He received his education at
Wanganui College,
Auckland University and the
University of Oxford. He was appointed Official Translator of the Tongan Prime Minister's office in 1972 and then served for several years in the Tongan Foreign Service, including as High Commissioner to the United Kingdom in 1989–1992 and as Consul General in San Francisco from 1992 to 1996. From 1998 to 2002 Tuita was governor of
Vava'u. In 2002 he was appointed to the cabinet of Tonga with the title minister of Agriculture, Forestry, Fisheries and Nutrition. In May 2006 he was appointed as Minister of Lands Survey, Natural Resources and Environment in a Cabinet reshuffle. He was appointed acting governor of
Vava'u in 2009. In 2010, he was appointed as Tongan Consul General to the United States again, with an office based out of San Francisco, California. He currently lives with his wife, Princess Salote Mafile'o Pilolevu Tuita, and their family, dividing their time between residences in Tau'akipulu and
Hillsborough, California. == Marriage ==