Hi, I'm Felipe Bereilh
Building systems that learn from data
I design and deploy ML systems, from prototype to production.

About Me 👋
I'm based in Barcelona, where I spend my days teaching computers to recognize patterns and make predictions. Whether it's spotting trends in messy data or building models that actually work in production, I focus on solutions that move the needle.
What I Do
Tools I Like
My Journey
I started in marketing analytics at LATAM Airlines, where I learned that numbers tell better stories than slides. That curiosity led me to Mercado Libre, where I spent two years as a data analyst building ETLs and fixing messy catalog data. Turns out I liked wrangling data more than I expected.
The shift to data science happened at PedidosYa and La Nacion, where I got to build actual ML models: audience clustering, purchase prediction, A/B testing for paywalls. At Preply, I focused on product analytics and optimizing mobile funnels.
Now at ByRatings as a Senior Data Scientist, I take models from idea to production. I still do a lot of what data engineers do (pipelines, infrastructure, making sure things don't break), because that's how you ship ML that actually works.
Let's Talk 💬
Working on something interesting? Need a second opinion on your ML pipeline? Or just want to chat about data? Drop me a line.