • Drafting scientific procedure documents & project management

Professional Environment Knowledge

  • Safety, specifically laser safety.

Operational Know-how

  • Cleanroom work and particulate contamination control.

Language Skills

  • Proficiency in English (reading, speaking, writing) is required; drafting documents in English will be recurrent.
  • Proficiency in French is appreciated.

Soft Skills

  • Frequent teamwork with researchers, technicians, and engineers from ARTEMIS, the Côte d’Azur Observatory, and Virgo collaboration partners.
  • Participation in frequent meetings with collaboration partners and industrial actors.

Tools – Software Used

  • Optical design software (notably Zemax), structural and thermal calculation software (ANSYS, COMSOL), and interfacing software (Labview).

Evolution Trends

  • The primary evolution will be effective participation in the construction of the Einstein Telescope project following its acceptance by European authorities.

Context

The ARTEMIS laboratory was created around the theme of gravitational waves and their detection, contributing to the Virgo, LISA, Einstein Telescope, and MIGA projects. The laboratory was a pioneer in developing the Virgo detector in Pisa, Italy, which, alongside the American LIGO detectors, has contributed to numerous gravitational-wave observations. For instance, in the case of detection GW170817, the precision of the source direction estimation obtained with three detectors allowed for the observation of optical counterparts, enabling the identification of the wave’s source.

Within the Advanced Virgo+ project, the laboratory is responsible for the high-power laser source circulating in the giant 3 km interferometer. This is the framework for recruiting a Research Engineer specialized in laser interferometry. The recruit will work in an environment ranging from interferometer physics to gravitational-wave source detection, compact object astrophysics, modeling, cosmology, metrology, and laser stabilization.

The work will be conducted within the “Lasers and Cavities” team, which is responsible for the PSL sub-system, integrated into the ARTEMIS Virgo group and the newly established VirgoLab structure.

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Call for postdoctoral positions University of Paris-Saclay

The Graduate School of Physics at Université Paris-Saclay, France, is launching a second call for applications within its postdoctoral fellowship programe: UPSaclay-STAR-φ, supported by the EU Marie Skłodowska-Curie COFUND programme, 2024 call. Application deadline: July 15th 5:00PM.

This call will recruit up to 22 international postdoctoral researchers, for 24-month projects in one of the 40 laboratories of the Physics Graduate School, at the SOLEIL synchrotron, or at the French National Metrology Lab (LNE), working on various fields from fundamental to applied physics. This includes the following two Theoretical Physics institutes :

  • Institut de Physique Théorique (IPhT), Saclay
  • Theoretical Physics Division of IJCLab, Orsay

The application deadline for the second call is July 15th, 2026 and the expected start of the fellowships is between early 2027 and October 2027.

Applicants will propose their own research project, aligned with the Graduate School and partners’ wide-ranging fields, from fundamental to applied physics. They are free to choose the institute in which they would like to carry out their research.

To be eligible, applicants must hold a doctoral degree before the application deadline, and must not have resided or carried out their main activity in France for more than 12 months during the 3 years preceding the deadline for applications.

For further information and application instructions, please visit:
http://www.cofund-physics.universite-paris-saclay.fr/

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Postdoctoral Position in Transient and Multi-messenger Astronomy Data Science in Greenbelt

The General Coordinates Network (GCN) Project and High Energy Astrophysics Science Archive Research Center (HEASARC) at NASA’s Goddard Space Flight Center (GSFC) invite applications for postdoctoral research positions in the fields of transient and/or multi-messenger astrophysics. Applicants should have a strong astrophysics research track record and deep expertise in the technical disciplines of full-stack software development, data visualization, React, TypeScript, and Python. Experience in Apache Kafka and cloud computing would also be beneficial.

The successful applicant will join the GCN team, who operate NASA’s time-domain and multi-messenger transient alert system. We envision the postdoc will contribute to the technical development of GCN, serve as the primary interface to observatories who are onboarding to distribute alerts through GCN, and help to moderate GCN Circulars and the GCN helpdesk. They will have a central role in shaping Goddard’s multi-messenger science output. This position includes approximately 40% of the applicant’s time to devote to their own research projects, which we encourage to be aligned with the science topics enabled by GCN and data from Goddard supported missions.

GSFC is home to over 100 Ph.D. astronomers, including project teams for Swift, Fermi, TESS, HST, JWST, and Roman, as well as ample computational resources. GSFC is also a member of the LIGO Scientific Collaboration. Through the Joint Space-Science Institute (JSI), GSFC is a partner in the Zwicky Transient Facility project.

The position is for one year, renewable for up to three years upon mutual agreement and funding availability, and will be hired through the University of Maryland, Baltimore County on the CRESST II collaborative agreement with GSFC. The nominal starting date is in September 2026, but alternate dates are possible depending on availability. Candidates must have a Ph.D. in astronomy, physics, or a related field by the date of appointment.

Candidates should provide a cover letter, CV (including publication list), and a statement of research interests. Short-listed candidates will be asked to supply three letters of reference at a later date. Completed applications received by Friday, May 22, 2026 will receive full consideration. All application materials and inquiries should be sent to: https://cresst2.breezy.hr/p/f588ea6ec42d-postdoctoral-position-in-transient-and-multi-messenger-astronomy-data-science/apply

This position is planned for a salary range of $78,400 – $83,500. Salary and benefits are competitive, commensurate with experience and qualifications. This position is in-person or hybrid (some in-person, some remote). For more information about the proposed research, contact Dr. Judith Racusin (judith.racusin(at)nasa.gov). For information on CRESST II or UMBC, contact Dr. Don Engel (donengel(at)umbc.edu). UMBC is an equal opportunity employer and welcomes all to apply. EOE/M/F/D/V.

Please find here full details.

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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.

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LIGO Laboratory Job Opening: Project Mechanical Designer/Drafter, LIGO Caltech

The LIGO Laboratory has a job posting for a Project Mechanical Designer/Drafter, LIGO Caltech, reporting to Arnaud Pele.

Anticipated start date: As soon as possible
Full-time position
Regular-staff position

Feel free to contact the LIGO Laboratory Staff Relations and Administrative Manager, Lorna Campbell, for more information, OR feel free to contact the Hiring Manager Arnaud Pele, for more information about this position.

Please find here full details.