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EPFL, the Swiss Federal Institute of Technology in Lausanne, is one of the most dynamic university campuses in Europe and ranks among the top 20 universities worldwide. The EPFL employs more than 6,500 people supporting the three main missions of the institutions: education, research and innovation. The EPFL campus offers an exceptional working environment at the heart of a community of more than 18,500 people, including over 14,000 students and 4,000 researchers from more than 120 different countries.

PhD student in environmental geomicrobiology (EML) 1

Mission

The Environmental Microbiology Laboratory (EML) studies microbial and abiotic processes in the subsurface with a focus on contaminant transformations. The research performed at EML aims at understanding the mechanistic underpinnings of these processes and at providing science-based solutions to environmental challenges including aquifer contamination, nuclear waste disposal, and greenhouse gas emissions. In addition, constraining the role of reduction mechanism on uranium isotope fractionation is a long-term goal of the laboratory. 

Main duties and responsibilities

  • Investigate the isotopic fractionation of uranium during its abiotic reduction by ferrous iron
  • Carry out experiments with seawater and variable organic carbon
  • Collaborate with a senior microscopist to investigate reduction processes at the nanoscale
  • Perform laboratory experiments
  • Participate in general laboratory tasks
  • Perform first-class scientific research
  • Write publications
  • Attend and present at international conferences.

Profile

  • Educational background in geochemistry and preferably inorganic geochemistry 
  • Laboratory experience in geochemistry is a must
  • Experience with natural isotopes desirable but not necessary
  • Computer skills: Word, Excel, Powerpoint, some experience with at least one programming language
  • Language: fluent English
  • Self-motivation, scientific curiosity, critical thinking and rigor in experiment work, good communication skills and ability to work as part of an international team
  • Enthusiasm, willingness to learn, good organizational skills

We offer

  • An opportunity to develop a scientific career in environmental geochemistry an opportunity to learn high-end techniques and approaches
  • The opportunity to build a scientific network in the field of geochemistry
  • Excellent research conditions and competitive remuneration
  • A multi-cultural and stimulating scientific environment

Informations

Your application should contain:

  • Motivation Letter
  • Detailed CV
  • At least 2 references willing to write a recommendation letter. No need to include the letters of recommendation at this stage.

 

Application deadline: 20.01.2026

 

Duration: 1-year fixed-term contract that is renewable to 4 years according to EPFL rules

 

For questions or more information, please contact: chantal.melllier@epfl.ch










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