Alex Gidiotis
Senior Machine Learning Engineer at Expedia Group
London, England, United Kingdom
Summary
👤
Senior🎓
Top SchoolAlex Gidiotis is a Senior Machine Learning Engineer based in London with nine years of experience building and scaling production ML systems across travel, food delivery, and mobility platforms. He has led end-to-end ML work—from research and prototyping during a PhD in Machine Learning and NLU to deploying real-time dynamic pricing and central forecasting pipelines at companies like Beat, Deliveroo, and Expedia Group. Alex combines hands-on model engineering with MLOps and platform tooling, frequently translating research ideas into reliable, low-latency services. He has also led AI engineering teams and been involved in hiring, proving aptitude for both technical leadership and talent development. Comfortable working at the intersection of big data, forecasting, and NLP, he brings a pragmatic focus on production robustness and measurable business impact. An academic-trained researcher who thrives in product-driven environments, he often bridges advanced ML methods with operational constraints to ship usable AI.
9 years of coding experience
5 years of employment as a software developer
Doctor of Philosophy - PhD, Machine Learning and Natural Language Understanding, Doctor of Philosophy - PhD, Machine Learning and Natural Language Understanding at Aristotle University of Thessaloniki (AUTH)Master of Engineering - MEng, Electrical and Electronics engineering, Master of Engineering - MEng, Electrical and Electronics engineering at University of Thessaly
Greek, English
Stackoverflow
73reputation
4kreached
3answers
2questions
Github Skills (56)
lstm-neural-networks10
pytorch10
python10
data-science10
classification10
attention-mechanism10
machine-learning10
recurrent-neural-networks10
text-classification10
bidirectional10
keras10
lstm10
deep-learning10
tensorflow10
lstm-model10
Programming languages (4)
Github contributions (5)
AlexGidiotis/PMC-StructuredAbstracts-Dataset
Jun 2019 - Sep 2020
Code to obtain the PMC-SA. A dataset for the summarization of scientific articles.
Contributions:20 commits, 1 PR, 19 pushes in 1 year 3 months
datasetpmcscientific-articlesscientificsummarization
AlexGidiotis/keras-CF-NADE
May 2018 - Jun 2020
Contributions:11 commits, 10 pushes, 1 branch in 2 years
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