[4][5] Liew was born in Kuala Lumpur, Malaysia and was educated at the Taman Midah Primary School.

[7] During the 2012 Thomas Cup quarter-final, he was defeated by Lin Dan from China, but not before he brought it into a rubber game of 21–17, 9–21 and 5–21.

His best performance was during the Yonex French Open, where he won his first Super Series title on 28 October 2012 after beating Viktor Axelsen from Denmark with the scores of 21–18 and 21–17.

[8] In March 2022, Liew was appointed as Lee Zii Jia's assistant coach.

[10] On 26 April 2023, Liew confirmed his retirement from professional badminton and would pay attention in coaching Lee Zii Jia.