Dohyun Moon is a Beamline Senior Scientist at the Pohang Light Source II in South Korea. His main work is supporting users visiting the facility for supramolecular crystallography experiments. Dohyan’s research involves characterising the structure of single crystals using crystallography. He is constantly researching the inside of unknown materials and getting good singe crystals challenges and motivates him every day. Hear him talk about his light source journey, aspirations for the future and advice for those considering entering into the realm of light sources.