The University of Kassel is a modern and growing University with round about 25.000 students. It has an extraordinary wide section with expertise of nature, technique, culture and society.

University of Kassel, Civil and Environmental Engineering, Institute for Water, Waste, Environment (IWAU) – Hydrogeology Research Group. The position is to be filled by November 2022.

Research Assistant / Doctoral researcher in Hydrogeology (m/w/d), EG 13 TV-H, fixed-term contract and part-time position (currently 30 hours per week)

Closes: 30.08.2022
Date of Hire: 01.11.2022
Reference: 35272

Please send your application with the usual informative documents, stating the reference number in the subject line, via the online form. We have compiled further information for you in our FAQ.

In exceptional cases, we will also accept your application documents in paper form addressed to: The President of the University of Kassel, 34109 Kassel, Germany, or via mail to bewerbungen[at]uni-kassel.de, stating the reference number.

In the case of postal applications, please submit only copies of your documents (no folders), as these cannot be returned. All documents will be destroyed after completion of the selection process in compliance with data protection regulations.

This is a part-time position with 75 percent of the working hours of a full-time employee. This is a fixed term-position of three years with the opportunity of obtaining a doctoral degree in the field of hydrogeology and reactive transport modelling (position for academic qualification corresponding to § 65 HHG i. V. m. § 2 Abs. 1 Satz 1 WissZeitVG).

The position at the University of Kassel is part of a collaborative research project between the Universities of Tübingen (Germany), Vienna (Austria) and Kassel (Germany). The DFG-funded project will advance the process-based understanding of the sedimentological, hydrogeological and microbial-ecological controls that modulate the ability of aquifers to reduce nitrate via denitrification. The project aims at quantitatively linking aquifer hydraulic and biogeochemical properties with the reactivity of aquifer sediments. Via coupled hydrogeological, sedimentological and microbiological field and lab investigations and reactive-transport modelling, the project aims to yield reliable estimates of aquifer-specific reactivity estimates to feed larger-scale predictive models. Prospective doctoral students will benefit from a collaborative research network of different geoscientific disciplines and the opportunity to participate in field campaigns at sites in Germany and Austria.

The successful candidate will be based out of the University of Kassel, including periodic research stays at the University of Tübingen, and will be co-supervised by Prof. Dr. Adrian Mellage and Prof. Dr.-Ing. Olaf A. Cirpka.

The successful candidate will develop a series of reactive transport models at different scales, informed by the experimental and field results of the experiments and field work performed by the collaboration partners. One-dimensional models with detailed reaction networks, calibrated to the data collected, will be the basis for upscaling reactive transport using travel-time and relative-reactivity based approaches. Ultimately, the goal of this position is to construct a virtual floodplain aquifer that mimics natural sedimentological features and their physical and reactive make-up and captures the effect of physical heterogeneity on the ability of aquifers to reduce nitrate.


  • Applicants must hold an M.Sc. degree in environmental engineering, environmental science, geoscience, or an equivalent discipline. (the degree required for this position must have been obtained by the starting date at the latest).
  • Very good knowledge of English is required.

Beneficial additional qualifications:
The ideal candidate should have an in-depth understanding of environmental physics and biogeochemistry. Preference will be given to candidates with demonstrated skills and experience in numerical modeling of subsurface processes.

Applicants are requested to submit a single PDF file containing:
(1) Your motivation for applying to the position and your research interests (written in English)
(2) Curriculum vitae (written in English)
(3) Copy of transcript(s)
(4) Contact information for 2 references

For further information please contact Prof. Dr. Adrian Mellage, E-Mail: adrian.mellage(at)uni-kassel.de, and Prof. Dr.-Ing. Olaf A. Cirpka, E-Mail: olaf.cirpka(at)uni-tubingen.de.

Our offer:
As an employee of the University of Kassel

In addition, you will benefit from the advantages of employment in the public service such as:

You can find more jobs at stellen.uni-kassel.de

The protection of your personal information is very important to us, so we will handle your personal information with care. By your application, you allow us the storage and use in the sense of the Hessian Data Protection and Freedom of Information Act. You can object to this at any time. Your personal data will be deleted.

Information according to Art. 13 DSGVO for the application process at the University of Kassel can be found at:

The University of Kassel is very interested in the professional satisfaction of its employees. It is distinguished as a family-friendly university and, in the interests of equal opportunities, strives to offer everyone the same opportunities for development and to counteract existing disadvantages. It promotes the Family Welcome Service and also the Dual Career Service for positions that are scientifically and academically filled. One of the strategic goals of the University of Kassel is to significantly increase the proportion of women in research and teaching. Applications from women are therefore particularly welcome. Seriously handicapped and equivalent applicants are given preference if they have the same suitability, qualifications and professional performance. Full-time positions are generally divisible (except when filling civil servant positions). Applications indicating the Position Number, which may be in digital form, should be sent to the President of the University of Kassel, 34109 Kassel, Germany or bewerbungen@uni-kassel.de, quoting the applicable reference number.
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