Sandra graduated in industrial design from Strate College. She then started her own company before working briefly at Fing (New Generation Internet Foundation) and Peclers Paris, a consulting agency in trends, styles and innovation. In 2014, Sandra received a social entrepreneurship certificate from ESCP Europe. In April 2013, she co-founded Glowee, a bio-lighting system without electricity consumption or emission of light pollution thanks to bioluminescence. Its goal is to bring lighting to communities in urban areas.