Aranteiti joined fisheries in 2004, working with the Research and Monitoring Unit doing mostly coastal fisheries surveys, including fish count and invertebrate survey. In 2010 he joined the PIPA Team and also went on the 2015 PIPA Expedition. He is a member of the PIPA Scientific Advisory Committee (SAC) and a counterpart for visiting scientists to do research in Kiribati on Fish and Corals. He is very interested in science and is keen on learning new science and technology from scientists first-hand as a government observer on board!