João Vitor Mello
Data Engineer. I build end-to-end data solutions — from pipelines and modeling to APIs, visualizations, and analytics products.
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Jul 21, 2026
I rated every match of the 2026 World Cup. Which ones came out on top?
I rated all 104 World Cup matches across five criteria, with no serious methodology whatsoever. See the best, the worst, and build your own version.
Jul 15, 2026
Behind the World Cup Analytics: Data, Architecture, and Real Problems from the 2026 World Cup
How I built a football analytics product from scratch: where the data came from, the architecture decisions that mattered, and the real bugs that only show up when you actually know the sport.
Jul 8, 2026
Hello, world!
My first article here.