Postdoctoral researcher in cosmological modelling and inference (M/F)

Job Summary

Category
Post-doctoral Positions and Fellowships
Institution
CNRS/Institut d'Astrophysique de Paris
Number of Positions Available
1
Duration
2 Years
Could the duration be extended?
No
Work Arrangement
In-Person
In-Person Location(s)

Paris
France

Job Description

Mission
You will work at the Institut d'Astrophysique de Paris (IAP) within the research group led by F. Leclercq and G. Lavaux, as part of the INFOCW project funded by the French National Research Agency (ANR).
The project aims to develop innovative forward modelling and Bayesian inference methods for the analysis of cosmological data, particularly from the ESA's Euclid mission. We are particularly interested in the implementation and optimisation of models simulating galaxy surveys, the definition and improvement of relevant statistical summaries, and the application of implicit (simulation-based) inference techniques to constrain cosmological parameters. You will be responsible for defining and implementing research projects within this framework, in collaboration with team members at IAP, partners of the Aquila consortium, and the "Learning the Universe" collaboration. You will contribute to producing independent and original research within the team, exploring new approaches and publishing your results in peer-reviewed scientific journals.
 

Further details: https://cloud.aquila-consortium.org/s/Postdoc_ad_INFOCW


Activities
• Software development (C, C++, Python, JAX) and high-performance optimisation on various
architectures (CPU, GPU).
• Testing and validation of algorithms and codes on simulation sets.
• Implementation and improvement of Bayesian inference algorithms.
• Analysis of Euclid DR1/DR2 data (galaxy catalogues) by applying the developed pipelines.
• Scientific writing (articles, working notes, documentation) and presentation of results at
international meetings and conferences.
• Collaboration with research group coordinators and other team members.
 

Compensation and Benefits

Compensation Type
Salary
Currency
365
Compensation Range
$2,800USD to $3,500USD
Included Benefits
  • Research-driven environment: collaborate with leading experts in a dynamic, intellectually stimulating setting.
  • Work-life balance: 44 days of annual leave, flexible working arrangements.
  • Financial well-being: subsidised on-site restaurant with affordable meal options, up to 75% reimbursement for public transport, €300/year sustainable mobility allowance (e.g. biking), retirement pension contributions, discounts on sports and culture, French language classes
  • Accessibility: conveniently located site in the centre of Paris with excellent public transport links.
  • Family support: paid maternity/paternity leave and parental bonus.
  • Health coverage: social security coverage, paid sick leave, contribution to private health insurance costs.
Compensation Notes

This is this gross salary rate, and range is based upon experience.

Application Details

Application Instructions
Please submit a CV, a list of publications, a cover letter, and a research project of approximately 3 pages via the CNRS portal: https://shlink.aquila-consortium.org/postdoc-infocw-apply. Have up to 3 letters of recommendation uploaded by researchers familiar with your work using the following link: https://shlink.aquila-consortium.org/postdoc-infocw-letters. For full consideration, application materials (including reference letters) should be received by 15 January 2026. Informal inquiries about the position are welcome and should be addressed to Florent Leclercq ([email protected]). Please note that the position advertised at https://shlink.aquila-consortium.org/postdoc-iap-apply is an independent vacancy.
Publication Start Date
2025 Dec 15
Application Deadline
2026 Jan 15

Inquiries

Name
Florent Leclercq

Support

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