Juan is a chemical engineer working as Research Manager at ALLFED. His work focuses on studying the feasibility of production pilots and assessing the potential of various technologies for production of food resilient to global catastrophes, including: fermentation technology in general, single cell proteins from CO₂ or natural gas, sugars from plant fiber or CO₂, fats from microorganisms or hydrocarbons, microbial electrosynthesis, and non-biological synthesis of food.

He also works on policy transfer of academic studies of global catastrophic risks to policy action. To achieve this goal, in 2021 he cofounded the Observatorio de Riesgos Catastróficos Globales with Jaime Sevilla, where he currently works as director.