Wojciech Kretowicz
Lead GenAI Model Validator
Warsaw, Masovian Voivodeship, Poland
Summary
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Rockstar🎓
Top SchoolWojciech Kretowicz is a machine learning engineer and leader with 7 years of experience who currently validates GenAI models at ING and co‑founded The Cognity to ship research-driven products. He combines deep theoretical pedigree—an MS in Data Science, three published papers and multiple national awards—with practical production experience building and auditing ML systems in finance and startups. His background ranges from quantitative analysis at Chamaeleon and risk work at Goldman Sachs to teaching advanced ML, giving him a rare blend of research, product and domain-savvy validation. An active contributor to model interpretability tooling (notably enhancements to the DALEX library), he favors explainable, testable models that bridge academic rigor and operational needs.
7 years of coding experience
3 years of employment as a software developer
Bachelor of Science - BS Inżynieria i analiza danych (Data Science), Bachelor of Science - BS Inżynieria i analiza danych (Data Science) at Warsaw University of Technology
English, Polish
Github Skills (18)
xai10
interpretation10
python10
machine-learning10
explainable-artificial-intelligence10
data-science9
pandas9
scikit9
scikit-learn9
data-visualization8
multi-process8
multiprocessing8
python-multiprocessing8
data-visualisation8
visualization8
Programming languages (7)
Github contributions (5)
ModelOriented/DALEX
Mar 2020 - May 2021
moDel Agnostic Language for Exploration and eXplanation
Role in this project:
Data Scientist
Data ScientistContributions:4 reviews, 18 commits, 26 PRs in 1 year 2 months
Contributions summary:Wojciech primarily contributes to the `dalex` repository, which focuses on model interpretability for machine learning. The commits demonstrate work on the `VariableImportance` class, including modifications to the loss functions and the integration of multiprocessing. They are also involved in creating and testing various datasets for the library. Overall, the user's commits revolve around enhancing the features and functionality related to model explanation and analysis.
xaishapagnosticblack-boxexplainable-ml
ModelOriented/weles
Sep 2019 - Nov 2019
Contributions:60 commits, 1 PR, 53 pushes in 2 months
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