Hi, I’m Rafael Xavier

I’m a Staff Machine Learning Engineer at Mercado Libre. I currently lead image generation and editing for seller listings, and worked for two years on content moderation.

I wasn’t always in tech. I have a M.A. in Economics and worked in a public policy think tank for the better part of a decade. I’m a self-taught engineer.

Here you’ll find my blog where I mostly write about building machine learning systems at a large tech company.

Feel free to connect with me on X, GitHub or LinkedIn!