Summary
Leon Luithlen is a Machine Learning Engineer and founder based in Berlin with eight years of experience building production ML systems at scale, including a multilingual recommender serving ~5 million users. He led development and infrastructure for a large codebase—covering modelling with PyTorch and LightFM, FastAPI services, CI/CD, Docker, Terraform and AWS—while shaping product roadmap and mentoring engineers. Leon now focuses on foundation models for non-language data at his startup, bringing an experimental psychology background to bridge human-centered design and ML. He has a history of pragmatic, structured engineering (RfCs, clean MRs) and a taste for crafting bespoke tooling, such as a Scala ML framework and custom KNN implementations.
8 years of coding experience
6 years of employment as a software developer
European Baccaleaureate, European Baccaleaureate at École Européenne de Bruxelles III
Bachelor of Science (BSc) Experimental Psychology and Philosophy, Bachelor of Science (BSc) Experimental Psychology and Philosophy at University of Bristol
German, French, English