[1][2] Voisey worked in restaurant management and as a bartender in London, Barcelona, Buenos Aires and New York and opened Apartment 195 in London in 2002.
[6][4][7] In the mid-2010s Voisey became a portfolio ambassador for William Grant & Sons, a Scottish distiller of spirits.
She eventually became director of brand advocacy and as of 2024 was global head of ambassadors for the firm.
[3][1] In 2011 she was named Wine Enthusiast's inaugural Mixologist of the Year.
[11][12] The Hot Charlotte, a gin, St-Germain, and lemon juice cocktail flavored with cucumber and garnished with Tabasco and cucumber, was named after her by its creator, Seattle mixologist Murray Stenson.