Vassilis Sioros
Technical Lead at ahedd Digital Innovation Hub
Athens, Attica, Greece
Summary
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Senior🎓
Top SchoolVassilis Sioros is a Technical Lead and Principal ML Engineer with 8 years of experience building scalable backend systems and production-grade machine learning solutions across startups and research labs in Athens. He’s a PhD candidate researching knowledge-guided and rule-validated generative AI, backed by an MSc in Data Science & Machine Learning and a solid software engineering foundation from NKUA. Vassilis has moved between hands-on backend roles (high-throughput sportsbook systems, HSM-integrated payment projects) and leadership positions including CTO and now leading ML teams at a digital innovation hub. He blends research-grade generative modeling—published work on GANs for nanorough surfaces—with practical deployment, observability and SRE-minded practices (Grafana/Prometheus, stress testing frameworks). Known for mentoring teams and introducing agile metrics and lifecycle rigor, he focuses on turning complex AI research into reliable, real-world products. Colleagues describe him as a pragmatic engineer who frames novel AI methods around safety, rules and measurable business impact.
8 years of coding experience
5 years of employment as a software developer
Doctor of Philosophy - PhD, Knowledge-Guided and Rule-Validated Generative AI, Doctor of Philosophy - PhD, Knowledge-Guided and Rule-Validated Generative AI at National & Kapodistrian University of AthensMasters of Sciences - MSc, Data Science and Machine Learning, 9.5, Masters of Sciences - MSc, Data Science and Machine Learning, 9.5 at National Technical University of Athens
Greek, English
Stackoverflow
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Github Skills (130)
dependency-management10
python10
ioc-container10
spotify-api10
flask-application10
flask-restful10
singleton10
refactoring10
spotify10
jetbrains10
pythonic10
api10
music10
dependency-manager10
mp310
Programming languages (12)
Github contributions (5)
billsioros/MMGP
Jun 2018 - Nov 2018
Multiagent Multitarget Geospatial Pathfinding
Contributions:160 PRs, 172 pushes, 12 branches in 4 months
geospatialmultiagentmultitargetgispathfinding
WilhelmStein/BF-Block-Level-Administration
Jan 2018 - Aug 2020
Contributions:8 PRs, 10 pushes, 8 branches in 2 years 8 months
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