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Tiahna O'Sullivan is a data and digital graduate at Energy Queensland since November 2021, with prior experience as a vacation student in strategic forecasting. Tiahna has also worked as an academic personal trainer and matching specialist at A Team Tuition Pty Ltd from January 2021 to November 2022, and served as an HSC testing assistant at Netflix Ocean Productions for a brief period in late 2020. Previous roles include marketing executive and marketing team leader at Marriott Vacation Club Australia from January 2017 to September 2020. Tiahna holds a Bachelor of Data Science and a Bachelor of Science in Applied Mathematics from Griffith University, completed in 2022, and a Bachelor of Science in Psychology from The University of Queensland, attained in 2015.