In 2012, she was one of the representatives of the Philippines to the World Federation of Amateur Orchestra in Shizuoka, Japan. She is a member of UP Arco and was the principal of the 2nd-violin during their European tour and at the Festival International de Musique Universitaire in Belfort, France.

They won the Silver medal in the 7th International Youth Music Festival in Slovakia in 2015.  In 2016, they got 1st prize in the 2nd Musica Fiesta in Florence, Italy.

She represented the Manila Philharmonic Orchestra at the Asia Orchestra Week in Tokyo, Japan.

Julienne is also a member of the Metro Manila Concert Orchestra and the Manila String Machine. She also teaches the violin in the German European International School.