Born in South Sudan, Akech was raised in Kenya and moved to Australia, aged six, with her mother and five siblings as South Sudanese refugees. Despite being scouted by local agencies aged 13 and 14, she started her modelling career at 16, signing to Chadwick Models in Sydney, Australia.
After modelling in local fashion shows and at Melbourne Fashion Week, Akech was cast exclusively by Saint Laurent and walked the Spring/Summer 2017 show, subsequently signing to Elite Model Management in Paris. Akech has since walked for brands including Valentino, Dior, Givenchy and Versace and has appeared in editorials of various international editions of Vogue as well as i-D and Numéro magazine. She was the second black model in history to land the coveted bridal spot in a Chanel couture show, closing the house’s Haute Couture Autumn 2018 show.
She is featured in the 2018 Pirelli Calendar, shot by Tim Walker and styled by Edward Enninful . Akech is also on the Hot List on models.com, which features the most in-demand newcomers in the business.