Hakkı Şimşek
Head Of Data
Bali, Indonesia
Summary
👤
Senior🎓
Top SchoolHakkı Şimşek is a hands-on data leader with 8+ years of experience architecting multi-tenant data platforms and shipping ML models into production across B2B and B2C businesses. As Head of Data, he has built pipelines processing tens of millions of records daily and scaled systems to handle billions of QR codes per day while improving forecasting accuracy and ad ROAS. His work spans AWS and GCP stacks, BigQuery, Airflow/Composer, dbt, and modern LLM tooling (OpenAI, Anthropic, Bedrock, LangChain) used to power regulatory Q&A and Text2SQL agents. He combines product-minded engineering—reducing invoicing from a week to a day and boosting conversion and LTV metrics—with rigorous testing and automation practices. Based in Bali, he writes about data science on Medium and maintains an active GitHub presence, bringing a rare blend of operational scale, research rigor from PhD-level training, and competitive discipline (2200+ lichess chess rating).
8 years of coding experience
5 years of employment as a software developer
Doctor of Philosophy - PhD, Industrial Engineering, Doctor of Philosophy - PhD, Industrial Engineering at Koç UniversityBachelor's degree, Economics, 3.41/4.00, Bachelor's degree, Economics, 3.41/4.00 at Boğaziçi University
Turkish, English
Github Skills (6)
python-scripts4
python3
plotly3
holoviews2
altair2
bokeh1
Programming languages (1)
Github contributions (5)
HakkiKaanSimsek/Machine-Learning
Mar 2018 - Aug 2018
Contributions:46 commits, 59 pushes, 1 branch in 5 months
HakkiKaanSimsek/Python
Aug 2018 - Dec 2020
Contributions:4 commits, 12 pushes, 1 branch in 2 years 4 months
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