As soloist and chamber musician, Chien-Hsiu Ong has given recitals in Australia, Europe and Taiwan. Since her arrival in Melbourne in 2008, Chien-Hsiu has established a reputation as an inspiring, informed and dedicated cello teacher. Chien-Hsiu operates a private teaching studio in Balwyn and Forest Hill and is cello teacher at Siena College, Camberwell.

In addition to her teaching activities, Chien-Hsiu is in demand as a performer in Melbourne. Recent activities have included chamber music performances at the Melbourne Recital Centre and BMW Edge, live radio broadcasts for 3mbs-FM and frequent recitals with her husband, cellist Alister Barker.

An experienced orchestral musician, Chien-Hsiu has most recently worked extensively as a freelance cellist with Orchestra Victoria. Previously, she was a member of the Hong Kong Sinfonietta between 2006 and 2008. She has also worked as a freelance cellist with a wide variety of ensembles abroad, including the Hallé Orchestra (UK) the Detmolder Kammerorchester (Germany) and the orchestra of Opera North (Leeds, UK).

Chien-Hsiu won the Taiwanese Young Musician of the Year Competition in 2003. Consequently, she undertook a recital tour of Taiwan and gave an acclaimed performance of Tchaikovsky's Roccoco Variations with the National Symphony Orchestra of Taiwan.

Chien-Hsiu received her initial musical training in Taiwan with Cheng-Chieh Chang. In 1997 Chien-Hsiu moved to Germany for undergraduate studies at the renowned Hochschule Für Musik Detmold. Following graduation in 2002, Chien Hsiu remained in Detmold to undertake advanced studies with Marcio Caniero and the Auryn String Quartet.

Postgraduate studies took place at the Royal Northern College of Music in Manchester with the great Armenian cellist Karine Georgian and in 2005, Chien-Hsiu was awarded The College's highly prized Diploma in Professional Performance (PPRCM).

In addition to her primary cello teachers Christoph Rocholl, Marcio Caniero and Karine Georgian. Chien-Hsiu has also derived much inspiration from her contact in master courses with cellists Arto Noras, Wolfgang Böttcher, Wen-Sinn Yang.