Sione has wide ranging education, leadership and construction experience in related disciplines. He has been an educator, naval trainer in sytems and operation, engineering, and construction. At Tonga power, he spearheaded new technologies in wind and solar on outer islands of Tonga. He joined Live & Learn Tonga in 2024 where he leads the planning and implementation of WASH programs, ensuring access to clean water, sanitation, and hygiene education. He works closely with communities, partners, and field teams to deliver sustainable and inclusive WASH solutions across project sites.