I'm Carlos Diaz, a Senior Fullstack Engineer with 6+ years of experience building production web applications in the Node.js / React / TypeScript ecosystem. With a Master's in Information Technology from Universidad de Guadalajara, I specialize in owning features end-to-end — from REST/GraphQL APIs and MongoDB data layers to accessible, component-based UIs.

Since 2022 I've been embedded full-time in a US healthcare SaaS through Improving, shipping HIPAA-compliant features across a TypeScript microservices platform in self-managed Scrum teams. Before that I contributed to IBM's Carbon Design System, which shaped my design-system thinking and WCAG accessibility standards.

I integrate AI into real product workflows — generating vector embeddings to power semantic search — and accelerate delivery with AI pair-programming tools like Claude and GitHub Copilot, without compromising code quality. I'm Scrum.org certified (PSM I, PSD I, PSU I) and hold AWS Academy credentials in Cloud and Machine Learning Foundations.

I work daily with US-based clients in English, collaborate openly across product, design, and engineering, and consistently leave every codebase better than I found it.