👋 Hi there! My name is
Most people call me Leo
- 💼 My career so far:
- Amazon Web Services: AI Specialist. I help customers design and deliver production AI applications that solve real business problems.
- Sephora APAC: Director of Data & Product. I led Data Science & AI, Machine Learning, Data Engineering, Data Analytics, Business Intelligence (BI), Product, and UX.
- Edelman: Data Science Director.
- Tokopedia (now ByteDance): Data Science Lead.
- Micron Semiconductor: Data Science and Engineering Manager.
- General Assembly: part-time Data Science Instructor.
- 🛠️ I have 16 years of experience building and leading AI/ML products:
- Industries: retail, e-commerce, public relations, and semiconductor manufacturing.
- Expertise: GenAI, NLP, LLMOps, recommender systems (RecSys), MLOps, data engineering, data analytics, computer vision, tabular machine learning, search, and data platforms.
- I've built end-to-end data products spanning algorithms, data engineering, backend systems, microservices, and frontend applications.
- Tech: Python, AWS, GCP, and on-premises technologies.
- ✍️ I write and teach:
- Technical articles on Medium (1,000+ followers).
- Co-authored an ACL 2020 paper on unsupervised topic modelling of e-commerce reviews.
- Commissioned Zilliz articles on embedding generation and production semantic similarity search.
- A commissioned AWS SageMaker video course series for KnowledgeHut.
- 🏆 Recognition: LinkedIn Top Voice (blue badge) in 2025, and Top Writer in Artificial Intelligence on Medium multiple times.
Let's connect on LinkedIn.
My Vibestats:
- My Vibestats dashboard visualizes my work with AI coding agents across multiple machines and currently supports Claude Code and Codex. 🌟 GitHub: stephenleo/vibestats
