As part of her undergraduate studies at the National Art School, Sydney, O’Sullivan spent a semester on exchange at the Glasgow School of Art, Scotland, where she learnt and refined a number of industrial ceramic processes such as designing and printing decals, plaster model/mould making and slip casting. These skills have stayed with her and form the foundations of her current art practice.

O’Sullivan focused her 2012 Masters of Fine Art research project on Australian imagery on porcelain. During this study she undertook a three-month internship at a remote Indigenous Art Centre in Ikuntji, NT. Since completing her MFA O’Sullivan has exhibited at the 4th ASNA clay triennial in Pakistan, had her work toured through the Emporio Armani stores in Australia, selected as a finalist for Qantas Spirit of Youth Awards and held a solo exhibition at Sabbia Gallery, Sydney and Craft Gallery, Melbourne. O’Sullivan has just returned from a mentorship with Sung Jae Choi in Gimhae, South Korea.