I am a senior full-stack product engineer who builds production business platforms end-to-end. I translate ambiguous business requirements into practical software across frontend, backend, integrations, databases, infrastructure, and operational tooling.
I work with Node.js, TypeScript, Python, Express, FastAPI, Flutter, Vue, React, and Next.js to create web and mobile products. My experience includes authentication, dashboards, role-based access control, API design, and production deployment.
I specialize in CRM-style workflows, including lead pipelines, labels, custom fields, conversations, activities, files, and account-scoped permissions. I design relational data models and backend contracts that support reliable business operations.
I have built WhatsApp and Meta-integrated systems with webhooks, message persistence, WebSocket updates, human handoff, automation controls, media handling, and authoritative message status flows. I also develop AI assistant behavior using LLM tool calling, RAG knowledge bases, deterministic commands, and conversation-aware workflows.
My background includes finance, real estate, fitness, healthcare, pensions, credit, customer service, and trading platforms. I lead full delivery cycles from requirements and architecture through implementation, testing, deployment, maintenance, and client communication.
I am a native Spanish speaker with professional English proficiency and working knowledge of Portuguese, French, and German. I am based in Guadalajara, Mexico, and have delivered freelance projects remotely.