She has gone on to collaborate with numerous notable brands including Pretty Little Thing, GymKing, MVMT Watches, The Couture Club, Ziaja Skincare, Benefit Cosmetics, amongst others.

[citation needed] In 2002 at the age of 9, she took part in a cross-community project that enabled her to experience life in the United States for 6 weeks.

[6] After entering Miss Bikini Ireland 2017, O'Donnell was crowned the winner, picking up a €15,000 reward and an all-expenses-paid trip to the world finals of Swimsuit USA (SUSA) International for the chance of winning a prize worth $80,000.

[7][8][9] After winning Miss Bikini Ireland 2017, O'Donnell qualified for competing in Swimsuit USA International Model 2017 in which she finished in the top 30 finalists.

[12] The pageant was hosted by James Deakin and telecast on TV5 and FOXlife, with a virtual tour of the world in the opening number and featured the delegates in their eco-angel and respective national costumes.