genai engineer · madrid
I build GenAI systems
that reach production.
This page is lit by your real sky.
selected work
all work →-
GenAI Engineer at IDEA TSG
Building a GenAI platform from the ground up: retrieval-augmented assistants in production, evaluation, and the engineering scaffolding around them. Two RAG assistants live; a third is in progress.
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GenAI Consultant (RAG) at Zelebrix
Auditing and re-architecting a RAG system: hybrid retrieval with reranking, and an evaluation dataset to measure whether changes actually help.
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Data Scientist (GenAI) at Gestamp
A multi-agent system on Semantic Kernel, with Text-to-SQL under row-level access control and a golden-dataset evaluation, served as a streaming FastAPI service on AKS over hybrid RAG via Azure AI Search.
lab
all lab →-
campo-vivo — this portfolio
This site. A portfolio that is alive — the visitor's real hour, weather and moon light a calm, legible field — built with Astro, deployed on Cloudflare, with a small Voice running on Workers AI.
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Full-stack GenAI app
A full-stack application (frontend and backend) built without prior knowledge of the stack, using advanced prompting as the main development tool.
seedbed
all seeds →- Zelebrix phase 2 — self-generating documentation
- Language-learning app
- Collection of Claude skills & harnesses
- YouTube + LinkedIn reader into an LLM-wiki vault
- arXiv papers research assistant
now
the now page →- GenAI Engineer at IDEA TSG
- GenAI Consultant (RAG) at Zelebrix
- campo-vivo — this portfolio
- Full-stack GenAI app
contact
The fastest way in is email: guillehoyob@gmail.com. You’ll also find me on GitHub and LinkedIn.