Marios Kefalas
Team Lead AI Scientist at zooplus
Munich, Bavaria, Germany
Summary
👤
Senior🎓
Top SchoolMarios Kefalas is a Team Lead AI Scientist with eight years of experience building data-driven ML and GenAI solutions, currently leading AI efforts at zooplus from Munich. With a strong foundation in pure mathematics and a PhD in Computer Science focused on predictive maintenance and time-series analysis, he excels at turning complex numerical patterns into actionable insights and always asks "Why?" behind model outputs. His background spans applied research, B2B SaaS time-series engineering, stakeholder-facing GenAI products, and consulting for industrial clients like KLM Engine Services. He has hands-on experience supervising students, teaching machine learning in Python, and shipping tools that bridge research and production. Notably, he combines academic rigor in predictive maintenance with practical product development—making him adept at both exploratory data analysis and building scalable, business-focused ML systems.
8 years of coding experience
7 years of employment as a software developer
High School Degree, Mathematics and Physics, 19.1, High School Degree, Mathematics and Physics, 19.1 at High-SchoolBachelor Degree (4 year degree), Pure and Applied Mathematics, ( 8.24/10.), Bachelor Degree (4 year degree), Pure and Applied Mathematics, ( 8.24/10.) at National & Kapodistrian University of AthensDoctor of Philosophy - PhD, Doctor of Philosophy - PhD at Leiden University
English, Greek, Dutch, German
Github Skills (19)
python10
evaluation9
machine-learning9
tensorflow9
deep-learning9
deep-neural-networks8
ml8
neural-network8
data-science8
neural-architecture-search6
keras6
llm6
automated-machine-learning5
llmops5
pytorch4
Programming languages (5)
Github contributions (5)
MariosKef/automated-rul
Feb 2021 - Oct 2021
Contributions:37 commits, 2 PRs, 33 pushes in 7 months
MariosKef/CIMPLO
Dec 2020 - Mar 2021
Contributions:55 pushes, 8 branches in 3 months
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