The Swiss Federal Institute for Forest, Snow and Landscape Research WSL is part of the ETH Domain. Approximately 600 people work on the sustainable use and protection of the environment and on the handling of natural hazards.

The Research Group Dendrosciences uses tree rings to investigate and understand environmental impacts on tree growth and to reconstruct past environmental changes at scales ranging from minutes to millennia and from cells to ecosystems around the globe. From 1 November 2025 , we offer a 4-year position as a

As part of the Signatures of Global Late Glacial Climate Change in Tree-Ring Records (SiGnaL) SNF-project — co-led by the Dendrosciences group at WSL and the Laboratory of Ion Beam Physics (LIP) at ETH Zurich — you will contribute to understanding the nature and drivers of abrupt climate changes that occurred during the Late Glacial period, approximately 11 - 15 kyrs BP. Your work will focus on the collection, measurement, and integration of fossil wood and tree-ring material from various global sites. Through a multi-proxy approach — combining radiocarbon dating, stable isotope ratios, and quantitative wood anatomy — you will help to date and synchronize records across regions and reconstruct regional to global climate dynamics. This work will support the project's goal of improving our understanding of the Late Glacial climate system and enhancing the global radiocarbon calibration curve.

You have a Master's degree in Environmental Sciences, Earth Sciences, or a related field, and preferably have already gained experience with tree-ring data or palaeoenvironmental reconstruction. You are comfortable analysing and visualizing data in R or Python, and are motivated to publish your results in scientific journals. You enjoy laboratory work, working with large datasets, and have an interest in interdisciplinary and international research. You have a good command of spoken and written English, work in a structured, efficient, and independent manner, and bring strong team spirit and communication skills.