Joseph worked as the music director at the St. Vincent’s School for Handicapped Children where he had attended as a child. He founded The New Victorian School in Port-au-Prince in 1991. In 1996, he founded and served as executive director of the Walenstein Musical Organization, a non-profit that provides music education, training, and performance opportunities to children in South Florida. Joseph rebuilt The New Victorian School after it was destroyed by a fire in 2000, and again ten years later after it was destroyed on January 12, 2010, during the 2010 Haitian earthquake.