Giulio Arnofi studied with Daniele Agiman and obtained his Master’s degree in Orchestra Conducting at the "Giuseppe Verdi" Conservatory in Milan. Following this, he continued his professional studies with Maurizio Arena and attended masterclasses by Julius Kalmar, Dominique Rouits, Günter Neuhold and Matteo Beltrami. He studied composition with Cristina Landuzzi and attended a course in vocal interpretation with Alberto Zedda at the Accademia Rossiniana, Pesaro.

He has been assistant to Corrado Rovaris for Don Giovanni at the Teatro Regio in Parma, to Sesto Quatrini for Die Zauberflöte at the Teatro Regio in Turin, to Evelino Pidò for Il barbiere di Siviglia at the Teatro alla Scala in Milan and to Gianluca Marcianò for La forza del destino at the Teatro Principal in Majorca.

Recent and upcoming engagements include working with the Orchestra Sinfonica di Milano, the Orchestra Filarmonica Toscanini, the Orchestra di Padova e del Veneto, the North Czech Philharmonic, the FVG Orchestra, a string ensemble from the Orchestra della Toscana, the Orchestra da Camera di Pordenone, the Accademia d’Archi Arrigoni, the Orchestra Sinfonica di Lecce e del Salento and the Orchestra Sinfonica della Città Metropolitana di Bari.

Highlights of his operatic and orchestral engagements include The Bear by W. Walton at the Teatro dell'Opera Giocosa in Savona; Il barbiere di Siviglia by G. Rossini at the State Opera Varna in Bulgaria; Don Giovanni by W. A. Mozart at the Teatro Carcano in Milan; the Rossini's Stabat Mater and Die Zauberflöte by W. A. Mozart at the Teatro Comunale "Claudio Abbado" in Ferrara; the opening of the Respighi Festival 2024 La traviata by G. Verdi at the Teatro Mancinelli in Orvieto.
In November 2021 he made his debut with the Kosovo Philharmonic Orchestra in a concert under the auspices of the Italian Embassy in Kosovo and the United Nations, followed by further work in partnership with the same orchestra.
His most significant institutional engagements include a concert at the helm of the Young Musicians European Orchestra in Bethlehem and as resident artist for the Italian Cultural Institute in Mexico City during which he was both conductor and teacher at the Orquesta Filarmónica del Desierto and the Compañía de Ópera de Saltillo.

In 2024 he will record a CD focusing on Antonio Salieri with pianist Costantino Catena and the orchestra of the Accademia Arrigoni for Brilliant Classics, to be followed by a tour in Italy’s main concert seasons.

He is Artistic Director of the Florence Philharmonic Orchestra "La Filharmonie", and Artistic Secretary of the Lerici Music Festival.