She is a registered nurse, midwife, auditor, mediator, facilitator and her current role as the Kaiwhakahaere of Tōpūtanga Tapuhi Kaitiaki o Aotearoa, New Zealand Nurses Organisation (NZNO). Kerri represents 49,000 members (nurses, midwives, kaimahi hauora, and tauira) including 3,500 Māori members a position she has held fulltime since 2013.

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Kerri has worked on the International Council of Nurses, Global Nurses United, and South Pacific Nurses Forum and the World Health Organisation (WHO) Human Resources for Health project.