Postdoctoral Researcher – Machine Learning

Karlstad University; Leuven; Sur place; EUR 42 000 - 65 000; Plein temps

Avantages offerts par ce poste

Fully funded position

Résumé du poste

KU Leuven invites applications for a Postdoctoral Researcher in Machine Learning within the antiviral research program. The role focuses on developing advanced ML models to extract rich phenotypic fingerprints from high-content imaging of virus-infected cells and to prioritize compounds for further virological studies.

The successful candidate will engage in state-of-the-art AI for chemo-informatics, structural modelling, and omni-omics validation, contributing to the Atlas of Druggable

Qualifications

• PhD in machine learning, computer science, bioinformatics or equivalent.
• Strong ML modelling expertise with large-scale data.
• Experience with cellular imaging data is a plus.

Responsabilités

• Develop and deploy ML models on high-content imaging data to select antiviral compounds.
• Cluster compounds and infer mechanisms of action; integrate toxicity data to reduce false positives.
• Iteratively refine models with downstream validation data to expand the druggable antiviral target space.
• Interpret results to guide compound prioritization and experimental planning.

Connaissances

ML modelling

Deep learning

Data preparation

Data fusion

Imaging data

Chemo-informatics

Statistics

Formation

PhD in ML/CS/Bioinformatics

Outils

PyTorch

TensorFlow

CellProfiler

Description du poste

Postdoctoral Researcher – Machine Learning

KU Leuven is an autonomous university. It was founded in 1425. It was born of and has grown within the Catholic tradition.

The Laboratory of Virology and Antiviral Research (professor Johan Neyts) at the Rega Institute, KU Leuven, is seeking a highly motivated postdoctoral computational biology researcher to join our team in the context of the ERC Advanced Grant project ANTIVIRMAP. The project is carried out in a close collaboration with the Bioinformatics laboratory (professor Yves Moreau) at KU Leuven ESAT-STADIUS and Leuven.AI.

Responsibilities

Antiviral drugs are used to successfully treat infections such as with HIV and HCV. Yet, for most (life)-threatening and neglected infections, there are no such drugs. This leaves also critical gaps in epi- and pandemic preparedness. Antiviral drug discovery efforts typically focus on a few known targets. Yet, the biology of viral replication consists of many more complex processes that should harbor a wealth of undiscovered druggable targets. Thus, a large space of potential druggable biology is entirely ignored. We aim to fundamentally revolutionize antiviral target-discovery by uncovering this terra incognita. To that end, we developed high-throughput, multiplex, high-content multiparametric phenotypic antiviral assays. These allow to screen hundreds of thousands of molecules in our fully automated high biosafety screening facility CAPS-IT against multiple viruses. You will be responsible for the development and deployment of advanced machine learning models that leverage the full complexity of the imaging data and that allow the selection of molecules that will serve for in-depth virological studies. Ultimately, this will result in the establishment of the first-of-its-kind “Atlas of Druggable Antiviral Targets”.

You will join a dynamic, multidisciplinary and international virology-team with state-of-the-art infrastructure, but will at the same time also be embedded in a team with extensive expertise in AI and machine learning for computational biology and chemo-informatics. This will provide the opportunity to design novel machine learning approaches that leverage state-of-the-art AI methods (deep learning, generative AI, Bayesian modelling, active learning, etc.) to combine cellular imaging data, chemical compound structure, viral genomes and other omics data.

You will take ownership of the implementation and optimization of ML-driven models in our antiviral screening pipeline thereby unlocking the full richness of the multi‑parametric data using advanced AI. You will extract and interpret fully detailed phenotypic fingerprints at whole-well and single‑cell resolution in virus-infected cell cultures. AI models will be used to cluster compounds and infer possible mechanisms of action, identify peculiar activity signatures and integrate cellular toxicity profiles to reduce false positives and guide compound prioritization. The models will be populated and iteratively refined by converging evidence from downstream validation (such as chemo-genetics, structural modelling, functional assays, thermal proteome profiling and omni-omics), creating an adaptive and constantly evolving discovery pipeline. AI-driven interpretation will exploit the full complexity of the dataset to expand the druggable antiviral target space.

Profile

We seek a researcher with strong machine learning modelling expertise with experience in the analysis of challenging large-scale data sets. Experience with cellular imaging data or virology/immunology are a plus.

• Experience in creating and evaluating machine learning models.
• Familiarity with deep learning framework, such as PyTorch or Tensorflow.
• Experience in data preparation, preferably in a bioinformatics context (data cleaning, filtering, etc.).
• Expertise in data fusion and relevant algorithms (deep learning, generative AI, kernel methods, Bayesian methods).
• Preferably, experience with high-content imaging or cell imaging data (e.g., CellProfiler, convolutional neural networks).
• Knowledge of chemo-informatics and drug discovery.
• Strong practical statistical skills (batch effects, confounders, experiment design).

You hold a PhD in machine learning, computer science, bioinformatics or equivalent. You combine strong analytical skills with the ability to work independently and lead collaborative efforts. You are a team player, proactive, solution-oriented, and comfortable taking ownership of complex projects. Excellent English communication skills and a strong publication record are essential.

Offer

We offer a fully funded position with a competitive salary in a friendly and stimulating environment within one of Europe’s most innovative universities, in Leuven, a historic city at the heart of Europe, next to Brussels. You will have access to cutting-edge technologies and a broad collaborative network.

The contract offered is initially for one year, but can be extended, after a positive evaluation, for more years.

EEO & Diversity Statement

KU Leuven strives for an inclusive, respectful and socially safe environment. We embrace diversity among individuals and groups as an asset. Open dialogue and differences in perspective are essential for an ambitious research and educational environment. In our commitment to equal opportunity, we recognize the consequences of historical inequalities. We do not accept any form of discrimination based on, but not limited to, gender identity and expression, sexual orientation, age, ethnic or national background, skin colour, religious and philosophical diversity, neurodivergence, employment disability, health, or socioeconomic status. For questions about accessibility or support offered, we are happy to assist you at this email address.