Software Engineer @ Nubank · Bogotá, Colombia
I scale the core financial systems behind 128M+ customers at the world's largest digital bank. The best engineering embraces change, transforms complexity into elegant systems, and, above all, is built together.
| 128M+ | customers on systems I help scale at Nubank |
| 900+ h | of manual work returned through massive batch automation |
| $9B+ | in fintech volume made observable, zero-to-one OpenTelemetry rollout |
| 99.3% | shaved off a critical pricing engine: 50-minute runs to under 20 seconds |
| 90% | AWS cost reduction that vitally extended a startup's runway |
- Nubank (2025–now): scaling core financial systems for the world's largest digital bank; co-leading the unit's AI technical strategy, top 1% in adoption.
- Solvedex (2025): zero-to-one observability with OpenTelemetry across the Kotlin microservices beneath $9B+ in processing volume.
- Buk (2023–24): foundational Rails infrastructure for the strategic expansion into Brazil.
- Ethereum Bogotá (2022–23): Community Lead at ETHBogotá; taught hundreds of developers Solidity and directed hackathons through Devcon 2022.
- Earlier: enterprise pricing for Colombia's largest bank (Algoritmo), B2B audio streaming (Bido), and Claro Puerto Rico's national user base (Autonomo System).
Daily drivers
Also shipped with
- Schwarzschild: renders the image of a black hole by integrating photon geodesics. Python, general relativity.
- RocketLander: genetic algorithms evolve a rocket-landing control strategy under uncertainty · live demo
- LLM Chunking Summarizer: LangChain pipeline that turns long PDF transcripts into structured summaries.
More on the portfolio.
Physics and neuroscience reader, Rubik's speedcuber, seven languages and counting. 🇪🇸 native · 🇺🇸 bilingual · 🇩🇪 professional · 🇯🇵 🇨🇳 🇫🇷 🇧🇷 learning
Change is the only constant for improvement.