Jobbörse

Postdoctoral Fellow (f/m/x)

Veröffentlicht am 28. Okt. 2026

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Universitätsklinikum Köln AöR

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Vollzeit-Referenzwert: etwa 50.000 €/Jahr

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We are looking to support our rapidly growing team as soon as possible: Postdoctoral Fellow in Computational Cancer Evolution (f/m/x)

Department I of Internal Medicine - CECAD

Your tasks

We are looking for an ambitious postdoctoral researcher with a proven track record in computational cancer evolution to join our Integrated Cancer Research Laboratory at the CECAD Research Center in Cologne. In this role, you will reconstruct the clonal and subclonal architecture of chronic lymphocytic leukemia (CLL) and track its evolution under targeted therapies. Using bulk and single-cell sequencing data, you will infer tumour phylogenies and quantify intratumour heterogeneity, subclonal selection and genomic instability (e.g. copy-number alterations, whole-genome doubling and chromothripsis).

You will identify evolutionary trajectories leading to treatment resistance, relapse and Richter transformation. Furthermore, you will develop and apply computational methods based on evolutionary principles and integrate genomic, transcriptomic and spatial data with clinical outcomes. Your analyses will link evolutionary features to treatment response, MRD kinetics and survival.

For this work, the lab has access to blood and bone marrow samples from more than 900 patients with CLL treated within prospective clinical trials of the German CLL Study Group (GCLLSG), including samples taken before treatment and at relapse, linked to detailed clinical and measurable residual disease (MRD) data.

A PhD in bioinformatics, computational biology, statistics, physics, computer science or a related field
A proven track record in computational cancer evolution, demonstrated by first-author publications
Hands-on experience in reconstructing clonal and subclonal tumour evolution from sequencing data (e.g. clonal deconvolution, phylogenetic inference, mutational signatures)
Experience in copy-number and structural variant analysis from whole-genome or whole-exome sequencing data; experience with single-cell DNA or RNA sequencing data is a plus
Fluency in Python and/or R, and experience with reproducible workflows (e.g. Snakemake, Nextflow) on high performance computing clusters
Experience with longitudinal or clinical trial data and with haematological malignancies is a plus
Ability to work independently and in close collaboration with clinicians and wet-lab scientists
Excellent communication skills in English, both written and spoken

Everything but ordinary: You can expect a secure job in a challenging, innovative environment – including company pension schemes and regular working hours without business trips.
Work-life balance: Whether full-time or part-time, with or without children – with numerous support options, we will find the right path together.
Team spirit in R(h)ine culture: You will be warmly welcomed by an interdisciplinary team that values mutual respect and helpfulness.
Strong perspectives: We offer extensive training opportunities – so you can continuously grow and set new goals.

The Integrated Cancer Research Laboratory (www.al-sawaf-lab.com), led by Prof Othman Al-Sawaf and based at the CECAD and Department I of Internal Medicine, was founded in 2024 and is funded by a large Emmy-Noether-Grant of the German Research Council (DFG). The focus of the lab is to integrate multimodal analyses to study the plasticity, evolution and prognosis of cancer with a special focus on hematological malignancies. To this end, the lab utilizes a unique biobank with blood and bone marrow samples from patients treated within large (>900 patients) prospective clinical trials. The group is embedded in a network with many local collaborators, including the Collaborative Research Center (CRC) 1530 and the German CLL Study Group (GCLLSG), as well as many national and international partners in academia and industry. Previous work has been frequently cited (Al-Sawaf et al, N Engl J Med 2025; Al-Sawaf et al, Nature Medicine 2024; Al-Sawaf et al, Nature Medicine 2023; see Pubmed) and the aim of the lab is to continue producing highly impactful and patient-relevant results.

Postdoctoral Fellow (f/m/x)

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