👋 Hi, I'm Eugene Yan.
I work at the intersection of consumer data & tech to help customers via machine learning systems. I write about effective data science, learning, and career to help readers.
Just released: How To Be An Effective Data Scientist 🚀, a free email course.
Other resources:
- Papers, Articles, and Blogs on Applied Machine Learning
- Template for Python Project with Automation and Collaboration
- Workflow for Experimentation with
Jupyter,Papermill,MLflow
Latest
2025 Year in Review
14 Dec 2025 · 5 min · [ life ]
An eventful year of progress in health and career, while making time for travel and reflection.
Product Evals in Three Simple Steps
23 Nov 2025 · 9 min · [ eval engineering production ]
Label some data, align LLM-evaluators, and run the eval harness with each change.
Advice for New Principal Tech ICs (i.e., Notes to Myself)
19 Oct 2025 · 14 min · [ leadership engineering career 🩷 ]
Based on what I've learned from role models and mentors in Amazon