McKenzie joined the UBC Thunderbirds as head coach in 2008 and left her post in 2013.[8] Kim Donaldson was her assistant coach from 2009 to 2011[9][10] Maria Gallo was her assistant coach from 2011 to 2013.[11]
In 2012, McKenzie led the Canada women's FISU 7s team to France.[3] In 2014, McKenzie was the Wellington Rugby Football Union's girls development co-coordinator.[12][6]
From 2015 to 2018, McKenzie developed and delivered programs as a game development officer for the Wanganui Rugby Football Union.[13] In 2018, She immigrated to Japan to become an assistant coach for the Japan women's national rugby sevens team.[13] Prior to this, she was hired five times for two weeks as a part-time resource coach for the Japanese sevens team. As assistant coach, McKenzie was also involved in academy branches across Japan.
In January 2019, McKenzie was appointed head coach of the fifteen-a-side team.[14][15] This role also includes the responsibility of proactively encouraging and promoting women players to become coaches.
McKenzie had her contract renewed as Japan's head coach after the 2021 Rugby World Cup, the Japan Rugby Football Union announced that it had extended her contract up to 31 March 2024.[16][17]
