[6] She joined the Human Rights Law Centre (HRLC) in 2011, and has led much of its work on LGBTI rights, marriage equality, gender recognition, and equality law reform, including an amicus curiae intervention in the case of Norrie May Welby in the High Court.
[14] In December 2018 Brown she was appointed inaugural chief executive of new LGBTI advocacy organisation Equality Australia.
[18] Brown also believes that any requirement for parental support before a child undergoes Gender reassignment surgery is, "abhorent.
[14] In the 2019 Queen's Birthday Honours Brown was awarded the Medal of the Order of Australia (OAM) for "service to human rights, and to the LGBTIQ community".
[21] In October 2019 she was named winner of the Social Enterprise and Not-for-profit category in The Australian Financial Review's 100 Women of Influence awards.