Diego López started his professional career in an engineering center as analyst of different construction materials, analyzing chemical and physical-mechanical parameters. Four months later passed to a chemistry industry of emulsion polymers being an industrial filter. When six months contract finished, he was hired 3 months at Mercedes in final assembly replacing a worker who puts some pieces like pilots and steps on the vans. After his contract finished, he worked in an injection plastics factory preparing different pieces of cars to send them to some brands. After this little time there he started in a Eroski warehouse organizing dairy products until being hired by Azucarera as a laboratory assistant, analyzing the quality of different products produced along the manufacturing process.

In December 2022, he started working as a laboratory technician at CIC energiGUNE.