She is known for starring as Jackie Lee in the Nine Network series A gURLs wURLd (2010–2011) and as Poppy Li in the Apple TV+ comedy Mythic Quest (2020–present).

It finally dawned on me that I’d never felt that kind of disappointment in my life, so doing this must be something I really wanted.Nicdao's big break happened in 2008 when she was cast as Jackie in A gURLs wURLd.

The show filmed in Sydney, Singapore, and Hamburg, so Nicdao completed the final year of high school by distance education with the goal to return to Melbourne and make a career out of jazz singing.

[5] In 2014, Nicdao joined the second season cast of Josh Thomas' Australian TV series Please Like Me, and played the role of Tom's girlfriend Jenny.

[10] Nicdao started training as a jazz singer when she was 15, inspired by Ella Fitzgerald, John Coltrane, Miles Davis, and Keith Jarrett.