He passed the entrance exam of Conservatoire de Rueil-Malmaison and then pursued further study in Paris during 2007-2011. During this period, he studied with Prof. Andre Gilbert, and competed various diplomas, including: C.lllSpe 1 Prix, Diplome d’Etudes Musicales, Prix d’Excellence as well as the Perfectionnement Prix de Virtuosite.
Yen-Chieh performed with various famous Wind Orchestra, including Taipei Symphony Orchestra TSO Wind Orchestra, National Taiwan Symphony Orchestra Wind Orchestra, Wings of the Angles Wind Band, Taiwan Wind Ensemble. Especially, he shown as a soloist with concert band or summer festival band.
In addition to performing, he also has passion with teaching. He is a euphonium and tuba teacher, music gifted class and Ministry of National Defense Symphony Orchestra. In the past, he guided students participated the National Student Competition of Music, and got the 1st prize (young artist and brass quintet).