Data & Analytics

Data science & Machine Learning January 26, 2026

Unlocking financial insights: How Nubank powers personalized experiences with foundation models

Scaling predictive intelligence to accelerate Nubank’s AI-First vision

Data science & Machine Learning December 10, 2025

How prompt engineering helps us communicate with machines and why it matters

Practical principles for crafting clear, reliable prompts that scale AI collaboration

Data science & Machine Learning November 25, 2025

3 Lessons from implementing Controlled-Experiment Using Pre-Experiment Data (CUPED) at Nubank

Drawing from years of running large-scale A/B tests across millions of customers and hundreds of metrics, our Experimentation Platform team shares three lessons from implementing CUPED at Nubank.

Data science & Machine Learning November 12, 2025

Explaining Financial Models by Deleting Transactions

We explain how we use the LOTO method to understand the real impact of each transaction on financial models.

Data science & Machine Learning October 17, 2025

Data and AI culture: How Nu’s philosophy became a competitive advantage

At Meetup #6 in Nu Mexico, Moisés Rojo showed how values, technology, and data culture make Nubank more efficient and closer to customers

Data science & Machine Learning September 17, 2025

Giving Foundation Models a Notion of Now

Exploring how encoding transaction timestamps as time deltas rather than absolute dates boosts AI model performance and generalization.