Ruki has received commissions to create major installations for highly visible locations within the city of Port Moresby and Goroka. Among these is a steel wall sculpture for the University of Papua New Guinea and another for the Agricultural Bank. His work can be found in the collections of the Australian Museum in Sydney, Australia, and the Museum fur Volkerlunde und Switzseriches in Basle. In 2003 he attended a symposium in China, where he worked alongside metal artists from 23 countries.

These days Ruki lives and works in Port Moresby. He is committed to exploring through his work themes that reflect the cultural diversity of his country.

Ruki says about his work, "I really like working as a metal sculptor, especially on a large scale. Some artists draw [their designs] but I just think about it. I work without stopping from 6am to 6pm and I complete a piece in a week - I never do a drawing, just take it from my head. I just cut them in pieces and put them together. All my work is traditional, not western style - it has to come from Papua New Guinea, and I explain the stories. For instance, I like to create pigs because my grandfather used to sleep with the pigs in the house."