He kaiwhakawa arumoni, he kaiwhakawā hanga hoki a Royden, he tohunga hoki.
He hoa tautohe ia i Simpson Grierson i mua i tana neke ki te rōia motuhake i te tau 1996. I noho ia hei Hoa AMINZ i te tau 2001, ā, i whakawhiwhia ki a ia te Tohu Sir Ronald Davison mō te hiranga i roto i te Tuhi Tohu i taua tau. I whakawhiwhia a Royden ki te Mema Whakahonore Ora o AMINZ i te tau 2021 hei whakamihi i āna mahi ki te Whare Wānanga.
I waenganui i te tau 2002 me te tau 2011, ko Royden te heamana o te Taraipiunara Arotake Tika Tangata. Mai i tana hokinga mai ki te mahi tūmataiti, kua mahi ia hei kaiwhakatau i roto i te tini o ngā take arumoni. He kaiwhakatau anō hoki ia i raro i te Ture Kirimana Hanga 2002, ā, hei Heamana, hei mema rānei mō ētahi Taraipiunara motuhake me ngā Taraipiunara whakahaere. I whakaako a Royden i te Whakataunga Tautohe i Te Whare Wānanga o AUT i te taumata paetahi me te taumata paerua mai i te tau 2014 ki te tau 2024. He mema ia nō ngā Panel Whakataunga Tautohe me te Whakataunga o AMINZ, ā, he Kaiwhakatau Matua ia nō te Pokapū Whakataunga Tautohe o Aotearoa.
I te taha o Tākuta Anna Kirk rāua ko Diana Qiu, he kaituhi tahi a Royden mō ngā Rangahau Whakatau Take o Aotearoa.