Su started her film career at the age of 15, acting in feature-length film Chicken Rice War (2000), which won the 2001 Discovery Award at the Toronto International Film Festival. Singapore’s national broadcaster Mediacorp approached Su’s mother with a proposal to groom Su into one of its artistes. Her mother refused. Su went to the United States to study Literature and Theatre Studies at Yale University instead. As an undergraduate, Su acted in, stage-managed, wrote and produced theatre and film.

Over summer vacations, Su interned for (((the artists den))) and Atlantic Records in New York City, and she was part of a team Singapore’s Ministry of Information Communication and the Arts assembled to research and conceive its National Arts Gallery. She also wrote and translated screenplays for Warner Films (HG) China, and Shanghai Media Group. After graduating from Yale, Su became a broadcast journalist for Hong Kong TV station Asia Television’s English News Division. During this period, she was also Hong Kong correspondent for national broadsheet The Straits Times.

Since obtaining her MFA in Dramatic Writing from NYU’s Tisch School of the Arts, on a scholarship from Singapore’s Media Development Authority, Su has been a staff writer on Mediacorp, HBO Asia and Netflix shows in English and Chinese. Her feature-length dance screenplay, A Song and a Dance, was a finalist in Orb Media’s Inaugural China-Hollywood Screenwriting Fellowship, and workshopped in a Torino Film Lab extended workshop. MacArthur Genius Grant recipient David Henry Hwang called Su’s thesis play Ubin “a lovely, poignant meditation on the nature of love,.”

Su’s play Russia (2008) was staged at the Yale Playwrights Festival, making her the only Singaporean playwright in the history of the festival to be featured. Four years later, her bilingual play 7 Days in Jing An (2012) would play to a sold-out audience in Shanghai. Her work has been staged and screened in Telluride, Glasgow, Moscow, Shanghai, Tokyo, London and New York. With Shanghai’s oldest improv comedy troupe, Zmack, she has performed in English and Chinese.

In 2020 while under lockdown, Su taught an Advanced Screenwriting virtual class to students from Multimedia University, Malaysia. 

Su is also a published poet and essayist, a trained vinyasa yoga instructor, and a mother of two. Her interdisciplinary background gives her a unique perspective and holistic approach to developing content. 

Only recently did Su find out from her mother about her missed opportunity to be a teen starlet.