He studied Graphic Designs at the Academy of Art in Rotterdam. In 1938, he was sent to Indonesia for a military service where he worked as lithography for the Dutch Topographical service. In 1951, Smit received his Indonesian citizenship. He taught graphic and lithograpy at ITB / Bandung Institute of Technology from 1950 – 1956, he moved to Bali, and has lived and painted there ever since. He gave a lot of supports to the development of the naive style painting, which later known as the Young Artist Style in the early 1960s. For this, he received the Gold Medel Dharma Kusuma Award from the Balinese provincial Gtovernment in 1992.