Ruben Saucedo...
Senior fullstack engineer building performant AI agent platforms.
Ketzal — interactive pet
About me
At Microsoft I own complex frontend surfaces end-to-end. The work I'm proudest of: a 30–40% performance gain on a product used by 100M+ people every day, a full redesign that shipped as the standard UI (4.1★ on the public marketplace), and serving as my team's Performance and Accessibility Champion. The common thread: making things fast, accessible, and resilient at a scale where small wins compound.
I'm Ruben. Five years at Microsoft, joined in 2020. Came up through UPIITA in Mexico City, did an exchange in the Basque Country, and started shipping production React at Wizeline for international clients.
Lately I'm focused on an AI agent platform — building orchestration, agent protocols, and toolchains that let production AI workflows actually work at enterprise scale. The frontend foundation is still load-bearing: state machines that don't lie, telemetry you can trust, UX that respects users when models misbehave.
On the side I run KetzalCode, an AI trainer platform I architected from scratch. In 2018 I co-invented an on-device machine learning system for Mexican Sign Language translation — it's a national patent.
Now
updated: 2026-05-15
This week: tightening reliability on an AI agent platform — latency budgets, retries, telemetry.
Shipping a platform that grounds AI agents against governed customer data. Owning the fundamentals — performance, telemetry, resilience — that make agentic products reliable in production. Mentoring teammates and authoring design specs.
On the side, building features into KetzalCode.
Currently reading: agent eval methodologies, anything by Simon Willison, and a lot of production AI agent code.
Contact
- LinkedIn:
- linkedin.com/in/enrique-saucedo-diaz
Open to interesting work. Reach out via LinkedIn.