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Hugh Osborn

1 month ago

Postdoc in Exoplanet Atmospheres at the University of Bern University of Bern in Switzerland

Degree Level

Postdoc

Field of study

Chemistry

Funding

Fully funded postdoctoral position funded by the SNSF Exo-Neptune Census starting grant. The position is funded for 2 years with a possible 1-year extension. Postdoc salaries are internationally competitive; annual gross salary for 2025 is CHF 91,215 for full-time employment, including the 13th month salary. Travel support for multiple international conferences or research visits per year is included, and child allowance plus maternity/paternity leave are offered.

Deadline

Aug 31, 2026

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Country

Switzerland

University

University of Bern

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Keywords

Chemistry
Astronomy
Atmospheric Science
Earth Science
Bayesian Statistics
Statistics
Physics

About this position

Postdoctoral position in exoplanet atmospheres at the University of Bern

This is a fully funded postdoc in the Space Research and Planetary Sciences group at the University of Bern, Switzerland, working on the atmospheres of transiting sub-Neptunes. The project is part of the SNSF-funded Exo-Neptune Census starting grant led by Assistant Professor Hugh Osborn.

The research focuses on population-level analysis of sub-Neptune radii, masses, and atmospheres to understand the formation, composition, and evolution of these planets. A major part of the work will involve extracting atmospheric volatile abundances and bulk planetary volatile compositions from JWST observations. The postdoc may also contribute to the IN/AT-SYNC JWST large programme and help obtain additional JWST transmission spectra of sub-Neptunes.

Ideal applicants should have strong experience with Bayesian statistical methods, exoplanet transit modelling, atmospheric physics, and JWST time-series/spectroscopic analysis. Knowledge of atmospheric chemistry, radiative transfer, and retrieval methods is especially relevant. The post also values theoretical expertise linking sub-Neptune interiors and atmospheres.

The position is 100% fixed-term, funded for 2 years with a possible 1-year extension. It includes competitive salary, travel support for conferences and research visits, and standard benefits such as child allowance and maternity/paternity leave. Postdocs are expected to assist with teaching and may supervise Masters projects and mentor PhD students.

Application deadline: 2026-08-31 at 23:39 CEST. Apply with a cover letter, academic CV, PhD diploma if available, two academic references, and your earliest possible start date. Applications can be submitted by email to [email protected] or through the online application form.

Funding details

Fully funded postdoctoral position funded by the SNSF Exo-Neptune Census starting grant. The position is funded for 2 years with a possible 1-year extension. Postdoc salaries are internationally competitive; annual gross salary for 2025 is CHF 91,215 for full-time employment, including the 13th month salary. Travel support for multiple international conferences or research visits per year is included, and child allowance plus maternity/paternity leave are offered.

What's required

Applicants should have expertise in applying Bayesian statistical methods to astronomical datasets, experience modelling exoplanetary transits, deep knowledge of atmospheric physics (including chemistry and radiative transfer), and a proven track record as an independent researcher. Experience extracting spectra from JWST time-series data and retrieving atmospheric abundances is especially useful. Additional theoretical expertise connecting sub-Neptune interiors and atmospheres is beneficial. The role also expects teaching support and possible supervision/mentoring of students.

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