Orestis Tsinalis
Principal ML Engineer at Cleo
United Kingdom
Summary
👤
Senior🎓
Top SchoolOrestis Tsinalis is a Principal ML Engineer based in the UK with 14 years of engineering experience and a decade focused on applied AI/ML, combining deep academic training (PhD, MSc from Imperial College) with hands-on startup and enterprise impact. He has led end-to-end AI systems—from data lakes and low-latency recommendation engines to multi-million-sample video transformer training and real-time trading algorithms—owning architecture, CI/CD, and production deployments. As Founding CTO of BIGBAG he built a sub-100ms personalized recommendation stack and agentic search/synthetic data pipelines, and as a consultant he solved previously unsolved sports video event-detection problems at scale. He’s comfortable spanning teams and tech (Python, PyTorch, LangChain, GCP/AWS/Azure, Redis, Weaviate, BigQuery) and has repeatedly translated research-grade models into reliable, observable production services. Notably, his background in architecture and early-career construction/architecture roles surfaces in his systematic, infrastructure-first approach to designing scalable ML platforms.
14 years of coding experience
7 years of employment as a software developer
PhD Computer Science, PhD Computer Science at Imperial College LondonMEng Architecture, MEng Architecture at National Technical University of Athens
Stackoverflow
351reputation
118kreached
2answers
6questions
Github Skills (12)
graph6
pandas6
cypher6
mongodb6
jdbc6
python6
numpy6
matplotlib6
java6
kml1
google1
google-maps1
Programming languages (1)
Github contributions (3)
tevgeniou/BuybacksIssuers
Aug 2016 - Mar 2017
Contributions:18 commits in 7 months
networklocum/django-changes-on-save
Jul 2016 - Jul 2016
A django model mixin that allows a function to be run if there are changes to the model on save.
Contributions:2 PRs, 6 pushes, 2 branches in 3 days
changespythondjangodjango-modelpython-3
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