Lorenzo began his ballet training in 2007 at the age of eight at the Free Harmony Dance Time dance school in Bolzano Vicentino (VI), Italy. He studied various subjects at the school for seven years before transferring to the professional ballet school Il Balletto in Castelfranco Veneto from 2014 to 2015. His main teachers were Susanna Plaino, Oleg Grachov, and Stefania Pigato. Since 2011, Lorenzo has participated in various ballet competitions and workshops. In September 2015, Lorenzo began his training in the Advanced Study 1 class to become a stage dancer with a recognized federal proficiency certificate (EFZ) at the Zurich Dance Academy.

For the 2016-2017 school year, the Pierino Ambrosoli Foundation supported him with a scholarship for the Advanced Study 2 program at this school.

For his final year of studies (2017-2018) in the Dance Academy's Advanced Study 3 program, Lorenzo once again received a scholarship from the Pierino Ambrosoli Foundation.

As of the 2018/19 season, Lorenzo Galdeman has been a member of the Graz Opera Ballet. In the 2019/20 season, he will perform in the following productions: "Cinderella," "Too Beautiful to Die," "Swan Song," "Happy (No) End," "Guys and Dolls," and "Die Fledermaus."

Since 2018, he has also been a soloist and member of the corps de ballet at the Graz Opera, dancing a diverse repertoire ranging from classical to contemporary works, musicals, and operettas. During this time, he also created his own choreographies and taught ballet at the opera's affiliated school. In 2022, Lorenzo joined the creative and modeling agency Flare Talents as a model, choreographer, creative assistant, and director. He also created his first original piece, STAR WALK, for which he developed the concept, choreography, and music.

In 2025, he has captivated audiences in his role in the classic musical "The Phantom of the Opera" at the Raimund Theater in Vienna (AT).

With his unique stage presence and passion, Lorenzo embodies a character, both as Hannibal's guard and in the musical's ensemble, that has moved and inspired generations.