The Environmental Microbiology group led by Prof. Marie Schölmerich at the Department of Environmental Systems Science, ETH Zurich, invites applications for a fully funded PhD position.

Our group explores the fascinating world of anaerobic microbiology – from the global to the microscopic scale. We focus on microorganisms that use ancient metabolic pathways to convert the greenhouse gases carbon dioxide and methane. Using approaches from metagenomics, classical microbiology, and biochemistry, we study their impact on biogeochemical cycles and identify the molecular mechanisms driving these processes. Our long-term goal is to understand fundamental principles of environmental processes and to inspire sustainable technologies.

This is a full-time position (100%), starting in spring 2026 or upon mutual agreement.

The PhD candidate will conduct research in re-wetted peatlands to characterize changes in microbial communities and the underlying molecular mechanisms. The project includes fieldwork, metagenomic and metatranscriptomic analyses, microcosm experiments, and isolation experiments.

We are looking for enthusiastic and curiosity-driven PhD applicants who bring several of the following interests, skills, and expertise:

• M.Sc. in Environmental Sciences, Microbiology, Biology, Bioinformatics or a related discipline
• Skills in microbiological and molecular biology techniques
• Prior experience with fieldwork and handling anaerobic microorganisms is desirable
• Excellent interpersonal communication and teamwork skills
• Strong oral and written communication skills in English

• Opportunities to engage in cutting-edge research with the potential for high impact in the field of environmental microbiology
• Encouraging and collaborative research environment
• Cutting-edge computational infrastructure
• Support for career goals through conference travel and workshops
• Exciting working environment, cultural diversity and attractive offers and benefits
• Family-friendly employer with excellent working conditions

In line with our values, ETH Zurich encourages an inclusive culture. We promote equality of opportunity, value diversity and nurture a working and learning environment in which the rights and dignity of all our staff and students are respected. Visit our Equal Opportunities and Diversity website to find out how we ensure a fair and open environment that allows everyone to grow and flourish.

We look forward to receiving your online application with the following documents:

• Cover letter
• CV including publication list
• Diploma and Transcript of Records
• Contact details of two references

Please note that we exclusively accept applications submitted through our online application portal. Applications via email or postal services will not be considered. The deadline for applications is 3 October 2025.

Further information about the Environmental Microbiology Group in the Department of Environmental Systems Sciences can be found on our website. Questions regarding the position should be directed to Prof. Marie Schölmerich [[email protected]] (no applications).

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