PhD in Microbial Communities: The University of Cologne, one of Europe’s largest and oldest universities, is offering a PhD position in the field of microbial communities and their role in carbon cycling in permafrost soils in the Arctic. This research is critical for understanding the impacts of climate change on carbon dynamics and microbial processes in a warmer and wetter Arctic environment. The position is based at the Institute of Geology and Mineralogy within the Organic Geochemistry & Radiocarbon group, in collaboration with national and international research partners.
PhD Microbial Communities and Carbon Cycling in Permafrost Soils
Designation:
PhD Researcher in Geosciences/Environmental Sciences/Chemistry
Research Area:
Microbial Communities, Carbon Cycling, Biogeochemical Cycles, Isotope Geochemistry, Organic Geochemistry
Location:
University of Cologne, Cologne, Germany
Eligibility/Qualification:
- Master’s degree (M.Sc.) in Geosciences, Environmental Sciences, Chemistry, or related fields
- Strong background in biogeochemical cycles, isotope geochemical and/or organic geochemical methods
- Willingness to participate in 2-3 week long field campaigns in Arctic regions
- Ability to work independently and in a collaborative team environment
- Strong interest in technical and analytical work
- Proficient in English (spoken and written)
Job Description:
- Plan and conduct field measurements in Arctic regions, including organizing fieldwork, logistics, sediment and water sampling, and measurement of CO2 and CH4 fluxes
- Analyze organic matter composition and microbial communities using organic-geochemical techniques
- Conduct laboratory experiments and improve existing methods (e.g., CO2 and CH4 samplers, vacuum systems)
- Analyze data using statistical methods and publish results in peer-reviewed journals and conferences
- Work closely with national and international research partners
How to Apply:
Interested candidates should apply online at University of Cologne Job Portal with the following documents (without a photo):
- Letter of motivation
- CV
- List of publications (if applicable)
- Copies of certificates
Last Date for Apply:
March 23, 2026
For further inquiries, please contact Professor Dr. Janet Rethemeyer at janet.rethemeyer@uni-koeln.de.
Additional Information:
- 3-year doctoral position, part-time (27.88 hours per week)
- Flexible working time models and remote work opportunities
- Equal opportunities and diversity are promoted, with preferential consideration for women
- The position is available from May 1, 2026, with a fixed term until April 30, 2029
- Salary based on remuneration group 13 TV-L of the German public sector pay scale
