Juan Llamazares

My Path

From aerospace to startups. The honest version.

2021–2025

Aerospace Engineering @ UPM

Rigorous technical training: FEM, systems engineering, numerical methods. Built the foundation, but spent increasing time reading about startups and company-building.

2022–2025

Founded Level

Started a community from zero. Grew it to 500+ members with partnerships across Google, Airbus, ESA, and Iberia. First real lesson in ownership.

2024–2025

Arquimea, Space Division

Internship working on thermo-structural projects for flight hardware, plus financial planning and operational dashboards for multi-million-euro programs.

2025

Shanghai, Xiji Incubator

4 months in a YC-style incubator building Walled. This is where everything clicked: the pace, the ambition, the lack of permission-seeking. Decided this is the world I want.

2025–now

Building Walled

Currently building the MVP. Pre-traction, pre-funding. Documenting the process.

Download CV →LinkedIn →

For a more traditional breakdown of my professional experience, see here →