He began working in St. Louis, Missouri in 1982, then moved from restaurant to restaurant. Josselin moved to Hawaii and began making food that fused the cuisines of Hawaii's many ethnic groups in 1985. In 1990 Josselin opened a restaurant in Kapaa, Kauai. He opened several other restaurants, then suddenly sold all of his restaurants and went on hiatus. By 2015, he had opened three restaurants in Kauai and a restaurant in Las Vegas.