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Justus Liebig University Giessen
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PhD Student in Experimental Space Biology and Biophysics Justus Liebig University Giessen in Germany
Degree Level
PhD
Field of study
Microbiology
Funding
Part-time employment at 75% for three years, fixed-term, with salary according to the collective labour agreement of the State of Hessen, E 13 TV-H. The offer also includes a company pension scheme, child allowance, special payments, and free local public transport through the LandesTicket Hessen.
Deadline
Nov 10, 2026
Country
Germany
University
Justus Liebig University Giessen
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About this position
Justus Liebig University Giessen is seeking a doctoral researcher in Experimental Space Biology and Biophysics to join an externally funded research project associated with Exocube, an experiment selected by the European Space Agency for the ExoBio platform on the exterior of the International Space Station.
The project investigates biological and molecular systems under real space and radiation conditions, with particular emphasis on the activation, growth, stress responses, and survival of selected microorganisms. The researcher will work with microfluidic systems for controlled rehydration, activation, and fixation of biological samples, combined with in-situ fluorescence and absorbance measurements.
Research activities will include cultivating, preparing, and characterizing microbial and biological samples; contributing to scientific testing, verification, and flight-sample integration; preparing and conducting microfluidic experiments and synchronized Ground Reference Experiments; and analyzing fluorescence, absorbance, and other in-situ data collected during the ISS mission.
The position also involves microbiological, biophysical, and complementary analytical post-flight studies of returned samples, as well as scientific documentation, publications, presentations, and project reports. The doctoral researcher will collaborate with international scientific partners, ESA, DLR, and industrial partners.
This interdisciplinary research environment connects space biology, biophysics, microbiology, radiation biology, and experimental space research within the Professorship of Experimental Physics with a focus on Space Physics at the Institute of Experimental Physics I.
Funding details
Part-time employment at 75% for three years, fixed-term, with salary according to the collective labour agreement of the State of Hessen, E 13 TV-H. The offer also includes a company pension scheme, child allowance, special payments, and free local public transport through the LandesTicket Hessen.
What's required
Completed Master's or equivalent university degree in biology, microbiology, biophysics, biotechnology, or a related natural-science discipline; experience with experimental laboratory work involving biological or microbial samples; good knowledge of microbiological methods and practical experience cultivating microorganisms; experience with fluorescence, absorbance, or comparable optical measurement techniques; experience with microfluidic systems or biological stress and exposure experiments is advantageous; experience in scientific data analysis and programming skills such as Python or MATLAB are advantageous; very good command of English; ability to work independently, systematically, and carefully; strong teamwork and communication skills; interest in interdisciplinary and international collaboration; and willingness to learn new experimental and analytical methods. The Master's degree must be completed by the start of employment.
How to apply
Apply through the online form by 10 November 2026. Submit a motivation letter describing your relevant scientific background, experimental skills, and experience; a CV; Bachelor's and Master's degree certificates with transcripts; and, if applicable, a current transcript and expected graduation date. Include your earliest possible starting date.
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