Omer Arieli grew up in Florence, Italy, where he studied violin, piano, composition, and chamber music at the Cherubini Conservatory of Music. From a young age, he performed across Italy as violinist and pianist. Omer studied conducting at the Jerusalem Academy of Music and Dance (with Mandy Rodan), at the University of Music and Performing Arts Vienna (Leopold Hager, H. Arman, Erwin Ortner, and Paul Gulda), and in masterclasses across Europe (M. Giulini, C. Davis)

Omer won first place in the Belvedere competition in Vienna in 2002 and a grant of the Euro-Asian Jewish Congress (EAJC) in Paris in 2005. He has coached famous singers, worked as coach and conductor in Austrian theaters and festivals, at the Mainfranken Theater in Würzburg, and the Maggio Musicale in Florence. He has conducted most Israeli orchestras, the Dortmunder Philarmoniker, the American Symphony, the Orchestra Maderna, and many student and amateur orchestras

Omer currently serves as music director and conductor of The Jerusalem Opera and the “Hovevei Hamusica” Orchestra. He works as faculty at the Jerusalem Academy of Music and Dance and as director of their Opera Workshop. Omer joined the staff of the Jerusalem Oratorio Choir in 2021 as conductor of the Klalit Choir