Arnau Lopez.I’m Arnau Lopez
Full-Stack Developer
Design Engineer · Alcoy, Spain · EU citizen, open to relocation
1Aithoritycofounder & developerEU AI Act2026
2KibloiOS · live in US & Canada2026
3TypeScript · ReactReact Native · Next.js
4Python · FastAPISQL · Figma
I design the interface and write the code. I use AI in loops: conditions first, then rebuild what failed. ~2 years at Deutsche Post / DHL in Germany before that.
Selected work
Design
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2024–2026 )
~2 years at Deutsche Post / DHL, Paderborn
May 2026 )
Cofounded and developed Aithority
Aug 2026 )
TRACE live on the App Store (US)
Sep 2026 )
Kiblo live on the App Store (US & Canada)
Oct 2026 )
Started Hilo
Loop engineering.
I do not send the model one long prompt and hope the result is right. I run loops with AI: build against explicit conditions; if they fail, inspect why, then rebuild. I own the constraints and the ship. The model does not.
Skills
Top skills
Python, JavaScript, TypeScript, HTML / CSS, React, React Native / Expo, Next.js, FastAPI, SQL / SQLite, Firebase
Design
UX / UI, Figma, Design systems, Figma → code
AI tools
Claude (Anthropic), Cursor, Codex
Education
2026
Programming MOOC (Python) — in progress, University of Helsinki
Sept 2021 – June 2023
Plastic Arts Technician and Layout Assistant for Printed Graphic Products, EASD Alcoy
Aug 2026
Claude Code in Action, Anthropic
Aug 2026
Introduction to Generative AI, Google Cloud
Aug 2026
Introduction to Large Language Models, Google Cloud
Aug 2026
Introduction to Responsible AI, Google Cloud