She is the principal soprano for Opera Australia of Australian and Mauritian descent.
[2] Alleaume's family came from Port Louis in Mauritius where her grandfather had been mayor and her grand-uncle curator of the opera house.
[5][6] In 2016 she became a member of the Opera Australia Moffatt Oxenbould Young Artist Program after winning the Dame Joan Sutherland Scholarship; in the same year she performed in a large scale "silent opera" (The Eighth Wonder in a headphones-only presentation) on the steps of the Sydney Opera House.
[1][7] Alleaume's voice was used in the 2021 feature film Falling for Figaro for the character Millie Cantwell.
[8] In 2021 she stepped into the role of Violetta in La traviata for Handa Opera on Sydney Harbour at short notice.