Hola! I'm Juan Luis Ruiz-Tagle, an AI engineer based in Barcelona.
For years I freelanced at Toptal, an exclusive network of the top 3% of freelance talent.
Lately, I'm reimagining marketplaces to create a business category that doesn't exist yet.
You can see some of my work on GitHub.
I post on X as @juanluisrto
Check out my blog posts
- Can neural networks predict the stock market just by reading newspapers? (2020)
- Scraping Google Search (without getting caught) (2020)
- What to expect when throwing dice and adding them up (2021)
- Generating fake data with pandas, very quickly (2021)
- Geographically weighted regression for spatial analysis in BigQuery (2021)
- 2021 Black Friday Analysis. Why Retailers Should Pay Attention (2021)
- Can We Transform Words into Geographies? (2022)
- How to build an MCP voice agent with OpenAI and LiveKit Agents (2025)
- Tuning Lightweight Transformers for Large-Scale NLP Tasks (2025)