Alexandros Metsai
Senior Machine Learning Scientist at Ringier AG
Zurich, Zurich, Switzerland
Summary
👤
Senior🎓
Top SchoolAlexandros Metsai is a Senior Machine Learning Scientist based in Zurich with 10 years of experience building research-driven, production-ready ML systems that serve millions of users. He began in deep learning research with peer-reviewed publications and transitioned to product-focused engineering, deploying models used by news professionals and human rights teams. At Ringier he shapes scalable algorithms and the cloud infrastructure that operationalizes them, blending algorithmic rigor with practical software engineering. His background spans recommender systems, anomaly detection, video summarization and multimedia forensics, reflecting a strong applied research-to-production arc. An active contributor to open-source documentation—improving usability in the widely used librosa audio library—he brings an uncommon attention to developer experience alongside model performance.
10 years of coding experience
5 years of employment as a software developer
Master of Engineering - MEng, Computer Engineering, Master of Engineering - MEng, Computer Engineering at Aristotle University of Thessaloniki (AUTH)
Greek, Albanian, English
Stackoverflow
1,907reputation
133kreached
92answers
1question
python
top-5%
Github Skills (18)
python10
matplotlib10
audio-analysis10
librosa10
documentation10
signal-processing7
digital-signal-processing7
music7
neural-network6
deep-learning6
tensorflow6
scikit-learn6
tqdm6
dataframe6
numpy6
Programming languages (7)
Github contributions (5)
librosa/librosa
May 2019 - May 2019
Python library for audio and music analysis
Role in this project:
Technical Writer
Technical WriterContributions:38 commits, 3 PRs, 8 comments in 1 day
Contributions summary:Alexandros's contributions primarily focused on adding plot examples to the documentation within the librosa library. These examples demonstrate the usage of various librosa functions, covering a wide range of audio analysis techniques. By incorporating `plt.show()` in numerous example code blocks across different modules, the user enhanced the documentation by enabling immediate visualization and understanding of the functions' outputs. This directly improves the usability and educational value of the library's documentation.
python-librarydtwpythonlibrosaaudio
AlexMetsai/parallel-distributed-systems
Mar 2016 - May 2019
Contributions:1 release, 11 pushes, 1 branch in 3 years 2 months
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