# Guillermo Sicilia Hernández

> Full-stack developer based in Tenerife, Spain. Builds and automates web apps with Next.js, Supabase, Odoo and n8n.

Software developer working on production web apps, ERP integrations (Odoo) and workflow automation (n8n). Currently building and maintaining a company's corporate website and client portal, plus a self-hosted n8n infrastructure automating business workflows.

## Experience

- Software Developer — Tena Asesores y Abogados S.L. (May 2026 – present): self-hosted n8n infrastructure with Workers and Redis queues (1000+ weekly executions), Odoo integrations, Next.js/Supabase web apps.
- Software Developer, work placement — Tena Asesores y Abogados S.L. (Feb–May 2026): custom Odoo models and logic in Python, n8n automation.
- Software Developer — Eviden (Jul 2023 – Dec 2024): management platform for Orange, Oracle SQL, TIBCO ecosystem.
- Web Developer, work placement — Atos (Mar–May 2023): full-stack development with Spring Boot and Angular.

## Projects

- [tenaasesores.es](https://www.tenaasesores.es/): Corporate website in production — Next.js, live data from Odoo, deployed on Vercel.
- [Syntia](https://app.syntia.es/): Client portal for an advisory firm — Next.js, Odoo and Supabase.
- [Sovereign Stack](https://homelab.guillermosh.com): Homelab guide, changelog and blog — Docker, Pi-hole, n8n, Tailscale.
- [CVOrotava-Team-Manager](https://github.com/GuillermoSH/CVOrotava-Team-Manager): Sports management app for a volleyball club — TypeScript.
- [CVOrotava-back](https://github.com/GuillermoSH/CVOrotava-back): Java API for club data management (payments, players, licenses).

## Stack

Next.js, React, Node.js, Java, Spring Boot, TypeScript, Tailwind CSS, PostgreSQL, Oracle SQL, Supabase, Odoo, n8n, Docker, Vercel, GitHub Actions.

## Contact

- Email: siciliahernandezguillermo@gmail.com
- LinkedIn: https://www.linkedin.com/in/guillermo-sicilia-hern%C3%A1ndez-95861523b/
- GitHub: https://github.com/GuillermoSH