PhD student (m/f/x) in Observational Cosmology

Ruhr-Universität Bochum

44801 Bochum - Deutschland

Wissenschaftliche/r Mitarbeiter/in Arbeit Teilzeit Abend ab 01.05.2026

Beschreibung

**In order to fill a fixed-term position in part-time (29.8725 hours/week = 75%) starting on 01.05.2026 (or later at the candidate's [m/f/x] request), we are looking for a**

### PhD student (m/f/x) in Observational Cosmology

The observational cosmology group at the Ruhr-Universität Bochum (RUB), led by Prof. Hendrik Hildebrandt, is looking for a PhD student (m/f/x) with the earliest starting date of 1st May, 2026. The position is open to candidates from any country. The group provides a stimulating and international environment, with members from many different countries. The group is involved in the data analysis of several wide-field imaging surveys in the optical and infrared, most importantly KiDS, Euclid, UNIONS, and LSST@Rubin. The successful candidate (m/f/x) will work on the technical and theoretical development, simulation, and scientific analysis for one of the above mentioned projects.

Scope: part-time
Duration: fixed-term, 3 years
Start: starting on 01.05.2026 (or later at the candidate's [m/f/x] request)
Apply by: 2026-01-05

**Your tasks:**

● Weak gravitational lensing and/or clustering analysis of wide-field imaging surveys

● Exploration of new observables

● Simulation of certain aspects of these experiments

● Quantification and correction of systematic errors

● Presentation of results within collaboration and at international conferences

● Teaching assistant for exercises / lab-courses.

**Your profile:**

● Master’s degree in astronomy or astrophysics (by the time the position starts)

● Good understanding of cosmology theory and observations

● Proficient knowledge of English

● Extensive coding experience (preferentially in python)

● Excellent communication and presentation skills

[https://jobs.ruhr-uni-bochum.de/jobposting/5e1e3dc47aec7e1b32a191f6489295c819360d840?ref=AfA](https://jobs.ruhr-uni-bochum.de/jobposting/5e1e3dc47aec7e1b32a191f6489295c819360d840?ref=AfA)

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