She first worked for the Tongan civil service as Senior Executive Officer in the Prime Minister’s Department. She then became Assistant Secretary in the Tongan Department of Agriculture, Forests and Fisheries. She was also Assistant Secretary for Commerce in the Tongan Department of Labour, Commerce and Industry. From 1988, she worked for the Papua New Guinea Consulate-General in Sydney.[5]
In 1992, she returned to PNG working in the Papua New Guinea Department of Trade and Industry, later moving in 1994 to the position of Director of Corporate Services in the Investment Promotion Authority.
In 1998, she became Secretary to the National Executive Council, a position she held for ten years as the first woman to serve in the role.[5][6] She was also appointed as temporary head of the Prime Minister's Department for six months in 2008. She served as director on two corporate boards in the PNG financial sector, and worked as a freelance consultant for the two years prior to her diplomatic appointment.[7]
She served as chair of the Commonwealth Secretariat Board of Governors from 2016 to 2018, when she was succeeded by Cypriot High Commissioner Euripides Evriviades.[9][12]
Kiap’s term as High Commissioner ended in August 2022.[13]