The University of Cologne, one of Europe's largest and oldest universities, is offering a postdoctoral research position in the Statistical Physics and Quantitative Biology group led by Professor Michael Lässig at the Institute for Biological Physics. This position is part of the Collaborative Research Center 1310, focusing on Predictability in Evolution, and is embedded in a vibrant interdisciplinary environment at the interface of physics and quantitative biology. The successful candidate will join a team working on predictive analysis of viral and cancer systems, utilizing biophysical and immunological molecular models. Current projects include the evolution and control of fast-evolving viruses such as influenza and SARS-CoV-2, as well as the immunogenicity of cancer cell populations. The group is funded by the European Research Council (ERC) and collaborates with leading experimental and theoretical researchers in evolutionary processes. Applicants should have a doctoral degree in theoretical physics or a closely related field, a strong background in statistical physics, and a genuine interest in evolutionary biology and data analysis of complex dynamical systems. Excellent written and oral communication skills in English are required, along with a proven track record in quantitative analysis and research relevant to the group's focus. The position is full-time (39.83 hours per week), available immediately, and initially limited to two years with the possibility of extension. The salary is based on remuneration group 13 TV-L of the German public sector. The University of Cologne offers a diverse and supportive working environment, flexible working models, opportunities for remote work, and extensive training and occupational health management. The institution is committed to equal opportunities and diversity, with preferential consideration for women under the Equal Opportunities Act of North Rhine-Westphalia. To apply, candidates should submit their application online via the University of Cologne job portal, including proof of qualifications and two letters of reference, referencing Wiss2511-10. The application deadline is December 31, 2025. For further inquiries, contact Stephan Kleinbölting at skleinbo@uni-koeln.de. For more information about the research group, visit the lab website .